1968  DATA  TABULATIONS
    AND  SUMMARIES
    CHICAGO
                  A
  •
^t/L
U. S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE
Public Htalth Service
Consumer Protection and Environmental Health Service

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        1968 DATA TABULATIONS AND SUMMARIES

        CONTINUOUS AIR MONITORING PROJECTS

        NATIONAL AIR SURVEILLANCE NETWORKS

                      CHICAGO
U. S. DEPARTMENT OF HEALTH, EDUCATION, AND WELFARE
                  Public Health Service
    Consumer Protection and Environmental Health Service
       National Air Pollution Control Administration
         Division of Air Quality and Emission Data
                 Raleigh, North Carolina
                    December, 1969

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The APTD series of reports is issued by the National Air Pollution Control
Administration to report technical  data of interest to a limited readership.
Copies of APTD  reports may be obtained upon request, as supplies permit,
from the  Office  of Technical Information and Publications, National Air
Pollution Control Administration, U.  S. Department of Health, Education,
and Welfare, 1033 Wade Avenue,  Raleigh,  North Carolina  27605.
National Air Pollution Control Administration Publication No. APTD 69-15

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                                     PREFACE
    One of the Continuous Air Monitoring Projects of the National Air Surveillance
Networks is to routinely operate continuous monitoring stations in six major cities.
The data tabulations in this report consist of hourly average concentrations of
six gaseous pollutants (carbon monoxide,  nitric oxide, nitrogen dioxide, sulfur
dioxide, total hydrocarbons/ and total oxidants), and 2-hour measurements of
soiling index levels in Chicago during 1968.  A brief summary of monthly means
and maximums and graphs of seasonal diurnal patterns of gaseous pollutants at
the Chicago station are included.  Annual frequency distributions of the data
pertaining to gases and soiling index are presented for all six CAMP stations.
    Summaries of 1968 data for  Cincinnati, Denver, Philadelphia, St. Louis,
and Washington, D.  C.,  are available from the National Air Pollution Control
Administration.  Similar data  summaries have  been published, along with various
analyses and interpretative material, for previous years' operations.
                                       in

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                                   CONTENTS


SECTION 1.  SUMMARIES OF MONTHLY MEANS AND MAXIMUMS AND	
             FREQUENCY DISTRIBUTIONS OF POLLUTANT CONCENTRATIONS	    1
    Table 1-1.  Summary of Monthly Mean and Maximum
               Concentrations of Carbon Monoxide  	    3
    Table 1-2.  Summary of Monthly Mean and Maximum
               Concentrations of Nitric Oxide	    3
    Table 1-3.  Summary of Monthly Mean and Maximum
               Concentrations of Nitrogen Dioxide	    4
    Table 1-4.  Summary of Monthly Mean and Maximum
               Concentrations of Sulfur Dioxide	    4
    Table 1-5.  Summary of Monthly Mean and Maximum
               Concentrations of Total Hydrocarbons	    5
    Table 1-6.  Summary of Monthly Mean and Maximum
               Concentrations of Total Oxidants	 .  . .    5
    Table 1-7.  Frequency Distribution of Concentration of
                 Gaseous Atmospheric Pollutants	    6
    Table 1-8.  Frequency Distribution of Soiling Index	    6

SECTION 2.  CHICAGO SEASONAL DIURNAL PATTERNS	    7
    Figure 1.   Seasonal diurnal  patterns of carbon monoxide concentrations  	   10
    Figure 2.   Seasonal diurnal  patterns of nitric oxide concentrations  	   10
    Figure 3.   Seasonal diurnal  patterns of nitrogen dioxide concentrations	   11
    Figure 4.   Seasonal diurnal  patterns of sulfur dioxide concentrations	   11
    Figure 5.   Seasonal diurnal  patterns of total hydrocarbon concentrations	   12
    Figure 6.   Seasonal diurnal  patterns of total oxidant  concentrations	   12

SECTION 3.  GASEOUS POLLUTANT DATA TABLES	   13
    Tables 3-1  to 3-12;  Carbon Monoxide	   16
    Tables 3-13 to 3-24:  Nitric Oxide	   28
    Tables 3-25 to 3-36:  Nitrogen Dioxide	   40
    Tables 3-37 to 3-48:  Sulfur Dioxide	   52
    Tables 3-49 to 3-60:  Total Hydrocarbons	   64
    Tables 3-61 to 3-72:  Total Oxidants	   76"

SECTION 4.  SOILING INDEX DATA TABLES  	   89
    Table 4-1.    January  1968, 2-hour Average Soiling Index	   92
    Table 4-2.    February 1968, 2-hour Average Soiling Index	   93
    Table 4-3.    March 1968, 2-hour Average Soiling Index	   94
    Table 4-4.    April 1968, 2-hour Average Soiling Index	   95
    Table 4-5.    May 1968, 2-hour Average Soiling  Index	   96
    Table 4-6.    June  1968, 2-hour Average  Soiling  Index	   97
    Table 4-7.    July 1968, 2-hour Average Soiling  Index	   98
    Table 4-8.    August 1968, 2-hour Average  Soiling  Index	   99
    Table 4-9.    September 1968, 2-hour Average Soiling Index	100
    Table 4-10.   October 1968, 2-hour Average Soiling Index	101
    Table 4-11.   November 1968, 2-hour Average  Soiling Index	102
    Table 4-12.   December 1968, 2-hour Average Soiling Index	103
                                        IV

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              SECTION 1.
   SUMMARY OF MONTHLY MEANS AND
MAXIMUMS AND FREQUENCY DISTRIBUTIONS OF
      POLLUTANT CONCENTRATIONS

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     TABLE  1-1  ! SUMMARY OF MONTHLY MEANS AND MAXIMUMS FOR CARBON MONOXIDE

   CHICAGO                .                                  1968

MONTH


JAN.
FEB.
MARCH
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
OCT.
NOV.
DEC.
DAYS
VALID
DATA

29
28
25
15
I
11
18
23
21
29
30
29
MO.
AvG.
CONC.
(PPM)
6.5
6.7
6.1
A
A
A
6.5
7.1
6.5
5.6
5.9
4.9
MAX
24 MR.
CONC.
(PPM)
13.
16.
10.

13!
12.
11.
12.
12.
10.
11.
13.
. MAX.
CONC.
DAY

26
28
8
30
3
19
19
28
5
12*
15
27
HRLY. AvG. CONC.
CONC.
(PPM)
23.
40.
27.
26.
18.
18*
19.
27.
24.
23.
22.
33.
DAY

26
28
8
19
3
20
26
20
5
31
6
27
HR.

16
17
16
16
16
15
15
16
16
16
17
14
5 WIN.
CONC.
(PPM)
35.
51.
49.
39.
48.
25.
37.
42.
51.
57.
46.
47.
MAX.
INST.
DAY

26
28
8
2
3
19
26
28
27
25
5
27

CONC.
TIME

1610
1710
2015
1725
2215
1610
1325
1640
1610
1515
720
1415
YEAR
259
6.2
16.
40.
57.
     TABLE  1-2 1 SUMMARY OF MONTHLY MEANS AND MAXIMUMS FOR NjTRlC OXIDE
   CHICAGO
         DAYS MO.
 MONTH  VALID AVG.
YEAR
                 MAX.
             24 HR. CONC.
                          MAX.
                    HRLY. AVG. CONC.
                                    1968

                                      MAX.
                               5 WIN.  INST. CONC.


JAN.
FEB.
MARCH
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
OCT.
NOV.
DEC.
DATA

24
20
31
21
31
28
30
31
30
31
25
24
CONC.
(PPM)
0.087
0.106
0.091
0.049
0.075
0.044
0.037
0.053
0.075
0.071
0.083
0.100
CONC.
(PPM)
0.14
0.17
0.21
0.11
0.13
0.08
0,09
0.13
0.14
0.14
0.12
0.23
DAY

27«
26
17#
19
6
25
29
28
13
11
27
27
CONC.
(PPM)
0.31
0.44
0.61
0.31
0.27
0.19
0.25
0.50
0.40
0.45
0.24
0.39
DAY

10
13
17#
30
30
25
29
28
26
11
25
27
HR.

8
8
3
6
23
8
6
6
7
7
8
17
CONC.
(PPM)
0.37
0.52
0.66
0.35
0.37
0.21
0.27
0.56
0.44
0.56
0.29
0.45
DAY

10
19
16*
30
6
20
29
28
26
11
25
17
TIMI

850
755
2355
615
550
515
635
630
705
700
835
745
326   0.072
       0.23
            0.61
                  0.66
                A « AVERAGE NOT CALCULATED BECAUSE OF INSUFFICIENT DATA
                * : INDICATES SATURDAY
                * t INDICATES SUNDAY

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TABLE 1-3 ! SUGARY OF MONT
CHICAGO

MONTH


JAN*
FEB.
MARCH
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
OCT.
NOV«
DEC.
DAYS
VALID
DATA

27
20
31
23
31
30
27
28
29
31
29
Ifi
MO.
AvG.
CONC.
(PPM)
0.037
0.049
0.054
0.032
0.060
0.054
0.043
0.052
0.051
0.043
0.036
0.044
MAX
24 MR.
CONC.
(PPM)
0.06
0.07
0.09
0.07
0.09
0.10
0.07
0.09
0.08
0.07
0.05
0.06
.
CONC.
DAY

17
26
17*
29
31
7
12
30
13
12*
13
17
                                          MAX,
                                    HRLY. AVG. CONC.
YEAR
324   0.049
0.10
 CONC.
 (PPM)

0.07
0.10
0.17
0.11
0.16
0.14
0.17
0.18
0.14
0.14
0.10
0.08

0.18
                                            DAY  MR.
                                            17  16
                                            23   9
                                            17# 10
                                            30
                                            31
                                             7
                                            12
                                         7
                                        16
                                        16
                                        10
                                            23  11
                                            13   8
                                            12* 12
                                            22  11
                                            11  15
                                                    1968

                                                      MAX.
                                               5 MIN.  IN5T.  CONC.
 CONC.
 (PPM)

0.07
0.13
0.18
0.13
0.17
0.15
0.29
0.20
0.16
0.15
0.11
0.09

0.29
                                                       DAY   TIME
                                        17
                                        23
                                        17*
                                        30
                                        31
                                         7
                                        12
                                        22
                                        13
                                        12*
                                        22
                                        17
1605
 910
 950
 750
1605
1630
 950
1025
 800
1130
1125
1220
     TABLE  1-4  I SUMMARY OF MONTHLY MEANS AND MAXIMUMS FOR SULFUR DIOXIDE
   CHICAGO

         DAYS MO.
 MONTH  VALID AVG.
YEAR
                 MAX.
             24 HR, CONC.
                   MAX.
             HRLY. AVG.  CONC.
                        1968

                          MAX.
                   5 MIN. IN5T. CONC.


JAN.
FF3.
MARCH
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
OCT.
NOV.
DEC.
DATA

29
24
26
23
28
27
25
31
26
31
27
16
CONC.
(PPM)
0.265
0.247
0.182
0.088
0.047
0.031
0.052
0.054
0.061
0.101
0.139
A
CONC.
(POM)
0.51
6.44
0.36
0.23
0.17
0.07
0.13
0.15
0.12
0.18
0.27
0.35
DAY

17
6
15
12
27
6
16
23
13
25
12
2
CONC.
(ppwj
0.82
0.86
0.76
0.49
0.61
0.32
0.37
0.62
0.30
0.59
0.85
0.57
DAY

17
6
26
6*
22
6
16
24*
14*
30
14
3
HR.

10
0
10
0
7
7
8
20
9
7
11
6
CONC.
(PPM)
1.33
0.99
1.09
0.72
1.11
0.48
0.71
1.09
0.50
0.73
0.99
0.71
DAY

16
6
30*
12
22
6
21*
24*
14*
30
14
4
TIME

1005
1205
1340
1125
735
730
1630
2045
945
700
1145
1855
313   0.117
0.51
0.86
1.33
                A  j AVERAGE NOT CALCULATED BECAUSE OF INSUFFICIENT DATA
                *  t INDICATES SATURDAY
                *  : INDICATES SUNDAY

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     TABLE   1-5 J 5UM^ARY OF MONTHLY MEANS AND MAXIMUMS FOR HYDROCARBON
   CHICAGO                                                  1968

MONTH


JAN*
FEB.
MARCH
APRIL
MAY
JUNE
JULY
AUG.
SEPT.
OCT.
NOV.
DEC.
DAYS
VALID
DATA

25
23
31
20
28
26
24
23
11
2fl
22
31
MO.
AVG.
CONC.
(PPM)
2.84
3.09
3.43
3.42
3.11
2.84
3.05
2.81
A
2.55
2.39
2.44
MAX
24 HR.
CONC.
(PPM>
3.7
5.2
5.4
A. 3
4.4
3.9
4.0
4.0
3.2
3.6
2.9
4.2
MAX.
CONC.
DAY

22
6
17*
11
31
6
11
28
7*
12»
22
27
HRLY, AVG. CONC.
CONC.
(PPM)
8.2
12.3
11.9
6.9
7.0
7.1
7.3
8.5
6.6
7.3
6.9
7.1
DAY

22
6
17#
6«
21
8*
4
7
6
4
30*
27
HR.

17
0
3
0
2
1
1
10
19
23
1
17
5 MIN.
CONC.
(PPM)
8.9
15.6
15.2
14.3
15.2
15.0
14.3
15.7
16.8
17.3
15.2
13.2
MAX.
INST.
DAY

2
6
16*
6*
21
27
10
22
6
2
30*
6

CONC.
TIME

745
5
2340
10
230
20
2100
55
1940
2035
125
2215
YEAR
292
2.89
5.4
12.3
17.3
JAN
FEB.
MAR
APR
MAY
JUNE
JUL
AUG
SEP
OCT»
NOV.
DEC
YEAR
TABLE 1-6 : SUGARY OF MONT
CHICAGO

NTH


.
.
CH
IL

E
Y
.
T.
.
.
.
DAYS
VALID
DATA

4
14
31
19
28
22
21
26
25
20
20
13
MO.
AVG.
CONC.
(PPM)
A
A
0.015
0.019
0.029
0.029
0.044
0.041
0.027
0.014
0.021
A
MAX
24 HR.
CONC.
(PPM)
0.01
o.oo
0.05
0.03
0.05
0.06
0.11
0.08
0.05
0.04
0.04
0.03
.
CONC.
DAY

28*
25*
8
13*
31
9*
19
4*
13
12*
15
2
243   0.024
        0.11
                                          «AX.
                                    HRLY. 
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Table 1-7. FREQUENCY DISTRIBUTION OF CONCENTRATION OF GASEOUS ATMOSPHERIC POLLUTANTS
                      (5-minute values, concentration in parts per million)

City/pollutant
CHICAGO
CARBON MDNOXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
TOTAL OXIDANT
CINCINNATI
CARBON MDNOXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
T°TAL 9XJPANT
DENVER'
CARBON MDNOXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
TOTAL OXIDANT
PHILADELPHIA
CARBON MDNIXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
TOTAL OXIDANT
ST. LOUIS
CARBON MONOXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
TOTAL OXIDANT
WASHINGTON D.C.
CARBON MDNOXIDE
NITRIC OXIDE
NITROGEN DIOXIDE
SULFUR DIOXIDE
HYDROCARBON
TOTAL OXIDANT
Valid
data
f,
65
79
78
80
75
55
57
3"*
73
76
81
26
71
62
71
60
71
US
1*8
70
77
89
60
U2
86
66
81
90
89
U8
82
71
6U
7U
82
59
Frequency distribution, percent
Minimum 10
0
.00
.00
.00
.0
.00
0
.00
.00
.00
.5
.00
0
.00
.00
.00
.0
.00
0
.00
.00
.00
.0
.00
0
.00
.00
.00
.u
.00
0
.00
.00
.00
.0
.00
1
.01
.03
.01
1.9
.00
3
.00
.02
.00
1.7
.00
1
.00
.01
.00
1.7
.00
3
.00
.02
.01
1.3
.00
2
.00
.01
.00
2.0
.00
1
.00
.02
.00
1.6
.00
30
3
.03
.ou
.OU
2.3
.01
u
.01
.02
.00
2.0
,0*
3
.01
.02
.00
2.1
.01
6
.02
.03
.03
1.6
.01
3
.01
.02
.00
2.6
.01
2
.01
.03
.00
1.8
.01
50
5
.06
.05
.08
2.7
.02
5
.03
.03
.01
2.2
.02
U
.02
.03
.01
2.5
.03
8
.03
.03
.05
1.9
.02
U
.02
.02
.01
3.1
.02
3
.01
.OU
.02
2.0
.02
70
7
.09
.05
.1U
3.2
.03
6
.06
.OU
.02
2.6
.03
6
.OU
.OU
.02
3.1
.OU
10
.05
.OU
.08
2.3
.03
.ol
.03
.03
3.7
.03
U
.03
.05
.05
2.3
.03
90
13
.15
.07
.28
U.I
.05
9
.18
.05
.OU
U.O
.05
11
.10
.06
.03
u.u
.06
15
. .12
.07
.19
3.3
.05
8
.08
.OU
.07
5.0
.OU
6
.08
.08
.10
3-0
.06
95
16
.18
.08
.36
U.7
.07
11
.27
.06
.06
5.1
.06
lU
.1U
.07
.OU
5.U
.07
18
.18
,08
.28
U.I
.06
10
.11
.05
.11
6.0
.05
8
.13
.09
.13
3.6
.06
98
20
.23
.10
.U8
5.6
.09
15
• 38
.07
.08
6.5
.08
19
.21
.09
.06
7.0
.09
22
.28
.10
.Uo
5.1
.08
13
.16
.06
.18
8.0
.07
11
.23
.11
.17
U.9
.10
99
2U
.28
.11
.57
6.6
.10
31
.1*6
.08
.10
7.U
.10
2U
.26
.U
.08
8.5
.ia
25
.Ul
.12
.1*8
5.9
.10
16
.20
.07
.23
9-U
.08
lU
• 33
.12
.20
6.0
.12
Maximum
57
.66
.29
1.33
17.3
.U7
U5
1.26
1-19
l.Ug
18.1
• 19
90
.68
.38
1.81
18.7
.U3
U9
1.68
.22
1.10
13.3
.31
U7
.UU
.20
1.33
17.1
.37
59
.76
.26
.U?
18.6
• 29
Arithmetic
mean
6.2
.071
.OU8
.117
2.90
.023
5.6
.06U
.031
.017
2.58
.022
5.3
.036
.036
.012
2.89
.029
8.5
.05U
.039
.080
2.1U
.022
U.6
.032
.023
.028
3.UO
.022
3.3
.035
.OU7
.036
2.23
.027
             Table 1-8. FREQUENCY DISTRIBUTION OF SOILING INDEX
           (2-hour measurements, concentration in COHS/IOOO lineal feet)

                               (CONCENTRATION IN  COHS/IOOO  LIN. FT.)

CITY
CHICAGO
CINCINNATI
PHILADELPHIA
WASHINGTON, 0 C
ST LOUIS
DENVER
VALID
DATA*
100
95
100
90
80
75
.0
.0
.0
.0
.0
.0
                                 10
                                 .5
                                 .2
                                 .3
                                 .*
                                 .2
                                 .2
FREQUENCY DISTRIBUTION-PERCENT
30 50 70 90 91 98
.9
.5
.6
.6
.*
.4
1.2
.7
.8
.9
.6
.6
1.6
1.0
1.1
1.2
.8
.9
2.3
1.7
1.8
2.0
U*
1.7
2.8
2.2
2.2
2.5
1.8
2.2
3.6
2.8
2.9
3.1
2.3
2.9
99
4.1
3.3
3.6
3.6
2.1
3.3
MAX
8.2
5.6
5.6
6.6
*«7
6.8
AHITH
MEAN
1.35
.87
.95
1.06
.T3
.80
               •  KEPORTED  TO NEAREST  FIVE PERCENT
               VALUES GREATER THAN 6.0  UNDERESTIMATE ACTUAL  VALUE

-------
    SECTION 2.
CHICAGO SEASONAL
 DIURNAL PATTERNS

-------
                     CHICAGO SEASONAL DIURNAL PATTERNS

     Figures 1  through 6 are graphs showing the seasonal diurnal patterns for carbon monoxide,
nitric oxide, nitrogen dioxide, sulfur dioxide,  total hydrocarbons, and total oxidants, respec-
tively.  Each figure contains four curves, one  representing each season, as follows:  long-
dashed line for summer, short-dashed  line for autumn, mixed-dashed line  for winter,  and
solid line for spring.
     Each curve represents a composite of the approximately 90 daily patterns in each season,
plotted by computer using 15-minute averages  derived from the basic 5-minute measurements.
Dotted lines indicate portions of the curve for  which insufficient data are available to provide
a valid seasonal average.
     The  seasons are defined as follows: Winter consists of December, 1967, and January and
February, 1968; spring consists of March, April, and May; summer consists of June, July, and
August;  and autumn consists of September, October and November, 1968.
     It should be noted that CAMP stations operate on a Standard Time basis.  Consequently,
during the seasons of Daylight Savings Time, 1-hour shifts  may be  noted in diurnal  patterns
of certain pollutants because of a shift in the patterns of human activity that generates these
pollutants.

-------
          SPRING:
SUMMER: •
                                      .—    FALL:.
                                    WINTER: — .—..—
16-OO
                                 g       12      is
                                   TIME DP DAY
                               IB
           FIGURE 1.  SEASONAL DIURNAL PATTERNS OF CARBON MONOXIDE CONCENTRATIONS
 0-1G
  0«OOL_L_j__i
                3        G       9      12       15      IS      21
                                   TIME OF DAY


              FIGURE 2.  SEASONAL DIURNAL PATTERNS OF NITRIC OXIDE CONCENTRATIONS
     10

-------
          SPRING:.
                           SUMMER: =	    FALL:
                                                          WINTER:	
   O-14
   0-12
Q- 0-10
   0-08
UJ
L!
   0-06
   0-O4
   0-02
0-00
              1	1	1	i	i	1	1	1	1	1	1	1	1	1	1	1	1	I	1	1	1	T
                            i   ......
                                                           i _ i _ i _ \ _ i
                 3        G       9      12      15      18      21      24
                                   TIME  OF  DAY


             FIGURE 3. SEASONAL DIURNAL PATTERNS OF NITROGEN DIOXIDE CONCENTRATIONS
   0-30
   0-25
   0 = 20
CL
D_
a
y  o-io
a
u
   0-05
   O-OO

      V ..
       J	1—i—i	i	i	i	i	i	i	i	i  i   i   i   i  i	i   i   i   i  i   i
             3       G       3      12      15      18     21      24
                                TIME DF  DAY
                FIGURE 4. SEASONAL DIURNAL PATTERNS OF SULFUR DIOXIDE CONCENTRATIONS —
                                                                            11

-------
          SPRING:.
                        SUMMER:—.	    FALL:..
WINTER:-.. — ..,
   00   i
h-
<
01
UJ
u
a
u
   3-50
   3-00
   2-50
   2-00
   1 • !b
                         i   i   i   i  i   i   i   i  i   i
                                                        i   i  i   i   i   i   r
                 3       6        9      12      15      18      21      24
                                   TIME  DF DAY

                FIGURE 5. SEASONAL DIURNAL PATTERNS OF HYDROCARBON CONCENTRATIONS
D_
CL
<
UJ
U

0-08


0»07


0»OG


0-05


0-O4


O»O3
   0" 01

   a-GO




    12
                                              /   s
              3       G   .   ' 9      12      1C5      18      21
                                TIME DF DAY

            FIGURE 6. SEASONAL DIURNAL PATTERNS OF TOTAL OXIDANT CONCENTRATIONS

-------
    SECTION 3.

GASEOUS POLLUTANT
    DATA TABLES
       13

-------
                      GASEOUS POLLUTANT  DATA TABLES

     Data tables 3-1  through 3-72 present hourly average concentrations by month
for the gaseous pollutants.  Values in these tables are the arithmetic means of the
5-minute values in the clock hour indicated.  An hourly average is not calculated
if fewer than seven 5-minute values during the hour were valid.  Similarly, if a
calendar day had fewer than  13 valid data hours, it is considered an invalid
data day, and the entire row of averages for the  day is deleted.  The reason for
this procedure, which results in the loss of a few valid hourly averages,  is that the
data that are lost are usually concentrated at the beginning or end of the day.
Since the pollutant concentrations show considerable diurnal variation, the inclusion
of such data would introduce a definite bias  into the monthly mean concentrations.
     The first summary line (titled MEAN) at the  bottom of the tables contains the
arithmetic means of the hourly averages, and hence represents the pattern of
diurnal variation for the month.  Again by the same validity criterion, this average
is not calculated unless 16 or more hourly averages are present.  The second and third
summary  lines are the number.of and  maximum of the hourly averages in the column.
     The first summary column (titled DAILY  MEAN) at the right of the tables  is the
arithmetic mean* of the 13 or more hourly averages comprising the row,  and the second
is the number of such valid hourly averages.   The third summary column, however,
is not the maximum hourly average for the day, but the maximum 5-minute value
included in the hours of valid data during the day.
     Four summary figures appear in the lower right corner.  The upper left is the
monthly average, an arithmetic mean, and appears only  if 16 or more days were valid.
The center number is the total number of valid hours included in the table, which offers
some basis for judging the representativeness of the monthly average.   The lower left
summary number is the maximum daily average from the column above.  The
lower right number is the maximum 5-minute value from the column above.
''The summary calculations are performed before the hourly averages are rounded.

                                        15

-------
CT5
      CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section, Laboratory ol Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department ol Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                   Table 3-1

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHICAGO.ILL.
CARBON  MONOXIDE
       JAN.  1968
DAY
MONTH
i
2
3
4
5
6*
7*
8
9
10
U
12
13*
14*
15
16
11
18
19
JC\M

21«
9?
23
24
25
26
27»
28*
29
30
31

NO.
MAX.
A.M.
12-1
6
3
4
3
5
7
3
5
4

8
8

8
4
3
4

4
i
4
4
2
7
15
7


3
5
27
15
1-2

2
3
3
4
5
3
4
3

6
6
2
7
4
2
»

4
i
2
3
1
6
11
7


3
4
28
11
2-3

2
2
2
3

3
3
3

5
5
2
7
3
2
i

3
1
1
2
1
6
8
7


3
3
28
8
3-4

2
2
3
3

2
3
3

3
4
1
8
3
2

3
0
2
2
5
7
6



3
27
8
4-5

2
2
3
3

3
3
2

3
3
2
9
3
2

3
0
2
0
5
6
5



3
27
9
5-6

3
2
3
3

3
3
4

3
2
3
10
3
2

3
1
3
2
0
6
7
5



4
27
10
6-7


4
5
5

7

6
6
3
7
15
6
4

2
10
6
2
10
9
5



6
25
15
7-8


8
7
7

13
12
8
9
3
9
16
12
in
6

3
10
8-9
5

7

8
•5
20
11
8
8
3
12
14
10
7

3
10
9 9
5
14
9
6



8
26
16
6
12
9
7



9
25
20
9-1O
5
10
6
6
7
8
5
12

7
8
3
11
11
ID
7
5

1
8
9
5
15
12
6



7
26
15
10-11
4
7
6
5
4
9
5
8

8
8
3
9
10
8
5
6

2
9
6
3
12
14
6



6
26
14
1 1-12
3

4
5
4
9
4
8
5
8
8
7
8
4
8

6
5

2
11
5
2

12
7



6
25
12
P.M.
12-1
4

4
5
4
10
5
8
4
7
8
7
11
5
8


5

3
12
3
2

13
7


8
6
26
13
1-2
4

5
5
3
10
«>
7
5
9
8
7
12
5
9

7
5

5
11
3
3

14



8
6
25
14
2-3
5

5
7
4
9
5
8
6
11
9

13
5


7
5

5
13
4
6

11
17


10
7
24
17
3-4
6

7


9
S
8
8
14
14

13



8



11
9
13

10
15


8
10
19
15
4-5
5
16
9
10
5
10
5
7
20
18
11
15
6

11
11
i n
10


11
6
13
23
11
20


10
11
26
23
5-6
5
17
8
8
6
8
5
10
21
20
12
12
5
19
12
10
10


18
12
7
13
17
10
20


11
11
27
21
6-7
5
11
7
6
5
6
6
6
11
13
9
8

13
9
7
7


12
8
5
11
17
9
20


9
9
27
20
7-8
5
12
4
5
4
7
4
9
9
7
8

11
7
6
5

8
9
6
2
8
17
8
15


5
7
28
17
8-9
5
8
4
5
4
5
5
8
10
5
7

10
5
5
5

9
5
3
9
20
9-1O
5
5
4
5
5
5
6
8
7
5
6

10
6
6
5


6
6
3
9
18
s : 7
13 13


5
7
28
20


5
6
27
18
1O-1 1
5
5
4
6
5
5
6
9
5
4
7

11
5
5
4

3
5
5
2
9
1 1-12
4
5
4
5
8
8
6
6
5
9
10

10
5
5
5

2
6
4
1
7
15 19
7 9
14 ' 10
1

5
5
6 6
28 1 28
15 i 19

MEAN
4.8
6.8
4.8
5.1
4.7
6.7
4.6
5.7
4.8
9.1
8.3
7.5
8.2
4.3
8.3
9.0
6.8
.7
4.8
4.2
3.6
5.6
7.2
4.4
5.4
12.8
9.8
10.3


6.4
6.5

12.8
NO.
OF
MRS
?<
1<
?<
22
22
2<
24
19
22
24
21
16
2<
n
2C
It
24
23
24
1?
24
24
24
24
19
24
23


15

63C


MAX.
8
25
14
14
16
14
10
14
10
30
30
16
20
11
23
29
19
14
12
12
32
34
23
29
35
23
30


18


35
        * Indicates Saturday or Sunday
         Local standard time used
                                                                                                                    TABULATED   WED.*  SEP.  lOt  1969

-------
coHTwtiouj MI NOMTMHK nracuM
Air Quality Section, Laboratory of Enjimtiinj and Physical Sciences
Diwskm of Ait Pollution, Public Health Senice
U. S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineerinj Center
Cincinnati, Ohio 45226
                                                                    Table 3-2

                                                            HOURLY AVERAGES OF
                                                  GASEOUS  POLLUTANT CONCENTRATIONS
                                                               CONCENTRATION IN PPM
                                                                   INFRARED ANALYSIS
    CHICAGO,ILL.
CARBON  *IONOXIDE
       FES.  1968
DAY
MONTH
1
2
3*
4*
9
6
7
9
10*
11*
1 5
13
14
i •

16
1 7«
18*
IT
20
21
22
23
24*
25*
26
28
29
MEAN
NO.
MAX.

12-1
4
9
9
11
8
11
2
4
2

6
4
4
4

4
3
4
4
9
8
8
5
3
28


1-2
3
4
4
8
4
9
2
1

9
3
3
3

A
3
3
3
4
4
8
4
2
28


2-3
2
3
3
7
9
7
1
2
2

4
3
3
3

4
3
2
3
4
4
5
5
2
28


3-4
1
3
4
4
4
6
1
2

4
3
2


3
2
3
3
3

4
2
28


4-5
1
3
3
4
4
4
2
2

2
3
2


3
2
3
3
4

5
2
28

A
5-6
2
4
4
3
4
3
3
2

2
4
2
3


3
3
4
4
4

9
2
28

M.
6-7
9
7
4
3
19
19
9
10

3
6

7
3
9
6
6


6
23


7-8
10
10
9
4
29
14
10
9

3
7

11
4
12
8
9
11


9
25


8-9
11
9
6
3
29
11
12
10

3
u
8

7
4
16
11
9
9
16


9
27


9-10
8
6
4
19
9
10
1 fl
8

2
7

6
4
I*
7
7
8



23


10-11
7'
8
3
12
3
8
8


8

3
4
9
7
7



23
1Z

t 1-12
6
7
7
11
4
10
9


6

4
9
7
7
6
7

7

25

•
12-1
6
6
8
3
11
4
9
7
9

4
6

3
5
7
7
6
8
10
4
7
7
28


1-2
6
6
11
7
11
5
9
10
8

9
6

4
5
6
7
8
7
8
11
4
7
8
28


2-3
7
8
9
14
10
9

7

9
6

4
5
9
8
6
5
10
7
6
13
26


3-4
10
9
11
15
12
7
17

11

6
9


9

9
5
10
10
9
10
8
24


4-5
11
11
14
14
18
9
19
12
8

10
8
7

7
5
13
11
10
12
9
12
22
11
26

p.
5-6
12
9
11
13
19
8
20
15
10

8
9

7
6
14
12
8
18
12
10
12
40
12
28

M.
6-7
11
7
8
14
13
5
11
10
7

7
6
7

5
5
9
9
7
7
16
9
12
7
36
9
28
36

7-8
9
5
11
10
12
6
7

6

6
6
4

4
4
8
6
7
9
9
9
5
34
7
28
34

8-9
8
5
10
8
14
5
6

8

5
6

4
4
8
6
6
10
11
6
8
35
8
28


9-10
7
5
9
7
17
4
5

6

5
5

3
4
8
6
7
8
6
5
7
35
7
28
33

10-1 1
6
7
8
8
23
6
7

6

6
4
4

4
5
6
5
6
6
8
9
5
6
34
7
28


1 1-12
6
7
11
8
18
4
6

6
4
4
5

5
4
7
5
6
7
11
6
5
32
7
28


MEAN
6.6
6.5
7.4
7.6
13.0
6.6
8.0
4.9
6.7
6.0
3.7
6.2
5.2
5.3
.6
4.7
4.5
4.0
7.0
6.9
6.6
6.2
8.1
7.7
5.7
6.6
4.9
16.2
6.7

NO.
OF
MRS
22
2«
2'
22
2<
2<
23
22
2«
2<
23
IS
24
">L

25
2<
22
24
24
24
24

21
642


MAX.
20
18
22
26
49
29
32
19
28
22
10
19
21
15
1 a

17
9
29
41
23
20
40
25
20
23
51


4 Indicates Saturday or Sunday
  Local standard time used
                                                                                                                   TABULATED   WEOo.  SEPo  10«  1969

-------
oo
      CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-3

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED ANALYSIS
    CHICAGO,ILL.
CARBON  MONOXIDE
      MARCH  1968
DAY
MONTH
2*
3*
4
5
6
7
8
9*
10*
11
12
13
1 4
15
17*
18
19
20
21
22
23*
24*
25

26
27
28
29
30*

31*
MEAN
NO.
MAX.

12-1
3
6
7
2
4
4
5
7
7
2
2
4
3
2


2
4
5
3
5
3



3
1
3



4
24


1-2
3
5
2
3
3
3
4
4
1
1
4
3
2


1
3
2
2
3
2


4
2
1
3



3
24


2-3
3
2
3
2
3
3
3
3
3
1
0
3
3
1


1
3
2
2
2
1


4
1
1
A



2
25


3-4
3
3
2
3
3
3
2
2
0
0
2
i
1


2
3
2
2
2
1


3
1
0
4



2
25


4-5
2
2
2
3
3
4
3
2
0
0
3
1


2
4
2
2
2
1


3
2
0
<,



2
25

A
5-6
3
2
2
2
4
3
5
2
2
1
1
3
3
2


3
4
3
3
2
2


4
3
0
5



3
25

M.
6-7
5
3

10
8
10
2
4
5
9
4


6
4
9
5
3
2


7
7
1
7



5
24


7-8
6
3
3
7
10
13
13
2

11
12
5


10
6
15
8
3
2


8
9
4
12



A
24
15

8-9
7
5
3
7
11
17
11
2

9
10
5


9
8
16
10
4
2


8
8
5
14



8
24


9-10
4
8
2
6

10
6
8
2

10
11
5


8
6
10
10
3
1


7
6
2
11



6
23


10-11
2
7
3
5

6
5
7
3
4
5

4


8
5
10
8
4
2


7
4
3
8



5
23


1 1-12
3
6
3
5

8
6
8
5
4
6

3


6
4
9

5
2


8
4

8



5
21


12-1
4
8
4
S
4
7
5
7
6
3
7
7

4


5
6
9
7
6
4


9
5
3
11



6
24


1-2
4
7
4
6
4
11
7
5
5
7
9

5


7
9
10
10
6



10
8
5
17



7
23


2-3
3
8
6
7
7
10
9
5
6
8
8




9
7
8
11
6
4


12
10
8
11



8
22


3'-4
5
9
4
9
7
9
9
9
6
6
12





10
9
14
13
7



14
10
8
13



9
21


4-5
7
8
4
11
12
13
13
27
5
7
13

8
14


12
10
13
14
6



13
11
9
15



11
23

p
5-6
9
10
6
12
17
11
13
22
6
8
17
12
11
14


12
15
10
14
6



12
10
10
11



11
24

M.
6-7
6
7
6
13
9
8
8
15
4
6
10
8
6
10


9
9
6
10
6



13
6
8
9



8
24


7-8
7
7
5
18
6
8
9
19
6
4
6
7
7
6


5
8
4
7
4



20
5
7
8



8
24
20

8-9
5
9
5
18
8
8
10
19
11
3
6
6
6
6


it
7
5
7
4



26
4
6
6



8
24


9-1O
10
3
8
7
8
8
16
6
3
6
7
8
5


4
7
5
7
3



21
3
5
7



7
24
21

10-11
8
7
4
5
7
7
6
16
7
3
4
7
5
5


it
5
5
5
4



18
3
4
5



6
24
18

1 1-12
6
8
3
4
5
7
6
12
8
2
3
6
5
5


5
5
5
6
4



3
2
6
14



6
24


MEAN
5.0
5.9
3.9
6.8
7.0
7.7
7.2
10.2
5.0
3.8
5.4
5.8
6.3
4.7
4.9


6.0
6.3
7.5
7.3
4.1
2.2


10. 0
5.3
4.1
8.7



6.1

10.2
NO.
OF
MRS.
23
2<
2'
2-
21
24
2<
2<
2<
2<
21
22
If
22


24
24
24
23
24
1^


23


24




568


MAX.
16
16
13
30
36
27
40
49
23
17
39
29
29
26


21
23
27
25
15
8


38
17
14
32





49
         Indicates Saturday or Sunday
         Local standard time used
                                                                                                                      ABULATED   WED..  SEP.  10,  1969

-------
CONTINUOUS MR MONITORING PROGRAM
Ait Quality Section, Laboratory of Engineering and Physical Sciences
Division of Ail Pollution, Public Health Sereice
U. S. Department of Health, Education, and Welfare

Robert A. Tall Sanitary Engineering Centet
Cincinnati, Ohio 45226
                  Table 3-4

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHICAGO,ILL.
CARBON  MONOXIDE
      APRIL  1968
DAY
MONTH
1
3
4
5
6«
7*
8
9
10
11
12
15
16
17
18
19
*
21*
22
23
24
25
26
27*
28*
29
30
MEAN
NO.
MAX.

12-1

2
3
4
10
2


4





i •









9
11
15

1-2
3
1
2
1
2


5





4









9
14
9

2-3
3
1
2
1
0


5





3









8
14
8

3-4
2
0
1
1
1


4





2









8
14
8

4-5

1
2
0
1


5





3









10
13
10
A
5-6

l
3
1
1


6





4









18
13
18
M.
6-7

4
S
8
1

12
7





11









21
13
21

7-8

9
9
10
1

17
7





11









17
13
17

8-9

5
6
7
0


6





13










11
13

9-10
7
9
4
7
0


3





11









14
13
14

10-11

5
4
4
1

9
1





7









11
13
11

11.12


4
5
1

7
1





8








12
9
13
12

12-1

8
3
7
4
2
7
7
1





9
i rt

8






15
9
14
15

1-2

6

7
5
5
10
4
1





14

10






15
14
13
15

2-3

8

9
4
6
11
8
2





18

14






15
20
13
20

3-4
15
8

19
5
5
13
11
2





23

15






14
17
14
23

4-5
18
11
7
14
6
3
12
10
6





26

14






15
22
15
26
p.
5-6
17
12
10
16
7
3
1 1
10
6





22








13
14
14
22
M.
6-7
10
7
9
10
5
1
3-
9
8





13








11
15
14
15

7-8
8
9
3
6
6
2
1
g
7






13








11
15
13
15

8-9
12
2
7
4
2
1
7
6






15

15






11
19
14
19

9-10
6
2
6
4
1
0
7
7






13

13


L



11
13
14
13

10-1 1
5
3
7
3
1
0

4






15

13






12
17
14
17

1 1-12
4
3
6
7
2
0
6
5
3





17

11






11
13
15
17
DAILY
MEAN
0.5
6.2
4.8
5.0
6.5
3.6
1.5

7.3
4.1





11. S

7»7






12.6
13.9
13,9
NO
OF
MRS
12
23
21
2
-------
      CONTINUOUS MR MONITORING PROGRAM
      Air Quality Section, Laboratory of Engineering and Physical Sciences
      Division of Air Pollution, Public Health Service
      U. S. Department of Health. Education, and Welfare
(O    Robert A. Tail Sanitary Engineering Center
O    Cincinnati, Ohio 45226
                   Table 3-5

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHICASO.ILL.
CARBON  MONOXIDE
         *AY  1968
DAY
MONTH
1
2
3
4«
5«
6
7
6
9
10
13
14
15
16
17
18«
20
21
22
23
24
25*

26«
27
26
29
30
31
MEAN
NO.
MAX.

12-1

































1-2

































2-3

































3-4

































4-5
































A
5-6
































M.
6-7

































7-8


14



























1
14

8-9


13



























1
13

9-10


10



























1
10

1 O- 1 1

































1 1-12

































12-1


15



























1
15

1-2


10



























1
10

2-3


13



























1
13

3-4


16



























1
16

4-5


18



























1
18
p
5-6


16



























1
16
M.
6-7


15



























1
15

7-8


u



























1
14

8-9


11



























1
11

9-1O


9



























1
9

1O-M


13



























1
13

1 1-12

































MEAN


13.2




























13.2
NO.
OF
HRS


1<



























14


MAX


48




























48
        * Indicates Saturday or Sunday
         Local standard time used
                                                                TABULATED   WED»*  SEP.  10«  1969

-------
CONTIKUOUS MR MOHITOMNG PROGRAM
Ait Quality Section, laboratory of Engineering and Physical Sciences
Oinsion ol Air Pollution. Public Health Service
U. S. Department ol Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Otlio 45226
                  Table 3-6

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHICAGO,ILL.
CARBON  MONOXIDE
       JUNE  1968
DAY
MONTH
1*
2*
3
4
9
6
7
8«
9*
10
11
12
13
17
18
19
20
21
22*
23«
24
25

26
27
28
29«
30«
MEAN
NO.
MAX.
A.M.
12-1














8
9
6
9






0
0

6
9
1-2













9
9
7
6
4






0
0

7
9
2-3













9
8
7
9
2






0
0

7
8
3-4













6
7
9
9
3






0
0

7
9
4-5













7
8
12
9
3






1
0

7
12
5-6













9
12
14
10
9






9
0

7
14
6-7













12
19
12
13
9






4
0

7
19
7-8













19
13
13
14
5






4
0

7
19
8-9














10
10
10
9




7

4
0

7
10
9-10














10
9
10
9




4
9
3
0

8
10
1O-I 1














12
9

7


14


9
3
2
0
8
14
1 1-12













11
12
11

9


11


4
9
1
0
9
12
P.M.
12-1













11
17
12

10


10

6
4
4
0
0
10
17
1-2













11
19
13
7
10


14

6
4

0
0
10
19
2-3













9
14
13
9
9


13

6
9

1
0
10
14
3-4













11
19
18
10
8


11

7
6
9
1
0
11
18
4-5













14
19
17
11
8


12

8
7
9
1
0
11
17
5-6













14
13
19
10
6


9

4
5
1
0
0
11
15
6-7








-




13
16
14
11
6


7

5
4
1
0
0
11
16
7-8













14
10
15
1?
6


7

4
3
3
1
0
11
15
8-9













13
12
10
10
6


9-IO













13
14
10
9
7


7 1 6
-L -
4 3
2 | 2
2 | 0

0
10
13
0
10
14
1O-1 1













12
9
9
11
6


7
1 1-12













10
9
7
9
9


6
1
4 3
1 1
2 1

0 0
10 10
12 10

MEAN













10.7
11.7
11.4
9.2
6.2


9.7

5.1
3.8
2.3
Oo4
0.0
U.7
NO
OF
MRS













20
24
24
21
24


14

14
15
22
20
"
212

MAX.













24
25
25
22
16


24

15
11
17
9
1
25
  * Indicates Saturday or Sunday
    Local standard time used
                                                                TABULATED   W E 0, t  SEP. 10.  19*9

-------
to
CONTINUOUS MR MONITORING PROGRAM
Aii Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U.S. Department of Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45226
                                                                              Table 3-7

                                                                      HOURLY AVERAGES OF
                                                           GASEOUS POLLUTANT CONCENTRATIONS
                                                                        CONCENTRATION IN PPM
                                                                             INFRARED ANALYSIS
    CHlCAGOtlLL.
CARBON  MONOXIDE
       JULY  1968
DAY
MONTH
1
3
4
6*
7«
8
9
10
11
12
13*
14*
15
16
17
18
19
20«
_
22
24
25

26
28»
29
30
31
MEAN
NO.
MAX.

12-1
3

8
7






2
1
2
3
3
7
7
i &
5









14
14

1-2
2

6
1





5
1
1
1
2
3
6
5

5



1



0
3
17
6

2-3
3

3
1
3





4
0
0
1
2
3
5
5

4



0



0
2
17
5

3-4
4

2
1
2





4
0
0
2
2
2
5
5

4



0



0
3
18
8

4-5
4

2
1
3





5
0
1
2
2
3
5
7

5



2



0
3
18
7
A
5-6
5

2
2
3





4
0

4
6
4

a

8







i

14
8
M.
6-7


2
3
2





6
0

7
7
6

8









3

12
8

7-8


2
4
2





10
1

6
R
7

6









5

12
10

8-9
4

1
4
2





13
1

7
7
6

6









3

13
13

9-10
5

2
3
3





12
2

7
6


7









1

13
12

10-11
5

2
4
3





4
3
6
7
8

11
9

9
9






2
6
16
11

1 1-12
6

3
2
3





6
3
6

10
6
13
14

12
9


9



2
7
17
14

12-1
7

2
3





6
4
6

10
11
12
11





12



3

15
14

1-2
7

2
7
5





7
6
7
11
12
9
14
12

u



16
10


5
9
18
16

2-3


3
8
6





7
6
8
11
12
11
12
14

14



17



6
10
17
17

3-4


3
9
7





7
7
9
11
13
14
15
14

17



19



6
11
17
19

4-5


3
12
5





8
7
9
13
12
15
17
17

12
15



18



5
11
17
18
p
5-6


4
7





8
6
8
10
10
12
13
15

12



17



2

15
17
M.
6-7
6

3
5
3





7
6
6
9
9
11
10
12

11
13



12



2
8
17
13

7-8
5

2
6
1





9
6
6
fl
10
11
11
13

11
10



13
13


3
8
17
13

8-9
5

4
7
3





8
6
8
9
8
12
10
14

11
8




14


3
8
16
14

9-IO
6

5
9
2





8
5
5
8
8
12
15
9

10
11



9



6
8
16
15

10-11
6

5
11
2





6
3
3
7
7
11
13
11

8
10



8



5
7
16
13

1 1-12
5

3
8
1





4
2
3
5
5
10
11
6

7



9



3
5
16
11

MEAN
4.9

3.0
5.2
3.3





6.9
3.3
4.8
6.6
7.4
8.3
10.7
9.8

8.5
9.6
7.9


10.2
7.7


2.7
6.6

10.7
NO.
OF
HRS.
1C

24
22
21





21
2t
19
22
24
22
1?
2*

22
19
13



Zl


23

378


MAX.
13

14
17
12





25
15
19
18
19
23
30
25

24
25
29


37
Z7


17


37
  * Indicates Saturday or Sunday
    Local standard time used
                                                                                                                            ABULATED   WED.*  SEP. 10t  1969

-------
      CONTINUOUS MR MONITORING PROSRMI
      Aif Quality Section, Ubotitoiy ol Engineering and Physical Sciences

      Division ol Air Pollution, Public Htilth Senice

      U. S. Department of Health, Education, and Wellaie



      Robert A. Tall Sanitary Engineering Center

      Cincinnati, Ohio 45226
                  Table 3-8


          HOURLY AVERAGES OF

GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED ANALYSIS
    CHICAGOtlLL.

CARBON  MONOXIDE
       AUG.  1968
DAY
MONTH
1
2
3*
4*
5
6
7
8
9
10*

11*
12
13
14
15
16
17*
18*
19
20
21
23
94«
25*
26
27
28
29
30
31*
MEAN
NO.
MAX.

12-1
1
4
2
4
0
1


5
5

4










5
1
2
2
1
10
3
3
3
20
10

1-2
1
5
2
0
1
1


3
R

4
0







2

4
0
2
2
3
4
3
3
2
22
5

2-3
0
4
1
0
0
0


1

2
0







2

4
0
1
3
6
4
3
3
2
22
6

3-4
0
0
1
0
0
0


0

1
0







1

3
0
0
1
B
1
4
2
1
22
8

1-5
0
1
0
0
0
1


1

0
1







2

3
0
1
2
8
5
4
2
2
22
8
A
5-6
4
3
2
0

2
6

10

2








4

8
0

7
17
15
6
4
5
19
17
M.
6-7
7
5
3
1
6
4
11
12
14

1








5
7
8
1
9
12
18
16
8
4
7
23
18

1-8
7
9
5
2

6
6
8
14

0








4
8
9
1
12
11
6
13
12
6
6
22
14

89
5
5
7
2
4
3
7
4


1









5
5
1
10
7
4
8
7
6
5
21
10

9-1O
6
4
7
2
2
3
9
9


0
3







7
4
5
2
8
6
7
10
8
5
5
23
10

1O-1 1
6

6
2
3
6
10
8


2
9







8

6
2
8
7
9
10
7
6
6
21
10

1 1-12
5

9
4

7
9
5
14

2
7







9
8
8
4
12
6
9
9
11
7
7
22
14

12-1
7
5
7
4
4
8
10
7
14

4
7







11
9
10
5
11
10
10
9
12
10
8
24
14

1-2
7
6
9
7
4
10
12
13
16

6
6







14
11
12
14
8

12
14
14

9
10
22
16

2-3
7
7
12
8
4
11
14
8
13

8








20
13
16
12

16
19
21

9
12
21
21

3-4
7
7
9
U

12
15
7
14

9








24
17
17
17
15
19
16
23
20
24
10
14
22
24

4-5
7
9
12
11
5
12
15
6
16

11
7







27
14
15
14
12
17
18
26
20
23
9
13
24
27
p
5-6
6
7
8
9
5
9
10
10
11

7
5







12
13
12
13
7
13
13
25
16
15
7
10
24
25
M.
6-7
5
6
7
5
4
7
7
10
10-

4
6







10
13
11
12
9
7
7
20
12
11
4
8
24
20

7-8
8
7
9
5
5
9
8
11
9

4
6







12
12
9
11
8
7
6
7
12
10
10
f>
8
24
12

8-9
6
6
10
8
3
10
8
11
10

4
5







10
10
8
10
6

7
12
12
14
4
8
23
14

9-10
?
7
10
11
3
7
6
9
11

3
3







12
9
8
9
5
4
8
17
10
10
3
8
24
17

10-11
1
4
18
8
3
7
6
7
8

1
0







8
7
fl
9
6
5
5
13
11
11
4
7
24
18

1 1.12
1
7
13

2
3
5
4
6


0







6
6
6
6
3
3
4
13
14
4
3
5
22
14

MEAN
4>4
5.0
6.9
4.5
2.9
5.8
9.2
8.3
9.5
5.0
3.5
3.5







9.6
8.4
7.9
8.6
5.5
4.4
7.4
7.8
12.4
11.5
9.7
5.3
7.0

12,4
NO
OF
MRS
?<
2!
2<
2-
2C
2<
11
lr
21

21
n







22
22
24
24
24
2C
24
2(
24
22
2«

531


MAX.
35
24
23
18
12
22
31
24
27
20
22
12







39
23
22
25
13
23
37
34
42
38
34
24


42
to
CO
          Indicates Saturday or Sunday

          Local standard time used
                                                                          WED..  SEP.  10,  1969

-------
to
        CONTINUOUS AIR MONITORING PROGRAM
Alt Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U.S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                    Table 3-9

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHlCAGOiILL.
CARBON  MONOXIDE
      SEPT.  1968
DAY
MONTH
1*
2
3
4
5
6
8*
9
10
11
12
13
16
17
18
19
20
21*
22«
73


26
27
28*
29«
30
MEAN
NO
MAX.

A.M.
12-1
3
2
2
4
5
7
4





2
3
0
4
2
4
2

4
6
3
13
0
4
21
13

1-2

1
2
3
4
6
4





1
1
0
1
2
1

2
4
3

0
Z
19
6

2-3
0
0
2
'i
4
5
3





1
2
0
0
0
1
1

1
2
1
5
0
2
21
5

3-4
0
1
2
2
4
6
3





1
1
0
0
0
1

1
1
1
7
0
2
21
7

4-5
0
0
2
3
5
8
3





1
2
2
0
1
1

2
2
1
<3
I
2
21
8

5-6
0
1
6
7
8
8
11
4





4
3
11
3
1
1 O

12
4
5
2
8
6
21
19

6-7
0
3
6
11
12
10
11
4





9
5
16
5
2
7

21
8
11
3
10
9
21
21

7-8
1
2
8
11
17
8
8
4





10
10
10
5
1
5 t
19
IS
S
6
2
10
9
21
21

8-9
1
2
6
8
15
8
6
4






5
10
3
4
1 A


10
9
3
1
5
6
19
15

9-10
Z
Z
8
6
16
7
5






6
8
14
4
i -y
4

13
B
4
2

7
19
16

1O-1 1
1
Z
8
7
1Z
8
6





5
5
3
11
5
7

8

4
1
3
6
18
12

1 1-12
Z
3
10
8
16
8
9
7





4
4
3
14
6
8

6

5
3
5
7
19
16

P.M.
12-1
2
5
12
8
14
8
10
8





7
3
3
7
8
7
6

11
13
5
4
5
7
21
14

1-2
2
7
13
7
19
9
11
9





7

5
8
10
6

a
8
9
4
6
8
20
19

2-3
5
9
15

23
11
12
9





7


9
17
8

12
14
9
5
10
10
18
23

3-4
5
8
19

18
15
14
8





9

9
8
19
6

15
15
11
5

11
18
19

4-5
5
10
16
13
24
13
13






8
9
16
7
17
7

19
20
8
4
10
12
20
24

5-6
4
13
14
10
15
12
10






5
7
14
11
14
6

11
10
4
4
12
10
20
15

6-7
3
10
13
8
11
13
9

-




4
5
11
9
14
5

4
9
4
5
10
8
20
14

7-8
4
11
1?
8
11
14
7






3
5
14
10
11
5

4
6
4
4
7
7
20
14

8-9
,
9
10
7
10
11
7






4
4
10
10
9
5
9-10
3
10
R
7
9
11
7






5
1
7
4
9
4
3
5 10
6 6
4 6
3 ' 4
5
7
20
11

4
6
20
11
1O-1 1
4
6
7
7
7
18
7






5
4
8
4
10
3
1 1-12
2
4
6
6
6
10
6






3
3
6
7



9 7
5 3
13 13
3 2
3 2
6 5
20 19
18 13
1 	 1 	 1

MEAN
2.3
5.0
8.6
7.0
12.0
9.4
8.5
5.3





4.6
4.2
7.1
6.4
7.2
7.5
5.0
4.5
8.8
7.5
5.7
3.9
5.2
6.5
12.0

NO.
OF
MRS
2:
2<
2<
22
2<
22
1C





22
21
23
24
23
2
23
24
24
22
24,
23
23
477


MAX.
17
23
27
21
41
36
20
14





17
21
29
29
34
40
29
19
36
51
24
24
19
51

         * Indicates Saturday or Sunday
           Local standard time used
                                                                                                                     TABULATED
                                                                                                                                        SEP.  10t  1969

-------
        CONTINUOUS Mil MONITORING PROGRAM
        Ait Quality Section, Laboratory of Engineering and Physical Sciences
        Division of Air Pollution. Public Health Senice
        U.S. Department of Health, Education, and Welfare


        Robert A. Taft Sanitary Engineering Center
        Cincinnati. Ohio 45226
                  Table 3-10

          HOURLY AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                 INFRARED ANALYSIS
    CHICAGO,ILL.
CARBON  MONOXIDE
       OCT.  1968
DAY
MONTH
1
3
4
5*
6*
7
a
9
10
11
13*
15
16
18
19*
20*
21
22
23
24
25

26*
27*
28
29
30
31
MEAN
NO.
MAX.
A.M.
12-1
2
1
1
11
2
1
1
1
4
9

1
1
1
2
3
0
1
3

3
4
2
4
5
3
3
28
11
1-2
1
2
1
1
7
2
t
I
1
1
3
0
1
0
0
0
1
0
0
1

2
3
1
3
4
3
2
29
7
2-3
0
1
1
0
*
1
1
1
0
1
2
0
1
0
0
0
0
1
0
1

1
2
0
2

2
1
28
4
3-4
0
1
1
2
2
1
1
1
0
3
2
0
0
0
0
0
0
0
0
1

1
2
0
3
10
2
1
29
10
4-5
0
1
2
3
1
4
1
1
4
1
0
2
1
0
0
1
0
0
2

2
2
1
2
6
0
2
29
6
5-6
0
3
5
*
1
10
7
4
10
3
2
8
4
0
0
7
3
3
13
7

4
1
1
3
7
0
4
29
13
6-7
3
5
9
8
2
7
6
10
21
5
4
11
4
1
0
23
2
7
19
15

5
2

6
10
1
7
28
23
7-8
6
6
ft
9
2
8
9
12
17
a
5
15
5
1
0
14
4
10
16
14

4
2
11
10
10
6
ft
29
17
8-9
4
7
6
6
5
6
5
8
9
4
7
3
2
0
8
2
8
13
12

3
2
6
8
10
7
6
28
13
9-10
3
3
9
5
2
6
9

5
11
3
9
5
2
1
6
3
12
12

4
2
8
8
10
6
5
27
12
1O-1 1


6
2
8
5

5
9
4
7

4
2
6
1
9

5
3
6
6
8
7
5
24
9
1 1-12

6
7
3
6
5
6
6
18
3
10

5
4
5
1
11
14

7
4
8
6
10
11
7
27
18
P.M.
12-1

8
7
5
6
7
10
14
6
11
6
6
6
4
3
10
13

9
5
9
6
13
11
8
27
14
1-2
3
8
9

10
10
10
10
11
8
12
6
6
7

2
12
17

8
6
9
7
14
13
8
27
17
2-3
5
8
12

10
12
12
13
11
10
11
9
8
8
7
4
11
22

9
4
12
9
15
13
9
28
22
3-4
6
11
7

11
15
14
19
12
13
7
7
7
8
5
8
14
22

9
5

9
22
13
10
27
22
4-5
7
5
10
7
12
15
20
9
21
12
11
7
5
6
11
5
10
13
20

8
5
14
13
17
23
11
29
23
5-6
8
6
5
6
9
14
6
21
8
8
4
5
5
4
3
7
10
13

7
3
15
12
10
23
8
29
23
6-7
6
7
6
4
5
6
3"
12
5
13
6
7
6
6
4
3
2
6
8
10

8
3
9
8
10
13
6
29
13
7-e
5
6
4
2
3
6
2
11
13
12
5
7
2
4
5
4
2
2
6
5
9

8
3
6
6
5
10
IS
29
13
8-9
3
7
3
3
2
6
2
9
14
11
4
5
5
4
3
2
2
7
8
5

6
3
6
g
4
6
5
29
14
9-10
2
5
4
4
2
4
2
9
10
12
2
5
1
4
4
5
1
4
6
8
6

5
2
5
8
3
3
5
29
12
10-11
2
1?
5
3
2
3
2
8
9
8
2
5
1
1
3
5
1
1 1-12
2
2
14
5
2
1
3
2
6
6
11
1
4
1
2
5
0
2 1
6 4
8 5
5 4

5 4
2 3
5 6
6 6
6 4
3 2
4 4
29 29
12 14

MEAN
3.2
3.8
4.7
6.4
6.1
2.4
4.5
5.7
4.6
7.8
8.4
9.9
4.3
7.0
3.6
3.8
3.1
3.0
5.0
2.2
5.3
NO.
OF
MRS
21
2<
2«
?'
2«
22
21
2<
2<
2<
2«
2<
23
24
24
22
24
24
23
24
21

MAX.
14
16
22
24
18
10
23
26
18
43
43
41
21
26
14
27
16
16
48
14
26
9.2 24, 30
9.8 23 57

5.2 2
-------
to
O5
       CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division ol Ail Pollution. Public Health Service
U. S. Department of Health. Education.and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-11

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED ANALYSIS
    enlCAG3.lLL.
CARBON  MONOXIDE
       NOV.  1968
DAY
MONTH
1
2*
3*
4
5

6
7
8
9«
10«

11
12
13
14
15
16«
17«
18
1 0
20
21
22
23*
24«
25
26
27
9ft
29
30«
MEAN
NO
MAX.

12-1
2
1
6
3
3

5
3
3
5
;

3
3
2
3
9
4
1
2
3
3
2
3
3
2
6
A
i n
3
3
4
29
10

1-2
2
1
3
1
3

3
1
2
3
3

2
1
1
4
7
6
3
1
j
2
2
1
2
2
0
4
3
2
2
t
30
7

2-3
1
0
1
1
3

2
0
i
2
2

2
1
1
2
5
5
3
1
1
1
2
1
i
1
0
2
2
2
2
2
30
8

3-4
1
0
1
1
3

2
1
1
1

2
1
0
2
4
4
2
0

y
0
0
2
4
1
1
1
30
4

4-5
1
0
0
1
4

2
0
i
1

i
i
0
2
6
4
2
0
1
2
1
i
0
0
^
1
1
1
1
30
6
A
5-6
1
0
0
2
6

2
0
3
1
7

2
1
2
3
8
4
2
0
y
2
2
1
i
0
0
4
1
2
1
2
30
8
M
6-7
3
0
0
4
in

9
3
j
3

2
5
5
7
11
5
2
2
3
4
6
l
0
3
7
9
6
2
4
30
11

7-8
5
2
0
17
1 o

13
8
4

7
8
7
14
7
2
4
7
5
9
i
0
7
11
15
fl
2
7
29
19

8-9
4
7
0
9
13

17
9
6

6
10
10
10
17
9
3
5
5
8
0
8
14
12
8
3
7
29
17

9-10
3
4
1
6
9

14
7
g
6

5
9
8
17
10
2
4
4
4
2
0
6
y
6
3
6
28
17

10-11
3
6
2

11
5
8

7
6
7
12
12
3
3
3
5
2
6
7
6
9
6
27
12

1 1-12
6
3
^

9
6
8

7
5
9
14
10
4
4
5
5
14
3
I
6
7
25
14

12-1
9
4
9

10
10
9

7
5
6
11
17
3
4
3
5
11
4
4
7
7
6
8
7
27
17

1-2
7
7
5
12

10
9
7

10
11
7
9
12
19
3
4
5
9
11
8
9
9
5
9
8
30
19

2-3
7
7
12
14
1 L.

11
13
8

14
9
15
14
12
3
7
5
8
10
4
11
9
11
6
8
9
29
15

3-4
8
5
7
15

16
15
10

10
12
9
19
13
4
6
10
12
6
11
9
20
g
10
28
20

4.5
8
15
10
15
1 «*

14
19
8

14
11
10
13
12
5
7
12
17
ll
15
18
8
11
11
28
19
p
5-6
7
12
9
17
i 5

22
18
4

13
9
11
11
11
4
12
8
11
15
6
10
16
20
9
11
28
22
M.
6-7
5
6
7
12

13
13
5

8
7
10
10
9
10
4
7
6
6
14
6
8
9
14
5
10
8
30
14

7-8
3
2
6
9

6
11
6

9
7
6
10
14
10
5
6
4
4
8
4
8
6
7
5
8
6
30
14
	

8-9
3
4
5

9
8
4

6
6
5
9
11
9
4
7
4
3
7
3
11
6
11
6
11
6
30
11

9-10
2
5
4
10

5
7
4

6
5
6
o
13
6
4
10
4
3
5
3
10
6
11
4
9
6
30
13

10-11
4
6
6
5

6
6
7

5
4
5
10
13
6
2
3
3
3
<,
2
8
7
9
6
4
7
5
30
13

11-12
4
5
5
5

4
5
7

5
2
5
11
11
5
2
3
4
3
5
3
7
5
15
4
7
5
30
15

MEAN
3.7
4.6
4.1
7.8
8.4
8.9
7.4
5.1
5.3
4.6
6.3
5.7
5.6
8.2
11.1
8.8
3.0
4.0
4.4
4.0
4.8
7.4
. 1
2.6
6.1
7.5
9.1
5.4
5.0
5.6
5.9
11.1
\O
OF
HRS
2!
24
2«
22
ZH
24
24
24
Z4
23
20
23
24
20
24
24
21
ZH
24
24
22
24
22
24
24
Z4
23
23
697

MAX
16
26
26
35
46
36
32
34
21
22
22
22
43
33
29
15
19
16
15
17
25
14
20
27
41
21
19
24
46
         * Indicates Saturday or Sunday
          Local standard time used
                                                                                                                   TABULATE-   WE5.% SEP.  10.  1969

-------
        CONTINUOUS MR MONITORING PROGRAM
        Ail Quality Section, laboratory of Engineering and Physical Sciences
        Division of Ait Pollution, Public Health Service
        U. S. Department of Health, Education, and Welfare

        Robert A. Tall Sanitary Engineering Center
        Cincinnati. Ohio 45226
                  Table 3-12

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
                  INFRARED  ANALYSIS
    CHlCAGOtlLL.
CARBON  MONOXIDE
       DEC.  1968
DAY
MONTH
l«
3
4
5
6
7«
8«
9
10
11
12
13
1 A*
15«
16
17
IB
19
20
21*
22«
J*
24
95

26
27
28«
?<3*
30
31
MEAN
NO.
MAX.

12-1
5
3
1
4
7
3
3
2
2
3
2
4
2
4
3
2
3

2
5
6
3
3
2
28


1-2
4
3
1
4
3
3
2
2
1
2
1
3
2
4
4
i
2
2

3
4
5
3
2
2
28


2-3
3
2
1
3
4
2
2
1
1
2
1
3
2
3
2
1
1
1

2
4
4
2
1
2
28


3-4
3
2
3
4
2
1
1
1
2
0
3
2
2
2
1
1

2
3
3
|
1
1
28


4-5
3
1
4
3
2
2
1
1
1
3
2
2
1
1

2
2
2
I
1
1
28

A
5-6
3
1
3
3
3
3
1
1
1
4
3
1
1
2
i

2
4
2
i
2
2
28

M.
6-7
7
3
4
4
4
5
2
1
4
8
9
4
3
2
4
I

3
11
2
|
3
27


7-8
11
It
6
4
4
8
3
2
6
10
B
7
4
2
5

4
12
3
it
3
2ft
12

8-9
10
4
7
4
5
8
3
1
6
7
9
6
7
2
7

5
15
6
j
6
4
28
15

9-1O
7
5
7
5
3
7
£
3
2
5
7
8

6
2
6
2

4
7
2
4
3
26


1O-1 1
8
5
B
7
3
9
2
1
5
6
8

7
2
6

3
6
3
4
26
9

1 1-12
6
7
6
9
7
4
8
2
3
4
6
8
4
8
3
7

5
8
6
4
4
4
29


12-1
6
6
5
10
8
3
8
2
3
5
8
8
5
4
7
4
8

5
16
6
3
4
5
28


1-2
8
5
6
12
9
5
8
3
5
4
7
7
5
5
7
6
6

4
22
5
4
5
6
28


2-3
10
S
6
B
10
10
5
9

5
7
8
5
4
5
8

7
33
4
7
5
26


3-4
14
8
6
9
8
10
5
9
3
4
9
9
8
6
5
7

13
21
5
^
6
8
27


4-5
12
10
7
8
9
12
9
10
7
5
13
12
13
7
9
4
6

13
24
7
14
5
9
29

p.
5-6
13
9
6
8
8
9
10
11
6
8
12
9
12
11
7
3
5

7
25
5
9
4
8
29
t5
M.
6-7
11
6
4
7
8
8
5
7
.3
8
6
10
15
7
6
3
4

16
4
5
2
7
29
16

7-8
7
5
4
5
7
10
4
6
2
5
6
6
10
5
6
3
4

17
4
4
2
5
2
-------
ro
CO
       CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division ol Ail Pollution, Public Health Service
U. S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                 Table 3-13

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                          CONCENTRATION IN PPM
                                                                            COLORIMETRIC ANALYSIS
                                                                                     CHICAGO,ILL.
                                                                                     NITRIC OXIDE
                                                                                        JAN.  1968
DAY
OF
MONTH
1
3
4
5
6«
7«
8
9
10
11
12
13»
14*
15
16
17
16
19
20«

21«
22
23
24
25
26
27«
28«
29
30
31
MEAN
NO.
MAX.
A.M.

12-1
.08
.o«


.12
.It
.04


.0!
.02
.0-3
.09
.0!
.1!
.02
.04
.02
.06

.09
.04
.03




.07
.11


.07
20
.15

1-2
.01


.0!
.09
.06
.07

.07
.02
.01
.08
.06
.02
.07
.02
.03
.00
.04

.07
.04
.03

.06

.20
.06
.05


.06
23
.20

2-3
.OE
.02

.06
.07
.05
.07

.06

.01
.06
.04
.01
.07
.01
.02

.04

.08
.04
.01

.05

.14
.06
.03


.05
22
.14

3-4
.OE
.02

.0!
.04
.04
.09

.06

.01
.04
.04
.01
.09
.02
.02

.03

.06
.04
.00

.07

.10
.09
.01


.04
22
.10

4-5
.14
.02

.04
.05
.02
.1C

.01

.01
.02
.02
.01
.11
.02
.02

.03

.06
.03
.01

.03

.08
.04
.00


.04
22
.14

5-6
.10
.02

.04
.07
.02
.11

.08

.01
.02
.01
.03
.14
.03
.03

.07

.07
.01
.02

.02

.08
.03
.00


.04
22
.14

6-7
.09


.06
.08
.02
.19

.12
.06
.04
.04
.01
.07
.23
.05
.06
.03
.10

.06
.04
.07

.07

.10
.03
.07


.07
23
.23

7-8
.OE


.06
.10
.04
.29!

.24
.12
.1C
.07
.02
.10
.24
.13
.11

8-9
.oe


.11
.13
.04
.31

.31
.13
.11
.11
.03
.11
.20
.19
.13
.iq .10
.12) .12
J
.o3
^
.10 .16
.10 .14

.13, .15

.15
.03
.13


.11
23
.29
.16
.05
.15


.13
23
.31

9-10
.04


.1C
.16
.02
.19

.19
.11
.1C
.12
.03
.12
.21
.ie
.13

1O-I 1
.0!
.01

.01
.16
.04
.1!

.1C
.09

.11
.04
.11

.1!
.07
.10 .07
.13 .12
J
'.oi
.10
.14

.13

.26
.05
.20


.12
23
.26
.02

.12



.30
.04
.16


.10
20
.30

1 1-12
.03
.07


.15
.03


.09
.07

.10
.04
.12
.10
.11

.07
.13

.02

.13



.22
.05
.13


.09
18
.22
P.M.

12-1
.0!
.oe


.11
.03


.Of
.oe

.13
.04
.12
.06
.07

.11
.1C

.02

.13

.06

.19
.06
.09


.08
19
.19

1-2
.03
.0!


.10
.0!


.0^
.06
.07
.13
.07
.15
.07
.08
.OE
.08
.10

.04

.12

.07

.23
.12
.16


.09
21
.23

2-3



































3-4
.0«
.01


.01




.1C






















4
.10

4-5
.01
.0<

.01
.OS
.oe
.OE

.13
.11
.13
.1;
.01
.11
.1C
.1C
.1!

.07

.13
.11
.16

.12

.13
.20



.12
22
.20

5-6
.08
.09

.09
.09
.07
.11

.16
.17
.14
.19
.07
.15
.10
.12
.12
.19
.10

.16
.19
.18

.15

.10
.24



.13
23
.24

6-7
.1C


.1C
.oe
.01
.12

.11
.13
.12
.11
.oe
.11
.11
.13
.oe
.16
.07

.09
.12
.16

.12

.10
.20



.11
22
.20

7-8
.1C


.Of
.07
.06
.05

.0?
.1C
.1C
.OE
.01
.1C
.11
.OE
.08
.09
.06

.14
.11
.15



.11
.20



.10
21
.20

8-9
.1]
.0!

.0(
.oJ
.05
.0!

.0<
.1C
.01
.01
.01
.12
.OE
.0!
.07
.01
.07

.17
.09
.14



.OE
.14



.09
22
.17

9-10
.1C
.0<

.12
.oe
.oe
.o<

.OS
.1C
.oe
.oe
.05
.16
.oe
.oe
.OE
.1C
.06

.21
.06
.14



.08
.17



.09
22
.21

IO-1 1
.12
.oe

.11
.07
.0"*
.04

.10
.04
.04
.07
.05
.14
.05
.08
.07
.11
.08

.12
.06

1 1-12
.12
.05

.13
.08
.07
.03

.09
.05
.07
.10
.05
.16
.04
.06
.06
.09
.10

.07
.06
.15



.08
.26



.09
22
.26



.07
.15



.08
21
.16
DAILY
MEAN
.081
.054

.079
.091
.048
.112

.113
.090
.065
.090
.047
.096
.112
.080
.070
.088
.082

.081
,079
.100

,087

.141
.105
,091


.087

.141
NO.
MRS
2:
ie

IE
23
22
11

21
11
11
22
22
22
21
22
2C
17
22

22
18
21

14

21
22
14



480

5-MIN.
MAX.
.15
.12

.14
.17
.14
.35

.37
.21
.16
.21
.11
.21
.30
.20
.16
.21
.15

.25
.22
.22

.21

.33
.29
.22




.37
           Indicates Saturday or Sunday
           Local standard time used
                                                                                                                     TABULATED   WED, * SEP,  10t  1969

-------
        CONTINUOUS MR MONITORING PROGRAM
        Mr Quality Section, laboratory ol Engineering and Physical Sciences
        Division ol Ail Pollution, Public Health Senice
        U. S. Department ol Health, Education, and Welfare

        Robert A. Tail Sanitary Engineering Center
        Cincinnati, Ohio 4522S
                  Table 3-14

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
CHICAGO,ILL.
NITRIC  OXIDE
    FEB.  1968
DAY
MONTH
1
2
3«
4«
5
6
7
8
9
10*
11*
12
13
1*
15
16
17«
18«
19
20
21
22
23
24«
25*
26
27
28
29
MEAN
NO.
MAX.
A.M.
12-1









.17
.20
.10
.11
.0!


.0!
.06
.1C
.12
.11
.11
.1C
.07
.13
.07

.06
.12
.10
17
.20
1-2








.0!
.12
.13
.01
.OS
.04

.1C
.04
.04
.01
.06
.08
.07
.01
.05
.11
.06

.04
.09
.07
19
.13
2-3








.03
.1C
.1C
.0!
.07
.03

.06
.02
.02
.06
.04
.0!
.0!
.0!
.04
.07
.06
.03
.03
.06
.05
20
.10
3-4








.02
.01
.0«
.04
.0!
.03

.06
.02
.02
.06
.04
.OS
.04
.0!
.04
.04
.07
.04
.02
.03
.04
20
.07
4-5








.03
.07
.0!
.04
,0«
.o<

.06
.02
.02
.0«
.03
.06
.0!
.07
.06
.02
.08

.02
.05
.05
19
.08
5-6








.04
.06
.04
.05
.08
.04

.07
.02
.03
.13
.04
.06
.07
.09
.01
.02
.10

.04
.06
.05
19
.13
6-7








.12
.08
.04
.11
.2C
.Of

.1C
.04
.0<
.24
.11
.12
.1C
.14
.02
.03
.21
.13
.09
.11
.11
20
.26
7-8








.24
.n
.0!
.1*
.3{
.16

.1C
• 05
.0:
.41
.21
.16
• IS
.21
.06
.03
.3>
.19
.17
.21
.18
20
.40
8-9








.2(
.1!
.04
.23
.4*
.17

.1!
.07
.0!
.43
.22
.1!
.16
.271
.12
.03
.43
.19
.20
.24
.20
20
.44
9-10








.2C
.21
.04
.2C
.3C
.U

.1C
.06
.04
.27
.2C
.12
.14
.27
.09
.03
.36
.14
.18
.21
.18
20
.38
1O-I 1








.If
.17
.04
.11
.1C
.It

.14
.06
.03

.16
.1C
.OS
.17
.04
.04


.14

.11
16
.19
11-12








.16
.16
.05
.15

.11

.08
.04
.03

.14

.06

.08
.04


.16

13
.16
P.M.
12-1








.13
.13
.0!
.12

.os

.04
.04
.02

.1C
.0!
.0!

• 0
-------
CO
CD
       CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-15

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
CHlCAGOtlLL.
NITRIC  OXIDE
   MARCH 1968
DAY
MONTH
1
2«
3«
4
5

6
7
8
9«
10«
11
12
13
14
15
16«
17«
18
19
20

21
22
23«
24«
25
26
27
28
29
30«
3l«
MEAN
NO.
MAX.

12-1
.OS
.11
.23
.OS
.!<

.OS
.07
.09
.26
.14
.05
.05
.11
.09
.06
.12
.56
.05
.01
.05

.06
.06
.10
.10
.06
.02
.02
.01
.05
.44
.02
.11
31
.56

1-2
.08
.Of
.11
.04
.11

.04
.03
.01
.13
.OS
.02
.03
.0?
.08
.04
.07
.42
.02
.02
.02

.04
.OS
.07
.06
.04
.01
.01
.01
.02
.48
.02
.08
31
.48

2-3
.OB
.04
.14
.0!
.11

.0?
.02
.05
.07
,o<
.02
.01
,06
,05
,04
oO*
0*1
.01
.01
.01

.01
.02|
,oS
.06,
.04
.02
.00
.01
.01
.46
.02
.06
31
.*6

3-4
.Of
.03
,0?
.0<
.1C

.02
.01
.0!
.0!
.0!
oOl
,01
0OS
,04
003
o04
06l
oOl
,01
.01

«00
.01
.03
.04
.04
,00
.00
.02
.02
.41
.01
.06
31
.61

4-5
.01
.0!
.01
.0<
.If

.02
.03
.0!
.03
.03
.Oil
.01
.06
,09
oO«
,o
-------
       CONTINUOUS MR MONITORING PROGRAM
       Ail Quality Section, Laboratory ol Engineering and Physical Sciences
       Division of Aii Pollution, Public Health Sereice
       U. S. Department of Health, Education, and Welfare

       Robert A. Taft Sanitary Engineering Center
       Cincinnati, Ohio 45226
                   Table 3-16

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLOR1METRIC ANALYSIS
CHICAGO,ILL.
NITRIC  OXIDE
   APRIL 1968
DAY
MONTH
1
3
4
5
6«
7«
8
9
10
U
12
14*
15
16
17
18
19
20«
21«
22
23
24
25
26
27«
28«
29
30
MEAN
NO.
MAX.
A.M.
12-1
lie
.02
.oc
.0!
.1!
.04
.02
.01
.04
.02
.oc


.04

.01
(Oe
.18
.02








.04
.05
18
.18
1-2
.oe
.01
.oc
.01
.oe
.02
.02
.oc
.oc
.06
.OC


.02


.94
.10
.02








.01
.03
16
.10
2-3
.oc
.01
.oc
.oc
.02
.oe
.02
.01
.oc
.oc
.02
.oc


• 02


.03
.03
.01








.00
.02
17
.08
3-4
.OC
.04
.OC
.OC
.00
.06
.01
.01
.OC
.OC
.06
.OC


.01


.01
.01
.01








.00
.01
17
.06
4-5
.OC
.0!
.OC
.OC
.01
.0!
.01
.01
.OC
.01
.0!
.00


.00


.01
.01
.00








.02
.01
17
.05
5-6
.02
(06
.01
.00
.01
.0*
.02
.01
.00
.04
.04
.00


.01


.02
.00
.00








.15
.03
17
.15
6-7
.06
• 1C
(0!
.02
.07
.01
.02
• 04
.02
.07
.OE
.02
.02
.02
.04

.02
.11
.01
.01








.31
.06
20
.31
7-e
•U
.11
.OS
.13
.oe
.02
.0!
.04
.19
.12
.0!
.02
.07
.oe

.07
.15
.04
.02








.19
.08
20
.19
8-9
.11
.01
.06
.12
.03
.01
.02
.04
.16
.12
.04
.02
.08
.06

.09
.17
.06
.02








.11
.07
20
.17
9-1O
•Si
.oe
.12
.0!
.08
.02
.01
.02
.02
.11
.06
.02
.02
.05
.04

.07
.14
.05
.01







.05
.09
.06
21
.14
1O-1 1
.OE
.1C
.0!

.OC
.OC
.OC
.OC
.06
.0!
.01
.02
.04
.02


.10
.02
.01







.03
.08
.04
18
.10
1 1-12
.03
.08

.02

.00
.00

.00
.03
.04
.00
.02
.03
.01



.01
.01







.04
.05
.02
16
.08
P.M.
12-1
*13

.02

.OC
.oc
.oc
«0(
.02
.03
.OC
.0!
.01
.00



.01
.01







.03
.06
.02
17
.13
1-2
.01
.12

.02
.03
.OC
.OC
.OC
.oc
.oc
.01
.oc
.11
.02


.07

.02
.02







.01
.09
.03
18
.12
2-3





























3-4


.02

.OC

.01
.01


.01
.03
















6
.03
4-5
.12
.It
.0!
.0!

.OC
.OC
.02
.02
.11
.02
.02
.01
.01
.02

.1!
.24
.01
.oe







.0!
.12
.01
21
.24
5-6
.15
.19
.07
.07
.07
.04
.00
.03
.02
.09
.03
.04
.01
.05
.01

.13
.20
.02
.12







.04
.08
.07
21
.20
6-7
II!
.OE
.1C
.oe
.06
.oc
.0:
.01
.OS
.03
.02
.0!
.04


.OE
.15
.06
.10







.03
.09
.07
20
.15
7-8
.12
.1!
.03
.12
.0!
.OC
.OC
.02
.02
.OS
.0<
.01
.01
.06


.11
.1C
.02
.12







.06
.11
.06
20
.15
8-9
.1!
.12
.01
.1C
.02
.01
.OC
.02

.oe
.02
.01
.01
.0!


.1C
.12
.03
.11







.10
.12
.06
20
.15
9-10
.11
.Ot
.OC
.11
.02
.02
.OC
.02
.0!
.OS
.02
.01
.OC
.06


.11
.12
.04
.12







.OE
.12
.06
20
.13
10-1 1
.OE
,02
.OC
.OF
.01
.OC
.oc
.02
-.0!
.06
.01

.OC
.01


.OS
.16
.02
.16







.08
.13
.06
19
.16
1 1-12
.10
.02
oOO
.07
.04
.02
.01
.02
.05
.04
.00


.05


.07
.18
.02
.14







.08
.10
.06
18
.18

MEAN
.075
.094
.038
.045
.046
.035
.00?
.021
.018
.062
.043
.012
.024
.048
.025

.083
.111
.034
.050







.055
.094
.048
.111
NO.
OF
MRS
2(
22
IS
23
IS
23
2!
2;
2:
22
22
21
16
16
15

14
19
22
22







13
22
411

MAX.
.18
.22
.15
.14
.16
.17
.05
.06
.07
•22
.17
.06
.13
.09
.08

.17
.28
.21
.17







.11
.35
.35
CO
         * Indicates Saturday or Sunday
           Local standard time used
                                                                TABULATED   WEO».  SEP,  I0f  19*9

-------
CO
       CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratoiy ol Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department ol Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                    Table 3-17

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
CHlCAGOttLL.
NITRIC  OXIDE
          1968
DAY
OF
MONTH
1
2
3
4«
5«
6
7
8
9
10
11«
12*
13
14
15
16
17
18*
19*
20

21
22
23
24
25*
26*
27
28
29
30
31
MEAN
NO.
MAX.

12-1
.0'
»1(
.0«
.06
.OS
.03
.03
.00
.02
.04
.11
.12
.04
.01
.06
.01
.01
.19
.05
.05

.10
.17
.07
.04
.16
.17
.01
.04
.04
.05
.19
.07
31
.19

1-2
.02
.05
1 0^
.0!
.04
.01
.02
.OC
.0!
.03
.06
.08
.03
.00
.04
.01
.00
.18
.05
.03

.06
.16
.04
.02
.10
.09
.00
.03
.03
.02
.11
.05
31
.18

2-3
.02
.02
.02
.02
.02
.11
.00
.OC
.OC
.02
.04
.04
.02
,oc
.04
.OC
.00
.12
.05
.01

.05
.12
.03
.00
.05
.04
.00
.02
.03
.02
.09
.03
31
.12

3-4
.02
.02
.01
.01
.01
.12
.00
.OC
.00
.03
.03
.02
.02
.01
.05
.00
.00
.07
.04
.00

.05
.10
.01
.00
.03
.02
.00
.01
.03
.01
.06
.03
31
.12

4-5
.02
.02
.01
.OC
.01
.11
.OC
.01
.00
.05
.01
.01
.01
.01
.06
.00
.01
.08
.03
.02

.06
.10
.01
.00
.02
.00
.01
.01
.02
.00
.05
.02
31
.11
A
5-6
.07
.14
.06
.01
.01
.26
.02
.05
.03
.08
.03
.01
.06
.02
.11
.01
.08
.10
.03
.09

.18
.16
.09
.05
.04
.00
.05
.06
.08
.02
.09
.07
31
.26
.M.
6-7
.!<
.22
.14
.0!
.01
.26
.05
.08
.06
.14
.0!
.01
.08
.05
.20
.03
.12
.10
.03
.23

.26
.19
.17
.13
.08
.01
.09
.12
.14
.02
.21
.11
31
.26

7-8
.14
.11
.18
.01
.01
.21
.07
.07
.07
.12
.09
.01
.10
.12
.20
.05
. 14
.06
.04


.15
.21
.18
.16
.11
.02
.08
.14
.16
.03
.15
.11
31
.21

8-9
• 1 *
.12
.16
.OC
.01
.14
.01
.0!
.01
.06
.09
.02
.05
.10
.01
.05
.06
.05
.03


.07
.19
.17
.12
.14
.01
.11
.12
.14
.02
.03
.09
31
.19

9-10
.0"
.0*
.12
.0!
.02
.12
.04
.02
.06
.04
.1C
.02

.09
.04
.05
.05
.04
.05
.17

.06
.08
.15
.09
.13
.03
.10
.09
.08
.01
.00
.07
30
.17

10-1 1

.06
• Ot
.02
.02
.14
.03
.03

.04
.1C
.01

.06
.03

.05
.03
.04
.15

.07
.05
.14
.09
.13
.03
.07
.07
.09
.01

.06
26
.15

1 1-12

.03
.10
.03
.03
.14
.03
.02

.04
.09
.02

.05
.04

.08
.01
.03
.09

.10

.12
.08
.14
.05
.06
.09
.07
.02

.06
25
.14

12-1

.0;
.Oi
.04
.04

.03
.02
.04
.0!
.01
.01

.04
.04

.06
.02
.07
.08

.06

.14
.07
.15
.11
.07
.09
.13
.03
.02
.06
26
.15

1-2

.02
.Oi
.Oi
.04
.06
.04
.02
.06
.07
.01
.04

.05
.0-3
.05
.10
.02
.07
.07

.09
.05
.17
.10
.15
.10
.05

.15
.04
.03
.07
28
.17

2-3

.02































1
.03

3-4





















.10











1
.10

4-5


.1!
.1]
.06
.12
.04
.0!
.06
.Of
.08
.05
.1C
.03
.07
.06
.05
.04
.10
.13

.09
.OS
.17
.2!
.18
.09
.06
.12
.12
.04
.06
.09
29
.25
p
5-6


.17
.10
.08
.14
.02
.03
.07
.08
.07
.10
.04
.02
.06
.05
.05
.04
.12
.12

.07
.05
.16
.17
.16
.08
.09
.14
.11
.05
.02
.08
29
.17
M.
6-7
.12

.IS
.Oi
.12
.12

.02
.05
.06
.0!
.16
.07
.03
.04
;04
.03
.07
.10


.05
.05
.13
.16
.12
.04
.12
.13
.07
.05
.00
.08
29
.IS

7-8

. 1 •
,2t
.Oi
.12
.14

.04
.01
.11
.0<

'.ol.
.06
.04
.04
.05
.08
.11


.11
.07
.12
.18
.1C
.02
.09
.12
.08
.07
.OC
.OS
30
.20

8-9
.1!

.li
. Ot
.0^
.14
.OC
.OS
.05
.OS
.0*
.16
.02
.06
.04
.04
.1C
.08
.13


.09
.06
.14
.23
.10
.05
.07
.07
.11
.08
.05
.OS
31
.23

9-10
.12
.1C
.12
.OS
.14
.12
.01
.OC
.06
.OS
.04
.13
.04
.0!
.03
.03
.11
.03
.18


.15
.0<3
.12
.24
.13
.08
.06
.10
.14
.11
.13
.1C
31
.24

10-11
.li
.12
.16
.12
.12
.12
.01
.0!

!l5
.01
.01
.01
.06
.01
.02
.12
.05
.11


.19
.15
.OS
.IS
.18
.06
.06
.08
.12
.21
.OS
.1C
31
.21

1 1-12
.13
.09
.12
.15
.05
.07
.02
.03
.06
.15
.13
.05
.01
.07
.02
.04
.15
.07
.09


.25
.14
.09
.14
.18
.03
.05
.06
.08
.27
.05
.10
31
.27
DAILY
MEAN
.095
.088
.108
.064
.051
.132
.026
.033
.046
.073
.066
.057
.044
.044
.061
.031
.066
.068
.069
.112
• 1 * t
.106
.114
.114
.114
.116
.051
.058
.080
.091
.052
.070
.074

.132
NO.
OF
MRS.
U
2C
2!
22
22
21
2C
22
2C
22
22
22
11
22
22
IS
22
22
22
22

23
20
22
22
22
22
22
21
22
22
2C

651

5-MIN.
MAX.
.19
.28
.24
.18
.16
.37
.08
.11
.09
.18
.15
.23
.13
.16
.26
.07
.19
.21
.22
.29

.29
.30
.20
.29
.21
.20
.14
.17
.18
.28
.25


.37
         * Indicates Saturday or Sunday
          Local standard time used
                                                                                                                      TABULATED   WED, *  SEP,  10% 1969

-------
        CONTINUOUS MR MONITORING PROGMM
        Ait Quality Section, Laboratory of Engineering and Physical Sciences
        Division ol Air Pollution, Public Health Service
        U. S. Department ol Health, Education, and Welfare

        Robert A. Taft Sanitary Engineering Center
        Cincinnati, Ohio 45226
                   Table 3-18

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLOR1METRIC ANALYSIS
CHICAGO,ILL.

NITRIC  OXIDE
    JUNE  1968
DAY
MONTH
i«
2*
3
4
5
6
7
8«
9«
10
11'
12
13
14
15«
16*
17
18
19
20
21
22«
23*
24
25
26
27
28
29*
30«
MEAN
NO.
MAX.
A.M.
12-1
0^
• 0*

.06
.OS
.04
.02
.12
.02
.03
.01

,04
.oc
.09
.01
.03
.02
.06
.04
.01
.05
.1C
.02
.04
.04
.04
.03
.02
.02
.04
28
.12
1-2
.04
.03

.03
.03
.02
.02
.09
.1C
.01
.01
.OC
.01


.05
.01
.01
.05
.04
.01
.04
.08
.01
.02
.03
.03
.02
.02
.01
.03
27
.10
2-3
.01
.01

.01
.02
.01
.01
.06
.11
.01
.01
.OC
.oe

.03
.02

.01
.05
.05

.02
.0!
.01
.01
.02
.01
.02
.01
.01
.02
26
.11
3-4
.OC
.OC

.03
.01
.01
.02
.04
.09
.00
.01
.OC
.OC

.02
.01
.OC
.01
.04
.10

.01
.04
.03
.01
.01
.02
.02
.02
.01
.02
27
.10
4-5
.OC
.OC

.02
.03
.02
.03
.03
.06
.00
.OC
.OC
.OC

.03
.OC
.0]
.02
.05
.14

.01
.03
.0!
.02
.01
.02
.02
.02
.01
.02
27
.1*
5-6
.00
.00

.05
.09
.05
.05
.05
.05
.04
.01
.02
.05
.02
.04
.00
.06
.05
.08
.17
.05
.03
.03
.08
.05
.03
.04
.05
.02
.01
.04
29
.17
6-7
.01
.OC

.09
.01
.1C
.09
.08
.04
.08
• .08
.03
.05
.05
.03
.01
.07
.06
.11
.06
.01
.03
.06
.11
.12
.04
.05^
.07
.02
.01
.06
29
.12
7-8
.02
.OC

.06
.04
.11
.09
.1C
.02
.06
.1C
.05
.05
.08
.OS
.01
.08
.1C
.1C
.01
.09
.03
.03
.07
.19
.05
.07
.07
.03
.01
.06
29
.19
8-9
.02
.OC

.04
.01
.06
.04
.01
.01
.04
.05

.05
.05
.04
.01
.05
.12
.061
.05
.01
.02
.02
.06
.19
.07
.06
.05
.04
.01
.05
28
.19
9-10
.04
.OC

.02
.01
.03
.02
.03
.01
.02
.03

.04

.06
.02
.04
.12
.05
.02

.02
.01

.15
.08
.05
.03
.04
.01
.04
25
.15
1O-1 1
.01
.OC

.02
.01
.02
.01
.02
.OC
.01

.06
.02
.01
.06
.02
.04
.11
.06
.01

.02
.OC

.11
.04
.05

.07
.01
.03
25
.11
1 1-12
.02


.03
.00
.01
.02
.02
.00
.01
.01
.08
.02
.00
.06
.04
.03
.07
.03
.02

.03


.10
.04
.04

.08
.01
.03
24
.10
P.M.
12-1
.0;
.oc

.02
.oc

.oc
.01
.oc
.03
.01
.01

.oc
.06
.04
.02
.04
.03
.04
.OC
.03

.04
.09
.04
.05

.05
.01
.03
25
.09
1-2
.01
.oc

.03
.03


.01
.OC
.02

.08

.02
.05
.03
.04
.03
.03
.05

.02

.05
.11
.04
.05

.031
.01
.03
22
.11
2-3































3-4








.01



.08

.08
.05






.OC






.01
6
.08
4-5



.01
.02
• 03
.01
.0!
.01
.01

.01
.1C
.03
.oe
• 0'.
.oc
.04
.05
.01
.O1
.04
.03
.1C
.10
.04
.01
.0!
.031
.01
.05
26
.10
5-6



.05
.02
.02
.01
.05
.02
.01
.01
.06
.07
.06
.06
.06
.06
.08
.03
.07
.02
.04
.07
.10
.09
.05
.08
.03
.01
.01
.04
27
.10
• 6-7

.05

.OE
.01
.09
.02
.04
.04
.01
.01
.05
.08
.01
.05
.01
.05
.08

.01
.02
.0!
.06
.08
.01
.0<
.01
.03
.02
.02
.05
28
.09
7-8

.06

.05
.01
.04
.0?

.05
.04
.01
.04
.05
.08
.05
.06
.06
.1C
.06
.1C
.05
.06
.06
.08
.01
.0*
.06
.04
.03
.02
.05
28
.1C
8-9
.0;


.OS
.OJ
.0*
.0'
.06
.06
.OE

.05
.03

.05
.06
.0'
.oe
.06
.01
.06
.0!
.1C
.06
.06
.05
.06
.OS
.06
.03
.06
26
.10
9-10
.0*


.02
.03
• 0^
.03
.06
.01
.1C

.01
.04
.06
.05
.01
.1C
.01
.01
.04
.06
.06
.11
.1C
.09
.0<
.05
.03
.05
.03
.06
27
.11
10-1 1
.Of


.0!

.04
.01
.01
.-1C
.06

.01
.04
.Of
.11
.OF
.01
.01
.01
.05
.OF
.Of
.0*
.01
.01
.05
.05

.03.
.04
.06
27
.11
1 1-12
.09


.09
.05
.04
.04
.07
.07
.04

.04
.02

.11
.06
.02
.09
.06
.03
.07
.06
.03
.07
.07
.05
.04
.04
.03
.02
.05
26
.11

MEAN
.029
.013

.045
.030
.041
.031
.053
.040
.032
.024
.044
.039
,04Z
.057
.040
.046
.062
.056
.063
.045
.036
.048
.062
.OR3
.040
.049
.039
.033
.015
.043
.083
NO,
OF
MRS
IE
1!

2 1
22
2l:
21
22
23
22
I*.
11
21
1!
22
23
21
22
22
22
15
22
2C
19
22
22
22
IB
22
23
592

MAX.
.12
.07

.14
.11
.13
.11
.15
.12
.14
.12
.12
.11
.11
.17
.11
.13
.15
.13
.21
.12
.09
.13
.14
.21
.10
.10
.08
.10
.05
.21
CO
CO
           * Indicates Saturday or Sunday
            Local standard time used
                                                               TABULATED   WED.« SEP.  10»  1969

-------
CO
       CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory ol Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department ol Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                   Table 3-19

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
CHICAGO,ILL.
NITRIC  OXIDE
    JULY 1968
DAY
MONTH
1
2
3
4
5
6«
7«
8
9
10
11
12
13«
14*
15
16
17
18
19
20«
21*
22
23
2*
25
26
27«
28«
29
30
31
MEAN
NO.
MAX.
A.M.
12-1
•?A
.02
.o<


.02^
.12
.03
.01
.05
.03
.0!
.02
.02
.01
.02
.01
.01
.03
.02
.04
.01
.01
.03
.03
.04
.08
.06
.10
.06
.00
.03
29
.12
1-2
.01
.01
.06


.01
,0{
.03
.OC
.01
.03
.041
.03
.01
.02
.02]
.01
.01
.02
.01
.04
.01
.01
.041
.02
.03
.05
.06
.09
.05
.00
.03
29
.09
2-3
.01
.01
.o<


.01
.0!
.02
.OC
.01
.03
.02
.03
•°1
.02
.02
.00
.01
.01
.01
.05
.02
.OC
.04
.01
.02
.04
.04
.07
.03
.00
.02
29
.07
3-4
.01
.01
.03

.03
.01
.03
.02
.OC
.01
.03
.02
.02
.01
.01
.02;
.01
.01
.01
.01
.05
.01
.00
,01
.01
002
.02,
.03
.06
.00
.00
.02
30
.06
4-5
.02
.01
.03

.03
.01
.02
.03
.01
.02
.03
5-6
.05
.04
.08

.03
.02
.02
.04
.03
.05
.08
.03 .06
.03
.01
.02
.03
.01
.01
.02
.02
.03
.01
.01
.03
.01
.02
.03
.01
.03
.04
.02
.02
.04
.03
.02
.03
.04
.11
.05
o09
..02j .02
.02 .01
.08
.01
too
.02
30
.08
.14
.03
.01
.04
30
.14
6-7
.06
.0!
.11

.03
.02
.02
.06
.0!
.OE
.11
.12
.031
.01
.04
.06
.03
.03
.07
.02
.02
.07
.07
7-8
.01
.Of
.12

.03
.02
.03
.0<
.06
.11
.0^
.12j
.04
.01
.05
.06
.02
.04
8-9
.06
.0<
.12

.02
.02
.02
.01
.01
.06
.07
.12
.05
•°2
.04
.06
.02

.OBJ
.02 .02
.01 .01
.07 .05
.06 ,03
.14 .15 .11
.10
.12
.041
.02
.25
.12
.03
.07
30
.25
.11 .07
.oj .05
.05 .05
.02 .03
.241 .18
.13
.06
.07
30
.24
.06
.05
.06
28
.18
9-10
.0«
.0<
.Of

.02
.02
.01
.06
.0!
.06
.06
.06
.04
.01
.03
.04
.01
003
.041
.01
.01
.oi

.06
.05
.04
.031
.03

.03
.04
.04
28
.08
10-11

.0!
.01

.02
.02
.01
.0<
.02
.01
.0!
.02
.01
.oi
.02
.02
.OC
.03
.041
.01
.01
.03
.Oil
.07
.06
.03
.02
.03

.00
.04
.03
28
.07
1 1-12
.04
.04
.04

.02
.01
.01
.03
.01
.07
.05
.02
.01
.01
.01

.00
.02
.04
.01
.01
.03
.02
.03
.04
o03
.04
.03

.03
.02
.03
28
.07
P.M.
12-1
.0*
.0(
.o<

.01
.01
.01
.02
.02
.01
.o<
.01
.01
.OC
.01
.02
.OC
.02]
.04
.01
,01
.03
.03
,04
.06
,04
.07
.05

.00
.03
.03
29
.07
1-2
.0:
.Of
.0!

.01
.02
.01
.01
• Of
.06
.03
.01
.01
.OC
.01
.01

.02
.04
.01
.01
.02
.01
.03

.04
.07
.05
.0!
.01
.03
.03
28
.08
2-3







.02
























1
.02
3-4
.02





.01
.01
.OE
.06
.0?
.02
.01
.oi
.01
.01
.01
.03
.02
.02
,00
.03
.02
.05
.07
.05
.05
.05

.01
.07
.03
25
.08
4-5
.0;
.1C


.02
.Oi
.02
.02
.1C
.06
,0<
.02
.01
.01
.01
.01
.01
.02
.02
.03
.01
.03
.05
.04
.08
.06
.06
.05
.01
.01
.04
.04
29
.10
5-6
.01
.09


.02
.04
.02
.01
.07
.06
.04
.02
.01
.01
.01
.01
.01
.02
.02
.04
.01
.02
.08
.05
.07
.06
.06
.07
.06
.00
.05
.04
29
.09
6-7
.O;
.OJ


.02
.0-
.02
.01
.0!
.05
.0<
.03
.01
.01
.01
.01
.01
.03
.02\
.03
.01
.04
.03
.05^
.07
,06.
.06
.0^
.04
.00
.04
.03
29
.08
7-8
.02
.OC


.0:
.04
.01
.01
.0!
.06
.n<
.03
.02
.02
.02
.01
.01
.04
.02
.03
.01
.03
.05
8-9
.0-
.Of


.02
.04
.03
.03
.06
.OC
.0"
.03
.03
.02
.02
.01
.01
.04
.02
.03
.02
9-1O
.0:
.01


.02
.0<
.0'
.03
.01
.01
.06
.04
.03
.02
.03
.01
.02
,o3
.03
.03
.02
10-1 1
.0'
.Of


.02
.Of
. .0-
.01
.-01
.Of
.OF
.04
.03
.02
.02
.01
.02
.04
1 1-12
.04
.06


.02
.10
.04
.01
.05
.06
.07
.03
.02
.02
.02
.01
.01
.05
.04 .03
.021 .01
.02J .02
.02 .04J ,05J .04
.04 .06J .071 .07
.04| .06, .07i .06' .05
.06
.0'6
.OE
.08
.03
.00
.05
.04
29
.08
.OS
old
.0^ .08 .06
.OT| .07 .11
.10 ol^ .10 .08
.111 .13
.02 .03
.01
.06
.04
29
.11
.00
.09
.05
29
.13
.13 .11
.03 .05
.00 .00
.12
• 10.
.05 .05
29
.13
29
.11

MEAN
.030
.052
.065

.023
.029
.027
.027
.042
.055
.050
.041
.022
.012
.020
.023
.010
.026
.031
.020
.019
.031
.038
NO.
OF
MRS
??
21
U

1?
2?
23
24
21
2!
?'
2-
2]
23
23
22
22
2?
22
23
23
23

MAX.
.08
.12
.14

.04
.12
.12
.08
.12
.13
.12
.14
.06
.03
.06
.07
.03
.06
.10
.04
.06
.08
22! .10
.058 23 .17
.059
.056
,055
.054
.089
.025
.040
.037

.089
22
23
23
23
18
23
23

664

.14
.14
.14
.14
.27
.15
.12


.27
         * Indicates Saturday or Sunday
           Local standard time used
                                                                                                                      ABULATED   WED..  SEP.  10»  1969

-------
         CONTINUOUS MR HONITOIHN6 KOGMM
         Air Quality Section, Liberator} of Enjineering and Physical Sciences
         Division of Air Pollution, Public Health Senice
         U.S. Department ol Health, Education, and Welfare

         Robert A. Taft Sanitary Enginterint Center
         Cincinnati, Ohio 45226
                   Table 3-20

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
CHICAGO,ILL.
NITRIC  OXIDE
    AUG.  1968
DAY
OF
MONTH
1
2
3«
4«
9
6
7
8
9
10*
U«
12
13
14
19
16
17«
18*
19
20
21
22
23
24*
29«
26
27
28
29
30
31«
MEAN
NO.
MAX.
A.M.
12-1
•9S
.1C
.04
.11
.04
.0!
.0!
.01
.06
.03
.06
.0!
.01
.06
.05
.03
.04
.0!
.01
.01
.03
.01
.04
.02
.03
.06
.04
.09
.20
.1*
.04
.09
31
.20
1-2
.0!
.1!
.01
.01
.02
.06
.01
.02
.06
• 02
.06
.0!
.01
.01
.02
.62
.02
.04
.01
.01
.04
.02
.04
.01
.02
.04
.03
.07
.09
.05
.06
.04
31
.19
2-3
.03
.K
.01
.Of
.01
.06
.01
.01
.04
.02
.Of
.04
.01
.03
.02
.02
.02
.02
.01
.02
.09
.01
.09
.01
.01
.02
.07
.1*
.06
.02
.03
.04
31
.18
3-4
.0!
.!(
.Of
.0!
.01
.0!
.01
.01
.03
.01
.06
.0!
.01
.02
.01
.02
.02
.01
.00
.04
.04
.01
.07
.01
.01
.02
.08
.21
.04
.09
.04
.04
31
.21
4-5
.01
• 1C
.06
.0!
.01
.0!
.01
.01
.04
.01
.03
.06
.02
.02
.02
.0!
.02
.01
.01
.01
.03
.01
.07
.02
.01
.04
.03
.23
.0!
.03
.03
.04
31
.29
5-6
.06
.12
.06
.09
.06
.06
.03
.08
.11
.01
.04
.10
.02
.09
.07
.09
.03
.01
.02
.03
.09
.09
.09
.03
.02
.14
.10
.35
.20
.07
.08
.07
31
.33
6-7
.Of
.1;
.Of

.01
.1C
.11
.1!
.11
.03
.0!
.19
.03
.01
.09
.oV
.04
.02
.04
.07
.14
.09
.16
.03
.03
.14
.19
.30
.2!
.09
.09
.11
30
.90
7-8
.1C
.14
.13
.06
.1C
.11
.11
.11
.!«
.03
.0!
.12
.04
.07
.10
.07
.04
.02
.04
.06
.1*
.11
.13
.03
.02
.14
.17
.22
.18
.14
.09
.10
31
.22
8-9
.09
.1C
.09
.03
.06

.01
.0!
.01
.03
.03
.09
.02
.0!
.01
.01
.04
.02
.02
.04
.07
.06
.08
.03
.02
.12
.12
.09
.1*
.12
.07
.07
30
.14
9-1O
.01
.01
.01
.03


.!(
.0!
.02
.04
.02

.01
.06
.09
.04
.03
.02
.02
.02
.04
.02
.10
.02
.03
.08
.08
.06
.09
.07
.03
.05
28
.10
10-11

.03
.04
.02


.06
.04
.0!
.04
.02

.OC
.09
.04
.Of
.02
.02
.02
.01
.03
.03
.07
.02
.04
.09
.07
.05
.08
.04
.06
.04
27
.09
1 1-12

.02
.04
.01


.04
.02
.02
.04
.02

.00
.04
.04
.02
.03
.02
.02
.00
.02
.02
.04
.02
.04
.08
.05
.05
.07
.02
.04
.03
27
.08
P.M.
12-1
.Of
.02
.02
.01


.02
.03
.01
.04
.02

.01
.04
.02
.0]
.02
.02
.02
.00
.01
.01
.02
.01
.05
.08
.04
.03
.03
.03
.04
.03
28
.08
1-2
.01
.01
.03
.01


.02
.1C
.01
.03
.02

.03
.04
.02
.01
.02
.01
.02
.01
.01
.01
.02
.01
.09
.06
.12
.04
.04
.04
.06
.03
28
.12
' 2-3


































3-4
.01
.02
.Of
.02











.01
.03
.04
.04

.02
.03
.03
.01
.12
.07
.08
.09
.08

.04
.09
18
.12
4-5
.01
.02
.Of
.02
.02
.OC
.0!
.02
.01
• 0<
.Of
.02
.01
.0!
.06
.0]
.04
• Of
.02
.01
.02
.04
.03
.01
.11
.OC
.09
.08
.06
.1C
.0!
.04
31
.11
5-6
.08
.02
.06
.03
.03
.00
.04
.06
.01
.04
.08
.01
.01
.05
.07
.03
.04
.03
.02
.01
.02
.02
.02
.02
.12
.09
.08
.09
.07
.09
.06
.04
31
.12
6-7
.Of
.02
.02
.02
.02
.OC
.03
.OS
.01
.04
.0!
.01
.01
.0!
.06
.06
.03
.04
.02
.00
.03
.09
.02
.02
.12
.07
.07
.08
.08
.09
.09
.04
31
.12
7-8
.1C
.04
.04
.02
.02
.01
.04
.0?
.01
.04
.0!
.02
.02
.05
.0<
.0!
.03
.05
.02
.01
.04
.03
.04
.03
.12
,oi
.08
.09
.07
.07
.07
.05
31
.13
8-9
.1C
.01
.0!
.0!
.04
.04
.Of
.OS
.02
.04
.Of
• 02
.02
.Of
.06
.04
.04
.04
.01
.02
.06
.02
.06
.03
.13
.0{
.1C
.OE
.08
.13
.04
.05
31
.13
9-10
.1C
.0!
.01
.01
.0!
.02
.01
.Of
.02
.06
.04
.01
.01
.06
.04
.04
.05
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.02
.05
.06
.03
.05
.04
.12
.07
.12
.11
.08
.14
.04
.06
31
.14
IO-1 1
.0!
.04
.1!
.11
.0!
.05
.Of
.OS
;03
.08
.02
.01
.01
.1C
.03
.06
.06
.01
.04
.Of
.05
.04
.06
.04
.11
.07
.11
.15
.12
.13
.04
.07
31
.15
1 1-12
.05
.06
.14
.06
.05
.08
.06
.07
.03
.07
.07
.00
.05
.07
.03
.05
.06
.03
.02
.04
.02
.04
.04
.04
.08
.06
.08
.18
.15
.07
.04
.06
31
.18
DAILY
MEAN
.066
.071
.066
.043
.040
.047
.048
.057
.045
.035
.046
.046
.022
.051
.047
.038
.033
.032
.020
.023
.045
.033
.057
.021
.061
.075
.087
.132
.099
.078
.051
.052

.132
NO.
OF
MRS.
21
2!
2!
22
11
It
21
z:
22
22
22
11
22
22
22
25
23
23
22
22
23
23
23
2!
23
23
23
23
23
22
23

681

S-MIN.
MAX.
.14
.19
.18
.13
.12
.11
.22
.16
.19
.09
.09
.16
.09
.12
.12
.13
.07
.09
.05
.10
.16
.13
.19
.06
.16
.20
.21
.56
.39
.21
.12


.56
CO
en
           * Indicates Saturday or Sunday
             Local standard time used
                                                               TABULATED   WED..  SEP.  10,  1969

-------
CO
       CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division ol Air Pollution, Public Health Service
U. S. Department ot Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                   Table 3-21

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                         CONCENTRATION IN PPM
                                                                           COLOR1METRIC ANALYSIS
                                                                                    CHICAGO.ILL.

                                                                                    NITRIC OXIDE
                                                                                       SEPT.  1968
DAY
MONTH
J*
3
4
5
6
7«
8«
9
10
U
12
13
14«
15«
16
17
18
19
20
21*
22«
23
24
25
26
27
28«
29*
30
MEAN
NO.
MAX.
A.M.
12-1
.03
to«
.03
.02
.01
.OA
.1!
.o<
.01
.03
.02
.1*
.H
.04
.06
.01
.oe
.03
.03
.05
.08
.07
.09
.03,
.05
.17
.16
.09
.33
.07
.07
30
.33
1-2
.03
.03
.02
.01
.01
.02
.11
.02
.OC
.03
.01
.09
.21
.03
.07
.01
.01
.01
.01
.04
.06
.04
.05
.02
.03
.13
.13
.07
.25
.06
.05
30
.25
2-3
.02
.02
.0!
.01
.01
.01
.OE
.02
.01
.03
.01
.07
.24
.02
.05
.01
.01
.02
.01
.03
.0!
.03
.04
.02
.03
.08,
.08
.05
.14
.05
.04
30
.24
3-4
.01
.02
.02
.01
.01
.0!
.1C
.01
.01
.01
.01
.07
.22
.02
.03
.01
.01
.01
.01
.05
.04
.02
.04
.02
.02
.09
.06
.04
.23
.05
.04
30
.23
4-5
.01
.02
.05
.02
.02
.03
.16
.01
.02
.0!
.02
.07
.1C
.04
.03
.01
.01
.01
.02
.10
.06
.03
.09
.02
.02
.06
.08
.02<
.20
.07
.05
30
.20
5-6
.02
.03
.09
.06
.06
.08
.21
.03
.04
.09
.10
.10
.22
.07
.03
.05
.02
.03
.04
.19
.11
.02
.18
.03
.05
.13
.13
.05
.13
.11
.08
30
.22
6-7
.02
.0!
.l<
.OC
.12
.12
,3C
.03
.Ot
.17
.2C
.29
.24
.1C
.04
.06
.04
.oe
.1C
.27
.17
.03
.22
.08!
.16
.321
.19
.22
.11
.22
.14
30
.32
7-8
.02
.0!
.U
.11
.19
.13
.12
.02
.1C
.24
.24
.34
• 1C
.11
.06
.08
.05
.12
.11
.30
.16
.0«
8-9
.02
.0<
.1C
.0(
.It
.11
.Ot
.02
.12
.19
.17
.U
.n
.1C
.04
.07
.04
.13
.OC
.24
.15
.OS
.22 ,2C
.13 .16
.20
.40
.19
.22
.11
.25
.15
30
.40
.11
.27
.15
.10
.10
.16
.12
30
.27
9-10
•2 =
.02
.11
.02
.14
.1C
.0!
.01
.Ot
.16
.13
.OS
.oe
.07
.05
.06
.04
.07
.061
.16
.14
.09

.06
.06
.11
.10
.07
.05
.10
.06
29
.16
IO-1 1
•2i
.02
.1C
.0]
.1C
.02
.0<
.01
.OC
.14
.11
.01
.03
.04
.02
.04
.04
• 1C
.03
.12
.14
.09

.oe
.05
.09
.06
.06
.0!

.06
28
.14
1 1-12
.05
.02
.07
.01
.08
.02
.03
.01
.06
.07
.08
.07
.02
.02
.03
.05
.04
.06
.05
.07
.11
.09

.12
.05
.07
.06
.06
.03
• 06
.05
29
.12
P.M.
12-1
•2;
.0]
.01
.02
.07
.02
.02
.01
.0!
.01
.01
.01
.01
.02
.04
.02
.03
.OE
.0!
.04
.06
.07
.0;
.09
.04
.06
.06
.0!
.02
.05
.04
30
.09
1-2
.02
.01
.01
.02
.01
.02
.02
.01
.0!
.12
.0^
.oe
.02
.01
.06
.03
.03
.12
.05
.06
.01
.oe
.04
.06
.04
.06
.10
.06
.02
.04
.05
30
.12
2-3






























3-4
.02
.01



,0<
.01
.01



.03

.11






.11








8
.11
4-5
.04
.02
.01
.Ot
.1C
.06
.0!
.02
.Ot
.14
.Ot
.oe
.0!
.02
.08
.02
.06
.Ot
.Ot
.05
.07
.13
.01
.0!
.06
.1C
.1!
.07
.06
.04
.06
30
.15
5-6
.05
.07
.01
.03
.08
.05
.05
.02
.06
.12
.12
.07
.09
.02
.06
.02
.06
.06
.10
.05
.05
.09
.08
.05
.05
.11
.12
.09
.07
.04
.06
30
.12
6-7
.06
.01
.01
.02
.05
.Of
.0<
.0<
.Oe
.11
.OS
.oe
.it
.oe
.03
.01
.04
.04
.ot
.05
.1C
.11
•°3
.oi
.07
.06
.1C
.07
.OS
.07
.07
30
.16
7-8
.01
.0(
.02
.02
.06
.12
.0!
.0<
.Oe
.11
.1C
.14
.2!
.IE
.02
.01
.04
.04
.1C
.01
.Ot
.1C
.06
.OE
.06
.04
.oe
.oe
.0;
.07
.oe
30
.25
8-9
.06
.Of
.02
.0!
.01
.1!
.06
.04
.OC
.OS
.OE
.2C
.2C
.1C
.02
.01
.03
.04
.Oil
.09
.1?
.OS
.06
.091
.10
.06
.1C
.OS
.OS
.08
.Ot
30
.20
9-10
.oe
.09
.0;
.o<
.OS
.16
.01
.02
.oe
.1C
.11
.IE
.14
.01
.03
.01
.04
.0!
.06
.07
.11
.06
.06
.Ot
.12
.14
.1C
.1C
.11
.07
.08
30
.IE
1O-I 1
.01
.08
.0'
.04
.OS
.2C
.06
.02
;o-
.1C
.IE
.2!
.1C
.OS
.04
.01
.04
.0!
11-12
.07
.06
.02
.03
.08
.18
.06
.01
.04
.07
.21
.21
.0*
.14
.04
.01
.03
.04
.09J .10
.09. .07
.08 .09
.10 .15
.05 .03
.06 .06
.101 .19
.19 .19
.111 .11
.26J .27
.10 .11
.06
.OS
30
.26
.06
.09
30
.27

MEAN
.038
.039
.048
.034
.075
.079
.084
.021
.052
.101
.101
.131
.134
.061
.045
.029
.032
.058
.061
.102
.090
.073
.089
.068
.074
.131
.109
.098
.113
.083
.075
.134
NO.'
OF
HRS.
2!
2'
?'
22
22
72
22
23
23
22
22
22
23
22
23
2?
22
27
2?
22
27
23
IS
22
22
22
27
22
22
21
664

MAX.
.09
.12
.18
.12
.24
.24
.37
.05
.16
.28
.25
.42
.35
.21
.14
.11
.08
.19
.15
.34
.19
.17
.28
.20
.26
.44
.22
.33
.35
.27
.44
          Indicates Saturday or Sunday
          Local standard time used
                                                                                                                     TABULATED   WED..  SEP.  10,  1969

-------
      CONTINUOUS MR MONITORING PROGRAM
      Ail Quality Section, Laboratory of Engineering and Physical Sciences
      Division of Air Pollution, Public Health Service
      U. S. Department of Health. Education, and Welfare

      Robert A. Tail Sanitary Engineering Center
      Cincinnati, Ohio 45226
                   Table ,3-22
           HOURLY.AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
CHICAGO.ILL.
NITRIC  OXIDE
    OCT.  1968
DAY
OF
MONTH
1
2
3
4
5«
6«
7
8
9
10
11
12*
13*
14
15
16
17
18
19*
20*
21
22
23
24
25
26*
27*
28
29
30
31
MEAN
NO.
MAX.
A.M.
12-1
,05
.01
.02
.03
.39
.01
.02
.04
.02
.02
,2C
,10
,06
,04
.01
.01
.00
.01
.04
.06
.14
.00
.03
.04
.05
.06
.04
.02
.05
.07
.08
.06
31
.39
t-2
.03
.01
.01
.02
.32
,03
.01
.03
.02
.02
.1C
.08
.09
.02
.00
.01
.00
,00
.03
• 04
.13
.00
.02
.04
.03
.05
.03
.01
,03
.03
.06
.04
31
.32
2-3
•21
.02
.01
.01
.11
.02
.01
.02
.02
.01
.01
.05
.10
.01

.oc
.00
.00
.01
.02
.09
.01
.01
.02
.01
.04
.02
.01
.02
.08
.05
.03
30
.19
3-4
.02
.01
.01
.02
.13
.01
.01
.01
.03
.01
.11
.05
.05
.02

.00
.00
.01
.01
.01
.09
.02
.01
.02
.01
.03
.02
.00
.01
.23
.04
.03
30
.23
4-5
.03
.01
.01
.02
.13
.01
.02
.03
.03
.02
.15
.05
.03
.01

.01
.00
.02
.01
.01
.11
.02
.01
.03
.03
.03
.01
.00
.02
.20
.03
.04
30
.20
5-6
.06
.03
.03
.08
.16
.02
.07
.10
.05
.07
.19
.10
.02
.04

.06
.02
.05
.03
.02
.15
.04
.08
.10
.10
.04
.01
.00
.02
.16
.01
.06
30
.19
6-7
.1C
.06
.OC
.16
.28
.03
.15
.15
.0?
.19
.40
.14
.06
.11

.1C
.05
.10
.06
.04
.34
.07
.16
.19
.20
.07
.00
.03
.06
.19
.06
.12
30
.40
7-8'
.1C
.oc
.1C
.11
.25
.05
.15
.15
.11
.24
.49
.17
.07
.12

.15
.06
.14
.09
.05
.41
.08
.22
.18
.26
.1C
.oc
.08
.11
.16
.08
.14
30
.45
8-9
.Of
.oc
.oc
.16
.24
.06
.11
.1!
.11
.14
.28
.19
.05
.10

.1C
.03
.1C
.07
.04
.30
.07
.21
.18
.23
.08
.01
.11
.13
.14
.13
.12
30
.30
9-1O
.01
.Of
.06
.1C
.13
.06
.09
.11
.08
.08
.12
.13
.03


.05
.03
.07
.04
.03
.19
.05
.14
.12
.11
.01
.01
.1C
.12
.09
.13
.09
29
.19
1O-1 1
.06

.0!
.01
.0!
.05
.05
.01

.01
.06
.01
.03

.02
.04
.02
.04
.04
.03
.13
.05
.11
.11
.15
.06
.01
.10
.09
.08
.07
.06
29
.15
1 1-12
.03
.05
.05
.10
.05
.05
.06
.05
.05
.05
.04
.10
.01
.03
.02
.02
.02
.06
.03
.03
.06
.05
.06
.13
.17
.04
.01

.06
.06
.06
.05
30
.17
P.M.
12-1
.01
.0!
.04
.11
.05
.04
.01
.05
.06
.05
.04
.OS
.01
.02
.01
.02
.03
.05
.04
.03
.04
.04
.0!
.1
.12
.04
.0]

.06
.06
.04
.05
30
.12
1-2
.02
.04
.0!
.11
.06
.0!
.10
.08
.01
.06
.OS
.08
.02
.02
.02
.01
.03
.04
.03
.03
.05
.04
.07
.12
.1C
.04
.02
.10
.05
.06
.03
.05
31
.12
2-3


































3-4






.11
.1C

!o9


.02
.03
.03





.08
.06


.10

.02
.14




12
.14
4-5
.02

.Of
.1C
.06
.01
.11
.12
.11
.16
.05
.11
.03
.06
.05
.02
.06
.06
.05
.01
.01
.01
.Of
.13
.1C
.04
.02
.12
.08
.17
.08
.08
31
.17
5-6
.03
.03
.07
.10
.05
.07
.08
.12
.09
.17
.02
.23
.04
.08
.05
.03
.05
.05
.06
.07
.06
.06
.06
.11
.08
.04
.02
.14
.08
.11
.14
.08
31
.23
6-7
.0:
.01
.01
.11
.01
.06
.06
.01
.04
.16
.02
.It
.01
.08
.05
.02
.02
.07
.07
.09
.04
.04
.06
.11
.08
.05
.03
.12
.08
.07
.16
.07
31
.18
7-8
.02
.06
.06
.11
.Of
.06
.05
.06

!25
.08
.08
.01
.06
.0*
.03
.03
.01
.01
.11
.04
.05
.08
.11
.09
.06
.03
.09
.07
.06
.11
.07
31
.25
8-9
.0:
• 0
-------
CONTINUOUS AIR MONITORING PROGRAM
      Air Quality Section, Laboratory of Engineering and Physical Sciences
      Division of Air Pollution, Public Health Service
      U. S. Department of Health, Education, and Welfare

C.O    Robert A. Taft Sanitary Engineering Center
CD    Cincinnati, Ohio 45226
                  Table 3-23

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                   CONCENTRATION IN PPM
                                                                    COLORIMETRIC  ANALYSIS
                                                                                     CHICAGO.ILL.
                                                                                     NITRIC OXIDE
                                                                                        NOV.  1968
DAY
MONTH
1
2«
3«
4
5
6
7
8
9«
10«
11
12
13
14
15
16«
17«
18
19
20
21
22
23*
24«
25
26
27
28
29
30«
MEAN
NO
MAX.

12-1
.02
.Ofl
.12






.12
.09
.08
.1C
.07
.14
.1C
.07
.05
.OS
.04
.08
.06
.06
.06
.07
.05
.07
.16
.09
.10
.08
24
.16

1-2
.01
.09
,0<





.1C
.10
.06
1.04
.06
.04
.07
.05
.05
.04
.04
.02
.07^
.04
.03
.05
.05
.03
.06
.10
.06
.08
.06
25
.10

2-3
.01
.04
.0!





.06
.06
.06
.O1
.04
.04
.04
.03
.04
.03
.02
.02
.05
.03
.03
.03
.04
.01
.04
.08
.04
.07
.04
25
.08

3-4
.01
.02
.04





.04
.05
.05
.02
.03
.03
.02
.02
.03
.02
.02
.01
.04
.02
.02
.03
.02
.01
.03
.04
.03
.05
.03
25
.05

4-5
.01
.02
.02





.04
.03
.04
.02
.031
.03
.03
.01
.02
.02
.01
.01
.03.
.02
.02
.02
.03
.01
.0?
.03
.02
.04
.02
25
.04
A
5-6
-.01
.02
.01





.04
.04
.05
.03
.02
.04
.07
.01
.02
.03
.01
.01
.04
.03
.03
.02
.05
.03
.02
.02
.03
.03
.03
25
.07
M.
6-7
.03
.04
.01





.08
.05
.05
.11
.08
.09
.11
.03
.02
.05
.04
.05
.06
.06
.04
.03
.12
.06
.09^
.02
.07
.04
.06
25
.12

7-8
.0!
.o<
.01





.12
.07
1 ^
1. 1 P
.U
.12
.14
.07
.03
.09
.09
.10
• 1C
.1*
.06
.05
.22
.12
.23
.03
.15
.07
.10
25
.23

8-9
.0!
.1C
.02





.15
.07
.13
.72
.16
.14
.14
.1C
.03
.11
.121
.11
.1C
.19
.oe
.04
.24
.19
.20
.04
.18
.09
.12
25
.24

9-10
.04
.11
.02





.13
.07
.15
«2C
.ZC
.16
.16
.11
.04
.12
.131
.08
.08
.18
.06
.03
.20
.16
.13
.04
.18
.10
.12
25
.20

IO-1 1
.02
.OS
.0!





.11
.06
.1!
. 1 1
.14
.14
.14
.11
.03
.09
.1C
.06
.07
.12
.0?
.04
.14
.08
.08
.06
.14
.12
.09
25
.15

1 1-12
.02
.05
.03





.10
.07
.13
.10
.17
.13
.13
.04
.10
.07
.07
.08
.22
.04
.04
.11
.05
.08
.07
.10
.11
.09
24
.22

12-1
.01

,0*





.1C
.07
.13
.1C
.11
.12
.18
.04
.1C
.071
.0?
.05
.1!
.04
.0!
.06
.0!
.08
.04
.11
.09
.08
24
.18

1-2
.01
.Oft
.0!





.06
.07
.12
.11
.06
.07
.12
.23
.06
.08
.08
.05
.06
.07
.06
.04
.08
.04
.09
.06
.10
.10
.08
25
.23

"2-3































3-4
.01




























1
.05

4-5
.06
.13
.1C





.1C
.1C
.1!
.09
»1<
.16
.20
.1C
.11
.09
.1C
.11

.Oft
.06
.16
.13.
.19
.08
.13
.12
.12
24
.20
p
5-6
.06
.16
.11





.09
.12
.18
.13
.12
.11
.17
.10
.13
.09
.11
.13
.17
.07
.12
.17
.17
.23
.08
.13
.13
.13
25
.23
M.
6-7
.07
.11
.0?





.Ot
.12
.It
.12
.1C
.09
.1!
.1C
.13
.07
.11

.16
.05
.11
.12
.15
.23
.06
.1C
.15
.11
24
.23

7-8
.01
.09
.Of





.06
.11
.14
.12
.OS
.1C
.12
.1C
.1C
.071
.11
.Of
.12
.06
.1C
.10
.11
.16
.06
.09
.16
.10
25
.16

8-9
.01
.Of
.Of





.0?
.1C
.1!
.11
.1C
.OS
.11
.1C
.1C
.07
.1C
.06
.oe
.01
.09
.13
.11
.11
.07
.08
.16
.10
25
.16

9-10
.Of

,o«





.01
.10

.11
.12
.10
.1C
.09
.12
.1C
.09
.0!
.05
.07
.07
.13
.12
.16
.07
.oe
.15
.1C
25
.16

10-1 1
.01
.11
.01





.-1C
.11
.12
.in
.12
.11
.11
.08
.11
.Ofl
.09
.Oft
.051
.04
.08
•'<
.12
.15
.09
.08
.11
.10
25
.15

1 1-12
.08
.11
.07





.12
.10
.10
.08
.14
.13
.11
.06
.07
.07
.10
.06
.06
.05
.07
.10
.13
.15
.10
.07
.10
.09
25
.15

MEAN
.038
.076
.055





.087
.080
.114
.095
.099
.104
.102
.057
.081
.068
.066
.068
.097
.048
.057
.113
.087
.118
.063
.093
.098
.083
.118
NO.
OF
MRS.
?•
22
22





21
22
22
22
22
22
22
22
22
22
22
21
21
2?1
22
22
22
22
22
22
22
546

MAX.
.09
.18
.14





.16
.14
.20
.22
.23
.18
.25
.12
.15
.14
.12
.13
.28
.09
.15
.29
.23
.27
.21
.20
.19
.29
  * Indicates Saturday or Sunday
   Local standard time used
                                                                TABULATED   WED»*  SEP.  10 »  1969

-------
        CONTINUOUS MR MONITORING PROGRAM
        Air Quality Section, Laboratory of Engineering and Physical Sciences
        Division of Air Pollution, Public Health Service
        U. S. Department of Health, Education, and Welfare


        Robert A. Taft Sanitary Engineering Center
        Cincinnati. Ohio 45226
                 Table 3-24


           HOURLY AVERAGES OF

GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
CHICAGO.ILL.

NtTRIC  OXIDE
    DEC.  1968
DAY
OF
MONTH
I*
2
3
4
5
6
7»
8*
9
10
U
12
13
14*
15«
16
17
18
19
20
21«
22«
23
24
25
26
27
28«
29«
30
31
MEAN
NO.
MAX.
A.M.
12-1
•21
.06
.14








.03
.03
.0?
.18
.08
.!«
.07
.08
.04
.11
.13
.04
.06
.09
.0}
.13
• ^
.09
.10
.03
.09
23
.19
1-2
.07
.09
.1C







.06
.02
.02
.04
.13
,0«
.14
.07
.04
.03
.13
.OS
.03
.04
.08
.05
.10
.12
.09
.07
.03
,07
24
.14
2-3
.0!
.OS
.OS







.o«
.01
.02
.03
.10
.06
.12
.05
.02
.02
.14)
.07
.03
.03
.06
.06
.10
.08
.08
.06
.03
.06
24
.14
3-4
.0!
.oe
.01







.03
.01
.02
.03
.07
.04
.16
.04
.03
.02
.OS
.04
.01
.02
.04
.03
.08
.06
.05
.04
.03
.05
24
.16
4-5
.04
.04
.01







.03
.01
.01
.03
.06
.0!
.11
.04
.02
.03
.05
.02
.02
.02
.03
.03
.08
.04
.04
.03
.03
.04
24
.17
5-6
.05
.04
.07







.05
.01
.02
.03
.06
.05
.19
.05
.02
.03
.05
.02
.02
.03
.04
.03
.08
.04
.03
.03
.02
.04
24
.19
6-7
.04
.0!
.15







.10
.04
.OS
.06
.06
.10
.27
.12
.04
.05
.07
.02
.04
.05
.05
.06
.17
.04
.03
.05
.04
.07
24
.27
7-8
.04
.01
.19







'.IS
.07
.01
.09
.06
.16
.36
.18
.10
.12
.13
.03
.08
.09
.07
.08
.24
.06
.04
.14
.07
.11
24
.36
8-9
.04
.16
.22







• It
.oe
.0£
.14
.0!
.22
.26
.18
.17
.16
.14
,03
.11
.14
.09
.10
.28
.08
.05
.11
.09
.13
24
.28
9- tO
.03
.11
• IS







.16
.09
.06
.11
.OS
.19
.17^
.18
.12
.14
.17
.03
.12
.14
.09
.09
.29
.10
.05
.11
.08
.12
24
.29
ton
.0(
.16
.11







.14

.01
.1!
.0!
.18
.11
.19
.09
.13
.19
.04
.08
• 1C
.08
.09
.26
.10
.04
.10
.08
.11
23
.26
1 1-12
.06
.14
.12







.13
.05
.06
.16
.07
.14
.11
.18
.11
.13
.19
.07
.08
.12
.09
.08
.18
.11
.04

.07
.11
23
.19
P.M.
12-1
.1C
.14
.1C







.OS
.Oi
.01
.11
.12
.12
.If
.U
.1!
.11
.16
.08
.08
.13
.09
.09
.23
.12
.05

.07
.11
23
.23
1-2
.12
.1!
.OS







.01
.06
.0!
.19
.16
.1C
.13
.15
.09
.10
.15
.13
.09
.12
.07
.09
.32
.12
.0?
.07
.01
.11
24
.32
2-3


































3-4











.01
.08
.22
.19
.15
.16

.10
.IS
.13
.12
.OS
.12
.05
.15
.36
.07
.08
.08^
,o<
.13
19
.36
4-5
.1!
.1!
.11








.01
.oe
.2!
.2C
.16
.IS
.24
.08
.15
.16
.11
.1C
.12
.03
.15
.35
.08
.11
.12
.01
.14
23
.3S
5-6
.17
.15
.12








.08
.07
.22
.22
.19
.18
.27
.08
.16
.14
.06
.10
.12
.07
.15
.39
.09
.14
.16
.08
.15
23
.39
6-7
.16
.It
.OS








.06
.01
.1C
.24
.18
.18
.2!
.09
.16
.14
.06
.1C
.10
.19
• 12
.35
.09
.13
.13
.06
.14
23
.35
7-8
• If
.!<
.OS








.0<
.06
.11
.21
.16
.12
.19
.06
.13
.1C
.05
.08
.11
.20
.11
.35
.OE
.15
.09
.04
.12
23
.35
8-9
.Oi
.1:
.oe







.o<
.03
.06
.It
.18
.11
.13
.2C
.04
.09
.12
.05
.01
.09
.12
.12
.2?
9-10
.01
.11
.oe







.OJ
.03
.06
.!<
.16
.1!
.12
.19
.05
.10
.11
.05
.01
.09
.09
.1C
.25
.09 .08
.14
.08
.04
.11
24
.29
.12
.07
.0*
.1C
24
.25
10- II
.0 =
.11
.Of







.04
.02
.05
.13
.18
.16
.14
.13
.04
.09
.14
.04
.06
n-12
.10
.13
.08







.04
.02
.05
.16
.14
.19
.09
.14
.04
.12
.20
.04
.06
.08 .10
.10 .07
.09 .15
.19 .24
.08 .07
.121 .12
.05
.04
.03
.04
.09 .10
24
24
.19. .24
DAILY
MEAN
.078
.115
.108







.084
.044
.053
.127
.128
.132
.170
.147
.071
.099
.130
.059
.068
.087
.082
.089
.229
.086
.0.79
.081
.052
.100

.229
NO.
OF
MRS
22
22
22







11
22
23
23
23
23
23
22
23
23
23
23
23
23
23
23
23
23
23
21
23

539

3-MIN.
MAX.
.19
.20
.24







.24
.10
.09
.27
.26
.24
.45
.31
.19
.19
.22
.20
.14
.17
.22
.16
.44
.22
.16
.17
.09


.45
CO
CO
            Indicates Saturday or Sunday
            Local standard time used
                                                                TABULATED   WED.U  SEP.  10» 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Tabje 3-25

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
     CHICAGO.ILL.
NITROGEN DIOXIDE
         JAN.  1968
DAY
OF
MONTH
1
2
*
4
5
6«
7«
8
9
10
U
12
13«
!<•»
15
16
17
18
19
20«
2l«
22
23
24
25
26
27«
28«
29
30
31
MEAN
NO
MAX.
A.M.
12-1



.03
.03
.02
.03
.03
.03
.03
.03
.03
.04
.04
.04
.04
.05
.06
.03
.03
.03

.04
.04
.04
.04
.04
.04
.04


.04
25
.06
1-2
.02

.03
.03
.03
.02
.03
.04
.04
.03
.03
.03
.04
.04
.04
.04
.05
.06
.03
.03
.03


.04
.04
.04
.04
.04
.03


.03
26
.06
2-3
.0!

.02
.03
.03
.02
.03
.0'
.04
.03
.02
.03
.04
.04
.03
.04
.05
.05
.03
.03
.03


.04
.04
.04
.04
.04
.03


.03
26
.05
3-4
.02

.02
.03
.02
.02
.02
.04
.04
.02
.03
.03
.04
.04
.03
.04
.05
.05

.03
.03


.04
.04
.04
.04
.04
.03


.03
25
.05
4-5
.03

.02
.03
.03
.02
.02
.04
.04
.03
.02J
.03
.03
.04
.03
.04
.05
.05

.03
.03


.04
.04
.04
.04
.03
.03


.03
25
.05
5-6
.03

.02
.03
.02
.02
.02
.04
.03
.02
.02
.03
.03
.04
.03
.04
.05
.05

.03
.03

.03
.03
.03
.03
.03
.03
.03


.03
26
.05
6-7
.01

.02
.02
.02
.03
.02
.0!
.03
.03
.03
.03
.03
.04
.03
.05
.05
.05

.03
.03

.03
.04
.03
.04
.03
.03
.03


.03
26
.05
7-8
• 02

.03
.03
.02
.02
.03
.05
.03
.03
.04
.03
.04
.01
.03
.05
.05
.05

8-9
.02

.02
.02
.02
.02
.03
.06
.03
.04
.04
.02
•0
-------
CONTINUOUS MR MONITORING PROGRAH
Air Quality Section, Laboratory ot Engineerinj and Physical Sciences
Division ol Air Pollution, Public Health Senice
U. S. Department ol Health, Education, ami Welfare

Robert A. Tall Sanitary Ernineerinj Center
Cincinnati, Ohio 45226
                  Table 3-26

          HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETR1C  ANALYSIS
     CHICAGO,ILL.
NITROGEN DIOXIDE
         FEB.  1968
DAY
MONTH
1
2
3*
4*
5
6
7
8
9
10*
11«
12
13
14
15
16
17*
IB*
19
20
21
22
23
24*
25*
26
27
28
29
MEAN
NO.
MAX.
A.M.
12-1








.04


.0!
.o<
.oi
.041
.0!
.0!
.0!
.03

.05
.05
.05
.05
.06
.05
.05
.05
.05
.05
18
.06
1-2








.04

.04
.0!
.04

.04
.0!
.0!
.04
.0!

.04
.0!
.0!
.03
.06
.0!
.0!
.04
.09
.0^
18
.06
2-3








.04

.04
.04
.0*
.o<
.04
.04
.0*
.o<
.0!

.0!
.03
.0!
.0!
.06
,0«
.OJ
.04
.OS
.04
19
.06
3-4








.04

.04
.04
.04
.04
.04
.04
.04
.04
.0!

.04
.04
.04
.0!
.05
.06
.0!
.04
.09
.04
19
.06
4-5








.04

.04
.04
.04
.04
.04
.04
.04
.04
.0!

.04
.04
.0!
.04
.09
.06
.09
.04
.04
.04
19
.06
5-6








.04

.0*
.04
.04
.04
.04
.04
.04
.04
.05
.04
.04
.04
.05
.05
.05
.06
.05
.04
.04
.04
20
.06
6-7








,o<

.04
.0!
.04
.04
.04
.04
.0!
.04
.Ot
.04
.0!
.05
.05
.05
.09
.07
.05
.04
.05
.09
20
.Ot
7-8








.0;

.04
.0!
.0<
.0<
.04
.04
.0!
.0!
.07
.04
.OS
.05
.05
.05
.05
.01
.05
.0<
.05
.09
20
.OT
8-9








.04

.04
.0!
.0!
.0!
.04
.04
.0!
.0<
.08
.05
.09
.0!
.Ot
.oS
.05
.06
.09
.09
.09
.09
20
.08
9-1O








.04

.04
.09
.01
.09
.09

.09
.04
.06
.05
.04
.0!
.1C
.09
.09
.OS
.ot
.09
.06
.06
19
.10
IO-I 1








.04

.04
.09
.04
.0!


.0«
.Ot

.09
.04
.09
.08
.04
.04

.09
.05

15
.08
1 1-12








.04

.04
.04

.05

.04
.04
.03

.05
.04
.04

.05
.04

.05
.05

14
.05
P.M.
12-1








.04

.04
.09

.0!

.03
.05
.04

.0!
.0!
.03

.09
.04
.08
.06
.09
.0!
.05
16
.08
1-2








.04

.04
.09

.03

.09
.09
.0'
.ot
.05
.09
.09
.04
.06
.09
.08
.06
.09
.09
.05
18
.08
2-3






























3-4
























.09




1
.0!
4-5








.04

.0!
.03
• 0<
.0!
.09
.0!
.03
.0!
.01
.0!
.01
.Ot
.06
.0?
.06
.Of
.01
.06
.06
.04
20
.08
5-6








.04

.04
.05
.06
.06
.06
.06
.05
.05
.06
.05
.06
.06
.06
.07
.06
.08
.04
.05
.06
.05
20
.08
6-7








.04

.04
.0<
.oe
.03
.03
.03
.03
.03
.09
.OS
.09
.06
.06
.06
.06
.07
.0*
.06
.06
.0!
20
.07
7-8








.04

.04
.04
.06
.03

.04
.04
.0!
.03
.05
.03
.06
.06
.06
.06
.07
.04
.0!
.oe
.09
19
.01
8-9








.04

.04
.04
.0!
.0!

.04
.0!
.0-
.0!
.0!
.03
.03
.06
.06
.06
.01
.04
.0!
.06
.05
19
.07
9-10








.04

.04
.0!
.06
.03

.0!
.Ot
.0!
.05
.0!
.0'.
.03
.06
.06
.06
.01
.0<
.03
.06
.05
19
.07
1O-1 1








."04

.04
.04
.06
.04

.03
.03
.03

.05
.03
.03
.06
.06
.06
.06
.04
.03
.06
.05
18
.06
1 1-12








.04

.04
.04
.05
.04

.05
.04
.05

.05
.05
.05
.05
.06
.06
.05
.05
.05
.06
.05
18
.06

MEAN








.040

.040
.044
.048
.047
.044
.046
.046
.044
.057
.047
.048
.050
.056
.055
.053
.068
.048
.047
.053
.049
.068
NO.
OF
MRS.








22

21
22
l
-------
to
       CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratory ol Engineering and Physical Sciences
Division ol Air Pollution, Public Health Service
U.S. Department ol Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                 Table 3-27

           HOURLY.AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                        CONCENTRATION IN PPM
                                                                          COLORIMETRIC  ANALYSIS
                                                                                   CHICAGO.ILL.
                                                                              NITROGEN  DIOXIDE
                                                                                     MARCH  1968
DAY
OF
MONTH
1
2«
3»
4
5
6
7
8
9«
10«
11
12
13
14
15
16*
17«
18
19
20
21
22
23*
24«
25
26
27
28
29
30«
31*
MEAN
NO.
MAX,
A.M.
12-1
•29
.03
.0!
.04
.06
•°3
.0!
.06
.o«
.04
.0!
.05
.0!
.04
.05
.05
.08
.06
.06
.04
.04
.05
.05
.05
.06
.06
.06
.05
.05
.08
.05
.05
31
.08
1-2
.0!
.0!
.0!
.04
.0!
.04
.04
.06
.06
.04
.04
.0!
.0!
.06
.05
.05
.07
.05
.05
.04
.03
.04
.05
.05
.05
.05
.06
.04
.03
.08
.05
.05
31
.08
2-3
.04
.0!
.06
.04
.0!
.04
.04
.oc
.0!
.04
.04
.04
.05
.05
.05
.05
.08
.05
.06
.04
.03
.04
.05
.05
.05
.06
.05
.04
.03
.09
.04
.05
31
.09
3.4
.0!
.04
.OS
.04
.0!

.04
.06
.04
.04
.04
.04
.05
.05
.0?
.05
.12
.05
.06
.04
.03
.04
.04,
.05
.05
.05
.05
.04
.03
.08
.04
.05
30
.12
4.5
.04
.04
.05
.04
.04

.0!
.OC
.01
.03
.04
.04
.04
.05
.05
.05
.09
.04
.05
.03
.03
.04
.04
.05
.05
.05
.05
.04
5-6
.04
.04
.05
.04
.06

.05
.05
.03
.03
.04
.04
.04
.05
.04
.05
.09
.05
.06
.03
.04
.04
.04
.04
.04
.05
.05
.04
.041 .04
.07
.04
.05
.06
.04
.05
30 30
.09 .09
6-7
.04
.0!
.0!
.0*
.06

• OS
.06
.03
.03
.05
.04
.04
.05
.05
.05
.09
.05
.06
.03
.04
.04
.04
.04
.05
.06
.06
.04
.03
.06
.03
7-8
.0!
.0!
.0!
.0<
.0!

.01
.06
.02
.04
.05
.05
.05
.05
.05
.06
.09
.06
8-9
.0!
.0!
.0!
.0!
.06

,08
.06
.04
.03
.0!
.05
.06
.05
.05
.08
.08
.06
.061 .06
.03. .03
.OS .05
.05 .05
.04) .04
.051 .05
.05
.06
.05
.07
,07j .07
.04> .04
.04
.06
.03
.05! .05
30 30
.09 .09
.06
.06
.04
.05
30
.08
9-10
.0!
.0!
.04

.06

.08
.01
.03
.04
.05
.05
.06
.05
.05
.11
.15
.07
.06
.04
.05
.051
1O-1 1
.0<
.0!
.04

.0!
.0!

.01
.04
.03
.0!
.0!
.0!
.05
.06
.13
.17
.07
.06
.04
.0!
.05
.04) .04
.051
.06
.07
.07
.05
.06
.06
.03
.06
29
.15
.05
.06
.07
.07

.06
.06
.03
.06
28
.17
1 1-12
.06
.05
.04
.05
.05
.05

.07
.04
.04
.05
.05
.05

.06
.10
.13
.07
.06
.05

.05
.05
.05
.05
.07
.08

.06
.05
.03
.06
27
.13
P.M.
12-1
.01
.0!
.0!
.0!
.0!
.0!
.06
.01
.04
.01
.0?
.05
.05

.06
.08
.06
.01
.06
.04

.05
.05
.05
.06
.06
.07
.03
.06
.06
.03
.05
29
.08
1-2
.01
.0!
.0!
.01
.0!
.09
.06
.01
.04
.03
.05
.05
.0!

.07
.01
.07
.07
.06
.04

.05
.05
.05
.06
.06
.07
.05
.06
.06
.03
.06
29
.07
2-3


































3-4


































4-5
.0<
.0!
• Of
.06
.0<
.06
.01
.01
.04
.04
.06
.05
.06
.06
.07
.07
.06
.01
.06
.05
.0!
.05
.06
.06
.08

.08
.06
.06
.07
.03
.06
30
.08
5-6
.06
.06
.06
.06
.07
.06
.07
.07
.04
.04
.06
.05
.06
.06
.07
.07
.07
.07
.06
.05
.05
.05
.06
.05
.08
.07
.07
.06
.06
.07
.04
.06
31
.08
6-7
.0<
.o<
.01
.06
.01
.06
.01
.01
.04
.04
.06
.05
.06
.06
.06
.01
.07
.07
.06
.05
.05
.05
.06
.06
.oe
.01
.01
.06
.06
.07
.04
.06
31
.08
7-8
.0<
.Of
.0<
.01
.06
.06
.01
.01
.04
.0<
.06
.05
.06
.06
.05
.01
.01
.07
.05
.05
.OS
.06
.06
.06
.01
.08
.06
.06
.06
.07
.05
.06
31
.08
8-9
.0(
.0!
.0!
.Of
.OJ
.06
.01
.01
.03
.0!
.0!
.05
.06
.01
.05
.07
.01
.01
.05
.05
.05
.05
.06
.06
.01
.0^
.07
.05
.06
.07
.05
.06
31
.09
9- 1O
.0<
.0!
.0!
.01
.0!
.oe
.OE
.06
.03
.OS
.0!
.05
.06
.06
.05
.oe
.01
.06
.05
.OS
.05
.05
.05
.06
.06
.09
.06
.06
.06
.06
.0!
.06
31
.09
1O-1 1
.0!
.0!
.0!
.oe
.0!
.0!
.01
.01
.-04
.0!
.05
.05
.06
.06
.05
.01
.01
.06
.05
.04
.05
.05
1 1-12
.05
.05
.05
.06
.04
.05
.06
.08
.04
.05
.05
.05
.06
.05
.05
.06
.06
.06
.04
.04
.05
.05
.05 .05
.06 .06
.06 .06
.oq' .07
.06 .05
.05 .05
.06' .06
.05
.05
.05 .05
.06 .05
31 31
.08 .08
DAILY
MEAN
.054
.050
.050
.053
.054
,052
.061
.065
.040
.036
.050
.046
.053
.056
.053
.070
.087
.061
.057
.041
.044
.048
.048
.052
.059
.066
.063
.047
.051
.065
.039
.054

.087
NO.
OF
MRS.
2!
22
22
2(
22
1!
2(
22
22
22
25
22
22
19
22
22
22
22
22
22
19
22
2?
22
22
21
22
20
22
22
22

662

5-MIN,
MAX.
.09
.06
.06
.09
.07
.06
.09
.09
.08
.05
.07
.05
.07
.07
.07
.13
.18
.08
.07
.05
.06
.06
.06
.07
.08
.10
.09
.06
.07
.09
.05


.18
        * Indicates Saturday or Sunday
          Local standard time used
                                                                                                                    ABULATED   WED.,  SEP.  10,  1969

-------
        CONTINUOUS MR MONITORING PHOGRMI
        Ail Quality Section, Libontorf of Enjinettinj and PtiysiMl Sciences
        Ohrision of Ail Pollution. Public Holth Senmt
        U. S. Deptrtment of Heitth. Eotatnn. ait Weltin

        Robert A. I tit Switny Entinroinj Centei
        CinciraaH Ohio 45226
                 Table 3-28

          HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
     CHICAGO,ILL.
NITROGEN  DIOXIDE
       APRIL  1968
DAY
MONTH
2
3
4
5
6«
7»
8
9
10
11
12
13*
14*
15
16
17
18
19
20«
21*
22
23
24
25
26
27«
28*
29
30
MEAN
NO.
MAX.
A.M.
12-1
.04
lot
•X
.04
.0!
.01
.Of
.03
.03
.0!
.0!
.0!
.01
.0!
.04
,oe
.0!
.0!
.oe
.04
.04








.05
Si'
.07
1-2
.oc
.0!
.04
.0!
.06
.0!
.01
.02
.04
.oe
.0!
.oe
.0!
.04
.0!
• 0!
.0!
.06
• °^
.04








.05
.05
21
.06
2-3
.0!
.oe
.04
.04
.04
.oe
.0!
.04
.0!
.03
.oe
.0!
.0!
.0!
.031
.05
.03
.0!
.06
•°*i
.03








.04
.04
22
.06
3-4
:2i
.02
• 04
.04
.oe
.0!
.02
.02
.02
.oe
.0!
.0!
.02
.03
.0!
.04
.04
.09
.05
.04








.04
.04
22
.06
4-5
.04
.0!
.0*
• 0*
.0!
*0(
.0!
.02
.02
.02
,0«
.0!
.0!
.02
.03
.0!
.04
.0!
• 0!
.04
.04








.05
.04
22
.06
5-6
.04
.05
.04
.04
.05
.05
.05
.03
.03
.04
.06
.05
.05
.03
.03
.05
.05
.05
.05
.04
.04








.07
.04
22
.07
6-7
.04
.oe
.04
.04
.0!
.0!
.0!
.04
.04
.0!
.0!
.0!
.0!
.02
.0!
.0!
.0!
.0!
.0!
.04
.04








.08
.05
22
.08
7-8
.04
.oe
.04
.04
.09
.0!
.0!
.04
.0!
.OS
.0!
.oe
.oe
.02
.0!
.06
.0!
.06
.04
.06
.04








.11
.05
22
.11
8-9
.04
.oe
.04
.04
.0!
.0!
.0!
.04
.0!
.0!
.oe
.oe
.oe
.02
.0!
.06
.0!
.oe
.03
.07
.04








.1C
.05
22
.10
9-IO
.06
.oe
.04
• 04
.0!
.0!
.0!
.04
.0!
.0!
.0!
.01
.01
.02
.09
.06
.0!
.oe
.oi
.07
.04







.oe
.09
.05
23
.09
10-11
.06
.04
.04

.0!
.0!
.0!
.0!
.0!
.0!
.01
.01
.02
.06
.06


.03
.07
.0!







.07
.08
.0!
19
.oe
11-12
.05
.05

.04

.05
.05

.05
.05
.05
.07
.07
.05
.06
.06



.07
.05







.07
.07
.06
17
.07
P.M.
12-1
• 0!
.0!

.0<

.0!
.0!
.04
.0!
.0!
.0!
.01
.01
.01
.06
.06



.01
.0!







.01
.07
.0!
18
.08
1-2
• Of
.0!

.0<
.0!
.Oe
.o<
.04
.0!
.0!
.0!
.01
.oe
.03
.06
,0«
.0!
.0!

.06
.06







.1C
.07
.06
21
.10
' 2-3






























3-4





.0!























1
.05
4-5
.01
.oe
.04
.04
.0(
.Of
.0!
.0!
.0!
.0!
.oe
.Of
.Of
.03
.01
.06
.01
.oe
.oe
.0!
.04







.01
.09
.oe
23
.09
5-6
.07
.06
.04
.04
.06
.06
.05
.05
.04
.05
.06
.08
.07
.04
.07
.07
.07
.08
.06
.05
.09







.07
.08
.06
23
.09
6-7
.01
.oe
.o<
.o<
.oe
•o<
.0!
.0!
.0!
.0!
.oe
.Of
.01
.02
.01
.01
.01
.01
.0!
.05
.0?







.01
.0«
.06
23
.09
7-e
.oe
.oe
.o«
•o<
.oe
.oe
.0!
.0!
.0!
.0!
.oe
.01
.oe
•o<
.06
.01
.oe
.01
.02
.09
.0;







.01
.oe
.oe
23
.09
8-9
.oe
.oe
.04
.0!
.0!
.oe
.04
.02
.0!
.o<
.oe
.01
.oe
.03
.oe
.oe
.oe
.01
.03
.05
.08







.01
.06
.0;
23
.08
9-10
.oe
.0!
.o<
.0!
.06
.Or
.0!
.04
.0!
.04
.0!
.01
.oe
.02
.oe
.0!
.oe
.01
.03
.0!
.08







.oe
.oe
.0!
23
.06
1O-1 1
.oe
.0!
.04
.0!
.0!
.0!
.02
.02
iO!
.0!
.0!
.01
.06
.0'
.06
.0!
.06
.01
.04
.04
.01







.06
.06
.05
23
.07
1 1-12
.06
.04
.04
.05
.06
.06
.03
.03
.05
.05
.05
.05
.05
.03
.06
.05
.06
.06
.04
.04
.07







.06
.05
.05
23
.07

MEAN
.051
.056
.041
.042
.052
.057
.046
.039
.043
.045
.054
.063
.062
..035
.052
.057
.053
.060
.045
.051
.056







.070
.067
.052
.070
NO.
OF
MRS.
2(
2<
1<
2!
H
2;
22
21
2!
2!
2!
2<
22
22
22
22
l
-------
CONTINUOUS MR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U.S. Department of Health, Education, and Welfare

Robert A. Tart Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-29

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                  CONCENTRATION IN PPM
                                                                    COLORIMETRIC ANALYSIS
                                                                                    CHlCAGOtlLL.

                                                                               NITROGEN DIOXIDE
                                                                                         MAY  1968
DAY
OF
MONTH
1
2
3
4*
5*
6
7
8
9
10
11*
12*
13
14
15
16
17
18*
19*
20
21
22
23
24
25*
26*
27
28
29
30
31
MEAN
NO.
MAX.
A.M.

12-1
.0!
.01
.01
.0!
.0!
.04
.0*
.06
.04
.03
.06
,0«
.01
.08
.04
.05
.03
.01
.0!
.04
.06
.08
.05
.05
.08
.06
.04
.04
.04
.04
.07
.06
31
.08

1-2
.0!
.01
.Of
.0!
.0!
.0!
.04
.0!
.09
.03
.06
.oe
.01
.01
.05
.0!
.03
.08
.04
.06
.05
.08
.05
.05
.07
.06
.04
.04
.04
.04
.06
.05
31
.08

2-3
.0!
.01
.oe
.04
.04
.06
.03
.04
.03
.03
.06
.07
.01
.Of
.05
.03
.03
.08
.04
.09
.05
.07
.05
.04
.05
.05
.04
.04
.04
.04
.05
.05
31
.08

3-4
.0'
.Of
.06
.02
.04
.06
.03
.04
.04
.03
.01
.06
.01
.0?
.06
.03
.03
.06
.04
.04
.05
.07
.04
.04
.05
.05
.04
.03
.04
.03
.05
.05
31
.09

4-5
.04
.0!
.0!
.0!
.04
.oe
.04
.09
.04
.03
.01
.0!
.06
.oe
.09
.02
.04
.06
.04
.05
.05
.06
.04
.09
.04
.04
.04
.03
.03
.03
.05
.04
31
.08

5-6
.04
.06
.07
.04
.04
.07
.03
.06
.04
.03
.05
.05
.06
.05
.05
.03
.04
.07
.04
.05
.06
.07
.04
.05
.04
.04
.04
.03
.03
.04
.05
.05
31
.07

6-7
.0!
.Of
.0!
.0!
.04
.01
.0!
.0!
.04
.03
.0!
.06
.01
.09
.06
.04
.09
.01
.04
.05
.07
.08
.05
.06
.05
.05
.04
.04
.04
.04
.07
.05
31
.08

7-8
.0<
.0<
.0!
.06
.04
.01
.06
.0!
.04
.03
.05
.06
.08
.06
.1C
.04
.OS
.01
.04
.05
.06
.11
.06
.06
.05
.05
.05
.05
.04
.04
.10
.06
31
.11

8-9
,0(
.0<
.01
.01
.04
.01
.06
.06
.04
.04
.09
.06
.Of
.05
.09
.04
.01
.01
.04
.09
.OC
.12
.06

.05
.05
.05
.05
.04
.04
.08
.06
30
• 12

9-IO
.OC
.0^
.01
.01
.04
.0!
.09
.06
.04
.04
.06
.01

.09
.1C
.04
.01
.01
.04
.05
.08
.09
.06

.05
.05
.05
.05
.04
.04
.06
.06
29
.10

IO-1 1

.0<
.01
.0(
.04
.0!
.06
.oe

.0!
.oe
.01

.0!
.1C

.01
.01
.0!
.09
.01
.08
.01
.08
.06
.04
.06
.04
.05
.04

.06
26
.10

11-12

.08
.08
.05
.05
.05
.06
.05

.06
.06
.08

.06
.09

.07
.06
.05
.05
.08
'
.07
.09
.07
.05
.06
.04
.06
.05

.06
25
.09
P.M.

12-1

.11
,o<
,ot
.0!
.oe
.oe
.oe
.0!
.06
.01
.1C

.09
.01

.01
.01
.05
.06
.08

.01
.09
.01
.06
.06
.04
.06
.05
.12
.07
27
.12

1-2

.11
.0(
.01
.0!
.06
.01
.06
.04
.06
.01
.09

.06
.01
.03
.01
.01
.09
.06
.OS
.08
.01
.10
.08
.06
.06
.05
.06
.06
.14
.07
29
.14

2-3

.01






























1
.07

3-4


















.06













1
.06

4-5


.Of
• Of
.0!
.01
.OC
.06
.0!
.0!
.0«
.OC
.12
.01
.OC
.0!
.OC
.01
.01
.01
.Of
.08
.01
.11
.09
.06
.06
.06
.08
.06
.16
.07
29
.16

5-6
.06

.08
.05
.05
.07
.08
.05
.04
.06
.09
.08
.09
.07
.07
.05
.07
.06
.07
.07
.08
.07
.07
.10
.08
.06
.05
.06
.07
.06
.14
.07
30
.14

6-7
,0t

.Of
.0!
.0!
.0<
.0!
.06
.03
.06
.OC
.0^
.K
.01
.06
.0!
.01
.0!
.01
.oe
.01
.07
.06
.10
.08
.01
.05
.05
.07
.05
.12
.01
30
.12

7-8
.01
.Of
.0'
.0!
.0!
.OC
.01
.06
.o<
.06
.OE
.oe
.Of
.01
.06
.0!
.01
.05
.01
.01
.07
.oi
.06
.09
.08
.06
.05
.05
.07
.06
.11
.01
31
.11

8-9
.OC
.0<
.0!
.0!
.0!
.0!
.Of
.01
.04
.06
.0;
.Of
.01
.01
.06
.0!
.01
.06
.01
.01
.01
.01
.06
.OS
.08
.01
.0!
.04
.06
.06
.13
.01
31
.13

9-10
.01
.0<
.0!
.0!
.0!
.0!
.01
..06
.04
.06
.Of
.01
.Of
.06
.06
.09
.01
.05
.01
.01
.06
.01
.06
.OS
.08
.01
.04
.05
.05
.06
.12
.06
31
.12

1O-1 1
.01
.K
.0!
.0!
.0!
.OC
.OC
.OC
.03
.06
.Of
.Of
.Of
.06
• OS
.04
.01
.0!
.01
.06
.Of
.01
.06
.08
.07
.06
.09
.09
.04
.08
.09
.06

11-12
.07
.09
.05
.05
.05
.06
.07
.05
.03
.06
.08
.07
.08
.06
.05
.04
.07
.05
.06
.06
.08
.06
.06
.08
.07
.05
.04
.05
.04
.08
.08
.06
31 1 31
.10 .09
DAILY

MEAN
.056
.081
.064
.051
.046
.'059
.055
.054
.038
.047
.069
.072
.077
.064
.067
.041
.057
.064
.054
.057
.069
.077
.059
,074
.065
.054
.046
.044
.049
.049
.092
.059

.092
NO.
OF
MRS.
r
2<
2;
22
22
22
22
22
2(
22
22
22
11
22
22
1<
22
22
23
22
22
2C
22
20
22
22
22
22
22
22
20

660

5-MIN.

MAX.
.07
.12
.10
.08
.06
.08
.09
.07
.05
.07
.09
.12
.12
.11
.13
.06
.08
.09
.08
.08
.09
.12
.08
.11
.09
.07
.06
.06
.08
.08
.17


.17
  * Indicates Saturday or Sunday
    Local standard time used
                                                               TABULATED   NED..  SEP.  10.  1969

-------
       CONTINUOUS Ht MONITORING PROGRAM
       Air Quality Section, laboratory of Engineering and Physical Sciences
       Division of Air Pollution, Public Health Service
       U. S. Department of Health. Education, and Welfare

       Robert A. Taft Sanitary Engineering Center
       Cincinnati, Ohio 45226
                 Table 3-30

          HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
     CHICAGO.ILL.
NITROGEN DIOXIDE
         JUNE  1968
DAY
MONTH
K
3
4
5
6
7
8«
9«
10
11
12
13
14
15«
16«
17
18
19
20
21
22*
23*
24
25
26
27
28
29*
30*
MEAN
NO.
MAX.
A.M.
12-1
.01
.04
.03
.04
.01
.08

.08
.06
.04
.04
.04
.04
.04
.01
,04
,04
.0!
.05
.06
.05
.05
.04
.04
.04
.03
.02
.02
.05
.03
.05
29
,08
1-2
:8J
.05
.04
.01
.01

.09
.08
.03
.04
.03
.03
.04
.0!
.04
,04
.04
.0!
.06
.06
.05
.04
.03
.03
.03
.02
.02
.04
.03
.04
29
.09
2-3
.05
.0*
.06
.04
.01
.0«
.06
.08
.09
.03
.04
.03
.01
.03
.0!
.04
.03
.0!
.0!
,06
.04
.04
.04
.04
.03
.03
.01
.01
.04
.02
.04
30
.09
3-4
.03
.04
.06
.0!
.01
.06
,01
.01
.Of

.03
.02
.02
.03
.0!
.03
.03
.0!
.04
.06
.03
.03
.03
.0!
.02
.03
.01
.01
.03
.02
.04
29
.08
4-5
:°ol
.06
.04
.oe
.oe
.01
.01
.08

.02
.02
.03
.04
.0!
.01
.04
.01
.04
.07
.04
.04
.03
.0-
.03
.03
.01
.01
.03
.02
.04]
29
.08
5-6
.05
. 04
.06
.04
.08
.07
.07
.07
,08
.05
.04
.03
.04
.05
.05
.01
.04
.05
.05
.07
.05
.05
.04
,06
.03
.03
.02
.02
.03
.02
.05
30
,08
6-7
• 06
. 04
.Of
.05
.1C
.08
.Of
.09
.08
.06
.0!
.02
.04
.0!
.04
.02
.0!
.05
.06
.06
.05
.0!
.05
.07^
.04
.03
.021
.02
.03
.02
.05
30
.10
7-8
.oe
.04
.11
.05
.10
.09
.1C
.1C
.01
.07
.OS
.03
.04
.06
.04
.03
.oe
.0:
.oe
.06
.06
.04
.04
.07
.04
.03
.02
.04
.04
.03
.06
30
.11
8-9
.01
• o^
.09
.05

.1C
.09
.11
.01
.01
.06
.02
.05
.oe
.0!
.03
.oe
.06
.09
.05
.07
.04
.05
.07^
.04
.03
.02
.04
.04
.03
.06
29
.11
9-1O
.01
.04
.06
.05
.01
.08
.Of
.12
.0!
.06
.oe
.03
.0!
.oe
.0!
.04
.oe
.07
.08
.04

.04
.05

.04
.04
.021
.04
.03
.03
.09
28
.12
10-1 1
.01
.03
.06
.05
.OE
.01
.Of
.09
.06
.01
.06
.03
.0!
.06
.0!
.04
.05
.01
.01
.04

.0!
.04

.04
.05
.02

.04
.03
n 
-------
O5
      CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory ol Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department ol Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-31

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
     CHICAGO.ILL.
NITROGEN DIOXIDE
         JULY  1968
DAY
MONTH
1
2
3
4
5
6*
7«
8
9
10
11
12
13*
14*
15
16
17
18
19
20*
21*
22
23
24
25
26
27*
28*
29
30
31

NO.
MAX.
A.M
12-1
.02
,03
.04
.06





1-2
.03
.1^
.04
.05




.03
.01 .01
.01 .OC
.04 .04
.0^ .05
.05 .04
.01
.01
.04 .04
.OS .02
,03! .03
.041 .03
.03 .02
.06 ,06
.05, .05
2-3
.02
.0^
.04
.06




.02
.OC
.00
3-4
.02
.(it
.03
.0!




.02
.00
.OC
.03 .03
.04] .04
.03! .03.
.Oil .01
.04 .03
.02 .02
.Ol! .01
4-5
.03
.0^
.03
.04





.OC
5-6
.03
.03
.04
.04




.04
.01
.00 .00
.03 .03
.05
.03
.00
.06
.03
.01
.03; .03
.03 .04
.02, .02
.02 .01 .02| .02
.02 .02
.06
.04
.04 .03 .02
.06
.04
.02
.04 | ,05j .03
.05 .04
.01 .01
.06 .05
.0? .01
.03| ,02
.05
.05
.04
26
,06
.05
,04
.03
26
,06
.03 .02
.00! .00,
.05] .04
.01 .01
.02 .01
.04j .04
.03
.03
27
.06
.03
.02
27
.06
.03 .03
.05 .05
.03 .04
.02 .03
.03 .04
.02 .05
.01 .01
.05 .05
.01 .01
.00 .00
.04 .04
1
.04 .05
.02
26
.05
.03
27
.06
6-7
.04
.0^
.0!
.0'




.04
.01
.01,
7-3
.04
• 04
.06
«0<





8-9
.05
.0'
.01
.03





.02) .02
.02
.03 .05
.OT| .09
.03| .03
.01 .02
.03 .OS!
.05, .06
.02
.05
.12
.05
.04
.07
.06
.02{ .03 .03
.03| .04)
.03, .03 .03
9-10
.05
. 04
. 06





10-11

.0!
.06





.07, .01
.02 .02
.02
.13

.05
.06
.02
.11
.09
.06
.07
.091 .07
.061 .05
.04 .04
• 051 .06|
.04
.05
.05 .05 .051 .04J .04
.04 .04 .04] .04 .04
,05i .05 .05 .07] .07
.05 .07 .10 .1C
.05 .05 .05 .05 .06
.02 .02 .03 .06 .06
.OS .05 .OS .05!
.01 .01 .011 .Oil .01
.01 .01 .01
.OS .07] .07
i
1
.03 .041
25 25
.07 .09
.05
.05
25
.12

.08| .07
.04
.05
24
.13
.06
.06
23
.17
1 1-12
.04
.05
.05
.03





.02
.03
.11
.06
.04
.06
.05
.05
.04
.04
.06
.04
.05
.08
.09
.06
.07
.05
.01

.07
.07
.05
25
.11
P.M.
12-1
.09
.0!
.0!






.03
,o<
.11
.06
.04
.05
.05
.05
.osi
.03
.06
.05
.05
.07
.05
.05
.06
.06
.02

.07
.07
.05
24
.11
1-2
•°3
.0!

.0-




.05
.03
.05
.1C
.06
.04
.05
.04
.06
.06
.03
.06

.05
.08
.07

.07
.09
.02
.07
.07
.07
.06
24
.10
2-3


































3-4










.0!

.04
.03














.01
.08


5
.08
4.5
.0'
.0!
.0!





• O1
.02
.01
.01
.06
.03
.04
.05
.04
.01
.02
.06
.04
.01
.01
.01
.03
.09
.05
.02

.08
.06
.05
25
.09
5-6
.04
.05
.05





.03
.02
.06
.07
.07
.03
.04
.06
.04
.06
.02
.06
.06
.06
.09
.06
.03
.08
.04
.03

.07
.06
.05
25
.09
6-7
.04

.0!
.03




.02
.01
.06
.01
.01
.03
.05
.05
.04
.06
.02
.06
.05
.01
.06
.06
.04
.OS
.04]
.03

.01
.05
.05
26
.08
7-8
• 0^
,o<
.0!
.03




.02
.01
.06
.01
.07
.04
.05
.05
.03
.06
.02
.06
.06
.06
.06
.06
.04
.07
.04
.03

.07
.06
.05
26
.07
8-9
.04
.0*
.04
.0'




.0;
.0]
.06
.01
.01
.04
.04
.06
9.10
.04

.04





.02
.01
.0!
.01
.01
.04
.04
.06
.031 .03
.061 .05
.02
.06
.07
.06
.05
.06
.03
.09
.04
.03

.01
.05
.05
26
.09
.03
.06
.01
.06
.06
.06
.03
.01
.03
.03
.05
.08
.0!
.051
27
.08
1O-1 1
• 04
• 0'
.04





.0?
.01
.Of
.01
.06
.02
.03
.06
.03
.04
.03
.05
.07
.06
.06
.05
.03
.05
.03
.03
.04
.08
.05
.04
26
11-12
.04
.04
.05
.03




.01
.01
.06
.06
.05
.02
.03
.05
.02
.05
.03
.05
.06
.06
.06
.06
.01
.06
.03
.03
.04
.06
.04
.04
27
.081 .06

MEAN
.037
.037
.047
.039




.031
.013
.033
.068
.064
.035
.033
.049
.038
.039
.029
.044
.054
.049
.054
.062
.037
.047
.047
.018
.022
.063
.050
.043

.068
NO.
OF
MRS.
?1
22
21
It




1C
22
23
22
22
22
22
22
22
22
21
22
21
22
2?
20
21
22
21
22
\t
23
2G

567


MAX.
.05
.06
.08
.06




.08
.03
.07
.29
.15
.06
.07
.09
.07
.08
.06
.07
.08
.08
.10
.11
.06
.09
.10
.03
.07
.09
.08


.29
        * Indicates Saturday or Sunday
         Local standard time used
                                                                                                                        ftTED   WED..  SFP.  10* 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratory of Engineering and Physical Sciences
Diiision of Air Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-32

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
     CHICAGO.ILL.
NITROGEN DIOXIDE
         AUG.  1968
DAY
MONTH
1
2
3*
4*
5
6
7
8
9
10*
12
13
14
15
16
17*
18*
19
20
21
22
23
24*
25*
26
27
28
29
30
31*
MEAN

MAX.

12-1
,04
»o*
.01
.06
.03
.0!
.05
.05
.03



.04
.02
.04
.03
.02
.02
.03
.04
.03
.03
.04
.03
.03
.03
.04
.06
.08
.07
.04
27
.08

1-2
.03
.0!
.06
.05
.04
.05
.04
.04
.03


.04
.04
.02
.03
.03
.02
.02
.oi
.04
.02
.03
.04
.03
.03
.03
.04
.05
.06
.09
.04
28
.09

2-3
.03
.0!
.06
.06
.03
.04
.03
.03
.03


.03
.04
.02
.03
.02
.0!
.02

.03
.02
.03
.04
.02
.02
.03
.04
.03
.05
.07
.03
28
.07

3-4
.03
.05
.06
.06
.04
.03
.03
.02
.02


.03
.03
.02
.03
.02
.01
.02
.03
.03
.03
.02
.03
.02
.03
.03
.03
.04
.08
.06
.03
28
.08

4-5
.03
.04
.06
.06
.04
.03
.05
.02
.02


.03
.03
.02
.02
.02
.01
.02
.02
.oa!
.03
.02
.03
.02
.03
.02
•°3

.11
.06
.03
28
.11
A
5-6
.03
.05
.05
.07
.04
.04
.06
.05
.03


.03
.02
.03
.02
.02
.01
.02
.03
.04
.03
.03
.03
.02
.03
.03
.04
.06
.09
.06
.04
28
.09
M.
6-7
.04
.Ot
.06
.01
.05
.05
.06
.05
.04


.04
.02
,0«
.03
.02
.02
.02
.03
.04!
.03
.04
.03
.03
.03
.03
.05
.06
.08
.06
.04
2R
.08

7-8
.04
.01
.01
.ot

.05
.01
.01
.08


.04
.03
• 04
.03
.03
.01
.03
.04
.05
.04
.05
.03
.02
.03
.03
.05
.08
.10
.08
.05
27
.10

8-9
.04
.Of
.Of


.01
.01
.OS
.1C


.05
.03
.04
.04
.04
.02
.09
.05
.07^
.04
.06
.03
.02
.03
.03
.05
.10
.12
.11
.06
27
.12

9-10
.04
.01
.11
.OS

.06
.06
.OS
.1C


.04
.03
,04
.04
.04
.02
.061
.05
.09
.05
.07
.05
.02
.03
.04
.04
.15
.11
.11
.06
27
.15

IO-1 1

.06
.13
.OS

.01
.OS
.01
.12


.0'.
.0:
.05
.04
.0!
.02
.06
.06
.06
.17
.08
.12
.03
.04
.04
.06
.12
.09
.10
.07
26
.17

1 1-12

.07
.11
.09

.08
.11
.06
.09


.05
.03
.05
.04
.04
.03
.06
.06
.06
.16
.18
.10
.03
.04
.04
.06
.08
.10
.09
.07
26
.18

12-1
.0!
• Of
• 1C
• OS

.OS
.1C
.0!
.11


.0!
.031
.05
.05
.04
.03
.06
.05
.06
.12
.13
.07
.03
.04
.04
.07
.08
.11
.1C
.01
27
.13

1-2
.05
.Of
.1C


.01
.11
.04
.13


.05
.03
.05
.04
.04
.03
.06
.05
.04
.09
.1C
.05
.04
.04
.04
.07
.08
.10
.1C
.06
26
.13

2-3


































3-4


.1C
.11



.03










.11

.07
.08
.05

.04
.04
.06
.09
.10
.08

13
.11

4-5
.01
.01
.If
.11
.01
.OF
.11
.03
• OS


.0',
.02
.0!
.04
.03
.04
.0!
.11
.05
.oi
.07
.04
.03
.05
.04
.07
.10
.1C
.1C
.07
28
.11
p.
5-6
.04
.08
.08
.10
.07
.07
.10
.03
.07


.05
.02
.04
.03
.02
.04
.05
.09
.06
.06
.06
.04
.03
.04
.04
.07
.09
.09
.10
.06
28
.10
M.
6-7
.04
.0!
.OE
.OS
.05
.01
.01
.04
.01


.06
.02
.04
.03
.02
.04
.0!
.05
.04
.06
.05
.04
.03
.04
.03
.06
.OS
.09
.09
.0!
28
.09

7-8
.04
.01
.01
.OS
.05
.06
.01
.0:
.0'


.06
.0;
.04
.0:
.02
• 0^
• 0'
.06
.04
.05
.05
.04
.03
.04
.03
.07
.08
.09
.08
.05
2R
.09

8-9
.04
.01
• OS
.1C
.06
.06
.01
.0:
.OS


.05
.0:
.04
.0'
.02
.04
.04
.06
.04
.05
.05
.04
.03
.04
.04
.07
.08
.OS
.07
.05
28
.10

9-10
.04
.01
.OS
.OS
.0!
.0!
.01
.03
.Of


.0!
.02
• 0^
.02
.02
.04
.04
.06
.04
.05
.04
.04
.03
.03
.04
.01
.09
.09
.07
.05
?8
.09

IO-1 1
.04
.01
• ns
.Of
.0!
.06
.01
.03



.04
.02
.02
.O1
.02
.03
.04
.06
.04
.05
.04
.03
.03
.03
.04
.07
.09
.Of
.06
.05
27
.OS

1 1-12
.04
.07
.09
.05
.03
.07
.06
.03



.04
.02
.03
.03
.02
.03
.03
.05
.03
.04
.04
.03
.03
.03
.04
.07
.09
.07
.06
.05
27
• 09

MEAN
.039
.063
.083
.080
.048
.058
.070
.043
.070


.044
.028
.035
.033
.028
.025
.039
.053
.047
.059
.059
.043
.027
.034
.034
.035
.080
.090
.080
.052

.090
NO.
OF
MRS.
2f
22
22
22
1!
22
22
23
2C


21
22
22
22
22
22
22
22
22
23
23
23
22
23
23
23
23
23
2:

616

3-MIN.
MAX.
.05
.10
.13
.12
.08
.10
.13
.10
.14


.07
.04
.06
.05
.05
.04
.07
.13
.10
.20
.20
.14
.04
.05
.04
.08
.18
.13
.14


.20
  * Indicates Saturday or Sunday
    Local standard time used
                                                                TABULATED   WED..  SEP.  10,  1969

-------
CONTINUOUS AIR MONITORING PROGRAM
       Air Quality Section. Laboratory of Engineering and Physical Sciences
       Division of Air Pollution, Public Health Service
       U. S. Department of Health. Education, and Welfare

£>     Robert A. Taft Sanitary Engineering Center
CD     Cincinnati, Ohio 45226
                 Table 3-33

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                 CONCENTRATION IN PPM
                                                                   COLOR1METRIC ANALYSIS
                                                                                   CHICAGO.ILL.
                                                                              NITROGEN DIOXIDE
                                                                                     SEPT.  1968
DAY
MONTH
J*
2
3
4
5
6
7«
8«
9
10
11
12
13
14*
15.
16
17
18
19
20
21*
22«
23
24
25
26
27
28«
29«
30



MEAN
NO.
MAX
A.M.
12-1
•S3
.03
.04
.06
.04
.04
.04
.05
1-2
.05
.OJ
.04
.05
.03
.03
.03
.04
.04 .03
.02 .02
.03 .02
.04 ,04
.06 .07
.06 .05
.07, .07
.04
.03 .04
.03 .03
.041 .03
.04 .03
.06 .05
.05 .04
.06 .05

.03 .03
.04 .04
.06
,04
.06
.05



.04
29
.07
.06
.04
.05
.05



.04
28
.07
2-3
.04
.03
.05
.05
.03
.02
.03
.04,
.04
3.4
.03
.03
.04
.0!
.02
.02
.03
.04
.03
.02 .02
.02 .02
4-5
.01
.0'
• 0<
.0!
.02
.02
.04
.04
.04
5-6
.04
.03
.04
.05
.03
.02
.04
.05
.04
.02! .02
.02' .03
.04. .05 .04 .04
.07 .06 .06| .07
.05 .05! .05 .05
.07 ,OT .OT .06
i .061 .0*' .06
.04 .05]
.04 .03
.03! .03
.03, .04
1
.05! .05
.04 .04
.06| .05
I
.03 .03
.04 .04
.03 .04
.01 .03
.04
.04
.0* .05
.04 .03
.05 .05

.03; .03
,04| .04 .04 .04
.05 .05 .06 .06
.04 .04 .03 .04
.05 .07 .06' .05
.05 .04



.04,
28
.07



.04
29
.07
.04 .04




.04] .04
29 29
.07
.07
6-7
.04
.03
.0!
.0!
.03
.03
.0!
.0!
.04
.02

7-8
.04
.03
.OT
.01
.04
.03
.04
.05
e-9
.04
.04
.01
.07
.O:
.05
.04
.05
.OS1 .05
.02 .02
.031 .03J .04
.05
.07
.0*
.06
.06
.05
.06 .07
.1*, .14
,07| .06
,06j .07
:
9-1O
.04
.04

.oe
.0!
.05
.06
10-11
.0!
.0'
• 0^
.07
.04
.05
.06
.04; .05
.05j .05
.02 .03
.04
.07
• 05
.06
.08
.04
.07
.06
.06
.08
.061 .071 .07
.05! .0^ .05, .0!
.05, .04, .04! .04 .04
.03
.05
,OJJ
.03
.05

.04
.05
.06
.05
.05
.05



.05
29
.OT
.03 .031 .04 .04!
.06. .09, .07 .06
.05 .071 ,09j .09
.03 .04 .06 .06
.05 .08:

.04 .04
.07 .OT
.07 .07

.04 .04
.05 .05
.08 .08
.06 .05 .04) .04
.05 .05 .04! .09
.OT .07



.05
29
.U


.06
28
.14




.05
26
.09




.06
27
.09
1 1-12
.05
.04
.07
.06
.04
.04
.06
.05
.05
.03
.04
.07
.07
.07

.08
.05
.04
.04
.06
.09
.07


.04
.05
.09
.04
.05
.08



.06
27
.09
P.M.
12-1
.0!
.04
.01
.0!
.04
.05
.06
.05
.0!
.03
.04
.0;
.06
.01

.07
.04
.04
.041
.06
.07
.OS
.07

.04
.06
.07
.04
.05
.08



.06
28
.09
1-2
.05
.04
«0<
.06
.05
.0!
»0<
.06
.04
.03
.05
.09
.06
.06
.08
.06
.04
.05
.04
.06
.06
.11
.06

.04
.06
.06:
.04
.0!
.08



.06
29
.11
2-3




































3-4
.0!
.0'
.01
,o<
.05
.06

.0!
.04

.0!
.06
.06
.01
.08


.0!
.041
.07
.06
.11
.04

.05
.06



.08



.06
22
.11
4-5
.Of
.0!
.01
.0(
.05
.0!
.06
.06
.03
.03
.0!
.01
.1C
.01
.01
.01
.04
.0!
.0!
.08
.0;
.11


.05
.06
.06
.04
.06
.08



.06
28
.H
5-6
.05
.07
.07
.06
.05
.05
.06
.06
.02
.03
.04
.06
.08
.06
.07
.07
.04
.05
.04
.10
.05
.12


.04
.06
,06
.04
.06
.08



.06
28
.12
6-7
.0!
.01
.01
.0!
.0!
.05
.05
.01
.02
.03
.04
.0!
.OS
.01
.07
.06
.04
.04
.04
.11
.06
.10


.04
.06
.06
.04
.06
.08



.06
28
.11
7-8
.0!
.01
.01
.0!
.0!
.05

.01
.0;
.03
.04
.0(
.oe
.OE
.07
.06
.04
.04
.04
.10
.06
.06


.04
.05
.06
.04
.06
.07



.06
28
.10
8-9
.0'
.01
,o<
.0'
.04
»05
.0!
.01
.02
.03
.04
,01
.01
.on
.07^
.05
.04
.04
.04
.09
.06
9- 1O
.0?
.01
.0<
.0'
.04
.04
.06
.06
.02
.03
.04
.06j
.06
.07
.07
.04
.04
.04
.04
.08
.06
.oa| .oi
.04 .04

.04 .04
.061 .06
.061 .05
.04
.06
• oi



.05
29
.09
.04
.06
.07



.05
29
.06
10-11
.04
.06
• 0<
.04
.04
.04
.05
.05

.03
.05
.06
.07
.07
.07
.04
.03
.04
.04
.07
.05
.06
.04

.04
.07
1 1-12
.04
.05
.06
.04
.04
.04
.06
.04
.02
.03
.05
.07
.06
.07
.06
.04
.03
.03
.04
.06
.05
.07


.05
.06
.04 .04
.06 .06
.06
.06



.06
.06



.05 .05
29 1 28
.07, .07

MEAN
.044
.045
.060
.053
.039
.040
.049
.051
.036
.026
.037
.060
.077
.066
.069
.060
.042
.040
.037
.065
.058
.066
.052

.039
.053
.061
.043
.055
.064



.051

.077
NO.
OF
MRS
2:
2:
22
2'
2?
21
2;
2'
22
22
23
23
2?
2'
21
U
22
23
23
23
23
23
15

23
23
22
22
22
21




644


MAX.
.05
.07
.10
.08
.06
.06
.07
.07
.06
.04
.06
.10
.16
.09
.09
.09
.06
.05
.05
.11
.09
.12
.10

.05
.07
.10
.07
.07
.09





.16
  * Indicates Saturday or Sunday
   Local standard time used
                                                               TABUUATED
                                                                          WED..  SEP.  10.  1969
                                                                                                                                                                    r

-------
       CONTINUOUS AIR MONITORING PROGRAM
       Aii Quality Section, laboratory ol Engineering and Physical Sciences
       Division ol Air Pollution. Public Heallh Service
       U. S. Department ol Health, Education, and Welfare

       Robert A. Taft Sanitary Engineering Center
       Cincinnati, Ohio 45226
                 Table 3-34

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC ANALYSIS
     CHICAGO,ILL.
NITROGEN DIOXIDE
         OCT.  1968
DAY
MONTH
1
2
3
4
5«
6«
7
8
9
10
U
12«
13«
14
15
16
17
18
19*
20«
21
22
23
24
25
26«
27«
28
29
30
31
MEAN
NO.
MAX.
A.M.
12-1
.0!
.04
.02
.03
.06
.05
.04
.04
.05
.03
1-2
.05
.04
.02
.03
.06
.04
.03
.04
.06
.03
.05) .05
.06
.05
.04!
.04
.04
.05
.05
.04
.03
.04
.03; .021
.03' .03
.031 .03
.04 .03
.04, .04
.04 .05
.03 .03
.04 .04
.03
.03
.03
.03
.04 .04
.02 .02
.02
.03
.04
.04
31
.06
.02
.03
.04
.04
31
.06
2-3
.05
.05
.02
.02
.05
.04
.03
.04
.05
.02
.04
.05
.05
.031
.03
.04,
.02
.03
.03
.03
.04
.05
.03
.04
.03
.03
.04
.02
.02
.04
.04
.03
31
.05
3-4
.0!
«0<
.02
.02
.04
.04
.03
.03
.05
.02
4-5
.05
.04
.03
.02
.06
.04
.04
.04
.05
.02
.05J .05
.0!
.04
.03
.03
.03
.02
.03
.03
.03
.04
.05
.03
.04
.03
.03
.04
.01
.02
.06
.03
.03
31
.06
.05
.04
.O1
.03
.04
.02
5-6
.06
.04
.03
.02
.05
.04
.04
.04
.05
.03
.05
.06
.03
.03
.03
.04
.03
.03j .03
.03) .03
.03
.05
.05
.03
.03
.05
.04
.03
.04) .04.
.03) .03
.03 .03
.031 .03
.01' .02
.021 .02
.05 .04
.03J .03
.03
31
.05
.04
31
.06
6-7
.05
.04
.03
.03
.06
.04
.04
.04
.04
.03
.06
.05
.04
.031
.03
.05J
.03
.03
.04
.03
.06
.04
.04
.04
7-8
• ot
.05
.04
.04
.ot
.04
.04
.04
.05
.04
.07
• Ot
.04
,o<
.04
.05
.03
.04
8-9
.01
.Oi
.04
.04
.01
.04
.04
.04
.05
.04
.07
.06
.04
.05
.05
.06
.03
.04
9-1O
.06
.05|
.04
.04
.06
.04
.05
.05
.05
.04
.06
.09
.04

.05
.06
.03
.04
1O-1 1
.01
.05
.04
.04
.05
.04
.05
.05
.05
.04
.06i
.0?
.05

.05
.06
.03
.04
.041 .041 ,04j .05)
.04, .04
.07 .07
.04 .03
.04' .04
.04 .04
.03 .04, .04
.03
.02
.02
.02
.04
.03
.04
31
.06
•H »°5
.02! .02
.02 .03
.03 .03
.04 .04
.04
.04
31
.07

.05
30
.08
.04 .04
.07 .06
.03 .03
• 05j .06
.04! .04
.04 .04
,05J .05
.02 .03
.031
.041 .04
.04| .04

.05
29
.09
.06
.05
29
.09
1 1-12
.07
.06
.04
.04
.06
.04
.06
.06
.06
.04
.06
.13
.04
.06
.05
.06
.03
.04
.04
.04
.06
.03
.05
.04
.04
.05
.03

.04
.04
.06
.05
30
.13
P.M.
12-1
.06

.04
.04
.06
.04
.05
.oe
.oe
.05
.06
.14
.04
.05
.05
.06
.03
.04
.04
.04
.06
.03
.05
.04
.04
.05
.03

.03
.04
.07
.05
30
.14
1-2
.01
.05
.04
.04
.06
.05
.06
.01
.06
.05
.06
.os
.05
.06
.05
.06
.04
.04
.041
.04
.06
.03
.04
.04
.04
.05
.03
.03
.03
.04
.07
.05
31
.09
2-3


































3-4
.01
.oe
.04
.04





.06

.01

.05
.06

.04
.04
.04


.03
.04
.04
.04
.04
.03
.03
.03
.05
.07
.05
21
.07
4-5
.01
.oe
.04
.04
.oe
.0'
.oe
.01
.05
.01
.01
.OE
.04
.oe
.oe
.05
.04
.04
.04
.04
.06
.03
.04
.04
.04
.04
.03
• 03
.03
.05
.07
.05
31
.08
5-6
.07
.06
.04
.04
.05
.04
.05
.07
.04
.06
.06
.07
.04
.06
.06
.05
.04
.04
.04
.04
.05
.03
.04
.04
.04
.05
.03
.03
.03
.04
.07
.05
31
.07
6-7
.06
.oe
.04
.04
.05
.04
.05
.06
.03
.05
.04
.01
.04
.oe
.05
.05
.04
.04
.04
.04
.05
.03
.04
.04
.04
.05
.03
.03
.03
.04
.01
.05
31
.07
7-8
.oe
.oe
.04
.04
.05
.04
.05
.oe
.03
.06
.oe
.Oi
.04
.05
.05
.05
.04
.04
.04
.04
.05
.03
.04
.04
.04
.05
.03
.02
.03
.04
.06
.04
31
.06
8-9
.0'
.oe
.04
.04
.0:
.04
.0'.
.06
.04
.05
.06
.06
.041
.0!
.05
.04
.04
.0!
9-10
.0"

.04
.04
.oe
.04
.05
.05
.04
.oe
.oe
.06
.0',
.0!
.05
.04
.03]
10-1 1
.0!

.0'
.04
.oe
.04
.04
.0!
.'03
.05
.06
.05
.04
.04
.04
.05
.02
.04 .04
.04 .04
.04^ .04
.051 .05
.04 .02
.04 .04
.04 .03
.04
.05
.04
.05
.02 .02
.02
.03
.04
.05
.04
31
.06
.02
.03
.04
.05
.04
31
.06
.04
.04
.05
.02
.04
1 1-12
.05
.04
.03
.06
.05
.04
.04
.05
.03
.05
.06
.05
.04
.04
.04
.04
.03
.04
.04
.04
.05
.03
.04
.03 .03
.04 .04
.05; .05
.02 .02
.02 .02
.03 .03
.04! .04
.04
.04
31
.06
.04
.04
31
.06

MEAN
.058
.049
.034
.036
.055
.041
.045
.050
.046
.043
.057
.070
.042
.045
.044
.048
.031
.037
.038
.037
.054
.035
.039
.038
.037
.042
.028
.022
.028
.041
.051
.043

.070
NO.
OF
HRS.
?•
21
21
2-
22
22
22

22
23
2?
22
2;
21
23
22
23
23
22
22
22
23
23
23
23
23
23
20
23
23
21

696


MAX.
.08
.06
.05
.06
.07
.05
.07
.07
.06
.07
.08
.15
.05
.06
.06
.07
.04
.05
.05
.05
.07
.05
.07
.05
.05
.05
.04
.03
.05
.06
.08


.15
CO
         * Indicates Saturday or Sunday
           Local standard time used
                                                                TABULATED   WED..  SEP.  10,  1969

-------
en
c
        CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratory of Engineering and Physical Sciences
Division ot Air Pollution, Public Health Service
U. S. Department of Health. Education, and Wellare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                 Table 3-35

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
               COLORIMETRIC  ANALYSIS
     CHICAGO,ILL.
NITROGEN DIOXIDE
         NOV.  1968
DAY
MONTH
2.
3«
4
5
6
7
8
9«
10«
U
12
13
14
15
16«
17«
IB
19
20

21
22
23«
24*
25
26
27
28
29
30«

MEAN
NO.
MAX.

12-1
.04
:o3
.02
.03
.04
.04
.03
.03
.04
.04
.05
.04
.04
.04
.04
.04
.03
.03
.03
.04

.03-




.03
.03
.03
.02^
.03

.03
26
.05

1-2
.0!
.03
.02
.02
.04
.04
.03
.03
.03
.04
.04
i.04
.03
.04
.03
.03
.03
.03
.03
.03

.03




.03
.03
.03
.02
.03

.03
26
.04

2-3
.03
.03
.03
.02
.04
.03
.03
.03
.03
.0*
.04
.04
.03
.04
.03
.03

.03
.03
.03

.03




.03
.03
.03
.02
.03

.03
25
.04

3-4
.03
.03
.02
.02
.04
.03
.02
.03
.03
.04
.04
.03
.03
.04
.03
.03

.03
.03
.03

.02




.03
.03
.02
.02
.03

.03
25
.04

4.5
.03
.03
.02
.02
.04
.03
.02
.03
• 
.04
.03
.04
.04

.04
28
.08

1 1-12
.03
.03
.03
.04
.04
.04
.04
.04
.04
.04
.04

.08
.06
.04
.03
.03
.04
.04
.03

.04
.10

.04
.05
.05
.04
.03
.04
.04

.04
28
.10

12-1
.Of
.03
.03
.Ot
.0!
.04
.0<
.04
.0!
.04
.0!

.07
.06
.05
.04
.04
.03
.04!
.03

.04
.1C

.04
.03
.0!
.04
.03
.04
.04

.04
28
.10

1-2
.0!
.03
.02
.0<
.0!
,04
.04
.04
.04
.04
.04
.05
.07
.05
.05
.04
.04

.04!
.03

.04
.07

.03
.04

.04
.03
.04
.04

.04
27
.07

2-3



































3-4
.0!
.03
.03
















.03







.04

.03
.03


7
.05

4-5
.0!
.04
.0'
.0<
.0!
.Ot
.Ot
.Ot
.Ot
.04
.04
.04
.0!
.0!
.0!
.03
.03
.03
.04
.03




.03
.04
.04
.04
.02
.04
.03

.04
27
.05
p
5-6
.05
.04
.03
.04
.05
.04
.04
.04
.04
.04
.04
.04
.05
.05
.05
.03
.03
.03
.04
.03


.04

.03
.04
.04
.05
.02
.04
.03

.04
28
.05
M.
6-7
.0!
.0<
.03
.0<
.0!
.04
.Ot
.04
.0<
.04
.ot
.ot
.04
.05
.05
.03
.03
.03
.04
.03


.03

.04
.04
.03
.04
.03
.04
.04

.04
28
.05

7-8
.0'
.03
.03
.0'
.0<
.04
.03
.04
.04
.04
.04
.04
.04
.05
.05
.03
.03
.03
.04
.03


.03

.03
.04
.03
.04
.03
.04
.04

.04
28
.05

8-9
.04
.03
.0'
.Ot
,0t
.04
.01
.04
.04
.04
.04
.04
.04
.04
.05
.03
.03
.03
.041
.03


.03

.03
.04
.03
.03
.03
.04
.04

.04
28
.05

9-1O
.04
.03
.0'
.0'
.04
.04
.03
.04
.0<
.0!
.04
.04
.05
.04
.05
.03
.03
.03
.04
.03


.04

.03
.04
.03
.03
.03
.03
.04

.04
28
.05

10-11
.03
.O;
.0'
.Ot
.03
.n1
.03
.04
.0<
.05
.04
.04
.04
.04
.05
.03
.03
.03
.04
.03


.04

.02
.04
.01
.03
.03
.03
.04

.03
28
.05

1 1-12
.03
.02
.03
.04
.03
.03
.03
.04
.04
.05
.04
.04
.04
.04
.04
.03
.03
.03
.04
.03


.04

.02
.04
.03
.03
.02
.03
.04

.03
28
.05

MEAN
.036
.030
.026
.034
.042
,037
.032
.036
.037
.041
.040
.039
.050
.044
.041
.032
.031
.029
.036
.031

.030
.049

.028
.035
.036
.035
.027
.031
.034

.035

.050
NO.
OF
HRS.
2:
2:
2-
21
22
??
22
2<
22
22
22
2r
22
22
22
22
17
21
22
23

14
15

16
18
21
23
22
23
23


610


MAX.
.06
.04
.03
.05
.05
.04
.04
.05
.05
.05
.05
.05
.08
.07
.05
.04
.04
.04
.05
.04

.04
.11

.04
.05
.05
.05
.03
.04
.04



.11
          * Indicates Saturday or Sunday
           Local standard time used
                                                                                                                   TABULATED
                                                                                                                               MED..  SEP. 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory ol Engineering and Physical Sciences
Division of Aii Pollution, Public Health Service
U. S. Department of Health, Education, and Welfare

Robert A. Tail Sanitary Engineering Center
Cincinnati. Dhio 45226
                                                                    Table 3-36

                                                             HOURLY AVERAGES OF
                                                  GASEOUS POLLUTANT CONCENTRATIONS
                                                                CONCENTRATION IN PPM
                                                                  COLORIMETRIC  ANALYSIS
     CHICAGO.ILL.
NITROGEN DIOXIDE
         DEC.  1968
DAY
MONTH
r
3
4
5
6
7«
8«
9
10
11
12
13
14«
15«
16
17
18
19
20
21«
22«
23
24
25
26
27
28«
29«
30
31
MEAN
NO.
MAX.
A.M.
12-1
.0*
^02







1-2
.04
.03







i
.04
.06, .0!
.0?l .04
.04 .04
.05. .05
tOS .05
M .06
-.041 .04
.031 .04
.0*1 .04
.0*; .09
.03 .03,
.04 .04
.oi
.05






.04
16
.06
.04
.05





.03
.04
18
.06
2-3
.03
.03








.09
3-4
.04
.03








• 04;
.051. .05
.03J .02
.04 .041
.05
.0!
.0!
.04
.04
.0!
.06
.04
.04! .04
.04 .04
.05J .05
.03 .03
.04
.04
.04





.03
.04
18
.05
.03
.04
.04





.03
.04
18
.06
4.5
.03
.03








.04
.0?
5-6
.03
.02








.04
.05
.02 .02
.04 .04
.0-<
.05
.06
.04
.04
.04
.04
.05
.05
.06
.03
.05
.04
.04
.03 .03
.o*J .0*
.04) .04
.04! .04




i


.03J .02
.04! .04
18 i 18
.Oq .06
6-7
.03
.02








.05
.06
• 02
7-8
• o;
.o2








.05
.06
.03
.04j .05
. .OS .05
8-9
.03
.03








.05
.06
.03
.05
.05
.09 .05 .06
.07
.03
.04
9-1O
.03
.0!








.06
.06
.03
.05
.05
.06
.07; .061 .05
.04 .04J .04
1O-1 1
.03
.04








.06

.03
.0!
.0!
.06
.06
.04
.041 .05, .051 .09
.04, .0*; .05
.OS .05 .05
.031 .03 .03
.0* .04 .0*
.04
.05





.03
.05 .OS
.05 .05




1


.03
.04| .04
18 18
.07 .07

.03
.04
1R
.06
.05
.05
.05| .05
•OJ .03
.051, .05
.09 .05
.051 .05







.03

.03
.05 .05
IB
.06
17
.06
1 1-12
.03
.03








.07
.06
.03
.05
.05
.06
.06
.04
.04
.05
.05
.03
.05
.05
.05





.03
.05
18
.07
P.M.
12-1
.03
.03








.01
.06
.03
.05
.05
.06
.08
.041
.04]
.05
.0!
.04
.05
.05
.05





.03
.0!
18
.08
1-2
.03
.03








.07
.06
.03
.0!
.05
.Ot
.07
.03
.04)
.05
.04
.04
.04
.05
.05





.04
.05
18
.07
2-3
















.03














1
.03
3-4
.02








.0?
.05
.0!
.0!
.05
.Ot
.06


.0!
.04
.04
.05
.05
.04





.03

15
.08
4-5
.03
.04








.01
.05
.0«
.06
.0!
.06
.06
.04
.03
.05
.04
.04
.0-:
.05
.04





.04
.05
18
.07
5-6
.03
.04








.07
.06
.05
.05
.05
.06
.06
.04
.04
.05
.03
.04
.05
.06
.04





.04
.05
18
.07
6-7
.03
.04








.01
.Ot
.04
.05
.05
.04
.04
.04
.04
.05
.04
.04
.05
.05
.07





.03
.05
18
.07
7-8
.02
.0*








.01
.05
.04
.05
.05
.05
.06
.04
.04
.05
.04
.03
.OS
.05
.08





.03
.05
IB
.06
8-9
.02
.02








.06
.05
.04
.05
.05
.05
.05
.04
.041
.04
.04
•
-------
en
to
       CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45226
                 Table 3-37

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
      JAN.  1968
DAY
MONTH
i
2
3
4
5

6*
7*
8
9
10
11
12
13*
14*
15

16
17
18
19
20*
21*
22
23
24
25
26
27*
28*
29
30
31
MEAN
NO
MAX.

12-1
•iS
.36
.2C
.18
.20

.28
.20
.23
.2C
1-2
.21
.33
.IE
.18
.21

.28
.11
,3C
.11
.32 .36
.06 .04
.10 . 11
.05 .08
.14 .1!
.16 .16

.38 .28
.31 .32
.31 .32
.08 .10
.18 .19
,u; .is
.24 .33
.18! .22
.33
.28
.34
.08
.271
.13


.21
29
.38
.32
.34
.23
.08
.24
.12


.21
29
.36
2-3
.2C
.38
.19
.12
.34

.28
. 19
.3B
.15
.37
3-4
.2!
.33
.14
.16
.46


.17
.44
.16
4-5
.38
.39
.16
.2-i
• in

A.M.
5-6
.*0
.46
.18
.32
.21

• 39J .46
.15
.16
.45 .45
.31 .37
.51 .57 .51
.041 .06 .051 .07
.11, .131, .10 .14
.09 .llj .If
.11 .10 .15
.13
• 1^
.17 .17. .211 .37

.4* .421
.
.48
.25 .32 .39
.65
,43
.35 .33] .33, .40
,iq .iq .11! .17
.21 .25
.-18 .21
.20
.30
.32 .33 .31
.21 .19 .27
,34| .30 .30
.32 .40
.15
.17| .21 .26
.10, .10 .14
.37 .52 .22
.12; .17 .24


.23
29
•*3


.25
29
.52


.26
29
.57
.33
.29
.30
.32
.30
.20
.33
.12
.22
.36


.30
29
.65
6-7
.41
.4!
.16
.25
.25

.4-
.17
.51
7-8
.4-;
.44
.20
. IS
.2C

.44

8-9
.34
.41
.2C
.11
.18

.46
.181 .18
q-io
.18

.18
.15
.25

.56

1O-I 1
.2.1

.2!
.IS
.59

.58
.HI .11
.61 .51 .421
.34 .431 .331 .33 .21
.50 .63 i
.08
.17
.15
.li; .12 .09

.08
.20 >2P .20 .25
.13
.16 ,ie
.19 .14, .12
1 1-12
.14
.12
.20
.13
.43

.50
.15
.29
.23
.10
.08
.27
.12
.18 .19 .11 .15
.29 .23 .20 .221 .27
. .
.74
.57
.49
.15
.46,
.2*
.35
.36
.42
.20
.35
.09
.221
.55>


.33j
29
.74
.61
.64
.53



.47 ,63| .77
.44{ .69 .82
.451 .40 .36
.201 .22 .27 .25
.51
.20
.50
.33
.33
.23
.40
.10
.20
.44


.34
29
-
.49
.21
.58
.54
.15 .14
.54 .38 .51
.33! .35! .19
.34 .28
.30
.27
.33, .31
.22 .27
.30
.27
.36
.21
.25 .22 .2C
.45


.31
28
.54
.71


.47


.32! .33
27
26
.71 .82

.48
.45
.43
.45
.76
.09
.48
.25
.24
.21
.49
.14
.18
.41


.28
28
.76
P.M.
12-1
.1!
.1!
.2'
.1!
«2E

.43
, If
,3<
.1!
.1C
.1C
.23
.12
.14
.33

.34
.42
,41
.79
.50
.16
.37
.271
1-2
.16
.40
.21
.12
.21

.31
.24
.2'
.18
.11
.0«
.15
.15
.li
.41

.4!
,6E
.42
2-3
.If

.21
.15
.2C

.2S
.21
.25
.22
.11
.0«
.06
.It
.n
.3C

.54
.7C
.44
.60 .69
.6C
.181

.24
.19 .14
.19
.32
.19
.23
.29


.27
29
.75
.18
.20
.16
.07
.41


.27
28
.68
.50
.1C
.25
.22
.1C
.14
.15
.15

.19


.25
28
.70
3-4
.18
.41
.46
.12
.22

.29
.23
.23
.23
.12
.01
.05
.11
.19
.28

.43
.53
.35
.50
.29
.06
.29
.22
.11
.19
.14
.18




.24
27
.53
4-5
.20
.4]
.2f
.1'
.3!

.21
.24
.31
.21
.11
.06
.10
.18
.11
.25

.29
.46
.51
.45
.40
.04
.26
.24
.14
.16
.10
.23




.24
27
.51
5-6
.20
.40
.26
.13
.37

.28
.22
.45
.32
.12
.06
.09
.21
.16
.24

.25
.68
.33
.40
.32
.09
.27
.23
.15
.12
.07
.20




.24
27
.68
6-7
.18
.31
.26
.12
.42

.2<
.3C

.24
.1C
.05
• 1?
.18
.16
.21

.42
.72
.22
.37
.20
.22
.29

.17
.18
.08
.29




.25
27
.72
7-8
.If

«2(
.!<
.3E

.21
.1?
.2'
. 1<
.01
.05
.OS
• 1<
. 1?
.72

.41
.4C
•22
.30
.21
.79
.71

.15
.18
.1C
.26




.22
27
.47
8-9
.!<
.42
.2-
.12


.3f
.1!

.11

.0!
.1!
.1!
.If
.31

.64
.6C
.22
9-IO
.15
.26
.30
.If


.21
.If
.26
.26
.oe
.ot
.13
.14
.14
.3fl

.45
.70
.21
.5«j .60
.201 .18
.33 .27
.241 .22
.31 .32
.l«j .30

.19
.09 .10
.3l! .38




.26
27
.64




.26
27
.70
10-1 1
.74
.22
.28
• 2(
.21

.77
.19
.23
.28
.0!
.06
.14
ill
.14
.37

.54
.51
.21
.63
.13
.26
1 1-12
.32
.20
.27
.14
.33

.19
.21
.25
.31
.05
.10
.08
.17
.15
.38

.29
.28
.20
.25
.17
.23
.20 .17
.31 .31
.31 .28
.20 .21
.09 .09
.44 .33
.22! .18



.25
28
.'63



.22
28
.38

MEAN
.238
.339
.227
.164
.321

.347
.192
.353
.250
.234
.072
.141
.139
.157
.267

.476
.512
.351
.345
.349
.191
.320
.265
.247
.219
.221
.198
.237
.336


.235

.512
NO.
OF
MRS.
2<
2<
74
24
24

24
7,4
23
24
21
24
2<
24
2<
71

24
24
24
24
24
24
2'

24
24
24
24
16
i;



671


MAX,
.61
.58
.55
.39
.81

.64
.40
.75
.50
.70
.19
.31
.22
.22
.48

1.33
.90
.67
1.13
1.02
.39
.76
.51
.49
.64
.71
.54
.68
.79




1.33
        * Indicates Saturday or Sunday
          Local standard time used
                                                                                                                     TABULATED   WED.t  SEP,  10,  1969

-------
        CONTINUOUS MR MONITORING PROGRAM
       Ait Quality Section, Laboratory of Engineering and Physical Sciences
       Division ol Air Pollution, Public Health Service
       U. S. Department ol Health. Education, and Welfare

       Robert A. Taft Sanitary Engineering Center
       Cincinnati. Ohio 45226
                                                                    Table 3-38
                                                             HOURLY AVERAGES OF
                                                  GASEOUS POLLUTANT CONCENTRATIONS
                                                               CONCENTRATION IN PPM
                                                                CONDUCTOMETRIC ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
      FEB.  1968
DAY
MONTH
1
2
3«
4«
5
6
7
8
9
10«
11*
12
13
14
15
16
17*
18*
19
20
21
22
23
24«
25«
26
27
28
29

MEAN
NO.
MAX.

12-1





.86
.1*
.3<
.12
.25
.27
.24,
.29
.17
.22
.21
.12
.IS

.27
.33
.24
.22
.12
.13
.11
.24
.17
.38

.24
23
.86

1-2





.73
.17
.**
.1!
.25
.24
.23
.33
.1!
.26
.2C
.12
.12

.32
.33!
.24
.23
.1C
.15
.1C
.16
.H
.36

.24
23
.73

2-3





.72
.It
.33
.22
'21
.23
.24
.33
.12
.22
.26
.11
.13

.25
.31
.23
.31
.12
.15

.15
.16
.30

.24
22
.72

3-4





.63
.16
.28
.2!
.22
•2i
.26
.26
.14
.17
.34
.17
• 1<

.23
.32
.21
.35
.14
.15

.22
.15
.34

.24
22
.63

4-5





.47
.29
.29
.28
.23
•2Z|
.29
.29
.!«
.19
.41
.It.
.16
.3?
.27
.31
.33
t*l
.21
.14

.2R
.19
.35

.28
23
.47
A
5-6





.40
.37
.34
.33
.26
.20
.29
.39
.19
.21
.41
.15
.19

.33
.33
.35
.40
.11
.12

.31
.29
.35

.29
22
.41
M.
6-7





.62
.29
.32
.4C
.27
.21
.30
.48
.21
.23
.42
.15
.22

.41
.35
.28
.36
.04
.12

.32
.30
.36

.30
22
.62

7-8





.6<
.21
.29
.40
.27
.16
.31
.42
.22
.23
.47^
.16
.22

.46
.25
.26
.33
.09
.19

.27
.31
.39

.30
22
.6*

8-9





.57
.25
.32
.38
.27
.16
.3C
.42
.2«
.24
.sJ
.16
.IE

.4?
.21
.35
.43
.15


.24
.38
.40

.30
21
.57

P- 10





.38

.34
.32
.29
.14
.27

.29
.19
.66
.14
.17

.41
.18
.27
.56
.09


.16

.40

.29
18
.66

10-11





.31

.21
.34
.23
. If
.32

.29
.2C
.66
.13
.12

.42
.2r
.22
.44
.ir


.17

.41

.21
18
.66

1 1-12





.28

.20
.28
.26
.23
.30
.20
.31
.16
.46
.14
.11

.33
.20
.17
.38
.11
.12

.20

.36

.24
20
.46

12-1





.71


.29
.27
.17
,2t
.21
.21
.1!
.31
.19
.11
.31
.30
.16
.IE
.29
.11
.08
.46

.26


.26
20
.71

1-2





.5C
.3«

.20
.25
.15
.24

.!<;
.19
.32
.17
.13
.32
.31
.16
.14

.12
.06
.56
.20
.28


.24
20
.56

2-3





.54
.38

.3C
.22
.12
.21
.28
.22
.13
.23
.13
.12
.41
.29
.It
.17

.14
.08
.53
,2C
.32
.35

.25
22
.56

3-4





.4C
.39

.2«
.23
.13
.22
.21
.21
.15
.09
.1!
.11
.41
.22
.17
.14

.15
.06
.67
.2C
.29
.31

.23
22
.67

4-5





.3!
.33
.22
.3C
.23
.12
.2C
.22
.24
.15
.1C
.12
.11
.4C
.2!
.27
.If

.U
.08
.69
.23
.25
.39

.24
23
.69
P.
5-6





.37
.27
.19
.28
.28
.13
.17
.19
.24
.12
.10
.12
.13
.24
.36
.21
.15
.17
.17
.07
.41
.26
.24
.31

.22
24
.41
M.
6-7





.15
.31
.22
.25
.28
.13
.17
.1?
.2«
.12
.1C
.12
.12
.3C
.31
.22
.16
.IS
.IS
.05
.25
.22
.2£
.29

.20
24
.31

7-8





.1C
.3<
.2(
.35
.29
.11
.17
.26
.?<
.17
.1C
.11
.!<
.2'.
.33
.?•>
.18
.15
.71
.04
.24
.72
.25
.31

.21
24
.35

8-9





.11
.21
.22
.32
.33
.15
.2C
.U
.26
.21
.1C
.1C
.15
.291
.34
.7-5
.19
.16
.16
.03
.25
.in
.35
.35

.22
24
.36

9-10





.2<
.26
.21
.32
.33
.1C
.2!
.ie
.22
.23
.OS
.12
.n
.2<
.33
.?(
.21
.11
.11
.12
.25
.13
.23^
.21

.22
24
.33

10-1 1





.17
.34
.23
.30
,2<,
.Ifl
.29
.17
.25
.22
.10
.13
.2C
.34
.34
.19
.20
.16
.17
.13
.21
.17
.22
.23

.22
24
.34

1 1-12





.16
.33
.19
.27
.2fl
.21
.30
.15
.18
.25
.11
.13
.27
.31
.32
.19
.17
.12
.16
.12
.22
.16
.33
.22

.21
24
.33

MEAN





.436
.282
.269
.290
.263
.176
.251
.272
.219
.191
.275
.136
.153
.330
.327
.237
.218
.291
.136
. 1
-------
CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section. Laboralory ol Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Tail Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-39

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
     MARCH 1968
DAY
MONTH
1
2«
3*
4
5
6
7
8
9«
11
12
13
14
15

16*
17*
18
19
20
21
22
23«
24«
25
26
27
28
29
30*
31*
MEAN

MAX.
A.M.
12-1
.22
.11
.38
.32
.52
.14
.04
.21
.38,



.2!e

.39
1-2

.12
.3!
.31
.58
.13
.04
.25
.19



.34

.15
.18; .14
.09! .08
.07
.02
.05!
.H
.16
.19
.25
.14
.14
.08
.30
.39
.07
.20
26
.52
.07,
.06
.04
.15
.16
.18
.29
.06
.11
.08
.08
.41
.12
.18
25
.58
2-3
.3C
.11
.21
.2?
,6C
.1C
.0'
.3C
*1J



.461

.18
3-4
.42
.12
.21
.21
,4S

.0(1
.32
.11



.531

.35
.llj .32
.091 .08
.131 .07
.06 .09
.04J .03
.IBj .20
.19] .17
.18
.31
.12
.09
.09
.08
.41
.22
.20
26
.60
.18
.26
.10,
.10
.09
.24
.27
.12
.21
26
.53
4-5
.42
.20
.26
• 3(
.5!
.14
.18
.29
.14
5-6
.42
.23
.28
.39
.58
.22
.25
.32
.11



.51



.55

.39i -.20
.32 .19
.od .13
.07J .09
.OBJ .11
.05' .08
.241 .30
.17 .18
.19, .18
.24
.21
.11
.15
.33
.29
.18
.17
.121 .08
.17
.17
.22
26
.53
.15
.10
.23
26
.58
6-7
.34
.2!
.27
.31
.44
.24
.31
,4<
.15



.61

7-8
.4C
.26
.22
.3'
.39
.24
.3S
.44
.14



.57
8-9
.5i
.26
.19
.2!
.56
.24
.51
.31
.14



.31
9.10
.4C
.27
.IS
,2f
.24
.23
«5(
.27
.16




1
,33| .41 .42J .42
10-11
.34
.21
.13
.22
,31
.11
.41
.21
.1!



.42


.13 .11; .151 .26 .32
.17, .20 .18 .12 .06
.081 .11 .12
.14| .12 .13
.ll! .08 .07,
.34 .35 .31
.21 .21 .2C
.1^ .111
.11 .09
.09, .08
.25
.16 .1!
.20! .20 .19 .13 .16
.65
.18
.10
.19
.16
.21
.12
.26
26
.65
.65 .50
.35! .44
.10 .10
.18 .37
.14 .11
.20
.04
.26
26
.65
.12
.00
.26
26
.58
.25
.60
.17
.08,
.11
.76

.02
.031 ,OC
.07J .02
.01
.22
25
.60
.01
.2C
23
.76
1 1-12
.37
.29
.12
.19
.29
.15
.37
.15
.14



.39

.35
.18

.28
.07
.11

.17
.15
.23
.32

.14
.01
.00
.00
.19
23
.39
P.M.
12-1
.6C
.31
.11

.21
.11
.26
.1:
.14





.24
.10

.19
.17,

.17
.11
.18
.12

.14
.OC
.00
.01
.16
21
.68
1-2
.42
.28
.12
.1'
.24
.18
.24
.07
.16





.15
.07

.16
.05

.13
.15
.10
.13
.01
.01
.07
.01
.12
.01
.13
23
.42
2-3
.42
.21
.11
.1:
.2!
.11

.12






.08
.06

.16
.05
.191
.16
.2C
.11
.10
.02
.OC
.04,
.01
.03
.01
.12
23
.42
3-4
• 4(
.21
.OC
.1!
.22
.1!

.11
.09



.06

.07
.06

.13
.04
.16
.17
.15
.14
.26
.04
.01
.11
.01
.00
.02
.12
24
.40
4-5
.21
.2!
.1C
.14
.22
.11
.1C
.!<
.0<



.IS

.13
.07
.03
.1C
.08
.21
.2C
.14
.18
.18
.03
.03
.IS
.01
.00
.02
.13
26
.27
5-6
.21
.23
.10
.12
.33
.19
.09
.07
.07



.14

.11
.07
.07
.09
.09
.19
.17
.12
.21
.12
.06
.01
.30
.01
.00
.02
.12
26
.33
6-7
t 1
. 1C
.14
.11

.1C
.11
.OC
.01



.11

.OS
.OS
.OC
.09
.13
.14
.14
.13
.2C
.08
.12
.04
.25
.01
.00
.03
.12
26
.29
7-8
.11

.11
.21
.11
.16
.11
.06
.OC



.24

.14
.14
.OS
.3C
.08
.12
.17
.15
.23
.18
.15
.05
.11
.OC
.01
.03
.14
26
.30
8-9
.11
.11
.23

.1!

.12
.OC
.01



.21

.15
.13
.OC
.20
.04
.If)
.18
.14
.21
.11
.OB
.27
.19
.01
.01
.07
.15
26
.40
9-1O
.2<
.2C
.1C

.16
.OC
.1!
.12
.06



.21

.16
.12
.01
.IS
.04
.22
.IS
.15
.21
.05
.15
.17
.25
.01
.02
.02
.15
26
.44
10-11
• 2<
.2;
.1'

.14
.04
.16
.31
.Of



.3C

.17
.12
.01
.11
.04
.??
.IS
.n
.23
.05
1 1-12
.23
.32
.27
.56
.13
.03
.18
.35
.08



.47

.18
.13
.07
.03
.05
.14
.20
.15
.22
.12
.131 .16
.24 .09
.16J .24
.04) .19
.00
.OS
.16
26
.59
.02
.05
.18
26
.56

MEAN
.350
.224
.196
.285
.340
.156
.216
.221
.129



.355

.229
.148
.098
.130
.075
.120
.208
.162
.177
.234
.193
.099
.154
.071
.109
.055
.182

.355
NO.
OF
HR5.
23
2<
24
24
24
24
2i
24




2C

23
24
j^
24
23
23
21
24
24
24
24
21
24
24
24
24

603


MAX.
.88
.40
.46
.68
.90
.30
.86
.50
.49



.81

.78
.52
.22
.47
.21
.29
.38
.26
.27
.78
.87
.36
.49
.47
1.09
.29


1.09
  * Indicates Saturday or Sunday
    Local standard time used
                                                                   ATED   WED..  SEP.  10.  1969

-------
       CONTINUOUS AIR MONITORING PROGRAM
       Aif Quality Section, Laboratory of Engineering and Physical Sciences
       Division ot Air Pollution, Public Health Service
       U. S. Department of Health. Education, and Welfare

       Robert A. Tall Sanitary Engineering Center
       Cincinnati. Ohio 45226
                  Table 3-40

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAGO,ILL.
SULFUR  DIOXIDE
     APRIL  1968
DAY
MONTH
1
2
3
4
5
6*
7*
8
9
10
11
12
13*
14*
15

16
17
18
19
20*

21*
22
23
24
25
26
27*
28*
29
30

MEAN
NO.
MAX.

12-1
,04
.1C
.07
.04
.11
.49
.07
.24
.03

1-2

.K
.06
.0!
.16
.23
.OS
.18
.01
.10 .07
.03 ,l«j
.27 .37
.21
.21
.03 .02
.04 .05


.07 .07^
2-3
.06
.11
.05
.23
.17
.20
.07
.21
.06
3-4
.01
.OS
.06
.17
.18
.44
.06
.22
.OS
.06 .Ot
.osj .os1
4-5
.On
.13
.0!
.IS
.21
A.M.
5-6
.12
.a
.05
.14
.21
.301 .28
.10 .11
.161 .20
• OS
.11
.!»
.09
.Ofl! .12
.34j .291 .29
.09 .09, .10 .12
.03 .02 ,02| .02
.07 .oeJ .00; .12
| 1

.or ,oa' .07 .11
.03 .04 ,04j .06, .12 .13
.04 .04 .041 .041 .05, .08
.03 ,03| .031 .03) .04j .05
.02 .02, .02, .02 .01

!
.04 .04







.02

.10
22
,4<3









.10
20

.041 ,06
i



.05



! ;







.10 .11
21
.34
21
.44



.03

.05







.03 .17
1


.ll! .12
22
.30
21
.28
6-7
.07
.24
• 0<
.21
.2C
.35
.10
.28
.19
.14
.13
7-8
.07
. 1<
.05
.12
.16
.30
.10
.26
.12
8-9
,ot
. 12
.08
.2S
.14
.12
.08
.22
9-10
.03
.13
.OS
.19
.11
.1C
.06
.15
10-11
.02
.OS
.OS

.1C
,0i
.05
.02
.Od .04 .OC
.191 .1]
.44) .37
.45 .37
.OT! .03
.03j .03
.28
.05
.03
.10
.32
.19
.05
.031
.14j .IT1 .121 .IS
1 ! !
.07
.2?
1 1-12
.01
.05
.13

.12
.08
.04
.04
.02
.06
.22
.25 .27
.04 .02
.08
.23

.11 .10 .081 .06 .05
.13 .10 .09 .07, .06
.08 .11 .10 .07. .07
.07, .09 .08| .Of,
.03 .0' .09 .09 .08
,
.06| .07 .05



• i
i






.23, .17


.15 .15
22 22
.45! .**
.06

.12
22
.37

.06 .04


i

I
i

.06

.10
22
.32
.01
.03

.08
21
.28
.11


.04
.06
.05
.05
.06

.03






.02
.01

.07
21
.27
P.M.
12-1
.05
.03
.01
.IS
.11
.01
.04
.05
.02
.03
.13
,25
.03
.02


.03
.05
.05
.07
.03

.03






.02J
.01

.06
22
.25
1-2
.06
.03
.OS
.OS
.01
.01
.04
.05
.03
.03
.06
.31
.Oi
.02
.IS

.03
.06
.05
.10
.15

.03






.04
.02

.07
23
.31
2-3
.Of
.05
.Ot
.1C
.06
.Of
.03
.09
.06
.01
.08
.31
.06
.02


.03
.06
.07
.09
.12

.02






.03
.01

.07
22
.31
3-4
.14
.Ot
.Ot
.06
.Ot
.06
.03
.01
.03
.03
.01
.26
.02
.02


.03
.12
.05
.09
.07

.02






.01
.02

.06
22
.26
4-5
.P
.06
.05
.1C
.04
.0!
.03
.0!
.02
.02
.02
.42
.0'
.02
.06

.05
.01
.05
.07
.06

.03






.01
.02

.07
23
.42
5-6
.05
.05
.05
.12
i03
.04
.03
.08
.04
.04
.02
.23
.03
.03
.04

.08
.05
.04
.08
.25

.02






.01
.01

.06
23
.25
6-7
.03

.04
.IS
.0*
.05
.03
.01
.06
.02
.02

.04
.03
.04

.2C
.05
.04
.04
.34

.02






.02
.01

.07
23
.34
7-8
.04
.01
.04
.72
.04
.01
.03
.13
.1C
.03
.03
.OC
.02
.03
.051

.11
.04
.04
.04
.10

.02






.26
.01

.07
23
.28
8-9
.01
.Of
.02
• i{
.ot
.11
.03
. P
.15
.04
.OC
.OC
.0-
.03
.08

.07
.05
.05
9-10
.IF
.Ot
.02
.IS
.01
.11
.1C
.12
.1C
.04
.04
.OC
.0'
.02
.07

.05
.05
10-11
.10
.0!
.04
.16
.10
.on
.06
.13
.'09
.03
.11
.00
.01
.03
.08

.06
.04
1 1-12
.10
.08
.05
.16
.34
.07
.06
.09
.19
.00
.23
.08
.03
.03
.08

.07
.04
.05 .04> .03
.03 .02
.17, .15
1
.02 .03
1
1
[



.34
.01

.08
23
.34



.04
.01

.07
23
.19
.02 .02
.04 ,04

.02 .02




,
I
1
.04' .03



.06 .08
22 : 22
.16 .34

MEAN
.072
.091
.060
.154
.120
.158
.061
.136
.074
.061
.128
.232
.061
.030
.098

.071
.067
.054
,054
,086

.036






.064
.048

.088

.232
NO.
OF
HRS
2-
2'
24
2?

24
2<
24
24
24
24
23
24
24
2C

24
24
24
23
24

24






14
1<3


52f

5-M1N
MAX.
.24
.29
.16
.41
.59
.62
.14
.35
.32
.26
.60
.72
.29
.30
.32

.31
.17
.13
.12
,53

.08






.43
.27



.72
cn
en
         * Indicates Saturday or Sunday
           Local standard time used
                                                               TABULATED   WED.,  SEP.  10.  1969

-------
en
05
       CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section. Laboratory ol Engineering and Physical Sciences
Division of Air Pollution. Public Healtb Service
U. S. Department ol Health. Education, and Welfare

Robert A. Tail Sanitary Engineering Center
Cincinnati. Ohio 45226
                   Table 3-41

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONOUCTOMETRIC ANALYSIS
  CmCAGOtlLL.
SULFUR  DIOXIDE
            1968
DAY
MONTH
I
2
3
4«
5«
6
7
8
9
10
11«
12«
13
14
15
16
17
18«
19*
20
21
22
23
24
25«

26«
27
28
29
30

31
MEAN
NO
MAX.

12-1







.02
.1C
1-2





.05

.02
.10
.00 .01
.00 .00
.01 .01
.03 .0}
.oc
.08| .04
.01 .01
.01; .01
.091 .01
.061 .12
.02 .02
.07 .07
.18 .17
.05 .04
.01 .01
.01 .01
i
.01 .01
.01
.02
.01
.01

.06
.04
23
.18
.03
.02
.05
.01

.05
.04
25
.17
2-3

.01



.17

.01
.05
.01
.00
3-4

.02



.15
.01
.01
.01
4-5
.01
.11



.14
.04;
A.M
5-6
.03
.!>0



.32
.04
.15 .17
.01
.02 .01
.01
.01
.Ol' .01 .01
.00 .00 .00
.00
,OZ .041 .02J .01
.01 .01 .06
.09 .09 .07
.01 .Oil .01
.01. .01
.01
.01
.17
.01
.03
.06; .01 .03 .03
.20 .131 .08
.03 .03, .06
.08. .08 .1?
.23! .16 .17
.02, .01 .03
.11

.24
.30
.02
.01; .01 .01; .02
.00 .01 .02


.00 .01 .01
.06] .07
.01 .01
.07
.01

.03
.05
26
.23
.08
.01

.07
.04
27
.16
.Of?
.03
.02
.01

.06
.05
28
.17
.01

.01
.13
.05
.07
.01

.09
.09
27
.50
5-7
.05
.30



.17
•l\
.ii
.oc
.01
.01
.01
.01
.01

7-8
•05
.13



.06
.11
.!<
.oc
8-9
.04
.!
-------
       CONTINUOUS AIR MONITORING PROGRAM
       Air Quality Section. Laboratory ol Engineering and Physical Sciences
       Division of Air Pollution, Public Health Service
       U. S. Depaitment of Health. Education, and Welfare

       Robert A. Taft Sanitary Engineering Center
       Cincinnati. Ohio 45226
                   Table 3-42

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAG3.ILL.

SULFUR  DIOXIDE
      JUNE  1968
DAY
MONTH
i«
2*
3
4
5
6
7
8*
9«
10
11
12
13
14
15«
16«
17
18
19
20
21
22*
23*
24
25

26
27
28
29*
30*


MEAN
NO.
MAX.
A.M.
12-1
.04
:o3
.01
•°'
.03
.03
.08
.07
1-2
.04
:o2
.04
.01
.04
.04
.1C
.OS
.03 .OP
.01 .01
.01 ,02j
.01
.01
.01,
.03 .04
.01 .00

.01
.06! .03
.03) .02
.01 .02
.02 .03
.00 ,OC
.00 .00

.02 .01


.02 .02

l






.02 .03
24 22
.08 .10
2-3
.03
.01
.02
.0«
.0*
.OE
.!«
.13

.01
.01

3-4
.02
.01
.12
.02
.05
.03
.11
.06
.13

.01
.01

.03 .04
.OOJ .02
i
I
.031 .01
.02! .02
.03, .07
.02J .02


.01
.02


.01

.03
.06
.01


.01
1




.04
19
.14




.04
21
.13
4.5
.01
.01
.IS
.01
.04
5-6
.02
.01
.26
.01
.12
.04 .04
.12 .15
,07| .06
.llj .08
.01! .03
.01,
.of
.01
.04
.02

.00
.00
.05
.01
.01
.04
.03

.02
.03
.04; .03
.101 .09
.04! .07
.01
.05j .04
.IP .12
.01; .01
!

.01
.01
.01
'




.04J .05
24 I 26
.14 .26
6-7
.02
.01
.2'.
.01
.12
.11
.26
.06
.06
.04
.09
.01
.01
.07
.02

.02
.01
7-8
.01
.02
.1C
.01
.1C
8-9
.02
.01
.0<
.01
.0?
.32 .22
.li .04
.12 .12
.031 .03
.03j .02
.11
.02
.01
.24
.02
.01
.02
.05
.02
.01
.14
.01
.01
.01
.02 .02
9-10
.03
.01
.02
.01
.0(
.16
.031
10-11
.0!
.01
.OC
.01

.03
.05 .04
.02 .03
.02
.02
.02
.01
.07
.01
.01
.01
.02
.04
.1C
.02

.06
.03
.02
.01
.0!
.04) .031 .02] ,03| .02;
.01, .03, .01
,03| .03) .06
.01 .02 .01
.04 .03 .03
.18 .04' .04
.04 .Ol .01



.01



.02
.02! .01
!

!
I
1
.061 .06
25 26
.29 .32


.04
27
.22
.01
.05
.01
.03
.04
.01


.03
.01
.02
.03
.OC

.03J .06
.021





.03
27
.16





.03
22
.10
1 1-12
.06
.01
.01
.12

.04
.04
.04
.03
.03
.02

.01
.01
.02
.01
.05
.01

.06
.01
.01
.03
.00

.07






.03
22
.12
P.M.
12-1
.03
.01
.02
.03
.OS
.0*
.03
.04
.04
.02
.02
.OC
.01
.01
.01
.01
.03
.02
.01
.04
.01
.03
.02
.01

.06






.02
25
.09
1-2
.02
.01
.02
.04
.OE
.05
.03
.03
.03
.01
.01
.OC
.02
.01
.02
.01
.03
.011
.01
.02
.01
.03
.02
.01

.03
.04





.02
26
.08
2-3
.01
.01
.OC
.03
.04
.05
.0<
.03
.03
.01
.01
.OC
.02
.01
.02
.01
.07
.03
.01
.05
.01
.05
.02
.03

.01
.05





.02
26
.07
3-4
.02
.01
.01
.02
.03
.05
.03
.03
.03
.01
.02
.01
.01
.01
.02
.01
.06
.02
.01
.03
.01
.02
.01
.01

.01
.04





.02
26
.06
4-5
.01
.01
,0(
.01
.04
.04
.02
.03
.03
.01
.01
.01
.01
.01
.01
.01
.08
.02
.01
.08
.01

.01
.01

.01
.03





.02
25
.08
5-6
.01
.01
.01
.00
.01
.04
.03
.02
.02
.03

.01
.01
.01

.02
.01
.05
.01
.01
.03
.00

.01
.01

.03
.02





.02
24
.05
.6-7
.01
.01
.01
.OC
.01
.02
.03
.02
.03
.02

.01
.02
.01

.02
.OC
.01
.01
.01
.03
.OC
.02
.01
.01

.04
.01





.02
25
.07
7-8
.01
.01
.01
.01
.0;
.02
.03
.02
.02
.02


.01
.01

.01
.01
.02
.01
.01
.04
.01
.05
.01
.01

.0'
.01





.02
24
.05
8-9
.01
.01
.01
.0;
.02
.03
.0;
.0«
.0<

.01
.01
.01
.01
.01
.01
.05
.01
.01
.04

9-10
.01
.01
.01
.02
.0!
.02
.02
.02
.0(
.01
.01
.0!
.01
.OC
.01
.02
.03
.01
.01
.04
.01
.07, .01
.03 .05
.01^ .01
|
.07 .01
.01





.02
24
.01





.02
26
.Oil .07
10-11
.02
.Of
.1C
.02
.07
1 1-12
.03
.01
.10
.02
.07
.02 .03
.02 .02
.011 .01
.OE
.01
.01
i03
.01
.01
.OC
.07
.02
.01
.04
.03
.03
.01
.01
.01
.08
.01
.00
.02
.02
.00

.01
.03
.01
.04
.01

.00
.02


.03 .03
.01 .01




1



.02 .02
26 23
.10 .10

MEAN
.023
.012
.052
.016
.049
.073
.067
.051
.045
.032
.030
.012
.012
.040
.011
.013
.011
.036
.020
.024
.036
.010
.029
.040
.012

.036
.01B





.031

.073
NO.
OF
MRS.
22
1<
?t
2<
2<
2?
24
2«
2«
22
2C
23
IS
24
21
16
21
24
24
22
24
IS
21
22
23

17
21






585


MAX.
.09
.03
.38
.in
.29
.48
.35
.30
.16
.13
.41
.03
.07
.43
.21
.07
.04
.16
.25
.18
.25
.08
.19
.39
.05

.14
.08







.48
CJl
         * Indicates Saturday or Sunday
           Local standard time used
                                                                TABULATED   WHO..  SEP.  10.  1969

-------
CJ1
GO
      CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-43

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC ANALYSIS
  CHICAGO,ILL.
SULFUR  DIOXIDE
      JULY  1968
DAY
MONTH
1
2
3
4
5
6*
7«
8
9
10

11
12
13*
14*
15
16
17
18
19
20*

21*
22
23
24
25
26
27*
28*
29
30
31

NO.
MAX.

12-1


.03
.1C


.07



•°3
.04
.03
.04
.06,
.1*
.04
.04
.01
.06

.11
.11
.03
.03
•01
.04
.06
.01
.041
.21
.03
.06
24
.21

1-2


.03
.14

.03
.04



.05
.09
.03
.Oi
.11
.16
.04
.05
.02
.06

.18
.12
.03
.04
.01
.04
.08
.01
.04
.23
.03
.07
25
.23

2-3


.03
.04

.03
.04



.OS
.10
.04
.04
.10
.16
.04;
.04
.01
.06

.11
.13
.03
.04
.01
.04,
.04
.01
.05
.09
.02
.05
25
.16

3-4


..06
.01

.02
.04



.05
.10
.05
.04
.05
.20
.05
.05
.01
.06

•12
.oi
.03
.04
.01
.05,
.03
.01
.07
.05
.01
.05
25
.20

•5-5


.0!
.03

.04
.04



.05
.11
.07
.04
.08
.17
.Of,
.09
.01
.06

.OS
.05
.04
.04
.01
.Of>
.03
.01
.OA
.04
.0?
.05
25
.17
A
5-6


.09
.04

.05
.05



.06
.12
.06
.04
.11
.16
.12
.10
.01
.07

.07
.05
.04
.05
.01
.06
.04
.01
.10
.03
.02
.06
25
.16
M
6-7


.13
.11

.04
.11



.07
.11
.08
.06
.14
.21
.20
.13^
.01
.06

.07
.05
.04
.05
.02
.06
.06
.01
.06
.03
.03
.08
25
.21

7-8


.11
.11

.01
,\y



.07
.13
.08
.1C
.26
.27
.15
.15
.01
.06

.07
.05
.04
.05
.02
.ot
.091
.01
.02
.04
.04
.09
25
.27

89


.02
.02

.0?
.06



.07

.06
.12
.24
.37
.1?
.17^
.01
.06

.06
.05
.09
.05
.02
.08,
.IV
.01
.02
.03
.04
.08
24
.37

Q-10


.02
.02

.01
.06



.07

.06
.1C
.2C
.27
.09

.01
.06

.06
.05
.03
.04
.02
.12
.02
.021

.03
.09
.07
22
.27

10-11


.Oi
.01

.00
.08





.05
.14
.16
.13
.04

.00
.06

.05
.05
.05
.04
.01
.13
.01
.01

.03
.09
.06
21
.16

11-12


.02
.01


.14



.12
.09
.04
.06
.07

.04
.03
.01
.06

.08
.05
.05
.04


.01
.01
.02
.02
.03
.05
21
.14

12-1


.0*
.02

.Ot
.01



.11
.0*
.Ot
.Of

.06
.04
.03
.01
.06

.08
.04
.04
.03
.02

.02
.01
.02
.01
.02
.04
23
.11

1-2


• 0<
.oc

.01
.0<



.1C
.04
.01
.0!

.04
.04
.02
.00
.03

.07
.04
.041
.02
.02
.01
.03
.01
.02
.01
.02
.03
24
.10

2-3


.03


.01
.11



.1C
.0«
.0<
.ot
.02
.04
.03
.01

.05

.06
.04
.04
.02
.03
.01
.01
.01
.02
.01
.02
.04
23
.11

3-4


.03


.02
.03



.10
.03
.04
.05
.06
.oq
.04
.01
.07
.05

.05
.04
.03
.02
.03
.01
.01
.01
.02
.02
.02
.04
24
.10

4-5


.03
.OC

.01
.01



.10
.03
.0!
.03
.04
.o<;
.0!
.01
.07
.05^

.!•>
.04
.15
.01
.03
.01
.01
.01
.01
.01
.01
.04
25
.15
p
5-6


.01
.00

.00
.01



.10
.03
.04
.06
.06
.06
.04
.01
.07
.05

.09
.04
.07
.01
.03
.01
.01
.01
.01
.01
.01
.03
25
.10
M.
6-7


.0:


.01
.01



.1C
.03
.0-
.11
.06
.K
.04
.01
.01
.05

.09
.03
.04
.01
.03
.01
.01
.01
.01
.01
.01
.04
24
.11

7-8


.0:
.OC

.02
.OE



.1C
.03
.0'
.1C
.12
.05
.04
.01
.01
.OJ

.OE
.03
.03
.01
.03
.01
.01
.02
.01
.02
.02
.04
25
.12

8-9


.Of


.01
.IE



.1C
.03
.0'
.06
.01
.<>•>
.0<
.02
.07,
.05

.o<;
.oi
•H
.01
.03
.05
.03
.021
.01
.02
.02
.0«
24
.18

9-10


.0<


.0<
.16



.0<
.0<
.OJ
.07
.13
.05
.0?
.02
.01
.05

.OS
.041
.03
.01
.03
.02
.02
.031
.03
.03
.03
.0!
24
.16

10-11


.04


.01
.02
..


.0<
.0<
..05J
.13
.11
.06
.04
.01
.01
.06

.Of
.04
.03
.01
.03
.04
.01
.0?
.02
.03
.03
.05
24~
.13

11-12


.03


.08
.01



.10
.04
.04
.05
.10
.05
.03
.01
.07
.06

.08
.03
.03
.01
.04
.05
.01
.02
.06
.03
.03
.04
24
.10

MEAN


.047
.038

.034
.068



.083
.064
.050
.068
.106
.129
.062
.045
.032
.057

.084
.053
.042
.028
.022
.044
.031
.012
.033
.042
.027
.052

.129
NO.
OF
MRS


2<
11

22
2«



23
21
2<
2i
22
?'
2<
22
23
24

?4
24
24
2«
23
22
24
24
22
24
24

576


MAX.


.17
.16

.16
.34



.14
.15
.22
.30
.32
.59
.31
.35
.07
.10

.71
.16
.20
.06
.08
.17
.17
.04
.13
.37
.18


.71
        * Indicates Saturday or Sunday
         Local standard time used
                                                                                                                   TABULATED
                                                                                                                               WED,*  SEP. 10* 1969

-------
        CONTINUOUS KIR MONITORING PROGRAM
        Air Quality Section. Laboratory of Engineering and Physical Sciences
        Division of Air Pollution. Public Health Service
        U. S. Department ol Health. Education, and Welfare

        Robert A. Taft Sanitary Engineering Center
        Cincinnati. Ohio 45226
                  Table 3-44

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONOUCTOMETRIC  ANALYSIS
  CHICAGO.ILL.

SULFUR  DIOXIDE
      AUG.  1968
DAY
MONTH
1
2
3«
4«
5
6
7
8
9
10*
11»
12
13
14
15
16
17«
18«
19
20
21
22
23
24«
25«
26
27
28
29
30

31*
MEAN
NO.
MAX.


12-1
•?,2
,0<
.11
.0!
.0*
.03
.01
.oc
.03
.01
.01
.0*
.11
.13
.00
.06
.01
,od
.06
.03
.11
.08
.14
.06
.04
.06
.01
.01
.01
.02

.08
.05
31
.14


1-2
•?A
.01
.11
.0!
.02
.06
.02
.OC
,0<
.OC
.02
.04
.16
.03
.00
.05
.01
.00
.08
.0!
.12
.09
.14
.0<3
.04
.05
.01
.01
.01
.01

.18
.05
31
.18


2-3
.01
.OS
.OS
.06
.02
.0!
.01
.OC
.o«
.OC
.04
.04
.11
.04
.00
.07
.04
.OC
.04
.OS
.13
.09
.20
.08
.03
.04
.04
.02
.01
.03

.05
.OS
31
.2C


3-4
.01
.OS
.11
.1C
.03
.OC
.OC
.OC
.0!
.OC
.04
.0!
.1*
.03
,OC
.OS
.06
.00
.02
.08
.12
.11
.22
.08
.03
.01
.02
.oe
.01
.31

.03
.06
31
.31


4-5
.01
.01
.01!
.1C
.05
.OC
.OC
.01
.13
.OC
.02
.07
.12
.04
.01
.13
.07
.00
.02
.01
.11
.09
.20
.iq
.04
.00
.00
.07
•15
.*Tl

.04
.07
31
.47

A
5-6
.02
.05
.06
.13
.13
.00
.00
.06
.21
.00
.03
.06
.03
.03
.01
.11
.05
.01
.06
.02
.17
.11
.15
.10
.05
.00
.01
.07
.17
.36

.09
.08
31
.36

M.
6-7
.02
.OC
.OS
.12
.01
.OC
.01
.1C
.2!
.01
.04
.09
.04
.02
.02
.10
.03
.01
.0-5
.ii
.25
.14
.1^
.06
.05
.01
.01
.08
.17
.2ll

.05
.08
31
.25


7-8
.03
.13
.OS
.11
.oe
.00
.01
.13
.17
.01
.02
.25
.07
.02
.01
.12
.04
.01
.IV
.06
.15
.31
.25
.10
.05
.00
.02
.01
.16
.33

.17
.10
31
.33


8-9
.03
.It
.0!
.OS

.OC
.01
.22
.2fl
.01
.01

.0!

.01
.16
.04
.02
.13,
.0
.. - -
.13
.25
.11
.05

.02
.05
ij
.45

.30
.11
25
.45


9-10
.01
.01
.0!
.OS
.06
.OC
.02


.01
.01
.06
.04
.0]
.02
.zc
.031
.Oil
.15;
.02
.07!
.04
.361
.03
.05

.02
.06
.34
.23

.23
.08
28
.36


10-11
.01

.0'
.oe
.01
.oc
.01
• 1C
.OS
.01
.01
.02
.04
.01
.02
.16
.02
.01
.09
.02
.03
.03
.13
.01
.05

.01
.oe
.11
.0*

.12
.0;
29
.17


1 1-12
.03
.14
.05
.07
.08
.12
.01
.08
.09
.01
.01
.03
.02
.01
.02
.13
.03
.00
.10
.02
.02
.07
.09
.06
.05

.01
.06
.05
.03

.09
.05
30
.14


12-1
.01
.11
.01
.1C
.01
.01
.01
.03
.12
.01
.01
.03
.Ot
.0]
.02
.06
.01
.OC
.17
.02
.OC
.08
.06
.0!
.05

.01
.oe
.o<
.03

.05
.0!
30
.17


1-2
.01
.OS
.0*
.1C

.06
.03
.OC
.OS
.01
.01
.02
.02
.01
.03
.02
.01
.OC
.131
.01
.08
.11
.07
.02
.07
.01
.01
.06
.02
.03

.02
.04
30
.12


2-3
.01
.OS
.03
.Ot

.21
.01
.OC
.05
.01
.01
.03
.02
.01
.02

.01
.01
.OS
.02
.1C
.11
.03
.03
.06
.02
.01

.02


.01
.04
27
.21


3-4
.01
.1C
.02
.05

.02
.01
.01
.0!
.01
.01
.06
.02
.OC
.02

.01
.01
.03
.03
.14
.14
.03
.03
.07
.01
.01
.02
.02


.01
.02
28
.14


4-5
.02
.Ot
.02
.0!
.04
.OC
.OC
.01
.oe
.01
.01
.03
.01
.oc
.02
.oe
.01
.0]
.04
.02
.0«
.16
.OS
.01
.07
.0]
.01
.02
.02
.01

.02
.03
31
.18

p.
5-6
.0?
.03
.02
.06
.06
.00
.00
.05
.06
.01
.01
.03
.02
.00
.01
.04
.00
.00
.02
.06
.20
.09
.06
.00
.07
.01
.01
.02
.02
.01

.02
.03
31
.20

M.
6-7
.01
.03
.01
.Ot
.OC
.01
.OC
.oe
.01
.oc
.01
.02
.02
.or
.01
.o<
.oc
.OC
.02
.06
.06
.22
.1C
.OC
.07
.01
.01
.03
.02
.01

.03
.03
31
.22


7-8
.01
.0;
.0;
.03
.oc

.oc
.02
.0'
.01
.01
.01
.02
.00
.01
.02
.OC
.OC
.07
.10
.09
.or
.14
.01
.08
.01
.01
.02
.02
.00

.02
.03
30
.14


8-9
.01
.02
.01
.03
.OC

.OC
.02
.Ot
.0]
.01
.02
.02
.ol
.02
.03
.OC
.01
.02
.06
.11
.05
.17
.62
.1C
.01
.01
.02
.01
.OC


.OS
29
.62


9-10
.01
.0:
.02
.03
.OC

.OC
.03
.0-
.01
.01
.02
.0!
.01
.02
.02
.OC
.03
.05
.oe
.25
.06
.OS
.36
.08
.01
.01
.oz|
.01
.oc


.0!
29
.36


1O-I 1
.01
.02
.O1
.0!
.OC
.01
.OC
.03
.01
.01
.01
.02
;OS
.01
.06
.01
.00
.02
.231
.oe
.11
.OS
.?!
.oi
.07
.01
.01
.02
.01
.oc


.0*
30
.23


1 1-12
.02
.05
.03
.04
.01
.08
.00
.03
.01
.01
.17
.01
.14
.01
.09
.02
.00
.01
.07
.07
.06
.08
.15
.05
.08
.01
.01
.02
.02
.01


.04
30
.17


MEAN
.015
.070
.053
.069
.042
.033
.008
.043
.086
.007
.023
.047
.058
.019
.019
.079
.020
.007
.078
.046
.115
.108
.147
.088
.057
.014
.012
.03.9
.065
.117

.080
.054

.147

NO.
OF
MRS.
?«
2-
?t
2<
2C
21
2<
23
23
2<
2<
23
2'
23
2<
22
2<
24
2«
24
23
24
24
24
24
IS
24
23
231
22

2C

7ie



MAX.
.06
.23
.13
.18
.16
.76
.09
.26
.50
.05
.20
.41
.25
.25
.10
.36
.09
.04
.33
.17
.57
.43
.49
1.09
.11
.08
.05
.08
.44
.49

.41


1.09

C71
CD
          * Indicates Saturday or Sunday
            Local standard time used
                                                                TABULATED    WED..  SEP. 10, 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory ol Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department ol Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                   Table 3-45

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
     SEPT.  1968
DAY
MONTH
2
3
4
5
6
7*
8«
9
10
11
12
13
14*
15*
16
17
18
19
20
2l«
22*
23
24
25
26
27
28«
29*
30
MEAN
NO.
MAX.
A.M.
12-1



.OC
.01
.03
.02
.01]
.01
,01
1-2



.00
.01
.03
.03
.03
.01
.01
,05j .0!
.071 .OS
.101 .08
.05 .06
.07 .06
.07 .1C
.02 .06
,03j .02
2-3



.OC
.01
.02
.02
.02
.02
.02
.06
.07
.06
.06
.08
.1!
.1C
3-4



.00
.01
.02
.00
.04
.02
.03
.OS
.12
.OS
.05
.16
.15
4-5



.OC
.02
>0<
.01
.02
.04
.04,
5 6



.01
.08
.03
.02
.02
.02
.05
.10 .08
.2C
.1C
.06
,11
.15
.26
.12
.06
.13
.10
.Ofi .04! .02
.031 .02 .041 .19
.04J .05, .08 .,13
i 1
.02 .03
.05 .04
.07 .11
.16 .20
.02 .04
.11
.13
.02
.14
.06
.05
26
.16
.09
.13
.02
.13
.06
.06
26
.20
.071 .09
.04 .06
.13
.16
.04
.08
.17
.02
.13
.05
.07
26
.17
.11
.12
.04
.09
.26
.02
.14
.04
.08
26
.26
.14
.15
.041
.09
.13
.02
.iq .11
.n| .13
.04
.07
.28
.06
.09
.27
.0? .06
.111 .07
.04
.08
26
.2fl
.07
.09
26
.27
6-7



.01
.11
.03
.02
.12
.03
.07
.10
.14
.16
.07
7.8



.05
.08
.02
.02
.09
.04
.08
.09
.20
.26
.09
.071 .06
8-9



.02
.09
.02
.01
.19
.04
.05
.06
.16
.20
.08
.06
.16' .14 .05
.03| .05 .02
9- 1O



.01
.06
.02
.01
.10
.04
.04
.04
.21
.30
.08


1O-1 1



.02
.04
.01
.00
.08
.04
.04
.03
.13
.12
.08

.OS
.021 .01
,27| .ll| ,03| .02] .01)
.16 .23 .24
.07 .ICJ .24
.02 .02 .03
.10 .141 .11
.14' .04! .04
.06 .091 .04
.18
.20
.15
.06
.10
.10
26
.27
.1* .07
.13 .08
.13 .05
.08, .05
.11
.10
26
.26
.07
.08
26
.24
.26
.09
.07
.22
.06
.13
.10 .OS
.04
.03
.06
.07
.03
.06
.12
.08
24
.30
.04
.02
.06
.04
.04
.06
.18
.07
25
.22
1 1-12



.01
.04
.01
.01
.11
.04
.02
.02
.13
.11
.04

.06
.00
.07
.09
.04
.17

.09
.02
.04
.04
.03
.04
.18
.06
24
.18
P.M.
12-1



.01
.02
.01
.01
.06
.03
.02
.03
.13
.01
.04
.04
.0!
.OC
.10

.03
.14

.1!
.02
.04
.05
.02
.04
.16
.05
24
.16
1-2



.OC
.OC
.OC
.OC
.01
.04
.03
.03
.14
.06
.03
.06
.07
.02
.12
.11
.02
.10

.06
.02
.04

.02
.03
.15
.05
24
.15
2-3



.OC
.OC
.OC
.OC
• 0<
.03
.01
• 0<
.11
.04
.03
.04
.OC
.02
.07
.12
.03
.OS

.05
.02
.03
.02
.02
.03
.12
.04
25
.12
3-4



.OC
.01
.OC
.OC
.01
.02
.02
.04
.1C
.03
.04
.04
.03
.01
.1C
.10
.03
.OS
.1C
.10
.02
•03I
.03
.02
.02
.06
.04
26
.10
4-5



.OC
.OC
.01
.OC
.01
.02
.02
.0<
.Of
.03
.03
.Of
.03
.02
.1C
• OS
.02
.07
.16
.091
.02
.03
.03
.03
.02
.09
.04
26
.16
5-6



.00
.00
.00
.01
.01
.02
.01
.04
.05
.03
.04
.08
.07
.01
.02
.04
.02
.08
.13
.10
.02
.03
.02
.02
.03
.09
.04
26
.13
6-7



.OC
.01
.01
.01
.01
.03
.01
.05
.04
.04
.07
.13

.02
.02
.06
.04
.07
.16
.11
.02
.02
.03
.02
.04
.13
.05
26
.16
7-8



.02
.01
.01
.02
.01
.03
.01
.07
.06
.04
.13
.10
.10
.02
.02
.06
.06
.05
.07
.11
.05
.02
.03
.02
.05
.11
.05
26
.13
8-9



.02
.02
.01
.0!
.0]
.02
.01
.11
.09
.05
. 0<
.05
.07
.01
.02
.04
.07
.05
.13
.05
.oa
.03
.03
.03
.06
.11
.05
26
.13
9-10



.01
.02
.01
.0!
.01
.03
.02
.06
.Of
.05
.01
.04
.03
.04
.04
.03
.06

.1C
.04
.09
.08
.03
.05
.05
.12
.05
26
.12
IO-1 1



.01
.04
.02
.01
.01
.02
.04
.11
.11
.05
.1C
.04
.OC
.04
.03
.03
.05
.04
.13
.03
.09
.08
.02
.10
.06
.12
.05
26
.13
1 1-12



.01
.04
.02
.01
.01
.01
.07
.07
.09
.05
.08
.04
.00
.03
.03
.02
.05
.09
.12
.02
.07
.14
.02
.11
.06
.17
.05
26
.17
DAILY
MEAN



.009
.030
.016
.014
.044
.026
.029
.061
.118
.094
.063
.075
.076
.026
.062
.105
.065
.065
.112
.092
.041
.068
.091
.043
.065
.104
.061
.118
NO,
OF
HRS.



24
24
24
24
2'
24
24
2'
2<
2<
24
21
23
24
24,
23
24
24
20
24
24
24
23
24
24
24
614

MAX.



.07
.14
.06
.08
.27
.05
.11
.16
.40
.50
.15
.20
.22
.18
.38
.43
.47
.20
.31
.28
.12
.20
.33
.17
.17
.28
.50
  * Indicates Saturday or Sunday
    Local standard time used
                                                               TABULATED   WED..  SEP.  10.  1969

-------
CONTINUOUS MR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division ol Air Pollution, Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-46

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
      OCT.  1966
DAY
MONTH
1
2
3
4
5«
6«
7
8
9
10
11
12*
13«
14
15
16
17
18
19«
20*
21
22
23
24
25
26«
27«
28
29
30
31
MEAN
NO.
MAX.
A.M.
12-1
.12
.03
.02
.04
.it
.1C
.oe
.oe
.It
.01
.!«
.08
.07
.oe
.02
.03
.03
.06
1-2
.11
.04
.02
.04
.2C
.07
.07
.01
.26
.0!
.1C
.1C
.01
.06
.02
.03
.03
.06
.12) .OS
.06
.18
.05
.15
.08 .19
.06' .05
.16
.16
.21
.08
.10
.11
.04
.19
.09
31
.21
.12
.16
.10
.05
.07
.11
.03
.29
.09
31
.29
2-3
.13
.0*
.02
.05
.It
.06
.04
.01
.1!
.0«
.11
.12
.01
.06
.02
.03
.03
.06
.06
.06
.23
.07
.07
.10
.15
.07
.06
.06
.10
.09
.29
.09
31
.29
3-4
.12
.04
.02
.0!
.1C
.06
.01
.01
.14
.OE
.14
.14
.oe
.06
.02
.02
.02
.05
.oe
.06
.24
.06
.08
.10
.18
.12
.05
.06
.11
.23
.33
.09
31
.33
4-5
.14
.04
.03
.01
.1C
.OP
.11
.12
.11
.1C
.27
.1!
.07
.06
.0?
.03
.03
.07
.OS
.06
.33
.07
.11
.1C
.24
.17
.06
.08
.14
.24
.14
.11
31
.3)
5-6
.13
.05
.04
.09
.15
.06
.20
.21
.20
.16
.31
.10
.10
.07
.02
.03
.04
.08
.12
.07
.22
.12
.18
.13
.32
.30
.07
.12
.15
.30
.12
.14
31
.32
6-7
.14
.14
.05
.13
.16
.01
.It
.2!
.1C
.2C
.25
.18
.09
.01
.02
.03
.04
.IS
.IS
.12
.32
.241
.22
.12
.35
.33
.05
.23
.23
.5C
.18
.17
31
.50
7-8
.24
.12
.0*
.14
.16
.01
.11
.32
.IS
.22
.2<
.2*
.1C
.11
.03
.03
.04
.21
8-9
.24
.21
.0<
.11
.12
.06
.08
.2C
.1!
.14
.16
.29
.07
.11
.03
.03
.02
.2!
.261 .16
.14
.41
.11
.21
.08
.37
.32
.07
.26
.23
.59
.18
.19
31
.59
.07
.24
.07
.21
.Of
.32
.23
.06
.27
.22
.39
.17
.16
31
.39
3-10
.41
.32
.04
.01
.05
.06
.01
.11
.11
.12
.14
.26
.01
.OS
.03
.03
.02
.14
.06
.04
.13
.04
.2C
.07
.27
.2C
.08
.2!
.20
.26
.12
.13
31
.47
1O-I 1
.2?
.11
.03

.04
.0!
.OE
.12
.Of
.01

.11
.0!

.03
.02
.02
.OE
.0!
.03
.1C
.041
.28
.11

.15
.05
.23
.16
.18
.13
.10
27
.28
1 1-12
.08
.23
.03
.04
.04
.04
.12
.10
.07
.06
.06
.15
.03

.03
.02
.02
.18
.03
.03
.06
.04
.08
.12

.15
.07

.13
.10
.10
.08
28
.23
P.M.
12-1
.11
.1!
.02
.0!
.04
.0!
.12
.13
.01
.06
.05
.1!
.03

.02
.02
.02
.05
.04
.03
.04
.0!
.06
.1C
.14
.21
.0!

.13
.05
.08
.08
29
.27^
1-2
.13
.12
.04
.0!
.04
.04
.1C
.11
.oe
.06
.06
.06
.03
.02
.02
.02
.02
.11
.03
.03
.05
.0!
.1^
.13
.14
.14
.06

.10
.04
.07
.07
30
.19
2-3
.11
.11
.03
.04
.oe
.01

.Oe
.oe
.oe
.0!
.04
.03
.02
.02
.02
.02
.24
.03
.03
.04
.04
.18
.16
.10
.06
.07

.06
.03
.05
.01
29
.24
3-4
.11
.21
.02
• 0<
.05
.oe

.0!
.OE
.01
.04
.0!
.03
.02
.02

.02
.22
.03
.03
.04
.04
.11
.16
.1C
.07
.06
.24
.11
.04
.05
.08
29
.24
4-5
.01
.OE
.02
.0<
.04
.0!
.01
.0!
.21
.0«
.OE
.04
.03
.02
.02
.02
.01
.23
.04
.03
.05
.0:
.Ot.
.11
.13
.1C
.oe
.2<
.11
.04
.08
.08
31
.27
5-6
.03
.12
.03
.04
.07
.06
.06
.06
.10
.10
.07
.06
.04
.03
.02
.02
.12
.11
.06
.05
.06
.05
.07
.15
.18
.12
.07
.21
.07
.03
.10
.08
31
.21
6-7
.02
.3!
.02
.Oe
.1C
.01
.06
.05
.06
.Of
.oe
.1C
.04
.03
.02
.0!
.15
.11
.01
.08
.06
.oi
.06
.15
.12
.11
.08
.13
.08
.05
.ia
.08
31
.35
7-8
.04
.12
.02
.01
.OS
.06
.oe
.0*
.0(
.1C
.11
.15
.0!
.03
.02
.03
.Of
.13
.Oe
.1C
.05
.oe
.is
.n
.14
.15
.06
.12
.12
.05
.08
.08
31
.19
8-9
.0!
.Ot
.04
.OS
.16
.01
.31
.04
.0!
.12
.1C
.IS
.0!
.02
.02
.0?
.1C
.14
.oe
.1C
.0«
.1C
.12
.2C
.11
.12
.OE
.11
.16
.07
.01
.1C
31
.31
9-10
.1!
.04
.04
.oe
.12
.oe
.21
.04
.0!
.1C
.15
.14
.0!
.02
.02
.02
.06
.0?
.oe
.14
.06
.1C
.oc.
. i<
.1C
.11
.1C
.OE
.1C
.1C
.26
.09
31
.26
10-1 1
.oe
.02
.0'
.!<
.14
.05
.OS
.0!
;o:
.14
.13
.0?
.06
.03
.03
.04
.05
.13
.01
.1C
.oe
.01
.OE
.15
.12
.10
.OS
.OS
.07
.09
.11
.06
31
.17
11-12
.03
.02
.03
.13
.07
.05
.08
.07
.05
.18
.11
.08
.06
.02
.03
.04
.06
.14
.06
.10
.05
.06
.10
.15
.14
.10
.09
.09
.05
.11
.07
.08
31
.18

MEAN
.134
.117
.032
.070
.102
.060
.109
.104
.115
.104
.131
.127
.056
.047
.024
.027
.046
.137
.082
.067
.133
.074
.129
.130
.183
.159
.066
.151
.127
.151
.141
.101

.183
NO.
OF
MRS.
2<
2<
24
2!
24
21
22
24
24
2<
2^
24
2<
21
24
21
24
24
24
24
24
24
2<
24
22
24
24
2C
24
24
24

730


MAX.
.61
.46
.07
.17
.28
.16
.43
.42
.33
.28
.36
.40
.13
.19
.08
.06
.34
.50
.32
.18
.53
.36
.45
.22
.40
.39
.12
.30
.26
.73
.45


.73
   * Indicates Saturday or Sunday
    Local standard time used
                                                                TABULATED   WED. t  SEP.  10,  1969

-------
to
      CONTINUOUS »IR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department of Health, Education, and Welfare

Robert A. Tatt Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-47

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                        CONCENTRATION IN PPM
                                                                         CONDUCTOMETRIC  ANALYSIS
                                                                                    CHICAGO.ILL.
                                                                                  SULFUR DIOXIDE
                                                                                        NOV.  1968
DAY
MONTH
i
2*
3«
4
5
6
7
8
9*
10»
11
12
13
14
15
18
19
20
21
22
23*
24«
25
26
27
28
29
30«
MEAN
NO.
MAX.

A.M.
12-1
.1C
.06
.06
.03
.09
.03
.02
.13
.12
.19
.17
.21
.14
.19
.04

.1!
.10
.31
1-2
,0«
«o<
.Of
.0;
.04
.03
.04
.1C
.12
.17
1 £
.23
.16
. 1^
.03

.16
.10
.34
.12! .11
.OS .06
,0«J .05
.08 .09
.05
.11
.04
.14

.11
26
.31

.07
.12
.04
.15

.11
26
.34

2-3
.06

.06
.0,
.0!
.0
-------
         CONTINUOUS AIR MONITORING PROGRAM
         Ait Quality Section. Laboratory of Engineering and Physical Sciences
         Division of Air Pollution. Public Health Service
         U. S. Department ol Health. Education, and Welfare


         Robert A. Taft Sanitary Engineering Center
         Cincinnati, Ohio 45226
                   Table 3-48

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
              CONDUCTOMETRIC  ANALYSIS
  CHICAGO.ILL.
SULFUR  DIOXIDE
      DEC.  1968
DAY
MONTH
I*
2
3
4
5
6
7»
8*
9
10
11
12
13
14*
15»

16
17
18
19
20
21«
22«
23
24
25
26
27
28«
29«
30
31
MEAN
NO.
MAX.

12-1


.32
.09
.03
.06



.26

.12
.15
.09
.21

.14



.17
.08









12
.32

1-2


.31
.08
.04
.06



.33

.11
, 15
.1C


.16


.11
.41
.08









13
.41

2-3


.21
.09
.04
.09



.21

.11

.10
.20

.IB


.091
.55]
.03









13
.55

3-4


.2!
.09
.04
.1C



.18

.11

.11
.23

.15


.15
.22
.04









12
.25

4-5


.39
.11
.06
.on



.26

.11

.14
.29

.16


.15
.18
.09









12
.39
A
5-6


.28
.16
.07
.11



.38

.11

.19
.32

.22


.13
.26
.06









12
.38
M.
6-7


.51
.19
.08
.13



.39

.11

.2C
.33




.12
.34
.06









12
.57

7-8


.42
.It
.1C
.15



.23

.11
.15

.2*

.30


.16
.39
.10









13
.42

8-9


.39
.16
.1C
.11



.24

.09
. 1*
.22
.17

.23


.13
.25
.09









13
.39

9-10


.2e
.16
.1C
.14



.26

.09
.18
.21
.16

.22


.13
.26
.09









13
.26

IO-1 1



.15

.11



.28

.06
.12
.21
.11

.22



.3C
.14









10
.30

1 1-12

.44

.16

.15



.21
.19
.07

.22
.17




.12
.38
.15
.18








12
.44

12-1

.4«

.19

.16



.11
.15
.01

.21
.23

.16


.11
.3C
.14
.14








13
.44

1-2

.43

.32

.14



.16
.11
.01

.21
.25

.19


.09
.2C
.11
.11








13
.43

2-3

.44

.3C





.22
.11
.01

.27
.29

.23


.10
.13
.13
.13








12
.46

3-4

.31

.36





.11
.1C
.06
.14
.21
.26

.11


.10
.08
.18
.13








13
.38

4-5

.21

.21
.0<
.11



.It
.13
.Ot
.11
.26
.25

.2!


.11
.06
.1!
.13








15
.27
p.
56

.39
.12
.17
.08
.12



.21
.10
.06
.13
.25
.23

.24


.12
.06
.13
.12







.16
16
.39
M.
6-7

.41
.01
.49
.01
.12



.3C
.09
.05
.15
.23
.3C

.24


.11
.06
.16
.15







.19
16
.49

7-8

.33
.06
.29
.01
.12



.21
.1C
.05
.14
.23
.22

.29


.10
.14
.19
.11








16
.33

8-9

e 2*
.01
.26
.06
.1C



.26
.11
.05
.12
.2:
.16

.19


.Ot
.14
.24
.15







.16
16
.28

9-10

.2C
.Of
.22
.01
.11



.16
.11
.01
.09
.22
.23

.19


1.08
id
•'1
.17







.14
16
.23

10-n

.25
.01
.01
.01
.It



.15
.12
.0*
.01
.2C
.2t

.25


.09
.06
•"1
.12
1






.13
16
.26

1 1-12

.34
.08
.05
.07




.17
.13
.06
.07
.22
.17

.23


.15
.05
.21
.20








15
.34

MEAN

.351
.233
.191
.069
.120



.239
.117
.079
.130
.201
.231

.210


.113
.214
.122
.146









.351
NO.
OF
MRS

1?
n
2«
IE
21



24
13
2«
\(
2<
24

23


22
24
24
131








324


MAX

.61
.67
.71
.14
.26



.46
.21
.20
.33
.33
.36

.45


.23
.61
.31
.24









.71
O5
CO
           * Indicates Saturday or Sunday
             Local standard time used
                                                                TABULATED   WED..  SEP.  10,  1969

-------
O5
     CONTINUOUS AIR MONITORING PROGRAM
     Air Quality Section. Laboratory of Engineering and Physical Sciences
     Division of Air Pollution. Public Health Service
     U. S. Department of Health. Education, and Welfare

     Robert A. Tail Sanitary Engineering Center
     Cincinnati. Ohio 45226
                 Table 3-49

          HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS


             CONCENTRATION IN PPM
             FLAME  IONIZATION ANALYSIS
      CHICAGO,ILL.
TOTAL HYDROCARBON
          JAN.  1968
DAY
MONTH
1
2
3
4
5
6«
7*
9
10
11
12
13*
14«
15

16
17
18
19
20*

21*
22
24
25

26
27«
28*
29
30
31
MEAN
NO.
MAX.

12-1
2.4
2.1
2.4
2.1
2.6
2.6
2.5
2.5
2.5
2.3
2.0
2.6
2.8
2.C

3.9
2.1
2.6
1.9
2.5

2.8
2.8
2.8
2.9







2.;
25


1-2
2.6
2.1
2.2
2.1
2.8
2.4
2.2
2.4
2.6
2.1
1.9
2.!
2.4
1.9

3.6
2.2
2.4l
1.8
2.5

2.9
2.9
?.A
2l6
2.7







2.5
25


2-3
2.6
2.1
2.2
2.0
2.3
2.2
2.2
2.4
2.3
2.0
1.9
2.3
2.3
1.8

2.5
2.2
3. ti
l.Bj
2.3

2.8
3.C

2.61







2.4
25


3-4
2.8
2.1
2.0
2.0
2.4
2.2
2.1
2.3
2.3
2.0
1.8
2.0
2.1
1.8

3.5
2.2
2.<1
i.e
2.3

2.6
3.0
2)5
2.8







2.3
25


4-5
3.C
2.1
Z . 4
2.1
2.1
2.2
2.0
2.4
2.3
2.0
1.9
2.C

1.8

4.1

2.2
2.0
2.5

2.5
2.7
•) K
2.5,
2.5







2.3
25

A
5-6
2.8
2.3
2.2
2.1
2.1
2.3
2.0
2.4
2.4
2.1
1.9
2.0
1.9
2.0

4.5
2.3
2.2
1.9
2.R

2.6
2.5
2 R
'.6
2.6







2.4
25

M.
6-7
2.1
3.1
2.1
2.3
2.4
2.3
2.C
2'.'.
3.1
3.01
2.4,
2.3
2.C
2.7

4.91
2.6
2.7
2.2
2.9

2.4
2.9
4 0
3.?
3.1







2.8
25


7-8
S:f
2.<
2.(
2.J
2 (
2.i
3li
4.4
3.4
2,7
2.9
2.*-
2,9

4.7
*.
-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U.S. Department ol Health. Education, and Welfare

Robert A. Tail Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-50

          HOURLY AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS


             CONCENTRATION IN PPM
            FLAME IONIZATION  ANALYSIS
      CHICAGO.ILL.
TOTAL HYDROCARBON
          FEB.  1968
CT
DAY
OF
MONTH
1
2
3*
4*
5
6
7
8
9
10*
11*
12
13
14
15
16
17*
18*
19
20
21
22
23
24*
25*
26
27
28
29
MEAN
NO
MAX.
12-1

A.M.
1-2


2.9^
3.1
3.1
'I!
3.0
3.0 2.7
2.3 2.1
2.7 2.7
2.4 2.6
2.5 2.4
3.9 3.5
2.5 2.5
2.7 2.6
2.6 2.3
2.7 2.6
2.7 2.4
2.4 2.3
2.9


2.6
2.5
2.2

3.2J 2.9
21 , 23
12. S 9.8
2-3


2.4
2.3
2.6
2.5
2.0
2.3
2.2
2.3
2?4
2.6
3-4


2.3
2.2
2.5
2.3
2.0
2.3
2.1
2.3
2.7
2.5
2.6
2.4| 2.2
2.5^2.4
2.3 2.6
2.4 2.7
2.3 2.3
3.1
2.4

2.7
23
7.1
3.1

22
7.1
4-5


2.3
2.2
2.5
2.2
2.0
2.4
2.2
2.3
2.6
2.5
2.6
5-6


2.5
2.3
2.7
2.2
2.2
2.5
2.2
2.3
2.7
2.6
2.1: 2.2
2.7! 2.4
2.2; 2.3
J
1'"
l.T 1.9

22

23

6-7

7.1
3.2
2.*7
2.3
2.8
3.4
2.8
2.7
3.5
2.7
2.6
3.0
2.2
7-8


3.5
3.7
2.3
3.2
4.4
3.3
3.1
2."
2.7
8-9


4.3
3.*0
2.3
3.3
4.9
3.4
3.4
3.5
3.2
2.7
3.2 3.9
3.8
!is
2.4J 2.3



20

2.9J 3.4

3.B
21


3.9
23

9-IO


3.9
3.3
2.9
2.2
3.6
3.1
3.4
2.8
2.5
3.2
3.0
2.3



20

1O-I 1


3.4
3.1
2.7
2.2
3.2
3.3
3.1
3.C
2.7
2.3
3.4
2^6
3.8
2.3



21

1 t-12


3.0
3.4
3.0
2.2
3.0
3.0
3.1
2.9
2.9
2.6
2.3
3.1
2.9
2.5
3.3
2.9
2.3



3.0
22

P.M.
12-1

3.;
3^1
3.C
2.1
3.C
2!?
2.E
2.1
2.4
3.1
2.6
2.1
3.1
3.1
2.4

3.6

23

1-2


3.C
3.2
3.1
2.2
2.9
2.8
2.9
3.1
2.9
2.7
2.5
3.1
2.6
2.7
2.8
3.2
2.4

3.5

23

2-3

3.6
3.3
3.2
2.1
3.5
2.8
3.C
2.9
2.9
2.6
2.6
3.3
2. a
2.6
3.1
2.7

4.3

21

3-4

3.E
3.1
3.2
2.1
3.7
2.9
2.9
3.4
2.1
2.6

2.8
3.5
2.7
3.2

17

4-5

3.3
4.3
3.2
2.4
3.3
3.1
3.2
3.3
3.2
2.1
2.1

4|e
3.5
3.0
4.0

20

5-6

5.4
3.3
4.5
3.3
2.6
3.5
3.1
3.1
3.4
3.0
2.7
2.8
3.9
3.2
3.1
4.1
3.2
3.3
4.2
4.6

23

6-7

4. 1
3.1
2.?
2.3
2.9
2.1
3.C
3.C

2.1
2.1
3.2
2.8
2.6
3.1
3.2
3.7
3.4

22

7-8

3 i
3.C
2.8
2.2
2.8
2|:
3.2

2.6
2.1
3.1
2.8
2.6
3.0
2.9
2.9
2.9

22

8-9

4.C
3. 1
3.C
2.E
2.-
2'. I
3.:
2.5
2.6
9-10

2.6
3.C
2.1
2.3
2.9
2.1
3!?
2 4
2.6
2.9 2.E
3.0
2.8
3.2
23.*5
3.6

22

2.1
2.8
2.1
2.6
3.4

21

10-1 1

3 \


2'6
2!:
3.3
2 4
2.6
2.8
2.t
2.1
2.1
2.1
2.7
2.5
2.E
2.9

23

1 1. 12

2.9
2.8
3.0
2.4
2.4
2.5
2.6
4.1

2.8
2.8
3.0
2.8
2.8
3.6
2.5
3.0
3.0

2.9
22
4.1
DAILY
MEAN

5.13
3.63
3.06
3.20
2.91
2.31
2.83
2.89
2.76
2.97
3.02
2.66
2.59
3.68
3.00
2.79
2.7«,
3.21
2. 84
2.56
3.83
3.15
3.34
3.08
5.13
NO.
OF
MRS.

2<
21
2(
22
24
24
22
24
24
2!
2<
2<
2<
22
. 2C
19
23
24
24
16
18
24
520
5-MIN.
MAX.

15.6
6.8
7.1
9.0
5.0
3.6
5.3
5.8
4.8
6.0
9.0
3.8
3.9
10.3
6.3
4.5
5.7
7.1
7.6
4.9
9.5
8.7
7.3
15.6
* Indicates Saturday or Sunday TABULATED WED.. SEP. 10, 1969
Local standard time used

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
'U.S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-51

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             FLAME  IONIZATION ANALYSIS
      CHICAGO.ILL.
TOTAL HYDROCARBON
         MARCH 1968
DAY
OF
MONTH
2«
3«
4
5
6
7
8
9«
11
12
13
15
16*
18
19
20
~21~
22
23«
24«
25
26
27
28
29
30«
31*
MEAN
NO
MAX

12.1
2.8
2.1
2^1
3.J
A.M.
1-2
2.4
s.d
2.6
2.8 2.6
2.6 2.
-------
CONTINUOUS AIR MONITORING PROGRAM
Ait Quality Section, Laboratory of Engineering and Physical Sciences
Division of Ait Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-52

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             FLAME IONIZATION  ANALYSIS
      CHICAGO.ILL.
TOTAL HYDROCARBON
         APRIL 1968
DAY
OF
MONTH
1
3
4
5
6*
7«
8
9
10
11
12
15
16
17
18
19
20«
21«
22
23
24
25
26
27»
28«
29
30
MEAN
NO
MAX.
121
3.C
3.4
2!l





A.M.
1-2
|.9
2,'i




2-3
2.1
3.C
2.3
1.8


3.2


3.9 3.2 4.6
3-4
2.;
2.8
2.2
1.8


3.2


4.<




3.4 3.2
2.6 2.2
>
3.0 2.6
3.9 2.7
2.5 *.5
3.4 3.1
i

20 20
6.9J 5.2

!:•
1:1
2.4
3.0

20
4.6


3.1
2.6
2.2
2.4
2.4
._
3.2

20
4.4
4.5
2lf
2.C


3.2


4.3



3.0
2.5
2.4
2.2
2.4
3.5
5-6
2.8
3.0
2.1
2.1


3.2


5.3


3.2
2.8
2.6
:::
5.2

20
4.3
20
5.3
6-7
si!
2.8
2.5


3.3


5.2


3~. 6
2.8
3.6
2.4
2.5
5.9

20
5.9
7-B
\:\
3|<





4.1

3 "
3.8
3.8
2.9
2.5
5.5

20
5.5
8-9
3.3
2.8
2.5


3.J


4.^



3.9
2.8
1:1
'••
..,

20
5.0
9-10
1:1
3.1
2.5


3.1






3.5
2.9
3.t
3.0
2.6
4.2

20
5.0
1O-) 1
3.C
2.1
2.3


3.2


4.1



3.3
3.1
sic
2.6
4.0

18
4.2
1 1-12
2.9
3.2
2.2


2.9
2.6






3.3
3.5
3.4
2.6
2.5
3.6

19
4.2
P.M.
12-1
3.C
3.2
2.1
2.2


2.i






3.1
3.2
3.5
2.6
2.5
3.7

20
5.1
1-2
3.3
2.8
2.8
2.1


2.8
2.4






3.1
4.«
5.0
2.6
2.8
4.2

20
5.0
2-3
1:1
3.5


2.1






3.1
4.8
4.6
2.3
3.4
4.5

19
4.8
3-4
4.2
4.2


2\l






3.2
2!*
3.3
4.3

19
5.4
4-5
5^2
3.£


2.!
3.1






3.2
4.1
5.5
2.3
3.4
5.1

19
5.5
5-6
4.2
4.9
3.8
3.9


2.5
3.5



4.2


2.9
4.5
5.3
2.4
4.1
4.0

20
5.3
6-7
4.C
4.C
3.1
3.f


2.5
3.2


4.2



3.2
3.5
3.1
2.5
4.0
3.8

20
4.5
7-8
3.E


2.5
4.J






2.8
3.1
3.£
2.4
3.9
3.7

20
4.8
8-9
4.3
3.C
2.1
3.E


UJ IX*
• • •
in n> i


3.1



2.S
4.1
2.!

4.1

20
4.3
9-10
2!)
3.5


s!s






2.8
3.C
3.1
3.7

20
4.3
10-11
j:j


s!c


3.5



3!3
3'£
3.1
3.8

20
5.0
1 1-12
3.5
2.5
2.1
3.7


2.6
3.5


3.9



2.9
3.0
4.0
2.6
3.4
3.9

20
4.4
DAILY
MEAN
3.46
3.24
2.67
2.70
3.58
3.62
2.89
3.18
3.45
4.09
4.33
3.73
3.94
3.31
3.18
3.28
3.74
2.57
2.96
4.07
3.41
4.33
NO.
OF
MRS.
22
2<
21
2«
2<
2<
23
24
2<
2<
2<
2<
2<
2«
24
24
24
24
474
5-MIN
MAX.
6.5
7.6
6.3
6.8
8.3
14.3
3.8
9.5
6.2
8.7
6.6
5.9
7.5
4.1
5.3
6.6
8.0
5.7
6.1
8.4
14.3
  * Indicates Saturday or Sunday
    Local standard time used
                                                                TABULATED   WEO.t  SEP.  10»  1969

-------
 CONTINUOUS AIR MONITORING PROGRAM
 Air Quality Section. Laboratory of Engineering and Physical Sciences
 Division ol Air Pollution, Public Health Service
.U.S. Department ol Health. Education, and Welfare

 Robert A. Taft Sanitary Engineering Center
 Cincinnati, Ohio 45226
                   Table 3-53

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS


             CONCENTRATION IN PPM
             FLAME IONIZATION  ANALYSIS
      CHICAGO,ILL.
TOTAL HYDROCARBON
           MAY  1968
DAY
OF
MONTH
1
2
3
4«
5«
6
7
8
9
10
12*
13
14
15
16
17
18*
19*
20
_____
22
23
24
25«
26«
27
28
29
30
31
MEAN
NO.
MAX.
A.M.
12-1

2.6
2.1
2.3
1.4
2.0
3.2
2.1
3.1
2.2
1.8
5.4
2.1
2.0
9.0
2.4
2.3
3.8
3.8
2.1
4.5
2.5
2.4
6.0
2.9
27

1-2

2.2
z!;
2.0
2.1
2.8
2.1
2.6
2.1
2.0
4.0
2.1
2.0

2.2
2.2
2.8
2.6
2.0
2.3
3.3
2.1

2.6
27

2-3

2.1
3.5
2.1
2.1
2.1
2.3
2.C
2.6
1.7
1.8
4.5
2.C
2.0

2.0
2.0
2.3
2.5
2.0
2.2
3.0
2.4

27

3-4

2.1

2.1
2.2
2.1
2.2
2.1
2.C
2.7
1.4
1.8
3.!
1.9
2.0

1.9
2.1
2.1
2.2
1.9
2.0
2.7
2.0

27

4-5

1.4

2.1
2.5
2.1
2.2
2.C
2.3
2..
1.3
1.7
3.7
l.fl
2.0

2.0
2.1
2.2
2.1
2.0
2.1
2.1
2.0

27

5-6

2.0

2.4
3.2
2.1
2.1
2.9
4.3
1.8
2.4
3.6
1.9
3.1

3.3
3.3
2.4
2.2
2.5
2.8
3.2
2.2

27

6-7

2.1

2.6
3.2
2.1
2.3
3.3
5.9
2.0
2.7
3.2
2.C
4,3

4.5
4.4
2.8
2.1
2.9
4.0
2.2

27

7-8

2.1

2.1
3.1
2.2
2.5
6l3
2.3
3.0
2.8
1.8
4.3

4.4
4.5
3.2
2.3
3.1
2!i

27

8-9

2.1

2.1
2.6
2.4
2.5
4.5
2.2
2.6
2.3
1.8
3.7
J.o
4.2
3.7
2.1
2.8
3.5
2.1

24

9-1 O
2.6
2.1
2 c
2.!
2-1
2.7
3.7
2.2
2.3
2.1
2.1
3.1

4.0
3.3
2.4
2.8
2.0

23

10-1 1
2)2

2.6
3.!
3.2

2.1
2.5
2.1
1.8
2.8
4.1
3.6
2.1
2.7

19

1 1-12
4.9
2.3
2.3
2.8
2.2
2.7
3.9
2.8

2.1
2.7
2.1
1.8
2.6
3.7
3.8
3.8
2.7
2.8
2.2
3.0
23

P.M.
12-1

3.:
2.4
2.1
3.2
4.2

2.1
2.8
2.3
2.4
2.9
2.8
3.9
3.5
4.0
3.3
2)2
3.2
24

1-2

3.4
2.4
3.6
2.8
4.2
3.1
3.-
3.0

2.1
2.4
2.7

4.2
4.1

3.2
3.2
4.3
2.6
3.3
22

2-3

J.i
4.2
3.2
3.C
4.2
2.J

2.;
2.1
3.0

4.7
4.6

3.4
4.1
4.8
2.9
3.6
22

3-4

2.'<
4.2
3.2
3.C
4.6
3.0

2.6
2.E
2.6
3.2

3.5
5.1
6.2

2.8
3.9
4.5
2.7
4.6
3.1
25

4-5

2.'«
4.!
3.1
3.C
4!?
2..

2.6
2.8
2.6
3.2

3.6
5.3
6.5

3.4
3.3
3.7
5.4
2.6

3.1
28

5-6

3.0
3.1
4.3
2.4
2.4
4.4
2.9
2.6

2.4
2.6
2.1
3.3

3.0
4.6
5.3

3.1
3.2
3.8
4.2
2.4

3.4
28

6-7

2.1
3.C
3.6
2.1
2.C
5.2
3.;
2.1

2.2
2.6
2.3
3.4

3.1
3.6
4.5

2.4
3.0
3.3
3.5
2.4

3.1
28

7-8

3.:
2.1
3.J
2.C
2.:
5.1
2.1
3.2

2.1
2.1
3.1
2.e

3.2
4.2
4.8

2.6
2.9
3.C
3.7
2.1

3.2
28

8-9

3.1
2.6
3.4
2.4
2.4
4.6
2.1
2..

2.0
3.4
2.2
3.1

2.9
3.1
5.6

3.0
z.e
2.5
3.9
2.9

3.2
28

9-10
2.<
3.4
2.!
2.C
z!c
3.C

2.1
3.1
2.C
3.3

3.3
3.4
5.4

3.2
3.0
4.1
4.C
3.6

3.3
28

1O-I 1
3.<
3.4
2.<
2J
2.1
3.4
2.1
3.4

1..
4.1
2.2
2.S

3.E
2.9
4.3

2.8
3.1
3.2
3.3
5.5

3.3
28

11-12
3.3
3.1
2.0
2.2
2.7
2.1
3.8
3.4
2.0
3.3

2.0
4.8
2.1
2.7

3.0
2.6
3.5

2.5
4.6
3.4
2.8
6.6

3.3
28
6.9
DAILY
MEAN
4.28
2.82
2.35
3.4-,
2.50
2.64
2.26
3.23
3.12
3.31
2.93
3.32
2.07
2.71
2.83
2.43
3.43
3.55
3.84
3.62
4.05
3.61
2.69
2.76
3.19
3.66
2.69
4.40
3.11
4.40
NO.
OF
MRS.
1!
2<
24
21
23
If
2C
24
24
22
24
22
24
22
24
24
22
24
22
24
21
24
24
20
24
21
24
14
622
5-MIN.
MAX.
6.9
4.3
4.2
5.4
4.1
4.6
3.7
4.7
8.0
7.2
4.8
7.4
3.0
5.9
9.1
4.5
7.8
15.2
6.6
6.0
7.6
5.6
4.3
10.0
10.3
6.4
7.2
6.9
15.2
   * Indicates Saturday or Sunday
     Local standard time used
                                                               TABULATED
                                                                          WED.,  SEP.  10,  1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-54

          HOURLY AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
            FLAME  IONIZATION ANALYSIS
      CHICAGO,ILL.
TOTAL HYDROCARBON
          JUNE  1968
DAY
MONTH
1*
2«
3
4
5
6
7
8*
9«
10
11
12
13
14

16«
17
18
19
20

21
22*
23*
24
25
26
27
28
29«
30«
MEAN
NO


12-1
4.S
3.5




3.6
5.5
2.7
2.C
2.4
2.4


3.0
2.4

3.1
3.2


2.9
3.4
2.9

5.1
2.3
4.6
1.9
3.6
2.2
3.0
26
5.5


1-2
3.3
3.1
3.1


6.C
3.1
7.1
5.1
1.8
2.4
7.1
1.6

2.2
2.4

2.7



4.0
2.3
2.4

5.7
2.0
2.1
2.3
3.8
1.9
3.0
28
7.1


2-3
3.3
2.1




3.2
5.C
5.2
1.7
2.2
1.1
1.5

2.3
2.1

3.1
3.7


2.2
2.0
2.1

2.4
1.7
1.9
1.8
2.3
1.8
2.5
26
5,2


3-4
2.6
2.1
4.5


4.S
3.2
4.C
4.1
U7
1.8
1.1
U!


2.C


3.3


2.1
2.0
2.6

2.0
1.7
U8
1.8
2.2
1.8
2.6
27
4.9


4-5
2.2
2.3



3,fl
3.1
3.3
3.fi
ua
1 .7
ui
u«


us

2.4
2.8


2.1
2.1
3.1

2.1
1.8
1.8
2.1
2.1
1.7
2.5
26
5.2

A
5-6
2.5
2.3
6.8


*.9
3.7
3.4
3.7
3.0
3.3
1,9
2.1

2.4
1.9

2.9
3.1


2.9
2.4
2.6

2.9
2.1
2.1
2.5
2.3
1.7
3.0
28
6.8

M.
6-7
2.1

7.3


5.<
4. 1
4.2
3.3
3.2
3.7
2.1
2.1
2.6
2.4
US

3.3
3.7


3.3
2.5
2.6

4.5
2.8
2.2
2.7
2.4
1.8
3.2
27
7.3


7-8
3.1
2.2



4.*
4.^
4«i

3.2
3. A
2.4
2.2

2.6
Us

3.9



4.C

2.2

5.6
3.0
2.5
2.6
2.4
U8
24~
5.6


8-9
3.2
2.2



3.3
3.1
4.2
2.2

3.3




Us

4.7
2.9.


3.6
2.4
2.3

5.1
3.7
H

2.5
1.7
3.0
21


9-IO
3.3
2.C



3.C
3.1
3.7
2.1

2.7




US

5.3
2.8


3.1
2.C
2.1
3,4
4.3
3.3
2.3
2.3
2.5
1.8
2.8
21


IO-1 1
2.S
1 .c





3.2


7.1


2-3

2.2
2.2
4.6



2.7
2.3
2.0
!3.4
3.6

2.1
2.2
3.6
1.8
2.6
19


1 1-12
3.4
1.9





3.0
3.2

2.0

2.3
2.2

2.4
2.3
3.6



2.5
2.6
2.0
3.1
3.3

2.1
2.6
3.3
1.8
2.6
20


12-1
3.1
U<
2,<



3.4

3.4
4.C
2.1

2.2

2.1
2.2
2,2
3.2
3.2


2.4
2.9
1 .9
3,0
3.5
2.3
2.3
2.7
2.9
1.8
2.7
25


1-2
2.6
2.1
2.3



2.8

3.3
3.2


2.3


2.«

3.1
2.S


2.4
2.8
1.6

3.9
2.5
2.6

3.0
1.9
2.7
20


2-3
2.6
2.1
2.3


3.C
3.3
3.2
3.2
3.3




2.5
2.5
2.5
2. A
2.6



2.7


3.8
2.4
2.8

3.C
1.9
2.7
23


3-4
3.E
2.1
2.4


4.1
3.2
3.1
3.6

7.1

2.E
3t

2.6
2.1
2.E
3.C



2.5
2.2

3.7
2.3
3.0
3.0
3.0
1.9
2.9
25


4-5
3.1
2.2
2.!


3.C
3.5
3.1
3.1
3.0
7,(

3.3
3^ T

2.6
2.1

3.C


3.1
2.5
3.C

3.8
2.4
3.2J

2.8
1.9
3.0
27

p
5-6
2.7
2.3
2.4


3.2
3.6

4.2
3.7
U9

2.9
3 A
2.4
2.7
2.6
3.9
2.9


3.4
2.5
3.3

3.2
2.2
2.7
2.7
2.5
2.0
2.9
26

M.
6-7
2.<
2.!
2,4


6.1
3.6

3.E
2.9


3.4
31
2.3
2.4
5 L
3.1
3.!


3.6
2.4
2.7

2.7
2.1
2.3
2.6
2.6
1.9
2.9
26


7-8
3.2
2,1



3.1

3.1
4.C
3.E


2.<
3c
2.3
2.5
2 *
3.^
2.E


3.5
2.7
3.:

2.6
2.2
2.3
2.7
3.1
2.0
3.0
26


8-9
3 4

2.E


3.<
3.E

3.1
4,5

2.3

3-5
2.4
2.5
2 4
3.2
3.C


3.1
2.1
4.1


2.2
2.2
2.E
3.C
2.1
3.0
27


9- 1O
3 j

2.4


3.<
3.1
3.2


2 c
7 1
2.E

2.4
2.4
2<
3.2
3.2


3.«
2.1
3. 1

2.E
2.5
2.1
2.4
3.C
2.1
2.9
26,


IO-1 1
3.'

2.5


3.C
3.6
3.'

3.6

2 C

3;

2.3
2 «
3.1
2.5


3.1

2 i

2.5
2.1
2.1
3.2
2.5
2.1
2.8
27


1 1-12
3.6
2.2



3.1
3.5
3.5
2.5
3.6

l.p
2.2
3 -a

2.2
2 n
3.2
2.4


3. ft
2.7
2.0

2.4
2.0
2.7
3.1
2.2
Ua
2.7
26


MEAN
3.13
2.34
3.29


3.93
3.44
3.83
3.49
2.99
2.33
2 41
2.31

2.48
2.26
9 In
3.44
3.06
3 07

3.09
2.48
2.57
3 32
3.50
2.32
2.42
2.49
2.76
1.87
2.84
*
NO.
OF
MRS.
74
21
1<


IE
22
2f
2'
18
22

21
1 f

24
1 C
24
22
24

22
24
24
22
24
22
24
22
24
24
591


MAX.
6.7
4.6
8.0


11.2
5.8
9.8
5.8
6.4
4.9
15.2
6.2
IK -a
3.9
3.7
13. A
9.5
4.5
6.3

8.5
8.7
3.5
5.8
10.4
4.7
15.0
4.0
9.8
2.5
15.0

  * Indicates Saturday or Sunday
    Local standard time used
                                                                          MED..  SEP.  10,  1969

-------
CONTINUOUS KIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division of Ail Pollution, Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
                  Table 3-55

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
            FLAME  IONIZATION ANALYSIS
      CHICAGO.ILL.
TOTAL HYDROCARBON
          JULY  1968
DAY
MONTH
1
2
3
4
5
6ft
7«
9
10

U
12
15

16
17
18
19
20«
21*
22
23
24
25

26
27«
28«
29
31
MEAN
NO
MAX.

12-1
1.8
2.8
3.7
5.7
3.1
2.5
5.7
2. fl
4.1





4.6
2.7
2.1
3.6
2.5
4.8
2.3
2.0
2.9






2.4
3.2
21
9^-7


1-2
1.9
2.9
3.3

3.0
2.4
5.2
2.8





2.7
2.5
4.1
2.8
2.3
S.4
2.4
2.1
3.6,


2.0



2.3
3.1
23
7 •»


2-3
1.1
2.C
2.?
s.e
2.1
2.2
3.!
2 1 4





2.S
2.4
3.7
2.4
2.2
.4.9,
2.6]
1.7
2.i


1.8



2.0
2.8
23
5. A


3-4
l.E
1.^
2.1
3.2
2.9
2.«
3.3
2.3





2.5
2.4
2.C
2.3
2.3
4.0
2.2
1.8
2.0


1.9



2.1
2.5
23
4 n


4-5
2.2
2.U
2.8
2.8
3.4
2.;
3.2
2.4





2.7^
2.5
2.1
2.51
3.2
3.2
2.3
1.9
3.0


2.Q



2.1
2.6
23
3*

A
5-6
2.8
2.4
3.5
2.8
3.2
*.5
3.3
2.9





3.2
3.0
2.5
3.0
3.7
2.8
3.2
2.9
4.9


3.1



2.5
9.1
23
4 O

M.
6-7
3.C
2.1
3.f
2.1
3.«
2.6
2.?
3.2





3.6
3.3
2.7
4.0
2.8
2.8
4.2
3.2
4.7






.2.8
3.3
22
4 7


7-8
2.8

4.2
2.8
3.6
2.1
3.U
3.3





3.6
3.4
2.8

2.5
2.4
4.3
3.0
5,3






3.4
3.5
22
5 j


8-9
2.6
t.i
3.'
2.2

2.7
2,1




3.9

3.8
3.2
2.7
3.9]
«!.6
2.2
3.3
2.5
4.4






3.2
3.2
23
c 2


q-io
2.<
2.'
3.3
2.2
3.C
2.1
2.!
3.E



3.5

3.7
2.9

3.8
2.5
2.1
2.6l
2.4
4.C






2.9
3.0
22
4 «U


1O-1 1
2.2
t.\

2.2
4.<
2.1

3.!



3.<

3.2
2.6

3.5
2.5
2.C
2.7
2.8
4.5






2.7
3.0
20
4- c


1 1-12
2.3
2.4

2.4
4.2
2.9
2.4
3.2



2.9


2.7

3.1
3.1
2.1
2.7
3.0
3.4


2.4



2.4
2.9
20
L. • 5


12-1
2.4
2.1
3.C
2.'
3.4
2.i
2.!
3.1



2.7

3.C
2.6
3.2
2.9
2.8
2.1

3.!
3.C


2.6



2.4
2.9
22
\ 7


1-2
2.3
2.8
2.1
2.3
3.3
2.8
3.C




3.0

3.C
2.9
2.9
2.8
2.5
2.1
2.5
3.6
2.6


2.6




2.9
22


2-3

3.2
2.1
2.2
3.!
2.1
3.1




2.9

2.8
2.9
3.C
2.6
2.5
2.1
2.7
3.9
3.2


3.2



.3
3.0
22


3-4
2.1
3.1
3,(
2.2
3.6
2.<
3.3
3.E



2.9

2.9
2.6
3.6
3.1
2.5
2.1
3.2
2.4
3.3


3.2




3.0
22


4-5
2.C
3.2
3.1
2.2
4.C
3.2
3.C
3.<



2.1

3.C
3.2
2.9
3.3
2.9
2.1
2.6
3.6
2.6


3.4



2.8
3.1
23

p
5-6
2.1
3.1
2.7
2.2
3.5
3.0
2.7
3.0
3.3



2.7

2.7
2.8
2.7
2.9
3.1
2.1
2.3
3.2
2.7


3.3



2.5
2.9
23

M.
6-7
2.1
2.(
2.1
2.2
3.1
2.E
2.6
2.1



2.1

2. A
2.6
2.6
2.6
2.9
2.3
2.9
2.9
2.;


2.7



.1
2.4
2.8
24


7-8
2.2
2.1

2,4
3.9
3.3
2.:




2.1

2.9
2.8
3.2
3.1
3.0
2.7
2.6
3.3
2.!


3.4



.2
2.6
3.C
24


8-9
2.2
2.:
3.1
2.8
3.1
3.3
2.1




3.C

3.4
2.7
3.5
2.7
3.3
2 -j
2.3
3.C
3.C


4.<



2.3
2.9
3.1
23


9-10
2.2

2.^
4.2
2.C
4.1
2.E




2.S

3.5
2.6
3.3
3.6
3.0
2.7
2.e
3.1
2.8


3.5



5.3
3.4
22


IO-1 1
2.1
2.C
4.;
3.2
3.!
5.^
3.C
2,1



2.6

4.9
4.C
3.'.

3.1
2.9
2.6
3.C



3.6



.3
3.5
3.6
23


1 1-12
3.6
2.6
5.4
3.2
3.0
5.1
3.0
2.7
7 O



4.2

3.4
2.2
3.9
3.1
2.9
2.6
2.5
2.6



4.4



.6
3.2
3.3
23


MEAN
2.31
2.64
3.27
3.08
3.42
3.01
3.08
3.37
3.21
31 a

3Q A.

3.03

3.22
2.82
3.00
3.23
2.77
2.78
2.77
2.80
3.34


2.99



2.92
2.77
3.04

• 96
NO.
OF
MRS.
2'
2'
2't
24
24
24
2<
2<
22

ft

16

21
24
21
24
24
24
23
24
22


16



15
21

538


MAX.
6.8
5.7
7.4
12.7
5.2
6.4
10.0
T.I
6.2
1 & *

60

9.9

11.2
7.4
13.2
13.8
5.5
6.2
5.9
6.6
6.3


6.5



• 0
11.8


4.3
  * Indicates Saturday or Sunday
    Local standard time used
                                                              TABULATED
                                                                          MED.. SEP.  10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U.S. Department of Health. Education, and Welfare

Robert A. Talt Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-56

           HOURLY.AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             FLAME IONIZATION  ANALYSIS
      CHICAGO.ILL.
TOTAL HYDROCARBON
          AUG.  1968
DAY
MONTH
1
3*
4*
5
6
7
8
9
1 0*

11*
12
13
15
16
17*
18*
19
20
21
22
23
24*
25*
26
27
78
29
30
31*
MEAN

MAX.

12-1
5.4
3.E
3.5
4.3

4.4
2.7
1.1
A.M.
1-2
2.4
9.4
3.2
3.2

i.e
l.C
o.<
3.2 3.4.



















2-3
2.3
6.C
3.C
3.6
2.S
1.6
0.7
O.E
3.1










4.3 1.7
2.2 2.5J 2.5
4.4 5.2 2.2
2.6 2.S 2.7

1.6 1.4| 1.4
3-4
2.1
3.6
3.1
3.S

1.3
0.8
0.1
2.1










l.S
2.4
2.2
2.8

1.4
1.9 1.7 1.5| 1.6
1.7 1.6
i.o •) . o
3.7 2.4
2.7 2.4
3.6
4.2
2.9 2.6
21
9.4
22
'•*
3.2) 2.4
2.1
1.7
2.5
Z.4
23
6.0
2.0
3.r
2.3
2.4
22
6.0
4-5
2.1
4.C
3.4
3.4
2.2
i.;
0.4
l.(
2.7










1.5
2.5
2.2
2.
3.2
3.C
20
8.5
1 1-12
2.6
2.5
3.3
2.9
4.0
3.4
8.5
2.4
3.8










2.4

2.5
2.7

1.6
2.9
2.2
2.5
2.7
3.0
2.9
22
8.5
P.M.
12-1
2.<
2.!
3.1

3.C
3.2
4.3
2.6
4.C










2.4
3.2
2.6
2.7

1.7
2.7
2.0
27
2.3
2.3
3.0
2.6
22
4.3
1-2
2.1
2.t
2.S
3.1
3.3
2.5

3.C
4.C










2.7
2.9
2.8


2.1
2.5
2.3
2.5

3.2
2.6
19
4.0
2-3
3.C
3.1
2.S
3.C
2.4

2.2
3.2










3.8
2.1
2.8


2.6

2.6
3.4

3.0
2.eJ
19
4.1
3-4
2.E
2.6
3.3
3.C

2.2

I.e
3.2










3.8
3.C
2.?


3.0
3.3
3.4
3.7
4 5
3.2
3.C
20
4.9
4-5
2,<
3.3
3.1
2.4
I.E
3.E
l.c
3.3










4.C
2.7
2.9
3.2

3.1
3.7
3.1
3.8

4.1
3.0
22
5.1
5-6
2.7
3.2
2.7
2.2
1.4
2.6
2.6
3.0










2.6
2.5
2.5
2.7

2.8
2.9
2.4
3.1

3.1
2.6
22
4.7
6-7
2ls

2.'.
2.1
1.1
2.C
3.1











2.3
2.7
2.5


2.8
2.4
2.3
3.C

3.0
2.6
23
4.9
7-8
l:\
3.!
3.C
2.1
l.<
l.S
2 S
2.2










2.8
3.1
2.4


2.9
2.3
2.5

3 S
3.1
2.6
23
4.1
8-9
2.6
4.C
3.C
3.E
2.1
1.6
2.;
2.1
3.C










3.C
3.0
2.4
3.1

2.6
2.2
2.4
3g
3.2

2.4
2.8
22
4.0
9-IO
§:!
4.:
4.3
2.1
O.E
2.C
2.<
2.1


1.2







3.H
2.7
2.5
3.7

2.6
2.4
2.6
3.3

2.4
2.8
23
4.3
10-11
2.C
2.S
5 c
4.E
2.C
2.4
I.E
3.1
2.<










4.4
2.4
2.7
3.2

2.4
1 1-12
2.3
4.0

3.2
1.8
2.4
1.7
2.8
2.3










2.8
2.2
2.6
2.6

2.3
2.0 2.0
2.3
f. 1
3.8

2.4
3.0
22
5.5
2.9
4.3

2.4
2.6
21
4.3

MEAN
2.76
3.45
3.60
3.30
2.86
2.27
2.80
2.58
3.34


1 4?







2.79
2.83
2.82
3.12
1.96
2.02
2.49
2.58
3.39
3.49
3.07
2.80

4.02
NO.
OF
MRS.
2<
21
2?
22
2C
2<
21
24
21
24

21







23
21
24
21
24
24
22
24
24
21
24

521


MAX.
12.7
8.2
7.6
5.9
5.6
8.3
14.0
6.2
8.2
4. ft

2.B







6.3
4.9
15.7
5.4
9.8
4.3
5.0
9.5
9.5
13.3
7.5


15.7
  * Indicates Saturday or Sunday
    Local standard time used
                                                               TABULATED   WED. «  SEP.  10f  1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
I) S. Department o! Health. Education, and Welfare

Robert A. Tatt Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-57

          HOURLY AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
            FLAME  IONIZATION ANALYSIS
      CHlCAGOtlLL.
TOTAL HYDROCARBON
         SEPT.  1968
DAY
MONTH
2
3
4
5
6
7*
8*
9
10
11
12
13
16
17
18
19
20
22«
23
24
25

26
27
26*
29«
30
MEAN
NO
MAX
A.M.
12-1
2.4
1.9
2\(
1-2
!*!
2.3
2.4
2.1 2.1
2.4
6.1
2.6
l.{
3.2
2.4

I





i



•

i


6.0
2.2
10
6.1

2.1
3.9
2.4
11
3.9
2-3
2.0
1.8
2.5
2.4
1.1
l.fl
3.1
2.3


3-4
l.j
2.4
2.4
1.8
2.2
3.5
2.2


















I




1.8 1.7
3.9
2.2
11
3.9
6.01
3.0
11
6.0
4-5
l.f
1.1
2.4
2.6
1.9
2t*
4.6
2.2



5-6
1.9
2.0
3.1
2.5
3.0
5.2
2.5





'









i




1.7; 3.1
5.01 3.4
2.7
11
5.0
3.5
11
5.2
6-7
1.9
2.3
3.2
4.1
3.5
3.5
5.0
2.4












7-8
I:!
3.5
3.9
3,1
3.2
2.2








8-9
2.1
3.2
3.4
3.E
3.C
2.6
2.1













1

5.3
3.2
4.9
11
5.3



4.4 2.2
3.1 2.8
4.8
11
4.8
3.4
11
3.8
9- 1O
2.2
1.5
3.C
3.C
3.1
2.4
3.1
2.C















2.1
2.1
3.1
11
3.7
10-11
2.2
1.4
2.6
2.8
2.6
2 2
2.7
1.9















2.3
1.8
2.8
11
2.8
1 1-12
2.3
1.4
2.3
2.5
2.6
2.1
2.6
1.9















2.5
1.8
3.1
11
3.1
P.M.
12-1
2.C
itt
2,<
2.'
2.2
2.1

l.<















2.4
1.9
2.6
11
2.6
1-2
l.J
1.!
2.4
2.5

2.4
2.C















2.4
1.9

8
2.5
2-3
\:\
2.6
2.1
2.5
2.5
i.s















2.6
1.9

9
2.7
3-4
1.9
l.C
2.f
3.C
2.4

2.1
2.C















2.!
2.1

10
3.1
4-5
2.*C
3.2
3.4
3.1

2.6
2.2















2.2
2.2
3.5
11
3.5
5-6
£ * A
3 • 0
3.1
3.0
2.6

2.6
2.4















2.0
2.0
3.3
11
3.3
6-7
2.1

3.2
2.1

2.E
















1.9
2.4
3.2
11
3.3
7-8
2.4
2.1

2.1
2.!

2.1
3.1















1.8
2.3
2.8
11
6.6
8-9
2.2
2.'
2 <
2.<
2.6

2.1
















2.!
2.5
2.7
11
3.9
9-10
2.;
3.0
3.1
3.5
2.8


3.C















2.9
2.7
2.3
11
3.8
1O-1 1
l:\
3.C
3.1
2.1

2.1
2.1















4.4
2.6
2.1
11
5.0
1 1-12
2.3
2.1

3.6
2.7

2.8
2.4















4.5
2.7
5.6
11
5.6

MEAN
2.06
1.99
2.76
3.08
2.63
3 05
3.20
2.31















2.66
2.91
3.14
3.20-
NO.
OF
MRS.
2'
2'
24
22
24
2'
24
24















23
24
21
251

MAX.
3.0
4.3
5.1
9.9
5.7
16.8
11.7
3.7















6.2
6.9
13.3
16.8
  * Indicates Saturday or Sunday
    Local standard time used
                                                              TABULATED
                                                                          WED., SEP. 10, 1969

-------
     CONTINUOUS AIR MONITORING PROGRAM
     Ait Quality Section. Laboratory ol Engineering and Physical Sciences
     Division ol Air Pollution. Public Health Service
     U. S. Department ol Health. Education, and Welfare

     Robert A. Taft Sanitary Engineering Center
     Cincinnati. Ohio 45226
                 Table 3-58

          HOURLY.AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
            FLAME  IONIZATION  ANALYSIS
      CHICAGO.ILL.

TOTAL HYDROCARBON
          OCT.  1968
DAY
OF
MONTH
1
3
4
5*
6*
7
8
9
10
11
12*
13*
15
16
17
18
19*
20*
21
22
23
24
25
26*
27*
28
29
30
31
MEAN
NO
MAX.

12-1
2.1
1.6
2.0
7.2

A.M.
1-2
1.8
1.5
6.3
2.5

6.0 3.8
3.9 3.2
2.7 2.9
2.0 1.9
3.4 2.2
1.8 .8
1.8 .8
1.6 .6
1.8 .8
2.0 .8
3,7 .3
2.6 .7
1.7 .7
2.2 2.2


2-3
\l\
1.3
4.1



2.6
2.2
2.E
l.E
1.9
1.9
1.8
1.6
1.5
1.7
3. -2
2.1
1.7
1.9

4.0 2.6 l.fl
1.3 1.2
2.0 1.9
1.9! 1.7
2.1 2.9
2.5
27
7.2
* Indicates Sat
1.3
1.8
3.9
3.1
3-4

1.3
2.8



2.3
2.0
2.5
1.8
1.8
2.2
1.9
1.6
1.5
1.6
3.3
2.0
1.7
1.9

4-5
III
1.3
3.0



3.6
2.0
2.7
2.0
2.0
1.9
i.e
1.5
1.6
3.5
2.0
1.8
2.3
56
1:8
1.8
3.4



4.6
3.1
2)7
2.6
2.7
2.5
2.1
1.8
5.0
2.4
2.4
3.1

1.9 l.q' 2.3
1.3
1.9
5.8
3.3
2.2J 2.0 2.0
28 28 28
6.3 4.1 5.8
1.6
1.9
5.3
1.9
2.1
28
5.3
2.3
1.9
4.0
1.8
2.5
28
5.0
6-7
III
2.4



5.4
3.1
2.3
3.6
3.1
3.2
2.5
2.7
1.9
2.C
6.7
2.3
3.2
4.2

2.9
3.1
2.4
4.3
2.6
3.1
28
6.7
7-8
2.4
2.4
2.7
3.8



4.6
3.6
2.5
3.6
3.5
2l6
2.8
2.3
2.9
2)7
4.2
4.1

8-9

3!2


3.4
3.6
2.1
3.3
3.3
J:!
I:!
4.2
2.1
3.8

2.5 2.6
2.8
2.9
•4."
3.1
3.1
28
5.1
2.3
3.0
2.9
3.4
2.8
25
4.2
P-1O
ue
2.1
2.2


2.4
3.7
2.C
3.1
2.6
1.8
1O-1 1
2.1
2.3
2.1


2.2
3.3
2.1
2.5
2.9
2.9
2.3
2.1
1.9
*.i 3.i
2.2 2.0
3.0 3|c
2.5; 2.3
2.3
2.7
2.5
3.2
2.5
23
3.7
2.3
2.3
2.4
3.C
2.4
23
3.3
1 1-12
2.2
1.8
2.2
2.1

2.3
5.3
2.0
3.0
2.8
3.0
2.4
2.2
2.0
1.9
2.4
2.0
2.5
2.9
2.9
2.2
2.4
2.2
2.4
3.4
2.5
26
5.3
P.M.
12-1
2.2
1.9
l.E
2.!
3.C

2.2
2.3
4.!
2.2
3.0
2.7
3.1
2.3
2.2
2.1
1.9
2.0
2.4
3.0
2.7
2.3
2.1
2.4
3.3
2.5
26
4.5
1-2
III
2.C
2.3
2.C

2.4
2.2
3.1
2.4
3.0
3.0
2.8
2.4
2.1
2.0
1.9
2.0
2.4
2.9
3.0
2.8
2.0
2.4
3.3
2.4
26
3.3
2-3
III
2.C
2.4
2.C


2. A
2.8
2.3
3.4
3.2
2.9
2.6
2.3
2.C
2.0
3.2
2.1
2.3
3.4
4.2
2.4
2.1
2.7
3.4
2.6
26
4.2
3-4
1:3
2.2
Z.f
2.3


2.5
3.5
2.3
3.5
3.6
2.9
3.C
2.3
2.C
2.1
2.1
2.3
2.4
3.2
3.6
2.3
2.4
4.0
2.7
25
4.0
4.5
2.2
2.!

3.1
2.6
4.4
2.2
3.S
3.6
2.9
3.0
2.4
2.C
2.C
* 1
2.5
2.6
3.5
3.6
2.2
3.3
2.6
5.8
2.9
27
5.fi
5-6
III
2.0
2.5
1.8

3.3
1.6
4.9
2.8
3.7
3.4
2.8
2.4
2.3
2.0
2.0
4.3
2.1
2.3
3.1
2.9
2.3
3.5
2.6
2.5
6.9
2.8
28
6.9
6-7
III
l.E
2.!

3.6

1.5
4.4
2. S
3.2
2.6
2.6
1.9
2.5
2.3
2.4
2.6
2.1
2.5
2.6
2.5
2.9
2.6
2.6
4.9
2.6
28
4.9
7-8
i:!
|:|

4 2

3.6
4.C
2.1
3.1
2.5
2.4
1.9
2.3
2.4
2.6

2.1
Zl'
2.6
2.6
2.5
2.3
2.1
5.1
2.6
28
5.1
8-9
i:|
2:!
i.e

3.9

3.9
4.3
2.9
2.9
2.3
2.1
2.C
2.1
2.2
2.3
?
2.3
aj:
2.2
9-10
1.1
2.6
1.1
2.2
2.C

3,t

3.6
4.6
2.*;
2.1
2.2
2.2
2.1
4.2
2.3
3.1
? (1
3.3
2.6
2.3
2.4
2.5J 2.2
2.3
2.!
2.C
4.1
2.6
28
5.1
2.1
2.4
2.0
2.9
2.5
28
4.6
10-11
ii<
4.C
2.C

4.1

3.6
3.J
2.1
4.C
2.1
2.3
l.E
3.2
2.2
4.1
l.q
1 1-12
2.6
1.6
1.6
7.3
2.2

3.9

3.2
3.9
2.3
4.5
2.0
2.0
1.7
1.9
2.1
3.7
2.? 2.6
2.5 2.8
3,1) 3.B
2.31 2.4
2.l! 1.9
2.0
2.2
2.3
2.6
2.5
28
4.1
2.1
2.1
2.2
2.3
2.7
28
7.3
DAILY
MEAN
l;il
1.74
2.46
2.86
2.22
2.94
3.22
3.63
2.48
2.98
2.72
2.59
2.21
2.32
1.98
2.17
3.39
2.20
2.42
2.97
2.71
2.39
1.56
2.24
2.27
2.91
3.43
2.54
3.63
NO.
OF
MRS.
22
2<
22
2«
24
22
19
23
24
24
22
24
24
24
22
24
24
22
24
22
24
22
2*
24
20
24
22
2<
646
5-MIN.
MAX.
nil
2.7
12.6
10.9
3.8
12.9
10.8
11.8
3.6
14.5
6.3
5.1
3.7
8.1
3.1
4.7
8.0
5.5
5.3
8.1
7.1
7.0
2.2
4.5
3.6
6.8
12.0
17.3
urday or Sunday TABULATED WED.. SEP. 10, 1969
d ime used
CO

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division ot Air Pollution. Public Health Service
U. S. Department ol Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-59

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
            FLAME  IONIZATION ANALYSIS
      CHlCAGOtlLL.
TOTAL HYDROCARBON
          NOV.  1968
DAV
MONTH
1
2*
3«
4
5
6
7
8
9*
11
12
13
15
16*
17*
18
19
20
21
22
23*
24*
25
26
27
28
29
30*
MEAN
NO
MAX.

12-1
3,j
2.1
2.4
2.0
1.8
A.M.
1-2
2.2
2.2
2.1
l.S
1.7
2.3 l.S
2.1

1.7



2.2

2.0
2.0 1.6
2.1
1.9
2-3
2.1
1.9
1 .«
l.E
l.S
1.7
1.6





3-4
2.1
i.a
1 .e
1.8
2.1
1.6
1.5





1.91 1.9
1.9! i.e
l.S 1.7
1.9 1.8 l.Tj 1.7
2.1
3.1
2.5
2.0
2.2
1.8
2.1
2.6
2.7! 2 .,2 1.8
1.91 l'S l«fl
4.0. 2.2 2.2
1.8; 1.7
2.0! 1.9
li? 1.6
1.9
2.1
l.R 1.7
2.7
2.3
21
3.8
6.9
2.3
22
6.9
1.8
2.1
1.7
2.4
1.9
22
2.4
4-5
2.1
2.1
l.S
l.S
2.4
1.6
1.5




1 A
5-6
2.2
2.0
1.8
2.3
3.0
1.7
1.6





l.S 1.7
1.4 1.8
1.7| 1.7
1.7
1.8
l.B 1.9
1.8 1.9
2.1! 2.1
1.8 1.7) 1.8
1.7 1.7 1.8
1.5 1.6! 2.0
1.7 1.6l 1.6
1.8 1.8' 1.7
1.7
2.3
1.8
22
2.3
1.7j 1.8
2.2
2.2
1.8| 1.9
22 22
2.4 3.0
6-7
2.4
2.1
1.8
3.3
3.5
3.2
2.3




1 9
i.a
2.1
7-8
2.1
2.5
1.8
3.7
4.V
3.7
2.8





8-9
2.1

l.S
2.S
3.2
3.9
3.0






2.4! 2.5
9- 1O

2.!
l.S
2.2
3.1
3.6
2.9




2 5
1.9
2.4
10-11

2.5
l.fl
2.2
2.7
3.3
2.6




2 t
2.0
2.4
2.Q 2.2j 2.31 2.3| 2.2
2.0 2.3 2.4
2.J 2.2 2.3
2.4] 3.0 3.1
2.2! 2.3' 2.4
1.8,' 1.8 1.8
2.6J. 3.", 3.5
2.6, 3.i1 3.5
2.7
1.8
2.2
2.1
2.3
22
3.5
3. a 3.1
2.l! 1.8
2.6! *.0
2.2
2.6
22
4.V
2.3
2.7
22
4.0
2.2 2.2
2.3 2.4

2.3
1.7
3.0
3.1

2.3
1.9
3.0
2.4
2.3' 2.1
i.a 2.c
2.5 2.5
2.2
2.J
20
3.6
2.4
2.4
20
3.3
1 1-12

2.2
1.9
2.5
2.5
3.0
2.5





2.0
2.3
2.1
2.0
2.4
4.5
2.3
1.9
2.7
2.3
2.2
1.8
2.3
2.5
2.4
21
4.5
P.M.
12-1
2.4
2.2
2.1
2.<
Z.I
2.S
3.1





2.C
2.3
2.1
2.0
2.3
3.7
2.4
1.9
2.2
2.2
2.1
1.8
2.3
2.4
2.3
21
3.7
1-2
2.!
2.'
2.1

2.3








2.C
2.C
2.2
2.0
2.5
3.2
3.1
1.7

2.3
2.1
1.9
2.3
2.6
2.4
19
3.7
2-3
2.<
2.<
2.!

2 4







3.1
2.3

2.1
2.2
2.5
3.1
2.7
1.8

2.3

2.0

2.5
2.5
16
3.7
3-4
2.1

2.4
3.2
3.2
3.1







2.3

2.31

2.G
3.2
2.5
1.8
2.9
2.5
3.4
2.1
2.9
2.5
2.8
20
3.7
4-5
3.C
3.!
2.'
3.1
3.-
3.F







2.2

2.5

2.9
3.7
2.!
2.2
3.0
3.2
3.3
2.1
2.7
3.0
3.0
20
3.8
5-6
3.1
3.2
2.3
3.1
3.2
3.9







2.5
3.4
2.4
2.6
3.0
3.9
2.4
2.4
2.8
3.4
3.9
2.1
2.9
2.8
3.0
22
3.9
6-7
2.9

2.4
4.'
2.4
3.2
3.C




2- t
2.2
2.S
2.2
2.4
2.!
3.4
2.2
2.2
2.2
2.7
3.1

2.6
2.9
2.7
22
4.3
7-8
2.1
2.:

2.<
2.2
2.4
2.S





2.2

2.C
2.3
2.1
2.9
2.C
2.3
2.4
2.3

2.1
2.3
3.2
2.4
21
3.2
8-9
2.'

2 '
2.:
2.2
2.2





2.4
2.1
2,t
2.2
2.5
2.C
2.9
2.2
2.1
2.9
2.4
2.4
2.1
2.4
3.3
2.5
22
3.4
9-10
2 4
2.!
?.l
Z.t
2.1
2.4
3.2




2 «
2.2
2.1
2.1
2.3
2.C
2.e

2.1
3.4
2.3
2.4
2.C
2.!
3.0
2.4
22
3.4
10-11
4.'
2.!
2.-
2.1
2.2
2.'
2.4




2.8
2.1
2.1
2.1
2.2
2.2
3.4
l.S
2.C
1 1-12
3.3
2.7
2.1
2.0
2.4
2.1
2.1




2.5
2.0
2.4
2.1
3.0
2.1
2.7
2.0
2.1
2.3. 2.0
2.2 2.2
2.4J 3.0
2.2
2.4
3.0
2.4
22
4.4
2.1
2.3
2.7
2.3
22
3.3

MEAN
2.69
2.44
2.10
2.53
2.58
2.71
2.62




? « .
2.05
2.28
2.08
2.13
2.28
2.90
2.35
1.92
2.50
2.38
2.46
1.98
2.34
2.75
2.39
2.90
NO.
OF
HRS.
J,
2<
2<
2!
2<
22
24




2i
24
21
24
22
24
22
24
24
22
24
2'
24
22
24
507

MAX.
9.1
3.8
3.2
14.1
5.4
5.2
7.9




4.1
3.6
4.8
3.5
6.4
3.9
7.0
6.6
2.7
4.2
4.7
5.2
3.6
14.4
15.2
15.2
  * Indicates Saturday or Sunday
    Local standard time used
                                                              TABULATED
                                                                          MED..  SEP. 10,  1969

-------
     CONTINUOUS AIR MONITORING PROGRAM
     Air Quality Section, Laboratory of Engineering and Physical Sciences
     Division of Air Pollution. Public Health Service
     U. S. Depaitment of Health. Education, and Welfare

     Robert A. Taft Sanitary Engineering Center
     Cincinnati. Ohio 45226
                 Table 3-60

          HOURLY AVERAGES OF
GASEOUS  POLLUTANT CONCENTRATIONS


             CONCENTRATION IN PPM
            FLAME IONIZATION  ANALYSIS
      CHICAGO,ILL.
TOTAL HYDROCARBON
          DEC.  1968
DAY
MONTH
1«
2
3
4
5
6
7*
8*
9
10
11
12
13
14*
15.
16
17
18
19
20
21*
22*
23
24
25

26
27
28*
29*
30
31
ME AN




121 I 1-2
2-
2.5 2.5
5.9, 3.«
2.1 2.2
1.8 1.7
2.1 2.3
2.4 2.1
2.3 2.1
3.3 2.9
1.9 1.9
2.0 2.0
2.4 2.1
2.2 2.4
2.2 2.2
2.5 2.4
2.3 2.3
5.0 2.7

2-3 3-4
2.3 2.
2.5 2.
3.1 3.
2.C 1.
1.7 1.
1
1.9 1.
2.9 2.
2.1) 2.
3.1 3.
1.8 1.
1.9 1.
2.1 2.
2.1 1.
2.2 2.
2.3 2.
2.2! 2.
2.8 2.
2.3 2.3 2.2 2.
2.0 1.8 1.9, 1.
2.1 2.3
1.* 2.
2.5 *.6 2.41 2.
2.1 1.9 1.9 1.
1.8 1.7 1.7 l.
2.5 2.6 3.1 2.
2.4 2.2

1.9 2.1
2.7 2.f
2.1 2.

1.8 1.
2.7 2.
2.7 2.5 2.3 2.
2.4 2.1
1.9. 1.
2.3 2.0 1.8 2.
I :
2.1 2.1
2.Q 2.
2.5 2.3i 2.2 2.
31 30
31 1 31
5.9 3.6i 3.1: 3.

* Ind catei Saturday o

Sunday
used
A.M
4-5 5-6
3 2.2. 1.8
3 2.? 2.3
I 3.1 2.9
S l.f 1.9
1 1.7 1.7
e i."i 1.9
2 2.1! 2.1
0 2.0 2.0
1 2. a 3.1
1] 1.9 2.0
9 2.0 2.0
1 2.0 2.0
9 1.9 1.9
3 2.-1 2.1
2 2.2 2.3
2 2.2 2.2
S 2.9 3.1
2 2.1 2.3
8] 1.9. 2.1
0 2.0 1.9
Z 2.i 2.2
i 1.7 1.7
7, 1.7 1.7
2 2.2 2.2
1 2.0 2.1

7 1.7 1.7
8 2.5 2.4
l| 2.0 1.8
9 l.ft 1.8
0| 1.9 1.9
5j 2.3, 1.9
1 2.1| 2.1
31 31
1 3.1 3.1

6-7 7-
l.f 1
2.6 3
3.7! 4
2.2 2
l.E 2
2.1 2
2.1 2
2.Q 2
3.0 3
M 2
2.3 2
2.3 2
2.1 2
2.2; 2
2.3
2.5 2
3.6 3
2.9 2
2.4; 2
2.0 2
2.2; 2
i.r i
2.0 2
2.4 2
2.1 2
1
1.9 2
3.1 3
1.9| 2
i.a l
2.3| 2
1
2.1J2
2j 2

3 8-9
.] 1.1

«" 3,<5
.< 2.1
0-10
1.1
3.6
3.2
2.5
.S 2.1| 2.1
.2 2.E
.2 2.2
. 2.1
.6 *.i
,«|2.l
.9 2.9
.5, 2.5
.2 2.2*
2.2
2.4
10-11
l.f
3.3
2,e
2.t
2.1
2.«
2.<
2.2 2.1
3.6 3.6
2.U. 2.2
1 1-12
2.0
3.0
2.8
2.2
2.1
2.4
2.4
2.1
3.4
2.2
2.8 2.4 3.0
2.6 2.9 2.4
2.1 2.11 2.1
,2j 2.4 2.4 2.«i 2.5
' !
.9 2.8, 2.8

2, a
.7, 2. 9 2.8! 2.7
.8 2.TJ j
.8 3.q 2.7, 2.6
.6 2.5

.3 2.4 2.5, 2.1
.7 1.8 1.8 1.9
.1 2.31 2.1 2.0
.!> 2.9 2.6 2.5
.2 2.2 2.1 2.2
1
.1 2.3J 2.3| 2.3
.5 3.6) '
.0 2.3l 2.4' 2.2
2.3
2.6
2.5
3.1
2.6
2.5
2.9
2.1
2.2
2.7
2.2

2.2
3.8
2.3
.9 2.Q 1.8 1.9 1.9
.4 2.3
.2. 2.3

31 i 30 ! 30
3.71 4


,1 ^.9
• -] »T
2.4
2.3
2.4
27
3.6

2.4
2.1
2.4
27
3.6

2.3
2.1
2.5
31
3.8

P.M.
12-1
2.C
3.1
2.9
2.'
2.C
2.3
2.1
2.1
3.C
l.
-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health, Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-61

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE  ANALYSIS
 CHICAGO.ILL.
TOTAL OXIOANT
     JAN.  1968
DAY
MONTH
1
2
3
5
6«
7#
8
9
10
11
12
13*
15
16
17
18
19
20*

21*
22
23
24
25
26
27«
26*
29
30
31
MEAN
NO
MAX.

12 1





















.00




.00
.00



.00

1-2





















.00

.00

.00
.00
.00



.00

2-3

































3-4





















.00

.00

.00
.oc
.00



5
.00

4-5





















.00

.00

.00
.00
.00



5
.00
A
5-6





















.00

.00

.00
.00
.00



• 00
M.
6-7





















.00

.00

.00
.00
.00,



.00

7-8





















.00

.00

.00
.00
.01



.01

8-9





















.00

.00

.oc
.00
.01



.01

9- 1O





















.00

.00

.00
.oc
.01



.01

10-11





















.00



.oc
.oc
.01



.01

1 1-12





















.00



.00
.00
.02



.02

12-1





















.00

.00

.oc
.oc
.02



.02

1-2





















.00

.00

.00
.01
.02



.02

2-3

































3-4































.

4-5





















.00

.00

.oc
.04




.04
p
5-6





















.00

.00

.00
.04




.04
M.
6-7





















.00

.00

.oc
.02




.02

7-8





















.00



.00
.02




3
.02

8-9





















.00



.00
.01




.01

9-10





















.00



.oc
.01




.01

1O-1 1







-

















.oc
.oc




.00

1 1-12

























.00
.00




.00

MEAN





















.000

.000

.000
.007
.008



.008
NO.
OF
HRS.





















19

13

2C
21
13



86

MAX.





















.00

.00

.02
.08
.04



.08
  * Indicates Saturday or Sunday
    Local standard time used
                                                               TABULATED   WED.t  SEP.  10»  1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division ol Air Pollution, Public Health Service
U.S. Department ol Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-62

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM  IODIDE  ANALYSIS
 CHICAGO,ILL.

TOTAL OXIDANT
     FEB.  1968
DAY
MONTH
1
2
3*
5
6
7
8
9
10*
11*
12
13
14
15
16
17*
18*
19
20
21
22
23
24«
25*
26
27
28
29
MEAN
NO
MAX.

12-1








A.M.
1-2







.OC
.00 .00
2-3









3-4







.OC
.00
.00 .oq .oc
.00 .oq
.00 .OC
.00 .oq



.OC
.00 .OC
.00 ,OC
.00 .00
.OC

.oc
i >ocl





.00 .001





t

.00
.00 .00




.00 .00
.00 .00
12
.00
.00








.00
.OC
.op
.oq
.00



.00
.00


.00
.00
15
.on
4-5







5-6







.od .00
.00
.oq
.on
.oc
.on

.on
.00
.on
.00
.00



.on
.00


.00
.00
.00
.00
.00

.00
.00
.00
.00
.00



.00
.00


.00 .00
.00
15
.00
.00
15
.00
6-7







.00
.00
.00
.00
.00
.00

.00
.00
.00
7.3







.00
.00
.00
.00
.00
.00

.00
.00
.00
8-9







.OC
.00
.OC
.OC
.OC
.OC

.OC
.OC
.OC
.oq .oq .oq
.oq .00



.00
.00


.00
.00
15
.00



.00



.00 .OC
.oq .00




.no1 .oc
.OQ
15
.00
.00
15
.00
9- 1O







.00
.00
.00
.00
.00
.00

.OQ
.00
.00
IO-I 1







.OC
.OC
.OC
.OC

.OC

.or
.OC
.or
.oq
.00



.00
.00


.00
.00
15
.00
.00



.00
.00


.00

12
.00
11-12







.00
.00
.00
.00

.00


.00
.00

.00



.00
.00


.00

11
.00
P.M.
12-1







.OC
.00
.OC
.OC

.00


.OQ
.OQ

.00



.00
.00


.00
.00
12
.00
1-2







.OC
.OC
.OC
.OC

.OC


.OC
.OC

.00



.OC
.01


.OC
.00
12
.01
2-3















.00
.00





.00
.00




.00
34















.OC
.00





.00
.00




.OQ
4-5







.OC
.OC
.OC
.OC
.OC


.or
.OC
.or

.OC



.OC
.00



.00
12
.OC
5-6







.00
.00
.00
.00
.00


.00
.00
.00
.00
.00



.00
.01


.00
.00
14
.01
6-7







.OC
.OC
.OC
.OC



.DC
.oq
.00
.OQ
.00



.00
.01


.00
.00
13
.01
7-8







.OC
.OC
.OC
.OC
.OC


.OC
.00
.no
.OQ
.OC



.00
.02


.OQ
.OQ
14
.02
8-9







.OC
.OC
.OC
.OC
.or


.on
.00
.00
.OQ
.OC



.00
.01


.00
.OC
14
.01
9-10







.OC
.OC
.OC
.OC
.or


.or
.oq
.oq
.OC
.OC



.OC
.OC


.oq
.OC
14
.OC
10-11







.OC
.OC
.OC
.OC
.or


.OC
.00
.or
.OC
.00



.oq
.00


.00
.OC
14
.OC
1 1-12







.00
.00
.00
.00
.00


.00
.00
.on
.00
.00



.00
.00


.00
.00
14
.00
DAILY
MEAN







.000
.000
.000
.000
.000
.000

.000
.000
.000
,000
.000



.000
.003


.0.00
.000
.003
NO,
OF
MRS.







20
21
21
21
16
13

n
23
21
16
21



22
23


2C
IS
296

MAX.







.00
.00
.00
.00
.00
.00

.00
.00
.01
.00
.00



.01
.04


.01
.00
.04
    Indicates Saturday or Sunday
    Local standard time used
                                                               TABULATED
                                                                                  SEP.  10.  1969

-------
CO
     CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department ol Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-63

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                      CONCENTRATION IN PPM
                                                                      POTASSIUM IODIDE  ANALYSIS
                                                                                   CHICAGO,ILL.
                                                                                  TOTAL OXIDANT
                                                                                     MARCH  1966
DAY
MONTH
1
2«
3«
4
5
6
7
8
9«
10«
11
12
13
14
15
16*
17«
18
19
20
21
22
23«
24«
25
26
27
28
29
30«
31,
MEAN
NO
MAX

12-1
.OC
.0(
.oc
.00
.01
A.M.
1-2
.00
.00
.00
.00
.00
.02! .02
.031 .03
.oq .00
.06
.03
.031 .02
.01
2-3










.01
.02 .02
.00
.00
.00
.02
.05
.01
.01
.01
.01
.00
.00
.00
.00

.01
.02
.01
.00
.02
.01
30
.06
.00
.oc
.00


3-4
.OC
.oc
.oc
.oc
.oc
.03
.03
.OC
.03
.02
.00
.02
.00
.00

.01
.04
.011
.01
.00
4-5
.00
.Or
.or
.00
.00
.02
.01
.00
.03
5-6
.00
.00
.00
.00
.00
.02
.00
,00
.02
.02 .02
.oq .00
.01! .01
.oc
.Of
.00
.00
.00
.00
.01 .00 .01
.07
.02
.01
.001 .00
.01
.00
.00



.00
.01,
.01
.01
.02!
.01
.00
.01
.01
31
.04






.01
.OC
.oc
.oc
.00
.01
.02
.01
.01
.01
.01
.01
31
.07
.05! .03
.01
.01
.Or
.01
.00
.00
.02
.00
.00
.00
.oq .00
.00] .00
.00 .00
.01
.01
.01
.01
.01 .01
.Ol! .02
.00 .00
.00
.01
31
.05
.00
.01
31
.03
6-7
.OC
.01
.oc
.oc
.oc
.04
.02
.01
.02
.01
7-8
.OC
>0(
.oc
.oc
.01
.02
.02
.01
,0t
.01
8-9
.OC
.oc
.oc
.oc
.01
.02
.02
.02
.02
.02
.01 .02; .02
.01 .02|
.00
.00
.00
.oc
.oc
.oc
.01! .0*
.031 .021
.02
.OC
.oc
.01
9- IO
.OC
.oc
.oc

.01
.02
.02
.03
.03
.02
.02
.01
.OC
.oc
.01
.05 .04,
1O-1 1
.OC
.OC
.oc

.oc
.02

.02
.02
.02
.01
.OC
.OC
.oc
.01
.02
.04! .OS .03
.Oil .02 .03! .03!
.03{ .03 .04| .03| .02]
.00
.02
.OC
.OC
.00
.00 .00
.03i .04
.001 .00
.00 .OC
.00 .OC
.01! .01 .02
.02J ,02| .03
.02 .03 .03
.01
.03
.00
.00
.01
31
.04
.02 .03
.04 .05
.00' .00
.01
.01
31
.04
.01
.02
31
.05
.00 .00
.02 .02
.00 .OC
.oq .oc
.01 .01
.01
.02 .03
.02

.031
.01
.02
.01
29
.04
.03

.03
.02
.01
.01
26
.03
1 1-12

.00
.00

.00
.02

.04
.03
.03
.00

.00

.01
.00
.01
.02
.02
.01

.00
.00
.01
.01
.02
.04

.03
.03
.02
.01
24
.04
P.M.
12-1

.OC
.oc

.01
.02

• 0<
.02)
.02
.OC

.OC

.00
.01
.02
.02
.03
.02

.01
.OC
.01
.02
.03
.04
.02
.02
.03
.02
.02
25
.04
1-2

.OC
.oc

.02
.02
.04
.04
.04
.02
.OC

.OC

.00
.01

.02
.03
.03

.01
.OC
.01
.02
.02
.04
.03
.01
.03
.02
.02
25
.04
2-3


.OC



.05
.0!




.OC


.02






.OC



.05
.03
.01
.03
.02

11
.05
3-4
.OC

.oc



.04
.0!




.OC


.03






.OC

.02

.04
.03
.02
.04
.02

13
.05
4-5.
.OC
.oc
.oc
.02
.0!
.02
.0!
.1C
.02
.03
.01
.OC
.oc
.oc
.04
.02
.02
.02
.03
.02
.OC
.02
.OC
.01
.01
.02
.04
.02
.02
.03
.02
.02
31
.10
5-6
.00
.00
.00
.02
.04
.03
.05
.09
.03
.02
.02
.00
.00
.00
.04
.02
.02
.02
.03
.02
.00
.01
.00
.'01
.02
.02
.04
.01
.02
.02
.02
.02
31
.09
6-7
.OC
.oc
.oc
.0;
.0*
.02
.0!
.01
.02
.01
.02
.00
.OC
.OC
.03
.02
.01
.01
.02
.02
.00
.01
.oq
.00

.02
.04
.01
.01
.02
.02
.02
30
.07
7-8
.00
.oc
• 0(
.0!
.02
.01
.0'
.0?
.02
.02
.02
.OC
.OC
.OC
.02
.02
.01
.02
.02
.02
.00
.OC
.OC
.01
.01
.06
.03
.01
.oc
.03
.02
.02
31
.09
8-9
.Of
.oc
.oc
.Of
.0*
.02
.05
.Of
.0<
.01
.0?
.oc
.oc
.oc
.02
.0?.
.02
.02
.01
.02
.00
.00
.OC
9-10
.Of
.OC
.oc
.0;
.03
.02
.02
.07
.02
.01
.02
.00
.OC
.OC
.02
.03
.04
.02
.02
.02
.00
.OC
.00
.00 .01
.01
.0?
.02
.01
.01
.02
.02
.02
31
.09
.01
.07
.02
.01
.OC
.02
.00
.02
31
,07
1O-1 1
.Of
.OC

.01
.02
.0?
.01
.1C
•,0<
.02
.07
.00
.OC
.OC
.03
.06
.02
.02
.01
.01
.00
.00
.00
.00
.02
.06

.01
1 1-12
.00
.00
.00
.01
.02
.03
.02
.09
.04
.01
.02
.00
.00
.00
.03
.10
.01
.02
.01
.01
.00
.00
.00
.00
.02
.01
.02
.01
.oq .01
.o2
.00
.02
30
.02
.00
.02
31
.10 .10

MEAN
.000
.000
.000
.013
.016
.024
.029
.044
.031
.019
.011
.008
.000
.000
.014
.024
.030
.016
.020
.010
.009
.003
.000
.004
.011
.029
.027
.015
.017
.017
.012
.015

.044
NO.
OF
MRS.

21
22
If
2]
21
2r
22
21
21
21
IE
22
If
21
23
2C
2f
21
21
If
21
2'
21
20
2C
22
2C
23
23
23

646


MAX.
.00
.00
.00
.16
.08
.10
.08
.16
.09
.05
.06
.03
.00
.00
.07
.18
.11
.04
.07
.05
.07
.04
.01
.03
.04
.14
.06
.04
.06
.05
.05


.18
       * Indicates Saturday or Sunday
        Local standard time used
                                                                                                                   TABULATED
                                                                                                                               WED.,  SEP. 10, 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U.S. Department of Health. Education, and Welfare

Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 4522S
                  Table 3-64

           HOURLY. AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE ANALYSIS
 CHICAGO,ILL.
TOTAL OXIDANT
    APRIL 1968





























C£
DAY
MONTH
2
3
4
5
6«
7«
8
9
10

11
12
14*
15
16
17
18
19
20*
22
23
24
25
26
27«
28»
29
30
MEAN
NO
MAX.

12-1
.oc
loi
.01
.01
.oc
.oc
.01
.oc



.osj
.02


.01


A.M.
1-2
.oc
.01
.01
.01
.oc
.oc
.Ul
.oc
.oc


.02
.01


.02


•°2 »°?
.01
2-3


















.02|
.01! .02]







.03
15
.03
i






.05
.01
16
.05








3-4
.OC
.oc
.01
.01
.oc
.oc
.01
.oc
.oc


.01



.01


.02
.03
.01







.04
15
.04
4-5
.OC
.or
.01
.01
.oc
.oc
.01
.oc
.oc


.01
.01


.01


.01
.02
.01





5-6
.00
.01
.01
.00
.00
.01
.00



.01
.01


.01


.01
.02
.01







.03
.01
16
.03
.04
15
.04
6-7
.OC
.oc
.02
.02
.OC
.oc
.01
.01



.02
.02
.03
.02
.02

.03
.02
.02
.01


7-8
.01
.oc
.02
.01
.01
.oc
.01
.01



.01
.02
.02
.02
.02

.04
8-9
.01
.oc
.OS
.01
.01
.01
.02
.01
.02


.01
.03
.03
.02
.02

.04
.02 .02;
.or
.01



I



.04
.01
18
.04



.04
.02!
18
.04
.01
.02







.03
.02
19
.04
9-10
.OC
.02
.01
.OC
.01
.02
.01



.OC
.02
.04
.01
.03

.03
1O-1 1
.01
.01
.01

.02
.02

.02


.01
.02
.04
.01
.02


.03 .01
.02
.02







.02
.02
17
.04
.03
.03







.02
15
.04
1 1-12
.02

.01

.02
.03

.02


.02
.03
.04

.03



.02
.03






.04
.03
13
.04
P.M.
12-1
.02
.02

.01

.02
• 0<
.02
.02


.02
.02
.06

.03



.02
.03






.04
.03
15
.06
1-2
.02
.01

.01

.02
.04
.02
.01


.02
.02
.0!



.04

.02
.03






.06
.04
15
.06
2-3
.03



.02

.02




.03
.03













.05

6
.05
3-4
.03
.03



.02





.04
.03
.04













.0!

7
.0!
4-5
.04
.02
.01

.02
.01
.02
.01


.04
.02
.04
.02
.01

.02
.02
.02
.04






.02
.05
.02
19
.05
5-6
.04
.03
.03
.02
.02
.03
.03

.00


.04
.03
.03
.02


.03
.03
.01
.03






.04
.03
.03
18
.04
6-7
.03
.02
.02
.02
.02
.02

.OC


.02
.02
.02
.02


.03
.02
.OC
.04






.04
.03
.02
18
.04
7-8
.0:
.02
.01
.01
.02
.02
.02
.01
.OC


.02
.02
.02
.02


.02
.02
.01
.03






.02
.03
.02
19
.03
8-9
.04
.02
.02
.02
.02
.01
.02
.OC
.OC


.02
.04
.02
.01


.02
.02
.01
.04






.01
.03
.02
19
.04
9-10
.01
.02
.02
.01
.01
.01
.02




.02

.02
.02


.03
.02
.01
.04






.02
.02
.02
16
.04
10-1 1
.01
.02
.01
.OC
.01
.01
.01

.OC


.02

.02
.01


.02
.02
.01
.04






.02
.03
.02
17
.04
1 1-12
.01
.02
.01
.00
.00
.01
.02

.00


.02


.02


.02
.02
.01
.03






.02
.02
.01
16
.03

MEAN
.016
.014
.017
.011
.007
.013
.021
.007
.007


.021
.024
.032
.016
.019

.029
.018
.015
.024






.033
.032
.019
.033
NO.
OF
MRS.
2(
K
21
It
2'
21
I'
1!


2!

n
i;
11

H
18
21
21






13
21
362

MAX,
.07
.08
.06
.03
.04
.05
.05
.03
.03


.05
.06
.10
.04
.04

.06
.06
.03
.06






.09
.06
.10
  * Indicates Saturday or Sunday
    Local standard time used
                                                                TABULATED   WED..  SEP, 10, 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section. Laboratory ol Engineering and Physical Sciences
Division of Ail Pollution, Public Health Service
U. S. Department ol Health. Education, and Welfare


Robeit A. Tall Sanitaiy Engineeiing Center
Cincinnati. Ohio 45226
                  Table 3-65

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
                                                                  CONCENTRATION IN PPM
                                                                 POTASSIUM  IODIDE ANALYSIS
                                                                                   CHICAGO.ILL.
                                                                                  TOTAL  OXIDANT
                                                                                             1968
DAY
MONTH
2
3
4«
5«
6
7
8
9
10
lift
12«
13
14
15
16
17
18*
19«
20
21
22
23
24
25«
26«
27
28
29
30
31

NO
MAX.
A.M.
12-1



.02
.01
.02
.03
1-2


.02
.03
.01
.03
.03
.02 .02
.01 .01
2-3









3-4







.02
.02
.03 .02 .02
.04, .Ol
.03| ,03l
.0*
.03
.05 ,05j .03
.02 .01 I .01
.01 .01
.02 .02
.03 .03
.01 .01
.04 .04
.ozi .01
.0} .02
.01 .01






.02 .021
.04 .03
.03 .02
.01 .01
.Oil .01




.01] .01
.02
.04
.02
27
.05
.02
.03
.02
28
.05






a-5


.02
.0?
.Of
.02
.02
.02
.01
5-6


.01
.02
.00
.02
.04
.03
.04
.02* .03
.04 .03
.02
.02
.01
.04
.02
.04
.02| .02
.02 .03
.Oil .02 .03
.01| .01
.01
.01

.01
.03
.02
.02
.00
.01
.01
.03
.02
.02
20
.04
.01
.01; .03
.02 .05
.0? .04
.01 .03
.02) .03
.02j .02
.021 .02
.01 .02
.Oil .01
.01! .02
.02 .02
.03
.02
28
.04
.05
.03
28
.05
6-7


.01
.02
.01
.02
.02
.02
.04
.03
.03
.0'.
.02
.06
.02
.03
.02
.01
.05
.04
.03
.03
.04
.03
.02
.02
.03
.03
.02
.07
.03
28
.07
7-8


.02
.02
.01
.02
.03
.03
.04
.04
.0;
.06
.04
.06
8-9


.02
.02
.02
.02
.02
.02
.03
.04
.0<
.05
.03
.0!>
.01 .01
9- 10


.Oil
.02
.02
.02
.031
.02
.04
.04
.04

.02
.05
• 01
1O-I 1


.0:
• 02

.0<
.02

.04
.0<
.07

.02
.07

.05| ,04| .051 .0!
.OZ .02J .03 .02
.02 ,02| .02 .03
.05 .03
.03, .02
.06 .04
.04 .03
.04! .03
.04
.02
.03
.02
.03 .02
.031 .02
.03! .03
.02
.05
.03
28
.06
.02
.04
.03
28
.05

.02
.02
.03
.03J
.04
.02
.02
.02
.02
.03

.03
25
.05

.0?

.0?

.04
.02
.02
.0?
.02
.03

.03
20
.07
1 1-12


.03
.02

.04
.03

.05
.05
.06

.02
.03

.04
.03
.01
.02
.03

.03
.03
.05
.02
.02
.02
.02
.03

.03
22
.06
P.M.
12-1


.0:
.0!
.0;
.0<
.03
.03
.04
.04
.07

.02
.03

.04
.03
.02
.02
.01

.03
.03]
.05
.02
.02
.0?
.04
.03
.07
.03
25
.07
1-2


.04
.02
.02
.04
.03
.02
.04
.0"l
.05

.03
.03
.02
.03
.03
.02
.02
.03
.02
.04
.04
.05
.02
.02

.04
.03
.07
.03
26
.07
2-3














.01




.03











2
.03
3-4














.02




.04











2
.04
4-5


.0<
.01
.0!
.0!
.0!
.0!
.04
.0!
.0!
.01
.0<
.02
.0?
.03
.02
.02
.04
.01
.03
.04
.06
.04
.03
.02
.01
.0*
.04
.07
.04
28
.07
5-6


.05
.01
.05
.05
.03
.02
.03
.04
.05
.06
.03
.01
.02
.03
.03
.03
.03
.02
.02
.03
.05
.04
.02
.02
.03
.03
.03
.08
.03
28
.08
6-7


.04
.02
.0!

.03
.02
.Oi
.04

.05
.03
.02
.02
.03
.02
.04
.04
.02
.02
.03
.04
.04
.02
.03
.03
.03
.03
.08
.03
26
.08
7-8


.04
.0(
.0(

.02
•02
.02
.0<
.0(
.05
.02
.01
• 02
.02
.02
.03
.04
.02
.02
.03
.06
.03
.02
.02
.03
.03
.03
.07
.02
27
.07
8-9


.04
.0!
.Of
.02
.0;
.02
.03
.0'
.OJ
.06
.02
.01
.0?
.02
.02
.05
.04
.OjJ
.01
.03
.06
.04
.02
.oj
.01
.04
.03
.0!
.02
28
.06
9-10


.04
.0
.0!
.03
.02
.02
.04
.0!
.05
.05
.02
.02
.02
.03
.03
.05
.04
.02
.03
.03
.05
.04
.02
.01
.02
.04
.04
.05
.03
28
.05
IO-1 1


.03
.01
.01
.03
.01
.'02
.05
.04
.04
.05
.02
.02
.02
.03
.02
.04
.04
.04
.03
.02
.04
.05
.02
.02
.00
.03
.06
.04
.03
28
.06
1 1-12


.03
.01
.02
.03
.02
.01
.04
.05
.03
.05
.02
.02
.02
.03
.01
.04
.03
.04
.02
.02
.04
.04
.01
.01
.01
.02
.06
.03
.03
28
.06

MEAN


.030
.017
.027
.032
.027
.020
.033
.038
.044
.045
.026
.028
.016
.031
.025
,022
.032
.027
.027
.027
.038
.035
.020
.016
.018
.026
.030
.051
.029

.051
NO.
OF
MRS.


1<
2C
If
If
2f
1«
21
21
2C
U
21
21
H
2C
21
21
19
23
17
21
2C
21
21
21
2C
21
21
IE

55J


MAX.


.08
.04
.08
.06
.06
.05
.07
.08
.11
.09
.06
.10
.03
.08
.06
.08
.10
.12
.10
.07
.11
.09
.06
.04
.06
.07
.07
.10


.12
  * Indicates Saturday or Sunday
   Local standard-time used
                                                               TABULATED
                                                                          WED.t  SEP.  10,  1969

-------
     CONTINUOUS AIR MONITORING PROGRAM
    Air Quality Section. Laboratory of Engineering and Physical Sciences
    Division of Air Pollution, Public Health Service
    U. S. Department of Health, Education, and Welfare

    Robert A. Talt Sanitary Engineering Center
    Cincinnati. Ohio 45226
                  Table 3-66

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE  ANALYSIS
 CHICAGO,ILL.
TOTAL OXIDANT
     JUNE 1968
DAY
MONTH
1*
2«
3
4
5
6
7
8*
9*
10
11
12
13
14
15*
16*
17
18
19
20
21
22*
23*
24
25

26
27
28
29*
30*
MEAN
NO.
MAX.
A.M.
12-1
.02
>

.02
.02
.02
.01
.oi
.03
.02
1-2
•2?
«0
-------
CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section, Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare


Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 4522E
                  Table 3-67

           HOURLY.AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM  IODIDE ANALYSIS
 CHlCAGOtlLL.
TOTAL OXIDANT
     JULY 1968
DAY
MONTH
1
3
4
5
6*
7«
8
9
10
11
12
13«
14«
15
16
17
IB
19
20*
21«
22
29
24
25
26
27«
28*
29
30
31

NO.
MAX.
A.M.
12-1
.01
.01



1-2
.02
.01



.01 .02
.oi .01
.02 .02
.03 .03
.07 .06
.06 .03
.03, .83
2-3




.01
.02
.01


3-4
.02


.01
.01
.01
.01
.03
.02
.031 .04

.06 .061 ,04| .04
.03 ,o3 .02
.03 .03 .03 .02
.05 .05, ,03J .04
:
.01!
.06

.10 .091,
.05 .OS
.05 .041
.03 .02
.02 .02






.04
19
.10




.02
.09
.03
21
.09








7
.04
.02

.04
.01
.03

.03




.02
.05
.02
19
.05
4-5
.01
.01


.01

.01
.01
.02
.06
.05
.01
5-6
.00
.01


.01
.01
.01
.01
.03
.07
.08
.02
.0^ .05
.021 .03
.02 .03
.04J .05


.04
.04

.06

.00
.03- .05
.01 .02
.06




.06




.02 .03
.06 .08
.03
21
.06
.03
20
.08
6-7
•21
.0<


.01
.02
.01
.OC
.02
.09
.OS
7-8
.01
.0*


.01
.02
.02
.01
8-9
.01
.0:


.01
.01
.02
.01
.04| ,0<
.09
.08
.04 .03
.06 .06
.02 .03
.03 .02
.06


.05

.06


.0*

.05
.07
.03
.03
.07

9-10
.02
.0-


.02
.02
.02
.0^
.05
.06
.07
.06
.06
.05
.03
.08

1
.06 .05
.0* .05
.021 .03j .03
.07 .OT! .06
.02 .03
	 1
i



.05

.04
19
.09



.04

.04
19
.09
.04





.06
.04
20
.08
.05


.0!
.oi
.06





.06
,oJ
19
.08
IO-1 1
.0!
.0!


.02
.02
.02
.0<
.Of
.07
.07
.06
.07
.0!
.03
.07

.09,
.06


.0*
.03
.0!





.06
.0!
20
.09
1 1-12
.02
.03


.02
.02
.02
.05
.10
.08
.08
.04
.07
.08
.04


.08
.06

.02
.07
.03
.03






.05
19
.10
P.M.
12-1
.§]
.0,


.02
.0!
.02
.01
.K
.08
.1C
.0!
.07
.07



.08
.06
.11
.02
.01
.03
.03




.05
.07
.0!
21
.11
1-2
.02


.02
.03
.02
.09
.07
.07
.11
.05
.071
.07



.08
.07
.11
.03
.0!
.04





.05

.06
18
.11
2-3



.03

.02
.Of
.06
.Of
.1C
.04
.07
.05

.04

.09
.07
.OS
.03
.01
.0!





.06
.08
.06
18
.10
3-4
.0:


.0:

.02
.01
.03
.01
.12
.04
.07
.04

.04

.16
.07
.OS
.04
.0«
.08
.08




.09
.07
.06
20
.16
4.5
.0:
.0;


.0!
.0;
.0;
.01
.03
.Of
.1?
.04
.06
.03

.04

.H
.09
• OS
.0!
.0!
.09
.07




.10
.08
.OA
22
.18
5-6
.03
.04


.03
.02
.02
.06
.02
.07
.10
.04
.06
.04
.04
.04

.14


.04
.05
.05
.03




.10
.06
.05
21
.14
6-7
.02
.o<


.02
.02
.02
.05

.06
.06
.04
.05
.02
.03|
.03

.13
.0«

.04
.04
.04
.04





.06
.04
20
.13
7-8
.Oi
.06


.01
.011
.0-
.04
.06
.01
.04
.07
.0<
.02
.04


.12
.06
.OJ
.0!
.04
.05
.04





.06
.0!
21
.13
8-9
.0!
.0(


.0]
.01
.02
.0:
.06
.Of
.01
.OS
.0!
.02
.04


.12
.06
.05
.0!
.0*1
.03
.0<





.03
.04
21
.12
9-10
.01
.0«


.01
.00
.0;
.0-
.08
.06
.06
.08
.04
.02
.04


.!<
.05
.0!
.06
.031
.0<
.04





.04
.04
21
.14
10-1 1
.01
.06


.0;

.02
.03
.-07
.01
.09
.09
.04
.0<
.04
.02

.17
.05

.05
.0?
.03
.02




.09
.04
.05
21
.17
1 1-12
.02
.07


.01
.00
.02
.03
.07
.05
.07
.OB
.02
.03
.05
.04

.13
.08

.05
.03
.02
.02





.03
.04
21
.13

MEAN
.016
.032


.017
.014
.017
.034
.051
.069
.073
.047
.055
.037
.032
.047

.110
.060
.071
.035
.047
.036
.041




.054
.059
.045

.110
NO.
OF
MRS.
?i


21
2(
2t
24
22
23
23
21
2«
23
19
18

16
2C
1«
2C
22
21
19




13
ie

468


MAX.
.06
.09


.04
.03
.03
.12
.14
.11
.12
.11
.10
.09
.05
.09

.22
.15
.12
.06
.09
.09
.10




.12
.09


.22
  * Indicates Saturday or Sunday
    Local standard time used
                                                              TABULATED
                                                                          WED,. SEP.  10,  1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section. Laboratory of Engineering and Physical Sciences
Division of Ail Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robeit A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
                  Table 3-68
           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE  ANALYSIS
 CHICAGO.ILL.

TOTAL OXIDANT
     AUG. 1968




































CO
CO
DAY
MONTH
1
3*
4*
5
6
7
8
9
10»
11*
12
13
14
15

16
17«
18*
19
20
21
22
23
24«
25«

26
27
28
29
30
31«
ME4\-

M«.

1 2- 1
.02
.04
.03
.oi
.031

.01
.06
.01
.01
.03
.02
.03
.03
.03

.02

.03
.02
.02
.02
.03






.02
.03
.03
.02
.02
24
.06

1-2 2-
.02
^05
.03
.01
.04
j
.02
.06
.01
.03
.03,
.03
.03
.02
.03

.02
.02
.04
.02
.02
.02,
.03)





.02;
.02
.02
.031
!
.02j
.031
26 1
.061

3 3-4
.02
.02
.02
.01
.02

.02
.06
.01
. .00
.03
.02
.02
.02
.oi
. J.
' .02
.02
.03
.02
' .02
'
.02
.02

' :

'

.01
.04
• .03
.03
! .02
.02
i 26
.06

45
.04
.0?
.O1
.02
.03

.01
.04
.01
.01
.07
.03
•01
.02
.03

.02
.02
.03
.03
.03
.01
.04





.02
.03
.02
.03
.02
.02
26
.04
A
5-6
.04
.03
.03
.01
.02

.00
.02
.01
.01
.02
.06

.03
.05

.02
.03
.02
.03
.02
.01
.02





.03
.06
.04
.03
.02
.03
25
.06
M.
6-7
.02
.04,
.05
.02
.02

.00
.02
.01
.01
.02
.06
.04
.04
.05

.02
.03
.03
.03
.02
.00
.03





.04
.06
.03
.03
.02
.03
26
.06

7-8
.04
• 0<
.06
.06
.02

.01
.04
.04
.01
.03
.06

.04
.06

.03
.04
.03
.04
.03
.01
.03





.03
.03
.oJ
.04
.03
.03
2-i
.06

8-9
•°l
.03
.05
.07


.00
.04
.06
.01
.03

.05
.03
.03

.03
.05
.03
.04
.04
.02
.04





.04
.03
.04
.05
.05
.04
24
.07

P-IO
.02
.02
.0^
.0
-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboiatory of Engineering and Physical Sciences
Division of Ail Pollution. Public Health Service
U. S. Department of Health. Education, and Welfare

Robert A. Taf t Sanitary Engineering Center
Cincinnati. Ohio 45226
                                                                    Table 3-69

                                                             HOURLY AVERAGES OF
                                                   GASEOUS POLLUTANT CONCENTRATIONS
                                                                CONCENTRATION IN PPM
                                                               POTASSIUM  IODIDE  ANALYSIS
 CHICAGO,ILL.
TOTAL OXIDANT
    SEPT.  1968
DAY
MONTH
i"
3
<>
5
6
7«
8«
9
10
11
12
13
14«
15«
16
17
18
19
20
2l«
22»
23
24
25
26
27
28«
29«
30
MEAN
NO.
MAX

12-1
:o1
.02!
.03
.02

.02^

1-2
.02
.02
.01
2-3


.02;
.02
.021
.01
.03 .02
.01
.02
.04
•°1
3-4
.02
.01
.02
.02
.02
.02
4-5
.01
.0!
.01
.02
.02
A.M
5-6
.01
loi

.03
.03
.03 .03
.02 .0?! .02
.01 .01 .01
.01 .01
.01
.02 ' .02! .0? .03
.02 , .03 .03 .05
.05, ,05|
.03
.04



.01
.01
.01

.01
.01
.
.02
.01
.01
.03
.01
.02
23
.05
.05, .0-5J .07
.03, j .03 .02 .03
.02 I .03 .03 .02
! J J
i '

i 1 i
.01 s .02i .03i .04




,01| ' .00 .02
.Oil
.Ol|
,
.01;
.01
".02!
.01
.01
.01
.01
.02
25
.05





.01
.02

.01
.01
.01
.01
.02
.02
.01
.02
25
.05

.03
1
.02, .03
.Oil .02

.02

.02
i .03
.Oil .04
.02
.03
.02
.01
.02
24
.05
.02
.04
.02
.03
.03
24
.07
6-7
.02
.01
.03
.03
.04
.03
.02
.02
.02
7-8
.02
.02
.04
.04
.04
.02
.02
8-9
.02
.03
.03
.04
.04
.02
.03
.02 .02
.03j .02
.04J .04
.09 .07
.06 .07
.04 .09
.03

.02
.04
.05
.04
.02 .03
r ••
.02| .02

.021
i
9.1O
.02
.03
.03
.04
.03
.02
.03
IO-1 1
.02
.03
.03
.04
.03
.03
.03
.01 .02
.02
.02
.04
.04
.04
.04

.02


.03
.04
.05
.04
.0!

.02

.04, .04. .04| .03 .03
.02
.02

.02 .02
.02 .01
|
..02 .02 .02
.03, .02, .01
.06! .05 .,03
.03 .03 .02
.05
.02
.07
.03
25
.09
.02 .03
.02: .02
.04
.03
25
.07
.02
.03
25
.05
.0,
.02

.03
.02


.01
.01
.03J .03
.02] .02
.04 .01
.02
.02
.03
24
.04
.03
.02
.03
23
.05
1 1-12
.02
.03
.04
.03
.04
.03
.03
.01

.02
.04
.05
.04
.04

.02

.03

.03
.02


.02
.02
.03
.01
.04

.03
22
.05
P.M.
12-1
.02
.02
.0<
.03
.04
.02
.02
.01

.02
.0!
.05
.04
.04

.02



.03
.04

.03
.02
.02
.03
.01
.05

.03
22
.05
1-2
.03
.03
.04
.03
.04
.03
.03

.0<
.04
.05
.05
.04
.02

.03



.03
.04

.03
.02
.02
.02
.01
.06

.03
22
.06
2-3
.oi
.04


.04
.04




.05

.03





.05








7
.05
3-4
.04
.0<


.02
.0<




.0'

.04





.04








7
.04
4-5
.0:
• 0<
.04
.0:
.04
.02
• 0<
.02
.03
.0<
.0<
.0!
.04
.04

.02

.11

.02
.03

.02
.02
.02
.02
.02
.02
.02
.03
25
.11
5-6
.02
.04

.03
.04
.03
.04
.01
.03
.03
.03
.04
.04
.04

.03

.05

.02
.04

.01
.01
.01
.02
.01
.02
.01
.03
24
.05
6-7
.02
.o<
.02
.02
.0!
.02
.02
.01
.02
.0!
.03
.06
.0!
.03

.02

.03

.02
.04

.02
.01
.02
.02
.01
.02
.00
.02
25
.06
7-8
.02
.0<
.0<
.02
.02
.02
.02
.01
.03
.03
.06
.06
.0<
.02

.02

.03

.01
.03

.01
.01
.02
.02
.01
.02
.00
.03
25
.06
8-9
.02
.03
.01
.02
.03
.02
.03
.01
.02
.02
.06
.07
.02
.02

.02

.03

.01
.03

.01
.02
.02
.02
.02
.02
.00
.02
25
.07
9-IO
.02
.03
.03
.02
.03
.02
.02
.01
.03
.04
.05
.03
.02
.02

.02

.02

.01
.03

.02
.02
.02
.02
.02
.02
.00
.02
25
.05
10-1 1
.02
.02
.o<
.02

.01
.02
.0;
.03
.Of
.06
.02
.03
.02

.02

.02

.01
.02

.01
.03
1 1-12
.02
.03
.03
.02

.02
.03
.02
.02
.05
.06
.03
.03
.02

.02

.02

.01
.03

.01
.03
.021 .02
.02 .02
.03 .03
.02
.00
.02
24
.06
.03
.00
.02
24
.06

MEAN
.018
.026
.031
.027
.032
.024
.028
.015
.021
.031
.045
.051
.035
.031

.022

.029

.019
.026

.016
.018
.023
.019
.022
.025
.016
.026
.051
NO.
OF
MRS.
|]
21
21
11
22
22
2(
If
21
21
22
21
25

2C

19

21
23

IB
20
21
21
21
21
18
520

MAX.
:B
.07
.09
.09
.05
.10
.04
.07
.08
.12
.13
.07
.09

.08

.14

.06
.07

.05
.05
.07
.04
.08
.06
.09
.14
* Indicates Saturday or Sunday
  Local standard time used
                                                                                                                   TABULATED
                                                                                                                               MED..  SEP.  10,  1969

-------
      CONTINUOUS AIR MONITORING PROGRAM
      Air Quality Section, laboratory ot Engineering and Physical Sciences
      Division of Ait Pollution. Public Health Service
      U.S. Department of Health. Education, and Welfare

      Robert A. Taft Sanitary Engineering Center
      Cincinnati. Ohio 45226
                  Table 3-70

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE  ANALYSIS
 CHICAGOtlLL.
TOTAL OXIDANT
     OCT. 1968
DAY
MONTH
1
2
3
4
5«
6*
7
8
9
10
11
12*
14*
15
16
17
18
19«
20«
21
22
23
24
25
26*
27*
28
29
30
31
MEAN
NO
MAX.

12 1
.01
.01
.01
.01
.01





.01
.02
A.M.
1-2
.01
.01
.02
.01
.01





2-3









.01
.02
.01 .01


.01
.01
.01



.01!
.02
.01!
.01
.00 .01

.02 .02]
.03
.01
.01
.01
.021
.Oli
tOlj
.01
,00( .00
.00 .00








.Oil .01
19
.03
20
.02










3-4
.01
.01
.01
.01





.OL
.03
.01

.01
.02
.01
.01
.01
.02
.02
.01
.01
.01
.oq
.02




.01
19
.03
4-5
.01
.02
.01
.01
.01





.01
.02
.01

.01
5-6
.02
.02
.02
.01
.01





.02
.04
.01

.01
.01 .01
.01 .01
.01 .01
.01
.02
.02
.01
.01
.01
.03
.02
.01
.01
.Olj .01
.00 .01
.02] .03

1


.01
20
.02


.02
20
.04
6-7
.02
.01
.02
.02
.02





.04
.03
.01

.02
.01
.02
.01
.01
.05
7-8
.01
.01
.02
.02
.01





.03
.04
.01

.02
.01
.01
8-9
.01
.01
.01
.01
.00





.02
.04
.01


.02
.01
.Oil .02
.00 .01
.04. .02
.02! .02! .01
.01 .021 .01
.02 .OZ .01
.02 .03 .01
.01 .ocT.oo
.02




.02
20
.05
.02! .01
!



.02
20
.04



.01
19
.04
9- 1O
.01
.01
.01
.oil
.01






.05
.02


.01
.01
1O-I 1
.01
.02
.01
.01
.02






.07
.01


.01
.01
.03 .02
.02 .02
•OZ .03
.01
.01
.01
.00
.00
.01




.01
18
.05
.01
.01
.01
.00
.OC
.02




.02
18
.07
1 1-12
.02
.01
.01
.01
.01






.10
.08

.03
.01
.01
.02
.03
.02
.01
.02
.01
.00
.02
.02




.02
19
.10
P.M.
12-1
.03
.01
.01
.OC
.01





.02
.06
.06

.03
.01
.01
.02
.03
.03
.01
.01
.01
.00
.01
.01




.02
20
.08
1-2
.02
.02
.01
.01
.01





.02
.04
.06

.03
.01
.02
.02
.03
.02
.01
.01
.00
.01
.01




.02
19
.08
2-3











.03






.02
.00

.01

.01





5
.03
3-4











.02






.02
.01

.02

.01





5
• 02
4-5
.03
.02
.01
.01
.01





.02
.03
.02

.01
.01
.01
.01
.02
.07
.01
.01
.01
.01
.01
.01




.01
20
• 03
56
.02
.01
.01
.01
.01





.02
.03
.01

.02
.01
.00
.01
.02
.01
.01
.00
.01
.01
.01
.01




.01
20
.03
6-7
.02
.01
.OC
.01
.OC





.02
.03
.01

.01
.01
.OC
.01
.02
.02
.01
.OC
.01
.01
.01
.01




.01
20
.03
7-8
.0!
.OC
.OC
.01
.01





.03
.02
.01

.01
.01
.01
.OC
.02
.ni
.OC
.OC
.01
.01
.01
.02




.01
20
.03
8-9
loj
.OC
.01
.01





.03
.03
.01

.01
.01
.01
.OC
.02
.01
.OC
.OC
.01
.00
.01
.02




.01
20
.03
9-10
.02
.01
.OC
.01
.OC





.02
.03
.01

.01
.01
.01
.OC
.02
.01
.OC
.OC
.01
.00
.OC
.01




.01
20
.03
10-1 1
.0!
.01
.01
.01
.01





.03
.02
.01

.01
.01
.or
.01
.02
.02
.OC
.OC
.01
.oq
.00
.01




.01
20
.03
1 1-12
.02
.01
.01
.02
.01





.02
.02
.01

.01
.01
.00
.01
.02
.03
.00
.01
.01
.01
.00
.01




.01
20
.03

MEAN
.017
.011
.009
.009
.008





.022
.036
.024

.015
.011
.009
.011
.016
.022
.Oil
.007
.011
.007
.006
.013




.014

.036
NO.
OF
MRS.
21
2C
21
21
21





If
21
23

n
21
21
21
21
23
23
2C
21
23
21
23





421


MAX.
.04
.03
.03
.03
.02





.11
.14
.11

.03
.02
.03
.04
.04
.07
.03
.03
.03
.04
.03
.03






.14
CO
en
        * Indicates Saturday or Sunday
         Local standard time used
                                                                TABULATED   WED..  SEP.  10,  1969

-------
CO
O5
      CONTINUOUS AIR MONITORING PROGRAM
Ai> Quality Section. Laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Depaitment of Health. Education, and Welfare

Robert A. Tall Sanitary Engineering Centei
Cincinnati. Ohio 45226
                  Table 3-71

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM  IODIDE ANALYSIS
 CHICAGO.ILL.
TOTAL OXIDANT
     NOV.  1968
DAY
MONTH
2.
3*
4
5
6
7
8
9«
U
12
13
14
15
16*
17*
18
19
20
21
22
23*
24«
25
26
27
28
29
30*
MEAN
NO
MAX.

12-1
.0!
.04







.02
.04
.03
.01
.01
.oq
.01
.00
.01
.02

.02
.02
.OS1
.01
.02
.02
17
.04

1-2
.00
.02
.02




.01


.02
.02
.02
.01
.01
.oq
.00
.00
.01
.02

.01
.01
.02
.01
.01
.01
19
.02

2-3



























3-4
.01
.01
.02




.OC

.01
.01
.01
.02
.01
.01
.00
.OC
.00
.01
.02

.01
.01
.01
.01
.00
.01
20
.02

4-5
.011
.01
.01




.Of


.01
.02
.02
.01
.01
.OC
.00
.00
.01
.02

.01
.01
.02?
.01
.00
.01
19
.02
A
5-6
.01
.01
.01




.00


.02
.03
.02
.01
.01
.00
.00
.00
.02
.02

.01
.02
.01
.02
.00
.01
19
.03
.M.
6-7
.01
.02
.02




.00


.03
.04
.03
.01
.02
.01
.00
.00
.04
• OZ

.02
.04
.02
.03
.00
.02
19
.04

7-8
•o:
.03
.02




.00


.04
.05
.03
.01
.04
.01
.OC
.00
.05
.02

.04
.06
.02
.04,
.00
.02
19
.06

8-9
. Oi
.02




.00


.06
.05
.03i
.01
.04
.01
.00
.01
.05
.03

.06
.06
.02
.05
.01
.03
19
.06

9-10
.04
.02




.01



.05
.03
.01
.02
.01
.00
.00

.02

.04
.03
.02
.03!
.01
.02
16
.05

10-11
.01
.0:




.01

.03

.04
.04
.02
.02
.oq
.00
.01

.03

.02
.02
.02

.01
.02
16
.04

1 1-12
.03
.03




.00

.02

.05
.04
.02
.02
.00
.00
.01

.03

.01
.03
.02

.02
.02
16
.05

12-1
.0-
.0:
.0;




.OC

.01

.04
.05
.02
.01
.OC
.00
.02
.03
.02

.02
.03
.01
.03
.02
.02
19
.05

1-2
.03
.0'
.0:




.01

.02
.03
.04
.05
.01
.01
.oq
.00
.02
.02
.02

.02
.04
.02
.02
.02
.02
20
.05

2-3



























3-4
.0:
























1
.03

4-5
.02
.Of
.0!




.01

.03
.05
.04
.05
.03
.02
.OC
.00
.04

.02

.04
.04
.02
.02
.03
.03
19
.06
p
5-6
.02
.05
.04




.00

.03
.06
.04
.03
.03
.03
.00
.00
.05
.05
.02

.04
.06
.02
.02
.03
.03
20
.06
M.
6-7
Io-
.0:






.03
.05
.04
.04
.03
.02
.OC
.00
.03
.04
.01

.03
.05
.02
.02
.02
.03
19
.05

7-8
.Oi
.0:
.0:




.OC

.03
.03
.03
.04
.03
.02
.OC
.00
.02
.02
.01

.03
.03
.03
.01
.02
.02
20
.04

8-9
:§i
t "'






.04
.oi
.04
.02
.02
.02
.00
.00
.01
.oi
.01

.03
.03
.03
.02
.03
.02
19
.04

9-10
:8!
.0:




.OC

.02
.03
.04
.03
.03
.01
.00
.OC
.02
.01
.01

.03
.03
.02
.01
.03
.02
20
.04

10-11
.0:
.0'
.02




.OC

.01
.04

.01
.02
.00
.00
.00
.0?
.01
.02

.03
.03
.01
.02
.02
.02
19
.04

1 1-12
.03
.04
.02




.00

.02
.05
.04
.03
.01
.00
.00
.00
.02
.02
.01

.03
.04
.02
.02
.02
.02
20
- .05

MEAN
.019
.031
.028




.003

.025
.034
.036
.032
.017
.016
.002
.001
.012
.024
.019

.026
.033
.020
.020
.014
.020
.036
NO.
OF
MRS.
M
21




18

11
IT
20
21
21
21
21
21
21
17
21

21
21
211

21
395

MAX.
.05
.10
.07




.02

.05
.06
.08
.11
.06
.06
.03
.01
.06
.08
.04

.08
.10
.05
• OT
.06
.11
       * Indicates Saturday or Sunday
         Local standard time used
                                                                                                                   TABULATED
                                                                                                                              WED..  SEP.  10,  1969

-------
      CONTINUOUS AIR MONITORING PROGRAM
      Ait Quality Section, laboratory of Engineering and Physical Sciences
      Division of Air Pollution, Public Health Service
      U. S. Department of Health, Education, and Welfare

      Robert A. Taft Sanitary Engineering Center
      Cincinnati. Ohio 45226
                  Table 3-72

           HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
             CONCENTRATION IN PPM
             POTASSIUM IODIDE  ANALYSIS
 CHICAGO,ILL.
TOTAL OXIDANT
     DEC.  1968
DAY
MONTH
2
3
4
5
6
7*
8«
9
10
11
12
13
14*
15*
16
17
18
19
20
21*
22*
23
24
25
26
27
28*
29*
30
31
MEAN

MAX.
A.M.
12-1
.01
.02







.02

.oc
,00
.od
.oc
.oc


.oq


1-2
.01
.01
.02






.OC
.02
.01
.OC
.00
.OC
.OC
.01

.01
.00


i








10
.02








13
.02
2-3











.OC

.oc

.oc














3
.00
3-4
.01
.01
.01






.oc
.02


.OC
.OC
.oc
.01

.00
.oc











U
.02
4-5
.OC
.02
.01






.OC
.02
.OC
.OC
.00
.or
.oc
.01

.00
.00











13
.02
5-6
.01
.02
.01






.00
.02
.00
.00
.00
.00
.00
.01

.01
.00











13
.02
6-7
.01
.02
.0<






.OC
.02
.OC
.OC
.00
.001
.oc
.02

.00
.00











13
.04
7-8
.01
. 04
.05






.OC
.03
.OC
.OC
.00
.oc
.oc
.03


.00











12
.05
8-9
.01
.0:
.05






.01
.03
.OC
.OC
.00
.OC
.oc
.03


.00











12
.05
P-1O
.01
.01






.oc

.oc
.oc
.00
.oc
.oc
.02


.oc<











11
.04
1O1 1
.01
.03
.01






.01

.OC
.oc
.oc

.oc
.03


.OC











10
.03
11-12
.02
.04
.01






.01
.02
.00
.00
.00

.00
.02


.00











11
.04
P.M.
12-1
.02
.03
.OC






.01
.02
• Ol
.0(
.oc
.oc
.oc
.02


.OC











12
.03
1-2
10!
.OC






.02
.03
.OC
.OC
.00
.OC
.oc
.02

.00












12
.05
2-3









.03
.OC
.OC
.OC
.OC
.OC


.oc












7
.03
3-4









.03
.OC
.OC
.00
.OC
.oc


.oc












7
.03
4-5
:°l
.02







.02
.OC
.OC
• OC
.or
.02
. .02

.oc
.01











12
.04
5-6
.04
.03
.01







.03
.00
.00
.00
.00
.01
.03

.00
.01











12
.04
6-7
.03
.04
.oc





/


.oc
.oc
.oc
.oc
.01
.02

.00
.01











11
.04
7-8
.02
.02
.OC








.OC
.OC
.OC
.OC
.01
.02

.OC
.OC











11
.02
8-9
.01
.02
.OC






.02

.or
.oc
.oc
.or
.01
.02

.oc
.oc











12
.03
9-10
.01
.02
.OC






.02

.or
.oc
.oc
.or
.01


.oc
.oc











11
.02
10-11
.02
.02
.OC




-

.0?

.or
.oc
.oc
.or
.01


.oc












10
.03
1 1-12
.01
.03
.00






.02

.00
.00
.00
.00
.01


.01












10
.03

MEAN
.016
.028
.013






.008
.025
.000
.000
.000
.000
.004
.017

.002
.002












.028
NO.
OF
MRS.
21
21
21






U
1!
21
22
23
2?
22
1^

It
18











259


MAX.
.06
.08
.14






.03
.04
.01
.01
.02
.02
.04
.06

.02
.03












.14
CO
        * Indicates Saturday or Sunday
          Local standard time used
                                                               TABULATED   WED..  SEP.  lOf  1969

-------
  SECTION 4.
SOILING INDEX
 DATA TABLES
    89

-------
                             SOILING INDEX DATA TABLES

    Table 4-1 through 4-12 present soiling index values at the station by month.  Each
value was obtained from a 2-hour integrated sample beginning at the time  indicated in the
column heading.  A missing value indicates that the sample was not taken  or was invalid
because of instrument malfunction.
    The first summary line (titled MONTHLY MEAN)represents the arithmetic mean of the
2-hour average values in the column, and is calculated only  if 16  or more days are repre-
sented.  The first summary column (titled DAILY MEAN) gives the  arithmetic  mean of the
2-hour values for the day; if fewer than seven such values are present,  the daily mean is
not calculated, and the  data are not included in the summaries; however,  the component
2-hour values for the day are not deleted from the table as is done with data on gaseous
pollutants.
    The other summary columns and rows are the number of and maximum of the respective
2-hour values.  Four summary figures appear in the lower right corner; the  mean and maxi-
mum values for the month are the upper left and lower  right figures, respectively, while  the
center figure is the total number of values.  The lower left summary number is the maximum
daily average from the column  above.
                                         "91

-------
                                                        Table 4-1
                                                                                              TABULATED 09/17/69
                                            CONTINUOUS  AIR  MONITORING PROGRAM
                                              AISI  SPOT (.COH/1000  LINtFT.)
CO
to
         DAY
         OF
TIME (STARTING HOUR)
CHICAGO ILLINOIS
                                                                            JAN/68
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
1 *
13
16
17
18
10
20
21
22
23
24
25
26
27
2ft
29
30
31
AVG
NO)
MAX*
0000

Z.9
1.2
1.7
1.4
2.5
1.5
2.2
2.1
1.8
2.8
0.3
0.4
1.2
1.3
OA
• 9
3.1
0.9
1.3
0.5
1.5
2.0
1.2
1.4
2.3
2.0
1.6
1.5
1.6
1.9
1.1
1.9
1.61
31
3.1
0200

3. S
l.«
1.1
1.3
1.2
1.6
2.2
3.3
1.3
2.5
0.6
1.1
0.9
1.0
I*
.*
3.0
1.3
1.2
1.*
1.1
1.6
1.9
0.7
1*8
1.6
2.2
ll*
1.9
1.7
0.7
2.1
1.60
31
3.6
0400

2.5
1.9
2.0
1.7
1.5
2.3
2.5
3.8
2.8
3.6
0.5
0.8
0.9
0.8
10
• "
3.7
1.4
1.3
1.2
2.2
1.8
0.9
1.4
2.9
2.6
2.4
1.5
1.9
3.1
1.3
4.4
2.04
31
4.4
0600

1.9
3.3
1.6
2.0
3.1
2.3
1.8
*.7
2.2
4.1
I'3
1.6
1.1
1.2
1 A
1*0
4.3
1.9
2.3
4.3
2.1
2.0
i.5
J.9
5.7
3.0
£•6
2.7
2.8
2.3
i.5
'.5
2.39
31
?.7
0800

5.5
3.4
2.1
1.6
2.0
2.5
2.3
4.0
2.4
2.4
1.2
1.4
0.9
1.6
1 H
i • y
3.0
2.2
2.0
2.2
2.1
1.6
1.5
2.0
3.9
3.9
2.5
3.3
2.5
2.3
1.5
2.3
2.37
31
9.5
1000

1.6
1.8
1.8
1.6
1.3
2.6
2.0
2.7
2.8
1.2
1.1
2.1
0.6
1.8
19
• 3
1.4
1.8
1.1
1.5
1.3
1.2
1.8
1.2
2.1
4.8
2.4
3.6
1.9
2.2
0.8
2.3
1.86
31
4.8
1200

1.0
3.0
1.6
1.3
1.1
2.6
1.9
3.0
1.7
1.2
0.6
1.3
1.4
0.8
1.2
1.5
1.7
1.5
1.2
4.2
1.5
1.5
1.4
2.1
2.3
1.6
1.0
2.8
0.7
2.3
1.69
31
4.2
1400

3.0
3.9
1.6
1.5
1.6
1.6
1.5
3.0
1.7
1.3
0.9
1.2
1.2
1.1
1.1
1.5
2.0
1.8
1.3
3.1
2*4
2.2
0.6
1.7
1.8
2.0
1.2
2.9
0.8
3.5
1.82
31
3.9
1600

2.7
3.1
2.0
1.8
1.3
1.9
1.4
2.5
2.8
1.3
1.3
1.5
1.3
1.0
1.3
1.5
1.8
1.9
1.4
1.1
2.7
2.2
1.2
2.5
1.5
2.7
1.1
2.8
0.5
3.S
1.85
31
3.3
1800

2.0
3.2
1.6
1.5
1.9
1.9
1.8
1.8
2.0
0.7
0.4
1.4
0.8
!•*
1.5
1.4
1.6
1.0
1.4
3.7
1.7
2.1
1.1
2.5
1.6
1.9
1.8
2.2
0.4
2.1
1.68
31
3.7
2000

1.7
3.2
1.7
1.6
2.1
1.4
1.3
3.0
1.7
0.9
1.0
1.9
0.7
0.9
1.6
1.4
1.4
1.5
1.7
3.9
1.9
2.3
2.1
1.7
2.3
1.4
3.9
1.5
1.1
1.9
1.82
31
3.9
2200

1.7
2.3
1.7
2.3
2.0
1.7
2.2
2.6
1.4
0.9
0.6
0.7-
0.8
0.9
2*.
• &
1.3
1.3
1.3
1.4
2.4
1.8
1.2
2.2
2.1
1.9
1.1
1.6
2.1
0.8
1.7
1.2
1.60
31
2.6
AVG

2.57
2.70
1.74
1.68
1.84
2.03
1.97
2.99
2.09
1.96
0.85
1.32
1.04
1.19
1TH
• '"
2.25
1.56
1.63
1.48
1.68
2.37
1.72
1.79
2.31
2.57
2.06
2.14
1.97
2.25
1.04
2.62
1.85

2.99
N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
« 5
AC
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

372

MAX
(2)
5.5
3.9
2.1
2.3
3.1
2.6
2.5
4.0
2.8
4.1
1.3
2.1
1.5
1.8
2j[
• °
4.3
2.2
2.3
2.2
2.4
4.2
2.7
2.3
5.7
4.8
2.6
3.6
3.9
3.1
1.7
4.4


5.7
         (1) N«NUMBER OF VALID 2-HR  SPOTS
         (2) MAX'MAXIMUM 2-HR COH  
-------
                                                        Table 4-2
                                                                                              TABULATED 09/17/69
                                            CONTINUOUS  AIR  MONITORING PROGRAM
                                              AISI  SPOT (COH/1000  LIN.FT.)
         DAY
         OF
                    TIME (STARTING HOUR)
CHICAGO ILLINOIS
FEB/68
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
29
26
27
28
29
AVG
NO)
MAX*
0000

1.1 .
1.4
1.1
0.6
0.7
5.9
1.7
2.8
1.8
1.8
1.9
2.0
1.7
1.9
2.3
3.6
1.3
1.6
2.3
1.7
1.6
1.1
1.9
0.5
0.6
1.1
z.o
1.9
1.7
1.75
29
9.9
0200

1.8
1.6
1.4
i.o
0.5
5.4
1.4
2.2
1.6
1.*
1.5
1.3
1.9
1.9
2.2
2.9
l.t
1.6
2|2
1.9
1.0
1.9
1.9
1.1
0.6
2.3
2.9
1.9
1.7
1.77
29
5.4
' 0400

3.4
1.6
1.9
0.8
0.9
5.0
2.3
2.9
1.3
1.8
1.4
2.0
1.8
2.1
2.5
4.0
0.5
1.6
2.5
1.8
1.8
1.8
2.3
0.7
0.6
4.1
2.9
1.7
1.8
2.04
29
5.0
0600

2.8
2.1
2.7
0.6
1.6
6.3
2.2
2.9
1.7
$.4
1.8
2.7
3.2
3.2
*.9
3.2
lU
1.9
0.9
2.0
2.1
3.1
3.9
0.6
1.2
5.0
4to
2.0
2.3
f.63
29
6.3
0800

2.6
1.9
2.6
0.6
2.0
4.6
2.2
2.7
1.9
2.3
2.0
2.1
4.0
3.1
2.3
2.0
ilz
1.9
3.3
2.4
1.8
2.5
4.3
1.2
0.8
3.8
2^
l.ft
2.5
2.35
29
4.6
1000

2.3
2.0
2.7 .
0.8
1.6
1.5
2.2
1.8
1.5
1.9
1.6
2.0
2.1
2.7
1.8
1.7
1.3
1.2
2.3
1.9
1.8
1.9
2.5
1.0
0.5
2.5
1.3
1.4
1.5
1.76
29
2.7
1200

1.2
1.7
2.8
0.5
1.2
1.7
2.1
2.1
1.5
1.4
1.7
1.6
2.6
1.9
1.6
1.6
1.4
1.1
1.8
1.4
1.7
1.1
1.5
1.2
0.1
1.6
1.4
1.4
2.0
1.54
29
2.8
1400

2.7
1.8
1.0
0.9
1.5
1.9
3.1
1.8
1.7
1.4
1.5
1.7
1.5
1.7
2.0
1.1
1.4
1.1
2.2
1.5
1.9
1.4
1.8
0.9
0.6
2.3
1.6
1.6
1.8
1.63
29
3.1
1600

2.2
2.1
1.0
0.8
1.1
3.0
2.6
1.8
1.9
2.0
1.8
2.1
1.8
1.7
2.3
1.6
1.6
1.3
3.4
1.8
2.1
2.0
2.3
1.1
0.3
2.2
2.1
1.9
2.2
1.86
29
3.4
1800

2.0
1.4
1.0
0.9
1.0
2.6
3.3
1.5
1.9
1.4
1.4
2.4
1.9
2.3
3.1
1.3
1.7
2.4
3.4
1.9
2.4
2.5
1.7
1.2
1.0
2.5
2.3
1.8
2.1
1.94
29
3.4
2000

1.8
1.6
1.1
0.8
7.7
2.7
2.1
1.7
2.0
1.9
1.7
2.4
1.9
2.5
4.0
1.1
1.2
2.0
2.2
2.0
2.0
2.1
1.0
0.9
0.9
2.9
2.1
1.9
2*4
2.08
29
7.7
2200

2.2
1.8
0.7
1.0
8.2
2.0
2.5
1.4
1.6
1.5
2.1
1.5
2.0
2.5
3.7
1.2
1.5
2.4
3.0
1.3
1.9
1.8
1.2
0.8
0.8
2.0
1.9
1.8
2.7
2.03
29
8,2
AVG

2.21
1.77
1.67
0.80
2.36
3.58
2.35
2.18
1.76
1.82
1.71
2.02
2.24
2.28
2.56
2.16
1.35
1.72
2.85
1.82
1.87
1.98
2.19
0.97
0.70
2.73
2.22
1.78
2.10
1.94

3.58
N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

348

MAX
(2)
3.4
2.1
2.8
1.0
8.2
6.3
3.3
2.9
2.0
2.4
2.1
2.7
4.0
3.2
4.0
4.0
1.7
2.4
4.9
2.4
2.4
3.1
4.3
1.2
1.2
5.0
4.0
2.0
2.7


8.2
UD
CO
(1) N«NUMBER OF VALID 2-HR SPOTS
(2) MAX«MAXIMUM 2-HR COM  (DV)
(3) N»DAYS WITH VALID VALUES
 *  MAX-MAXIMUM 2-HR COM  (MO)
VALUES GREATER THAN 6,0 UNDERESTIMATE ACTUAL VALUE

-------
CO
            Table 4-3


CONTINUOUS AIR MONITORING PROGRAM
  AISI SPOT (COH/1000 LIN.FT.I
                                                                                              TABULATED  09/17/69
DAY
OF
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
AVG
N(3)
MAX*
TIME (STARTING HOUR)

0000

2.3
0.7
1.6
1.7
2.3
0.5
0.6
1.4
2.2
1.0
0.4
0.8
1.6
1.2
0.8
2.0
2.8
1.5
1.0
0.9
0.6
1.2
1.5
1.5
1.9
1.1
1.3
1.1
0.7
4.3
0.9
1.40
31
4.3

0200

2.6
0.7
1.1

2!7
1.1
0.4
1.8
1.9
0.7
0.4
1.0
1.4
1.2
0.8
1.7
4.8
1.3
1.3
1.2
0.7
0.9
0.9
1.3
1.4
0.9
1.6
0.5
1.0
4.3
0.6
1.40
31
4.8

' 0400

2.2
0.8
1.0
2.5
2.6
0.5
2.6
1.7
1.6
1.2
0.6
1.3
1.7
1.5
1.3
2.0
3.8
1.8
1.4
0.8
0.1
1.3
0.9
1.5
1.3
1..7
1.6
1.9
2.1
2.7
0.7
1.57
31
3.8

0600

1.9
1.3
1.4
*.4
2.7
1.4
4.5
2.3
'.6
1.5
0.7
1.3
3.0
1.5
1.7
4.3
'.6
4.1
1.7
1.6
.1.0
2.0
1.5

2\0
2.2
.1.7
1.4
3.3
?'7
0.6
2.14
31
*.5

0800

1.8
1.7
1.5
2.2
2.1
1.4
2.8
2.2
1.6
1.6
1.0
1.5
2.0
1.7
1.5
4.6
3.8
2.3
2.5
1.3
1.0
2.0
1.7
1.3
1.2
1.8
1.2
1.6
1.8
1.9
1.2
1.86
31
4.6

1000

1.5
1.2
1.3
1.5
1.5
0.7
1.4
2.1
1.8
0.7
0.6
1.9
1.6
1.1
1.0
2.0
2.1
1.0
1.7
1.1
1.0
1.7
1.2
1.2
1.2
1.5
1.1
1.1
1.0
0.9
0.7
1.30
31
2.1

1200

1.3
1.8
0.8
1.4
1.0
0.8
0.9
2.3
1.6
0.6
1.2
1.7
0.9
1.5
1.2
1.2
0.8
1.0
1.1
0.9
1.0
1.1
1.2
0.4
1.1
0.7
1.2
1.0
1.2
0.9
1.1
1.12
31
2.3
CHICAGO ILLINOIS

1400

1.3
1.7
0.8
1.2
1.6
0.9
1.2
2,. 2
1.7
0,8
1.2
1.4
1.3
1.8
1.3
1.4
0.8
1.0
1.2
0.7
1.7
1.1
1.3
0.4
0.9
0.8
1.5
0.6
0.7
0.8
0.5
1.15
31
2.2

1600

1.8
1.5
1.1
1.5
2.8
1.0
1.2
2.6
1.4
0.8
1.7
1.6
1.7
1.5
2.2
1.2
0.9
1.3
1.6
1.5
1.6
1.3
1.3
0.9
1.4
0.9
0.9
1.4
0.7
0.9
2.1
1.42
31
2.8

1800

2.6
1.2
2.4
4.5
1.8
0.7
2.5
2.0
1.7
0.6
1.6
1.4
2.1
2.6
1.6
2.0
2.9
2.4
1.4
1.3
1.6
1.3
1.4
1.4
1.1
2.3
0.9
1.3
0.7
1.2
0.7
1.72
31
4.5

2000

2.4
1.5
2.1
3.9
1.3
0.9
2.5'
2.3
1.7
0.6
1.0
0.9
2.6
2.4
1.8
3.3
2.6
1.4
1.2
0.7
1.0
1.4
1.3
1.4
1.3
3.9
1.5
1.6
1.0
1.2
2.2
1.77
31
3.9

2200

1.8
1.6
2.2
2.2
1.1
0.7
1.2
5.2
1.4
0.5
0.9
1.3
1.5
1.3
2.1
4.2
2.3
1.3
1.1
0.7
1.5
1.4
1.5
1.0
0.9
2.1
1.2
1.4
2.6
0.4
1.0
1.60
31
5.2
MARCH/68

AVG

2.02
1.35
1.47
2.23
1.98
0.92
1.86
2.38
1.81
0.91
0.98
1.37
1.83
1.64
1.48
2.53
2.57
1.74
1.47
1.09
1.11
1.43
1.34
1.29
1.34
1.69
1.35
1.28
1.45
1.98
1.06
1.52

2.57

N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

372


MAX
(2)
2.8
1.8
2.4
4.5
2.8
1.4
4.5
5.2
2.6
1.6
1.7
1.9
3.0
2.6
2.2
4.6
4.8
4.1
2.5
1.6
1.7
2.0
1.7
2.6
2.0
3.9
1.7
1.9
3.3
4.3
2.2


5.2
         (1)  N«NUMBER OF VALID 2-HR SPOTS
         (2)  MAX'MAXIMUM 2-HR COM  (OY)
         (3)  N»DAYS WITH VALID VALUES
          •  MAX'MAXIMUM 2-HR COM  (MO)
         VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE

-------
                                                         Table 4-4
                                                                                               TABULATED  09/17/69
                                             CONTINUOUS AIR MONITORING
                                               AIS! SPOT (.COH/1000 LIN.FT.)
DAY
Of
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
AVG
NO)
MAX*
TIME (STARTING HOUR)

0000

0.9
1.7
1.5
1.1
0.7
2.9
1.5
1.4
1.2
1.4
2.1
0.9
1.1
0.6
1.3
1.1
0.9
1.1
0.5
1.1
0.5
1.1
0.9
0.4
0.3
2.0
2.7
0.9
3.7
0.7
1.27
30
3.7

0200

1.1
1.6
1.1
1.3
1.1
Z.I
0.9
0.8
1.7
1.3
2.5
0.7
0.7
0.4
0.8
1.7
0.9
1.*
0.7
1.1
0.1
0.5
1.2
0.7
1.0
2.3
1.9
0.*
3.3
0.5
1.20
30
3.3

0400

1.7
2.8
1.0
1.6
1.3
1.7
1.1
0.9
2.9
2.1
1.9
1.0
l.l
0.7
1.3
1.8
1.3
1.3
O.o
0.7
0.8
o.e
1.2
0.7
1.6
2.6
1.5
0.4
3.7
2.8
1.50
30
3.7

0600

0.6
3.4
1.5
1.6
1.2
2.2
1.7
i.5
'.5
*.7
1.9
0.9
1.0
1.2
2.5
1.7
1.4
*.4
1.4
1.1
1.0
1.4
1.1
1.4
2.0
3.4
2.0
0.5
?.7
4.1
1.B6
30
4.1

0800

0.5
1.8
1.2
1.2
i.o
0.8
O.B
1.3
1.0
1.4
1.2
1.1
1.1
1.2
1.?
1.6
1.6
1.7
1.3
1.6
I."
1.2
O.fl
1.2
1.7
5.5
1.0
0.6
1.3
2.0
1.37
30
5.5

1000

0.5
0.9
1.4
1.3
0.3
0.8
0.9
0.8
0.6
0.8
1.2
1.3
0.8
0.6
1.3
0.8
1.5
1.1
1.0
0.9
0.4
0.7
0.8
1.4
1.4
2.5
1.7
0.7
0.9
1.0
1.01
30
2.5

1200

0.9
1.0
1.3
1.3
0.4
1.0
1.0
0.9
O.B
0.4
1.0
1.1
1.4
0.8
0.7
0.6
1.7
1.2
1.7
0.7
0.3
0.9
0.8
1.4
0.9
1.2
1.3
0.6
1.3
1.0
0.98
30
1.7
CHICAGO ILLINOIS

1400

1.2
0.9
1.7
1.5
0.6
1.1
1.4
1.6
1.0
0.8
0.8
0.9
0.8
0.4
0.9
1.1
2.3
1.4
1.5
0.4
0.6
1.3
0.6
1.6
1.2
1.6
1.7
0.9
1.1
1.4
1.14
30
2.3

1600

1.8
1.6
2.4
1.6
0.6
1.0
1.0
1.2
0.7
0.9
1.2
1.1
1.1
0.7
0.9
1.2
1.7
1.7
2.4
0,6
0.8
1.4
0.7
1.2
1.6
1.1
1.3
1.4
0.7
1.5
1.23
30
2.4

1800

1.0
1.1
1.3
2.1
0.6
1.3
0.6
2.6
1.5
1.4
1.0
0.6
0.6
0.9
1.3
1.3
1.4
1.2
0.9
0.4
0.6
1.1
0.5
1.2
1.6
1.5
1.0
0.8
1.2
0.8
1.11
30
2.6

2000

3.0
1.4
1.3
1.3
0.3
2.3
1.2
1.*
l.B
1.1
1.5
1.2
0.8
1.1
1.8
1.2
0.9
1.5
0.9
0.5
0.6
1.1
0.8
1.1
2.7
1.5
1.1
0.8
1.4
1.1
1.29
30
3.0

2200

2.1
1.2
0.9
1.0
2.4
1.7
1.2
2.0
1.5
0.6
1.5
0.8
0.6
0.9
1.6
1.3
1.2
1.2
0.8
0.6
0.9
1.1
0.8
1.2
2.1
2.0
0.8
1.3
2.0
0.9
1.27
30
2.4
APRIL/68

AVG

1.31
1.66
1.42
1.44
0.91
1.63
1.14
1.42
1.47
1.36
1.50
0.99
0.97
0.84
1.36
1.33
1.44
1.46
1.22
0.84
0.68
1.10
0.88
1.17
1.55
2.31
1.54
0.83
2.06
1.52
1.27

2.31

N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

360


MAX
(2)
3.0
3.4
2.4
2.1
2.4
2.9
1.7
2.6
2.9
3.7
2.5
1.3
1.4
1.2
2.5
1.8
2.3
2.4
2.4
1.6
1.0
1.4
1.2
1.6
2.7
5.5
2.7
1.4
3.7
4.1


5.5
tO
01
(1) N=NUMBER OP VALID 2-HR SPOTS
<2> MAX'MAXIMUM 2-HR COH  (Dy)
(3) NsDAYS WITH VALID VALUES
 «  MAX»MAXIMUM 2-HR COH  (MO)
VALUFS GREATER THAN 6.0 UNDERESTIMATE ACTUAL  VALUE

-------
                                                      Table 4-5
                                                                                              TABULATED 09/17/69
                                           CONTINUOUS AIR MONITORING  PROGRAM
                                             AISI  SPOT  (COH/1000  LIN.FT.)
CO
as
         DAY
         OF
TIME (STARTING HOUR)
CHICAGO ILLINOIS
MAY/68
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
AVG
N(3)
MAX*
0000

0.6 .
0.2
1.3
0.3
0.2
2.0
0.6
0.7
1.2
2.0
0.3
O.fl
Z.I
1.6
1.2
0.7
0..8
1.5
0.7
1.4
2.0
2.4
0.7
0.7
0.8
0.7
0.6
1.0
1.6
0.4
2.6
1.08
31
2.6
0200

0.7
0.6
1.1
0.4
0.4
1.7
0.8
0.5
0.7
2.0
0.3
0.5
2.4.
1.5
0.9
0.3
1.0
1.5
0.1
1.1
1.6
1.8
0.6
0.5
0.5
0.7
0.6
0.7
1.7
0.7
1.9
0.96
31
2.4
0400

0.6
4.9.
1.7
1.7
0.2
2.4
1.4
1.2
2.1
1.3
0.4
0.4
1.9
1.6
2.0
0.3
1.3
1.6
0.6
1.7
2.8
2.3
0.6
0.6
0.3
0.6
1.2
1.2
1.9
1.2
2.8
1.44
31
4.9
0600

1.1
*.5
1.8
*.4
0.3
2.3
*.3
4.3
0.9
1.0
0.8
0.8
1.2
2.0
$.4
V.2
1.5
1.4
1.1
2.3
<.4
2.3
1.4
i.2
0..6
0.7
1.2
2.7
1.4
1.6
3.3
i.59.
31
4.5
0800

1.3
1.4
1.7
1.4
0.3
1.1
1.0
1.1
0.9
1.1
1.2
i.n
1.1
0.8
1.5
0.7
1.0
1.1
1.2
1.1
0.9
1.6
1.3
1.6
0.8
0.7
i.o
1.1
1.1
0.5
1.1
1.08
31
1.7
1000

1.0
1.2
1.4
0.9
0.5
0.9
0.7
0.7
0.9
0.8
1.2
0.8
1.3
0.8
1.1
0.7
0.9
1.2
0.7
0.6
1.4
0.8
1.3
1.1
1.2
0.7
1.0
0.9
1.2
0.1
1.1
0.93
31
1.4
1200

1.2
1.1
1.2
1.2
0.6
1.1
1.1
0.9
0.8
1.0
1.0
0.6
1.5
O.T
1.4
0.9
1.8
1.0
0.6
1.2
0.9
0.7
1.4
1.1
1.3
1.2
1.1
1.0
1.5
0.4
2.3
1.09
31
2.3
1400

1.4
1.3
1.7
0.9
0.3
1.2
1.0
0.6
0.7
1.3
1.1
0.6
1.7
O.B
1.6
0.7
1.3
1.2
0.8
1.1
1.2
0.9
1.5
2.2
1.6
1.0
1.0
1.6
1.7
0.8
2.0
1.18
31
2.2
1600

1.1
1.2
1.6
0.8
0.5
1.5
1.3
1.0
1.0
0.8
1.2
1.1
1.6
0.6
1.5
1.0
0.7
0.9
0.8
1.2
0.8
1.5
1.6
2.1
1.3
0.6
1..3
1.3
1.8
0.5
1.*
1.14
31
2.1
1800

1.4
1.9
1.8
0.5
0.3
0.6
0.9
1.0
0.9
0.9
0.8
1.7
0.9
1.0
1.1
1.1
1.1
1.2
1.5
2.4
0.7
1.4
1.3
2.3
0.9
0.7
1.4
1.1
1.3
0.5
1.1
1.15
31
2.4
2000

1.2
1.4
1.3
0.7
0.7
0.8
1.3
1.1
0.6
0.5
0.9
O.B
1.3
l.l
0.7
0.9
1.5
0.5
2.2
2.3
2.4
1.2
1...2
2.4
l.l
1.3
1.0
1.4
1.1
2.0
2.0
1.25
31
2.4
2200

1.1
1.4
0.8
0.8
0.4
0.8
0.9
0.6
1.4
0.6
0.8
1.3
0.9
1.4
0.6
0.9
2.1
0.4
1.6
2.2
3.3
1.0
1.0
1.4
1.5
1.0
1.2
1.3
0.7
4.3
1.8
1.27
31
4.3
AVG

1.09
1.81
1.49
1.04
0.43
1.40
1.07
0.92
1.04
1.14
0.88
0.91
1.52
1.21
1.37
0,75
1.29
1.16
1.04
1.60
1.73
1.52
1.20
1.47
1.02
0.88
1.09
1.33
1.46
1.14
2.00
1.18

2.00
N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

372

MAX
(2)
1.4
4.9
1.8
2.4
0.7
2.4
1.4
1.3
2.1
2.0
1.2
1.7
2.4
2.0
2.4
1.1
2.1
1.6
2.2
2.4
3.3
2.4
1.6
2.4
1.6
1.3
1.4
2.7
1.9
4.3
3.3


4.9
         (1) N-NUMBER OF VALID 2-HR SPOTS
         (2) MAX»MAXIMUM 2.HR COM  
-------
                                                      Table 4-6
                                            CONTINUOUS  AIR  MONITORING PROGRAM
                                              AISI  SPOT l.COH/1000 LIN.FT.)
                                                                                              TABULATED 09/17/69
DAY
OF
MCNTM

01
02
03
04
05
06
07
OR
09
10
11
12
13
1*
15
16
17
IB
19
20
21
22
23
24
25
26
27
28
29
30
AV6
N(3i
MAX*
TIME (STARTING HOUR)

0000

1.3
0.8
1.4
0.8
1.9
1.3
1.0
2.3
2.0
0.3
0.7
0.2
1.0
0.4
0.6

0.6
1.7
1.8
1.3
1.1
0.9
0.6
0.3
0.7
0.6
0.6
0.8
0.9
O.fl
0.94
29
2.3

0200

0.7
0.8
2.6
1.1
1.0
1.*
1.4
1.6
2.2
0.1
0.6
0.5
0.2
0.8
1.1
0.4
0.3
1.0
1.9
2.7
0.5
0.5
0.9
1.6
0.4
0.2
0.4
0.4
0.*

0.95
29
2.7

04on

0.8
0.7
3.6
0.9
1.8
1.5
1.3
2.0
2.3
1.4
0.7
0.7
0.9
0.8
1.4
0.1
0.8
1.9
1.9
3.2
0.9
0.1
1.1
2.2
1.0
0.6
0.6
1.0
0.6
0.9
1.21
30
3.6

0600

1.4
0.3
3.0
V.5
1.9
i.5
2.0
1.9
1.8
1.6
2.1
0.7
0.8
i.3
9.3
0.0
1.6
1.2
2.3
0.6
1.6
0.6
1.4
1.4
1.6
1.2
0.9
1.0
0.9
0.5
1.26
30
3.0

0800

1.0
0.9
1.1
0.9
O.B
1.4
0.9
1.6
0.9
1.0
1.1
0.9
0.6
O.R
0.9
0.3
O.B
2.0
1.4
0.9
1.1
O.P
0.6
l.P
1.?
1.9
1.1
0.8
0.9
0.2
0.99
30
z.o

1000

O.B
0.8
0.5
0.4
1.2
1.2
1.2
0.8
0.8
1.1
O.B
1.0
0.2
0.8
0.4
0.4
0.7
1.7
1.1
0.3
0.9
0.4
0.6
1.2
0.9
1.0
0.9
0.7
1.2
0.2
0.80
30
1.7

1200

0.7
0.1
0.9
0.9
1.1
0.7
1.1
1.0
1.3
1.7
0.6
0.7
0.9
0.6
0.6
0.4
0.6
1.6
1.2
0.6
0.8
0.8
1.9
0.9
1.3
0.4
0.7
0.7
0.9
0.3
0.89
30
1.7
CHICAGO ILLINOIS

1400

1.1
0.6
0.4
0.8
1.0
1.5
1.5
1.4
0.9
1.4
0.8
0.9
0.8
0.9
1.0
0.7
0.5
0.9
0.9
0.9
0.9
0.8
0.7
1.3
1.2
0.8
1.1
0.9
0.6
0.3
0.91
30
1.5

1600

0.6
0.8
1.0
0.7
1.1
1.1
1.4
1.2
1.4
1.8
0.9
0.9
O.fl
1.1
0.6
0.3
0.9
1.9
0.9
1.4
1.2
0.3
1.0
1.1
1.0
0.5
1.4
1.0
0.5
0.3
0.97
30
1.9

1800

0.9
0.9
0.7
0.8
1.1
1.5
1.4
1.0
1.1
1.1
0.7
0.5
0.8
1.6
0.4
1.3
0.7
1.4
0.9
0^9
1.5
0.6
1.1
0.8
0.6
0.5
1.1
0.6
0.7
0.5
0.92
30
1.6

2000

1.3
0.6
0.5
1.0
1.3
0.8
0.9
1.0
1.4
1.6
0.8
0.9
1.5
0.8
0.7
0.5
0.7
1.2
0.9
0.9
0.9
0.4
1.7
1.4
0.7
0.5
1.0
0.5
1.0
0.2
0.92
30
1.7

2200

1.2
0.3
0.8
2.3
0.8
1.4
1.4
1.4
0.6
1.1
0.5
0.4
0.8
0.9
0.8
0.7
O.B
1.3
0.8
1.3
1.2
0.4
0.4
1.0
0.7
0.8
1.1
0.9
0.2
0.2
0.88
30
2.3

AVG

1.03
0.67
1.41
0.97
1.26
1.30
1.32
1.49
1.44
1.23
0.89
0.75
0.79
0.95
0.75
0.50
0.78
1.49
1.37
1.28
1.08
0.56
1.02
1.30
0.98
0.76
0.96
0.82
0.76
0.41
.96

1.49
JUNE/6P

N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
1?.
11
12
12
12
12
12
12
17.
12
12
12
12
12
12
11

358


^AX
(2)
1.4
0.9
3.6
2.3
1.9
1.5
2.0
2.3
2.3
1.8
2.1
1.0
1.5
1.6
1.4
1.3
1.6
2.0
2.3
3.2
1.6
0.8
1.7
2.2
1.6
1.5
1.4
1.0
1.2
O.fl


3.6
CO
          (1)  NaNUMBER OF VALID 2-HR SPOTS
          (2)  MAX'MAXIMUM 2-HR COH (DV>
          (3)  NoDAYS  WITH VALID VALUES
           *   MAX»MAXIMUM 2-HR COH (MO)
          VALUES  GREATER THAN 6,0 UNDERESTIMATE ACTUAL VALUE

-------
                                                      Table 4-7
                                                                                             TABULATED 09/17/69
                                           CONTINUOUS AIR MONITORING PROGRAM
                                             AISI SPOT  (COH/1000 LIN.FT.)
UD
oo
         DAY
         OF
TIME (STARTING HOUR)
CHICAGO ILLINOIS
JULY/68
MONTH

01
02
03
04
05
06
07
OR
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
AVG
•N(3>
MAX*
0000

0.3
0.5
1.4
1.7
0.9
0.8
1.8
1.3
0.4
0.4
0.3
0.6
1.0
0.5
0.4
1.1
0.5
0.4
1.0
0.5
2.6
0.4
0.6
0.9
1.1




1.8
0.0
0.85
27
2.6
0200

0.4
0.6
1.5
0.9
0.7
0.4
1.6
0.8
0.6
0.0
0.7
1.5
1.2
0.7
0.4
0.6
0.4
0.4
0.4
0.4
2.1
0.4
0.2
0.6





2.2
0.4
0.77
26
2.2
0400

1.1
0.9
1.1
0.7
1.1
0.5
0.9
1.2
0.7
0.1
0.9
1.7
2.2
O.i".
0.7
1.3
0.9
O.B
0.9
1.6
1.1
0.6
0.3
1..9





1.2
1.0
0.99
26
2.2
0600

0.9
0.8
1.6
0.6
0.5
9.4
1.2
±.5
0.9
V.5
1.1
2.1
1.6
0.6
0.9
1.2
1.0
1.0
1.1
0.7
0.6
4.3
1.3
2.2





1.3
0..9
1.07
26
2.2
0800

1.1
0.4
0.6
0.6
1.?
0.2
0.7
1.4
1.5
0.6
0.6
1.7
z.o
0.2
0.<»
1.3
O.B
1.0
1.1
0.4
0.4
0.8
0.9
2.2





0.7
1.1
0.93
26
2.2
1000

0.8
0.7
0.4
0.5
1.1
0.1
0.2
1.3
1.1
0.3
0.4
1.4
0.7
0.5
0.9
0.5
0.6
1.0

0.9
0.6
0.3
1.2
1.2




0.5
0.7
o.e
0.71
26
1.4
1200

0.4
0.3
O.I
0.7
0.7
0.1
0.3
0.8
0.9
0.8
1.3
1.4
0.6
0.5
0.6
0.2
0.9
1.0
1.0
0.4
0.4
0.4
1.2
0.8




0.1
0.7
0.4
0.62
27
1.4
1400

0.7
0.9
0.5
0.3
0.5
0.4
0.8
0.9
0.8
0.7
1.0
1.1
0.6
0.5
0.3
0.8
0.7
1.4
0.4
0.4
0.4
0.9
0.4
1.1




0.3
0.6
0.9
0.67
27
1.4
1600

0.3
0.7
0.7
0.5
0.8
0.6
0.5
1.1
0.6
1.0
1.3
1.1
0.9
0.4
0.7
0.7
0.7
1.0
0.9
0.6
0.8
0.5
1.5
0.8




0.4
O.B
0.8
0.76
27
1.5
1800

0.1
0.6
0.5
0.1
0.8
0.2
0.3
0.7
0.5
0.8
1.4
1.2
1.0
0.7
0.4
0.6
0.9
1.5
1.1
0.5
0.6
0.7
1.1
0.4




0.4
0.2
0.5
0.65
27
1.5
2000

0.8
0.1
0.4
1.6
0.2
0.6
1.2
0.8
0.4
0.7
1.4
1.5
0.6
0.7
0.5
0.7
0.7
1.7
1.1
0.4
O.B
0.6
0.8
1.0




0.6
0.8
0.7
0.79
27
1.7
2200

0.7
0.9
1.8
0.6
0.6
3.0
0.5
0.9
0.1
0.5
1.5
1.2
0.4
0.3
2.4
0.6
0.4
1.4
0.8
0.6
0.8
0.8
0.8
0.7




1.3
0.4
1.1
0.92
27
3.0
AVG

0.68
0.66
0.92
0,77
0.7B
0.64
0.86
1.11
0.75
0.57
1.03
1.42
1.12
0.55
O.B2
0.84
0.76
1.09
0.91
0.65
0.98
0.68
0.90
1.19




0.55
0.99
0.75
.80

1.42
N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
12
12
12
12
12




07
12
12

318

MAX
(2)
1.1
0.9
i.e
1.7
1.2
3.0
1.8
1.5
1.5
1.0
1.5
2.1
2.2
0.7
2.4
1.3
1.0
1.7
1.1
1.6
2.6
1.3
1.5
2.2




1.3
2.2
1.1


3.0
         ID NBNUMBER OF VALID Z-HR SPOTS
         (2) MAX«MAXIMUM 2-HR COH  (DV)
         (3) N'DAYS WITH VALID VALUES
          *  MAXnMAXIMUM 2«HR COH  
         VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE

-------
                                                       Table 4-8
                                           CONTINUOUS AIR MONITORING PROGRAM
                                             AISI SPOT  ICOH/1000 LIN.FT.)
                                                                                              TABULATED  09/17/69
DAY
OF
MONTH

01
02
03
04
09
06
07
08
09
10
11
12
13
14
19
16
17
IS
19
20
21
22
23
24
25
26
27
28
29
30
31
AVG
N(3)
MAX*
TIME (STARTING HOUR)

0000

0.7 .
2.1
1.2
0.6
0.2
0.2
0.7
0.4
1.2
0.4
1.0
0.9
0.7
0.9
0.4
0.6
0.6
0.4
0.6
0.5
1.0
0.6
1.2
0.5
0.2
0.1
0.9
0.7
1.3
1.4
0.7
0.73
30
2.1

0200

0.4
2.0
1.1
1.0
0.9
0.5
0.*
0.2
1.2
0.3
0.7
1.7
0.9
1.0

0.9
0.7
0.3
0.6
0.6

1.0
0.6
0.6
0.4
0.3
U3
3.1
1.4
0.7
1.8
0.91
29
3.1

0400

0.3
1.3
1.2
0.7
1.3
0.7
0.7
1.5
l.S
0.4
0.9
1.6
0.8
1.5
0.6
1.2
O.B
0.6
0.8
0.3

0.9
1.5
0.5
0.4
0.8
0.3
3.0
0.5
1.6
1.6
1.00
30
3.0

0600

0.5
1.1
2.0
1.*
2.1
1.0
1.4
1.7
2.3
9.4
0.8
1.9
0.9
0.7
1.2
1.4
0.9
0.5
1.1
0.6

1.4
1.4
1.2
y.4
0.9
0.6
2.3
2.5
1.9
1.7
1.27
30
*.5

0800

0.6
0.8
1.4
1.1
1.2
0.9
1.4
1.5
1.7
0.5
0.5
0.6
1.2
O.P
1.4
1.1
1.4
0.1
0.5
0.7

1.1
1.6
0.3
0.6
0.9
0.8
0.1
2.6
2.3
1.9
1.05
30
2.6

1000

0.5
0.8
1.1
1.0
1.0
0.8
1.2
1.0
1.4
0.6
0.3
0.3
0.7
0.6
1.2
0.7
0.8
0.2
1.2
0.9

0.8
0.7
0.6
0.1
0.5
0.6
0.5
1.8
1.8
1.8
0.85
30
1.8

1200

0.7
0.6
1.0
0.8
0.5
0.6
0.7
0.7
1.6
0.4
0.3
0.9
0.8
0.5
1.0
0.9
0.6

0.6
1.0

0.5
0.9
0.8
0.3
0,5
0.6
0.5
1.1
1.1
1.4
0.75
29
1.6
CHICAGO ILLINOIS

1400

0.7
0.6
0.6
1.0
0.5
0.9
1.2
0.7
1.3
0.4
0.2
0.6
0.8
0.7
1.1
0.7
0.8
0.4
1.0
1.5
0.5
0.7
1.1
0.2
0.9
0.5
0.9
0.7
0.7
1.0
1.1
0.78
30
1.5

1600

0.6
0.3
0.7
0.7
0.4
0.7
1.0
1.1
1.2
0.6
0.5
0.7
0.6
0.8
1.3
1.0
0.5
0.7
0.9
1.0
0.8
0.6
0.9
0.6
0.7
1.0
0.5
1.0
1.0
1.5
1.2
0.81
30
1.5

1800

0.7
0.6
0.7
0.5
0.5.
0.4
0.8
1.5
0.9
0.5
0.2
0.8
1.1
0.5
1.1
0.6
0.4
0.5
0.6
0.9
1.0
0.6
0.5
0.3
0.9
0.4
0.5
1.2
1.1
0.9
1.1
0,71
30
1.5

2000

0.3
1.2
0.6
1.3
0.7
0,4
0.8
1.1
1.0
0.6
0.4
O.B
1.3
0.9
0.8
1.1
0.8
1.1
0.4
1.0
0.6
0.5
1.0
0.5
0.7
0.5
0.4
1.1
0.6
1.0
1.5
0.81
30
1.5

2200

0.4
1.2
1.4
1.5
0.8
1.7
0.7
1.2
0.5
0.6
1.4
0.9
1.5
0.7
1.0
1.1
0.7
0.9
0.3
0.9
0.7
1.0
0.3
0.4
0.4
0.6
0.3
0.9
0.5
0.9
0.9
0.87
30
1.7

AVG

0.56
1.09
1.12
1.01
0.89
0.77
0.96
1.09
1.38
0.52
0.64
1.01
0.99
0.84
1.05
0.99
0.78
0.56
0,75
0.85

0.86
1.05
0.5R
0.56
0.63
0.66
1.29
1.31
1.3ft
1.45
.86

1.45
AUG/68

N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
11
12
12
11
12
12

12
12
12
12
12
12
12
12
12
12

358


MftX
(2)
0.7
2.1
2.0
1.5
2.1
1.7
1.4
1.7
2.3
0.6
1.4
1.9
1.5
1.5
1.4
1.4
1.4
1.1
1.2
1.5

1.4
1.6
1.2
0.9
1.0
1.3
3.1
2.6
2.3
1.9


3.1
CO
CD
(1) N»NUMBER OF VALID 2-HR SPOTS
(2) MAX'MAXIMUM 2-HR COM  (Dv)
(3) NaDAYS WITM VALID VALUES
 •  MAX'MAXIMUM 2.HR COH  (MO)
VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE

-------
                                              Table 4-9


                                  CONTINUOUS AIR MONITORING PROGRAM
                                    AISI SPOT  (COH/1000 LIN.FT.)
TABULATED 09/17/69
DAY
OF
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
29
26
27
28
29
30
AVG
N(3)
MAX*
TIME (STARTING HOUR)

0000

0.9 .
0.8
0.4
1.1
0.7
0.8
1.3
0.2
O.fl
0.7
0.6
1.8
2.8
1.1
1.7
1.0
0.3
0.8
1.3
0.8
1.2
0.6
1.6
0.6
l.l
2.0
2.5
0.6
2.9
1.8
1.16
30
2.9

0200

0.9
0.7
0.7
0.9
0.8
0.9
1.9
0.3
0.6
1.2
0.6
1.7
3.6
1.0
l.«
l.l
0.6
0.9
0.7
1.3
1.6
0.7
1.8
0.2
1.4
2.0
1.7
0.2
3.1
1.2
1.19
30
3.6

0400


0.6
1.2
1.2
0.8
1.3
2. A
0.5
0.7
0.7
1.0
2.5
3.0
1.4
1.3
1.4
0.3
0.7
0.7
2.3
1.7
0.4
2.2
n.6
l.l
1.9
2.1
1.8
2.6
1.8
1.39
29
3.0

0600

0.0
0.6
1.2
2.0
1.8
1.1
1.9
0.8
1.6
1.2
1.7
3.3
3.3
1.7
1.4
1.8
1.1
1.0
1.2
3.1
2.1
0.3
<.6
1.1
1.9
*.5
*.4
3.4
'.6
2.1
1.79
30
*.5

0800

0.4
1.0
1.3
1.2
1.3
1.3
0.7
o.s
1.3
1.2
1.1
1.7
2.2
1.*
1.3
1.6
0.7
1.3
0.9
2.3
2.1
1.2
1.9
1.1
1.2
1.6
1.7
0.5
1.2
1.5
1.28
30
2.3

1000

0.3
0.8
1.6
1.0
0.7
1.0
0.5
0.4
0.8
1.2
0.7
1.2
1.1
0.7
1.1
1.3
0.9
0.6
0.9
1.0
1.8
1.6
1.0
1.6
0.7
1.1
1.4
0.5
0.8
1.1
0.98
30
1.8

1200

0.9
0.5
0.6
0.9
0.6
0.6
0.3
0.7
0.8
1.0
l.o
0.9
0.9
0.6
0.8
0.6
0.9
1.1
1.0
1.0
1.0
1.9
0.8
1.5
0.3
0.7
0.9
0.8
0.7
0.8
0.83
30
1.9
CHICAGO ILLINOIS

1400

0.5
0.3
0.8
0.9
0.9
0.8
0.7
0.3
0.8
1.3
1.3
1.1
1.1
0.8
1.4
0.8
1.2
1.1
1.0
1.0
1.1
2.0
0.5
0.9
0.7
0.9
1.0
0.7
0.5
1.0
0.91
30
2.0

1600

0.4

1.0
1.6
0.8
0.7
1.1
0.8
0.8
1.1
1.5
1.0
1.4
0.9
0.9
1.0
1.1
1.2
1.2
1.6
1.0
1.7
1.0
0.7
O.B
1.1
1.1
0.4
0.6
0.9
1.01
29
1.7

1800

0.7
0.7
1.4
1.2
1.0
1.4
1.0
1.3
0.7
1.1
0.8
1.7
2.2
1.5
0.9
0.5
0.8
1.6
1.5
1.2
2.1
1.7
0.8
1.3
1.1
0.6
1.2
0.3
1.5
1.1
1.16
30
2.2

2000

0.7
0.7
1.0
1.0
1.0
1.4
O.B
1.1
0.6
0.9
O.B
2.4
2.2
1.9
1.5
0.6
0.6
1.0
1.0
2.1
2.6
0.9
0.7
1.3
2.0
2.3
0.9
1.5
2.0
1.3
1.29
30
2.6

2200

0.8
0.7
0.9
0.8
1.0
1.5
0.8
1.0
0.8
0.8
3.3
2.6
1.1
1.6
1.7
0.5
0.3
1.1
1.6
1.2
1.6
2.3
0.6
1.1
2.4
2.7
0.8
3.3
1.8
0.4
1.37
30
3.3

AVG

0.64
0.70
1.06
1.21
0.99
1.11
1.17
0,70
0.90
1.07
1.24
1.87
2.10
1.27
1.33
1.06
0.76
1.07
1.12
1.61
1.71
1.32
1.31
1.04
1.26
1.75
1.50
1.22
1.73
1.29
1.20

2.10
SEPT/68

N
(1)
11
11
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

358


MAX
(2)
0.9
1.0
1.6
2.0
1.8
1.5
2.6
1.3
1.6
1.3
3.3
3.3
3.6
1.9
1.7
1.8
1.2
1.6
1.6
3.1
2.6
2.3
2.6
1.6
2.4
3.5
2.5
3.4
3.1
2.1


3.6
(I)  NsNUMBER OF VALID 2-HR SPOTS
(2)  MAX»MAXIMUM 2-HR COM (DV)
(3)  NiDAYS WITH VALID VALUES
 »  MAX'MAXIMUM 2-HR COH (MO)
VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE

-------
                                             Table 4-10


                                  CONTINUOUS AIR MONITORING PROGRAM
                                    AISI SPOT (.COH/1000 LIN.FT.)
TABULATED 09/17/69
DAY
OF
MONTM

01
02
03
04
05
06
07
08
09
10
11
12
13
U
19
16
17
in
19
20
21
22
23
24
25
2A
27
28
29
30
31
AVG
N<3)
MAX*
TIME (STARTING HOUR)

0000

0.7 .
0.3
0.1
0.5
3.3
0.9
1.6
1.0
1.1
0.7
1.7
1.8
1.0
0.7
0.8
0.5
1.2
0.4
0.9
1.2
1.9
0.5
1.6
1.0
0.5
1.5
O.R
1.1
1.2
1.0
1.2
1.05
31
3.3

0200 '

0.6
0.8
0.5
1.0
2.2
1.0
0.9
1.4
1.3
0.8
2.7
2.3
1.5
0.9
0.6
0.4
0.8
0.3
0.5
0.9
1.9
1.1
1.7
0.8
1.2
1.1
0.7
1.2
0.9
3.8
1.5
1.20
31
3.8

0400

0.9
1.0
O.R
1.9
2.0
1.3
2.2
3.1
1.7
1.9
5.5
2.5
2.0
1.0
0.7
1.4
1.3
1.1
0.9
0.9
3.7
1.4
2.4
2.3
1.6
2.1
P. 6
O.R
1.7
4.6
1.5
1.83
31
5.5

0600

1.2
0.7
1.2
*.5
2.8
2.1
?.4
2.8
2.5
3.2
*.7
3.7
$.4
1.9
1.3
2.1
1.4
1.8
i.5
1.9
?.8
1.5
3.4
*.7
*.6
*.5
1.1
2.7
3.2
?.8
3.8
2.52
31
?.8

0800

1.0
1.1
1.2
1.4
1.2
o.e
1.5
1.9
2.3
1.9
2.9
2.4
1.0
1.1
0.9
1.*
1.2
1.2
1.1
1.?
1.7
1.2
2.R
2.1
2.3
l.B
0.7
1.5
2.5
1.9
2.5
1.60
31
2.9

1000

0.6
0.8
0.6
1.1
0.5
1.0
1.2
1.0
1.9
1.2
1.2
3.0
0.5
1.3
0.8
0.6
0.5
0.8
0.8
0.7
1.1
0.8
1.9
1.6
1.5
1.0
0.5
1.6
1.6
0.9
1.8
1.10
31
3.0

1200

1.0
0.7
0.7
1.1
0.6
0.7
1.3
1.1
1.6
1.2
0.9
1.6
0.6
0.8
0.5
0.7
0.9
0.9
0.3
0.8
0.3
0.6
1.0
1.8
1.2
0.8
0.4
1.3
1.3
0.9
1.6
0.94
31
1.8
CHICAGO ILLINOIS

1400

0.8
0.6
1.0
1.1
0.5
1.3
1.2
1.0
1.4
1.2
1.2
1.2
0.5
0.8
0.9
1.1
0.9
1.2
0.7
0.7
1.0
1.0
1.2
1.4
1.3
0.8
0.6
1.6
1.0
0.9
1.6
1.02
31
1.6

1600

1.0
0.7
0.9
1.0
0.9
1.4
0.9
1.0
0.9
1.9
1.1
2.0
0.4
1.4
1.0
0.7
1.2
0.5
1.3
1.0
1.7
1.3
0.7
2.3
Z.3
1.1
0.0
2.1
1.4
1.5
2.9
1.26
31
2.9

1800

1.0
1.2
0.9
1.6
1.2
1.1
0.8
1.0
l.l
1.9
1.9
2.5
1.1
1.0
0.4
1.3
0.4
1.2
1.4
1.9
1.5
1.2
1.2
1.9
1.7
1.4
1.1
2.0
1.6
0.9
2.5
1.35
31
2.5

2000

0.5
1.3
0.9
1.8
1.0
1.6
1.5
0.9
1.1
1.9
2.9
2.0
1.6
0.8
0.9
1.0
0.6
1.1
1.4
2.2
1.1
1.5
1.5
1.4
1.8
1.3
1.0
1.2
1.9
1.2
1.0
1.35
31
2.9

2200

0.5
0.6
1.0
3.5
1.3
1.1
1.1
0.8
0.7
2.5
2.6
2.1
1.2
1.0
0.5
0.7
0.1
0.9
1.5
2.5
0.9
1.0
1.7
0.9
z.o
1.1
0.7
1.5
1.6
1.5
0.6
1.28
31
3.5

AVG

0.86
0.86
0.86
1.58
1.51
1.23
1.43
1.45
1.51
1.73
2.4R
2.29
1.19
1.10
0.82
1.03
0.92
0.99
1.07
1.37
1.84
1.13
1.79
1.72
1.71
1.48
0.79
1.62
1.69
2.03
1.91
1.37

2.48
OCT/68

N
(1)
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

372


MAX
(2)
1.2
1.3
1.2
3.5
3.3
2.1
2.4
3.1
2.5
3.2
5.5
3.7
2.4
1.9
1.3
2.1
1.4
1.8
1.5
2.5
4.8
1.5
3.4
2.7
2.6
3.5
1.1
2.7
3.2
4,fl
3.8


5.5
(1) NoNUMBER OF VALID 2-HR SPOTS
(2) MAX'MAXIMUM 2.HR COM  (DY)
(3) N=OAYS WITH VALID V«LUES
 •  MAX«MAXIMU"I 2-HR COH  (MO)
VALUES GREATER THAN 6.0 UNDERESTIMATE  ACTUAL  VALUE

-------
                                              Table 4-11
                                  CONTINUOUS  AIR  MONITORING  PROGRAM
                                     AISI  SPOT (COH/1000  LIN.FT.)
                                                                                     TABULATED 09/17/69
DAY
OF
MONTH

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
in
19
20
21
22
23
24
25
26
27
28
29
30
AVG
N(3)
MAX*
TIME (STARTING HOUR)

0000

1.1
1.7
0.7
0.4
0.5
1.0
0.2
1.4
1.5
1.4
2.0
1.1
2.0
0.9
1.4
1.1
1.3
1.9
0.9
0.9
0.9
1.6
1.2
0.9
l.B
l.P
1.4
0.8
0.9
1.5
1.20
30
2.0

0200

0.2
1.0
0.5
0.4
1.2
0.7
0.5
0.8
1.6
0.6
1.8
0.5
1.8
1.1
1.1
0.6
1.4
1.9
1.0
0.9
1.0
2.0
1.4
1.1
1.*
2.5
1.3
0.5
O.B
1.5
1.10
30
2.5

0400

0.7
1.7
0.4
1.0
2.7
n.4
0.5
1.5
2.0
1.2
1.4
1.3
2.0
l.B
1.1
0.3
1.4
1.6
1.1
1.6
1.4
2.9
1.8
1.2
1.6
1.7
1.1
1.1
1.7
1.2
1.38
30
2.9

0600

1.1
1.8
V.4
1.4
*.4
0.9
0.6
2.0
2.3
2.3
2.1
2.5
2.7
1.8
2.8
0.9
1.9
4.4
1.6
l.B
2.0
3.2
1.4
2.3
3.3
f.5
1.3
V.3
2.3
1.0
1.87
30
?.5

0800

0.8
1.2
0.3
O.B
1.6
1.6
0.7
1.6
1.*
2.0
2.6
2.6
3.2
2.6
2.1
0.5
1.1
2.2
1.7
1.6
1.4
3.4
2.0
1.3
3.7
2.3
1.0
0.4
1.7
1.0
1.68
30
3.7

1000

1.1
0.8
0.5

1.1
0.7
0.7
1.3
1.1
0.8
2.2
1.7
1.6
2.1
1.8
1.0
0.8
1.9
1.5
1.4
1.2
3.8
1.0
1.8
1.7
1.5
0.9
0.5
1.5
1.5
1.36
29
3.8

1200

0.5
0.5
0.5
0.8
1.1
1.1
1.5
1.6
0.9
0.2
1.6
1.5
1.0
1.4
1.2
1.5
1.0
1.6
1.7
1.1
1.5
1.7
1.2
0.9
1.5
0.9
0.6
0.3
1.*
1.2
1.11
30
1.7
CHICAGO ILLINOIS

1400

1.4
0.9
0.5
1.1
1.1
1.0
1.4
1.3
1.2
0.7
1.9
1.4
1.0
1.9
1.4
1.3
1.4
1.8
1.5
1.4
1.9
1.1
1.1
0.9
1.7
1.4
0.7
0.3
1.8
1.1
1.25
30
1.9

1600

1.3
1.7
1.2
1.0
1.6
1.0
1.5
2.1
0.8
0.5
2.0
1.7
2.1
1.6
1.7
1.1
1.8
1.9
1.5
2.0
2.0
2.3
1.9
1.8
2.6
1.7
1.1
1.6
1.7
2.5
1.64
30
2.6

1800

1.6
1.6
0.3
0.9
0.5
1.1
1.4
1.6
1.3
1.9
1.6
2.1
3.0
2.1
2.8
1.1
1.8
2.8
1.5
U8
1.8
2.1
1.1
2.2
1.5
1.5
0.9
1.7
1.6
2.0
1.64
30
3.0

2000

1.3
1.1
0.5
1.2
l.l
0.9
1.4
1.9
1.1
2.6
1.9
2.4
1.3
2.0
0.8
1.0
1.5
2.0
1.6
1.9
1.5
0.9
1.6
2.1
2.9
1.3
0.7
1.2
1.3
2.4
1.51
30
2.9

2200

1.5
0.9
0.4
0.8
1.0
0.6
1.3
2.1
1.8
3.2
1.7
2.5
1.2
0.9
1.4
2.3
1.6
1.4
1.1
2.1
1.3
1.2
0.8
1.8
1.8
1.8
1.0
1.0
1.5
2.5
1.48
30
3.2

AVG

1.09
1.29
0.56
0.93
1.37
0.96
1.01
1.64
1.48
1.50
1.94
1.81
1.96
1.72
1.69
1.10
1.44
1.99
1.45
1.57
1.54
2.22
1.40
1,56
2.18
1.88
1.04
0.86
1.56
1.65
l.*3

2.22
NOV/68

N
(1)
12
12
12
11
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12

359


MAX
(2)
1.6
1.8
1.2
1.4
2.7
1.6
1.5
2.1
2.3
3.2
2.6
2.6
3.2
2.6
2.8
2.3
1.9
2.8
1.7
2.1
2.0
3.8
2.0
2.3
3.7
3.5
1.4
1.7
2.3
2.5


3.8
(1)  N«NUMBER OF VALID 2-HR SPOTS
(2)  MAX«MAXIMUM 2-HR COM  (DV)
(3)  N«DAYS WITH VALID VALUES
 *  MAX»MAXIMUM 2-HR COM  (MO)
VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE

-------
                                                      Table 4-12
                                          CONTINUOUS AIR MONITORING PROGRAM
                                            AISI SPOT  (COH/1000 LIN.FT.)
                                                                                             TABULATED  09/17/69
DAY
OF
MONTH

01
02
CM
U3
04
05
06
07
on
09
10
11
12
13
14
15
1A
17
in
19
20
21
22
23
24
25
26
27
28
29
30
31
AVG
N(3)
MAX*
TIME (STARTING HOUR)

0000

2.3
1.3
21
.4
1.0
2.2
1.1
1.3
1.3
4.7
1.0
2.1
1.2
1.0
1.3
1.7
1.6
3.2
2.4
0.8
1.4
1.6
0.7
0.9
1.3
1.6
1.9
1.7
1.1
0.7
2.0
1.1
1.60
31
4.7

0200

1.8
ils
21
.1
1.1
0.8
1.5
0.8
1.4
4.8
1.0
1.2
0.4
0.3
1.3
1.5
1.5
3l2
1.8
1.2
1.*
1.1
0.6
1.0
1.5
1.5
1.2
i!z
0.8
0.6
1.0
1.0
1.35
31
/ A
4.8

'0400

1.0
1.6
2«
.3
1.5
1.4
1.2
2.9
1.5
4.6
1.4
1.1
1.1
0.8
1.8
1.7
2.0
3.7
1.1
1.6
1.3
1.5
0.3
1.3
1.2
2.1
1.3
1.7
1.4
1.5
1.2
1.3
1.62
31
4.6

0600

0.9
1.9
4 4.
', 6
2.3
1.4
2.2
2.0
2.1
6.4
1.6
1.9
1.4
1.1
1.9
<.6
3.6
4.4
1.8
1.7
2.1
1.9
0.6
1.7
1.8
<.4
1.2
1.8
0.9
1.7
1.7
1.6
2.07
31
6 A
• *»

0800

0.4
2.4
3n
.9
2.*
1.7
2.0
2.9
2.1
4.4
2.1
z.o
1.3
0.9
2.2
l.P
2.9
J.z
l.R
1.7
1.9
2.7
0.4
1.9
2.0
2.7
1.7
2.2
1.4
1.4
1.0
Z.I
Z.03
31
/. A.
*».4

1000

0.3
2.0
2-5
.2
1.3
2.0
2.2
2.3
1.6
1.9
2.2
2.1
1.4
1.4
1.5
0.7
2.5
1.8
2.8
1.2
2.0
3.5
1.7
1.5
1.8
3.0
2.3
3.0
1.7
1.4
1.2
1.2
1.86
31
3E
• 5

1200

0.9
2.0
IT
. 7
0.9
2.5
1.8
2.1
1.8
1.2
2.2
2.1
0.8
1.0
1.8
2.0
1.9
2.4
1.4
1.4
1.7
1.6
2.3
1.4
1.9
1.5
2.1
2.9
1.8
l.Z
1.1
1.7
1.71
31
2Q
«*
CHICAGO ILLINOIS

1400

1.2
2.7
It
.6
1.7
2.6
1.7
1.5
1.0
2.0
1.0
1.8
1.6
1.4
1.6
2.4
2.1
1.9
1.5
1.6
1.8
1.6
1.1
1.5
1.7
0.3
2.3
3.4
1.6
2.0
2.2
1.3
1.73
31
3 A
. t

1600

0.7
2.2
1-m
.7
1.5
1.7
1.3
1.5
2.1
1.5
0.9
1.7
1.7
1.9
1.8
2.3
2.6
1.4
1.5
1.?
2.2
0.9
1.0
1.9
1.8
1.2
2.0
3.3
1.4
1.6
2.6
1.4
1.69
31
3*
. 3

1800

0.8
2.5
1O
.8
1.4
1.8
2.6
1.8
2.1
1.6
2.6
1.3
0.9
1.4
0.9
2,7
3.0
1.9
1.5
1.1
1.7
1.0
0.7
1.4
2.0
4.0
1.9
3.1
0.8
2.6
1.1
1.1
1.77
31
A A
4.0

2000

0.6
2.3
15
.2
1.2
1.3
2.0
1.7
2.3
1.3
2.1
1.2
1.1
1.4
1.2
l.B
3.2
1.6
1.0
1.3
1.5
1.5
0.8
1.7
2.0
1.9
l.B
2.1
1.4
1.3
1.4
0.8
1.54
31
« 5
3 . t

2200

2.2
2.6
i /
1.4
1.5
0.8
2.3
1.5
3.8
1.0
2.6
0.9
0.8
1.2
1.8
2.0
3.8
2.1
1.2
1.7
1.6
1.2
0.4
1.2
1.6
2.1
1.8
1.6
1.3
2.0
1.2
1.6
1.70
31
3D
. O

AVG

1.14
2.12
20 1
.21
1.56
1.72
1.87
1.89
1.96
2.99
1.75
1.67
l.lfi
1.19
1.64
1.90
2.61
2.61
1.69
1.42
1.76
1.72
0.93
1.50
1.74
2.06
1.83
2.3fi
1.32
1.54
1.52
1.39
1.72
2OQ
• ""
DEC/68

N
(1)
12
12
• ^
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
1Z
12
12
12
12
12
12

372


MAX
(2)
2.3
2.7
3.9
2.8
2.6
2.6
2.9
3.8
6.*
2.6
2.1
1.7
1.9
2.2
2.7
3.8
4.4
2.8
1.7
2.2
3.5
2.3
1.9
2.0
4.0
2.3
3.4
1.8
2.6
2.6
2.1

64
* *T
O
CO
(1)  NsNUMRER OF VALID 2-HR SPOTS
J2)  MAX'MAXIMUM 2-HR COW  «DV)
(3)  NsDAYS WITH VALID VALUES
 «  MAX=MAXIMUM 2-HR COM  
-------