1968  DATA  TABULATIONS
    AND  SUMMARIES
     DENVER
U. S. DEPARTMENT OF HEALTH, EMOTION, AND WELFARE
Public Health Service
Consumer Protection and Environmttitol Health Service

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         1968 DATA TABULATIONS AND SUMMARIES

        CONTINUOUS AIR MONITORING PROJECTS

         NATIONAL AIR SURVEILLANCE NETWORKS

                        DENVER
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 suppl ies 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 69-17
---~- ---~~~--.- - --
. .
- - - --- -. --------~--- -
----_._-~-~-~
- - - ----- - --~--
jj.

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PREFACE
One of the Continuous Air Monitoring Projects of the National Air Surveillance Net-
works 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, nitrogendioxide, sulfur dioxide, total hydrocarbons, and

. .
total oxidants),' cmd 2-hour measurements otsoiling 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 Chicago, Cincinnati, Philadelphia, St. louis, and
Washington, D. C. are available from the National Air Pollution Control Administration.
Similar data summaries have been publ ished, along with various analyses and interpretative
material, for previous years' operations.
""" -,
iii

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CONTE NTS
SECTION 1. SUMMARIES OF MONTHLY MEANS AND MAXIMUMS AND
FREQUENCY DISTRIBUTIONS OF POLLUTANT CONCENTRATIONS. . . . . .
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'Me'an 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. DENVER 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
SEcnON 4. SOILING INDEX DATA TABLES. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Table 4-1. January 1968, 2-hour Average Soil ing 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
v

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

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TABLE 1-1 . SU~~ARY OF MONT~lY M~ANS AND ~AXIMUMS FOR CARBON MO~OXIDE
.
DENVER          1968 
 DAyS ~O.  "1AX.   '1AX.    MAX. 
~ONTH VALIn. AvG. 24 4R. CO"'C. 4RlY. AVG. CO~C. 5 MIN. INST. CO"l(.
 DATA CaNC. eONC. DAy CONe. DAY ~P. CONCa DAy TI~E
   (PP!~) (PP(.1)  (PpM)   (PPM)  
JAN. 16   A 15. 30 40. 30 18 64. 4 1640
FEB. 1t'1  ';.9 to. 7 30. 7 21 38. 20 825
MARCH 20  4.0 8. 22 18. 7 7 28. 7 745
APRIL 30  4.4 7. 5 15. 18 16 32. 24 740
~~Ay 31  4.5 7. 24 15. 8 7 21. 2 650
JUNE 28  4.A 8. 12 18. 7 15 27. 7 1455
JULV 16   A 5. 15 22. 15 7 27. 15 725
AUG. 24  4.3 7. 26 1". 19 6 26. 19 655
SEPT. 26  5.1 d. 23 23. 23 19 40. 20 640
OCT. 25  5.q 10. 25 2q. 24 19 55. 10 640
NOV. 30  6.2 21. 20 7Q. 20 17 90. 20 1730
DEC. 28  7.3 17. 10 52. 23 17 76. 23 1710
YEA~ 293  5.4 21.  7Q.   qO.  
TABLE 1-2 :  SUM~ARY OF MONT~lY MEANS AND ~AXIMUMS FOR N ITR I C OXIDE
DEN\lER           1968  
 DAYS MO.   MAX.  '-1 A X .    MAX.  
Mn',ITH vALID AVG.  24 4R. CO"'C. HRLY. AVG. CONCa 5 MIN. INST. CONCa
 DATA cor'",. CO"JC. DAy CONCa DAY MR. CONCa DAY TI\1E
  (PPM) (PPM)  (PP\1)   (PPM)   
JAN. 26 0.072 0.21. 15 0.61 15 23 0.68 16  0
FEB. 21 0.041 0.11 7 0.40 7 21 0.41 7 2110
MARCH 24 O.OIQ 0.04 16* 0.23 6 7 0.30 6 715
APRIL 27 0.020 0.04 5 0.14 8 1 0.20 8 800
MAY 31 0.014 0.04 16 0.11 8 6 0.15 1  5
JUNE 8   A  0.02 11 0.07 11 1 0.12 5 855
JUlV 15   A  0.02 3 0.09 8 6 0.11 8 650
AUG. 7   A  0.03 20 0.14 19 6 0.19 22 535
SE!'T. 21 0.024 0.09 23 0.22 24 1 0.29 24 100
OCT. 30 0.046 O.OQ 28 0.34 22 1 0.41 22 710
NOV. 26 0.055 0.10 15 0.41 25 8 0.50 25 805
DEC. 2q 0.06~ 0 . 1.9 14* 0.50 26 8 0.68 26 810
YEAR 265 0.037 0.21  0.61   0.68   
   A  : AVERAG~ NOT C~LCULATED BECAUSE OF INSUFFICIENT DATA 
   *  : T"JUICATES SATUQDAY       
   Ii  I INUICATE5 SU~D~Y        
              3 

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TABLE 1-3 t !U~MARY OF MONTHLY MEANS AND MAXIMUMS FOR NITROGEN DIOXIDE
DENVER         1968 
 DAY! MO. MAX.   "'lAX.    MAX. 
MONTH VALID AVG. 24 HR. CONC. HRLY. AVG. CONC. 5 MIN. IN5T. CONe.
 DATA CONC. CONC. DAv CONC. DAV HR. CO~C. DAY TIME
   (PPM) (PPM)  (PPM)   (PPM)  
JAN. 30  0.052 0.12 10 0.25 13* 16 0.38 10 1240
FEe. l'  A 0.06 9 0.10 9 12 0.13 9 1200
MARCH 28  0.030 0.06 6 0.13 7 10 0.14 1 900
APR,Il 28  0.034 0.05 1 0.14 5 9 0.15 5 925
MAY 31  0.0~7 0.04 28 0.09 28 8 0.11 1 800
JUNE 29  0.029 0.04 3 0.10 , 8 0.14 5 815
JUl-Y 18  0.031 0.0' 30 0.12 15 8 0.18 15 800
AUG. 23  0.033 0.06 10* 0.12 2 8 0.15 30 74'
SEPT. 23  0.033 0.06 23 0.12 23 9 - 0.14 23 910
OCT. 30  0.038 0.01 25 0.18 25 11 0.19 25 1745
NOV. - 19  0.042 0.08 20 0.19 20 16 0.21 20 1600
DEC. 29  0.039 0.01 14* 0.27 10 10 0.31 10 1045
YEAR 303  0.036 0.12  0.21   0.38  
TABLE 1-4 I SUMMARY OF MONTHLV MEANS AND ~AXIMUMS FOR !ULFU~ DIOXIDE
DENVER         1968 
 DAYS MO. MAX.   "'lAX.    MAX. 
MONTH VALID AvG. 24 IofR. CONC. HRLV. AVG. CONC. 5 MI N'. IN5T. CONC.
 DATA CONC. CO"lC. DAY CONC. DAV HR. CO~C. DAY TI""£
   (PPM) (PPM)  (PPM)   (PPM)  
JAN. 16 A 0.04 13* 0.10 13* 12 0.15 . 19 130
FEB. 25  0.002 0.01 5 0.05 !5 9 0.12 27 125
MARCH 25  0.002 0.01 23* 0.08 23* 23 0.18 - 7 215
APRIL 9 A 0.01 6* 0.04 10 7 0.10 6* 255
MAY 12 A 0.02 28 0.05 31 6 0.11 28 2110
JUNE 15 A 0.02 2, 0.06 27 2 0.14 21 2"
JULY 17 0.001 0.01 16 0.01 10 5 0.16 16 310
AUG. 18  0.010 0.02 30 0.08 30 3 0.1' 20 "5
SEpT. 28  0.016 0.04 18 0.11 11 20 0.33 l' 2050
OCT. 25  0.022 0.04 10 0.20 9 23 0.50 9 2305
NOV. 26  0.027 0.05 4 n.24 4 3 1.81 29 1640
DEC. 30  0.010 0.04 10 0.14 151 4 0.22 16 U50
YEAR 246  0.013 0.05  0.24   1.81  
   A r AVERAGE NOr(~LC~LATED BECAUSE OF INSUFFICIEN! DATA
   * : INDICATES SATURDAY      
   ,. I INDICATES SU~DAY       
4            

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TABLE 1-5 ' SU~~ARV OF M~NTHLV MEANS AND MAXIMUMS FOR HYDROCARBON
.
!)ENVER          1968 
 DAVS MO. MAX.  MAX.    MAX. 
Mor.JTH vALID AVG. 24 YR. CONC. HRLY. AVG. CONC. 5 MIN. INST. CONC.
 DATA CONC. COI\JC. DAy CONC. DAv HQ. CONC. DAV TI \1E
  (PPM) (PPM)  (PP"1)   (PPM)  
JAN. 26  4.16 f:I.4 10 14.4 16 19 18.3 16 1950
FEB. 23  3.74 5.1 7 12.0 7 21 18.4 6 810
~A~CH 29  2.90 4.l 16* 7.3 6 7 12.1 16* 820
APRIL 20  2.39 3.5 5 5.4 6* 3 13.3 6* 345
MAY 30  2.08 3.0 29 4.5 8 7 10.2 28 145
JUNE 25  2.47 3.5 29* 5.9 29* 1 13.5 28 1120
JULY 6  A 3.3 2 6.6 20* 11 7.9 20* 1125
AUG. 25  2.47 3.l 12 6.5 30 7 11.8 13 2155
SEPT. 29  2.40 3.4 30 7.2 23 19 18.5 20 635
OCT. 29  2.99 4.3 10 9.4 12* 20 18.7 17 1800
NOV. 30  3.06 6.1 20 17.3 20 17 18.4 20 1720
DEC. 18  3.37 6.4 24 13.0 16 8 18.4 24 1905
VEAR 290  2.89 6.4  17.3   18.7  
TA8LE 1-6 :  5U~\1ARV OF MONT~LV MEAMS AND \1AXIMUMS FOR TOTAL OXIDANT
DENVER           1968  
 DAVS MO.   MAX.   '1A X.    MAX.  
MO"!TH VALID AVG.  24 HR. CO"!C. HRLY. AVG. CONC. 5 MIN. INST. CONC.
 (JAT" (ONC. CO~JC. DAy CONC. DAV HR. CONC. DAy T r \1E
  (PPM) (PPM)  (PPM)   (PPM)   
JAN. 19 O.Ol7 0.03 16 0.09 16 20 0.12 15 2340
FEB. 14   A  0.03 1111 0.07 7 12 0.09 21 1250
MARCH 14   A  0.05 311 0.09 30* 9 0.12 30* 920
APQIL 26 0.040 0.06 7# n.15 1 11 0.20 1 1145
MAY 25 0.038 0.05 5# 0.14 5M 10 0.21 5# 1025
JUNE 4   A  0.07 11 0.11 11 11 0.13 1* 1020
JULY 1f,   A  0.08 10 0.23 10 9 0.38 10 935
AUG. 7   A  0.05 21 0.08 21 11 0.11 21 1125
SEPT. 18 0.031 0.04 10 0.13 10 11 0.17 23 955
OCT. 22 0.034 0.07 25 0.26 25 14 0.43 25 1425
"JOV. 24 0.019 0.03 25 0.11 31 11 0.15 3M 1140
DEC. 29 0.016 0.04 24 0.12 24 13 0.15 14* 1155
YEAR 218 0.030 0.08  0.26   0.43   
   A  t ~VERAGE NOT C~LCULATED BECAUSE OF INSUFFICIENT DATA
   *  . T~~ICATES SATUQDAY       
    .       
   !J  t T~uICATE5 SU~DAY        
              5

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Table 1-7. FREQUENCY DISTRIBUTION OF CONCENTRATION OF GASEOUS ATMOSPHERIC POLLUTANTS  
   (So-minute values, concentroti.on in parts per million)          
 Valid       Fre~ency distribution, percent       
 data,                     Arithmetic
Ci ty /po11utant %  Mini= 10  30  50 70 90  95  95 99  MaxiUDJID mean
CHICAGO                       
CARBON M:>IDXIDE 65  0  1  3  5  7  13  16  20  24  57  6.2
NITRIC .OXIDE 79  .00  .01  .03  .06  .09  .15  .18  .23  .28 .66  .071
NITROGEN DIOXIDE 78  .00  .03  .04  .05  .05  .07  .08  .10  .11  .29  .048
SUlFUR DIOXIDE 80  .00  .01  .04  .08  .14  .28  .36  .48  .57 1.33  .117
HYDROCARBON 75  .0  1.9  2.3  2.7  3.2  4.1  4.7  5.6 6.6 17.3  2.90
roTAL OXIDANT 55  .00  .00  .01  .02  .03  .05  .07  .09  .10  .47  .023
CU«:INNATI                     
CARBON M:>NOXIDE 57  0  3  4  5  6  9  11  15  31  45  5.6
NITRIC OXIDE 34  .00  .00  .01  .03  .06  .18  .27  .38  .46 1.26  .064
NITROGEN DIOXIDE 73  .00  .02  .02  .03  .04  .05  .06  .07  .08 1.19  .031
SUU'IJR DIOXIDE 76  .00  .00  .00  .01  .02  .04  .06  .08  .10 1.49  .017
HYDROCARBON 81  .5  1.7  2.0  2.2  2.6  4.0  5.1  6.5 7.4 18.1  2.58
roTAL OXIDANr 26  .00  .00  .01  .02  .03  .05  .06  .08  .10  .19  .022
DENVER                      
CARBON M:>IDXIDE 71  0  1  3  4  6  11  14  19  24  90  5.3 
NITRIC OXIDE 62  .00  .00  .01  .02  .04  .10  .14  .21  .26  .68  .036 
NITROGEN DIOXIDE 71  .00  .01  .02  .03  .04  .06  .07  .09  .11  .38  .036 
SUI.FUR DIOXIDE 60  .00  .00  .00  .01  .02  .03  .04  .06  .08 1.81  .012 
HYDROCARBON 71  .0  1.7  2.1  2.5 3.1  4.4  5.4  7.0 8.5 18.7  2.89 
roTAL OXIDANT 48  .00  .00  .01  .03  .04  .06  .07  .09  .11  .43  .029 
PHILADELPHIA                      
CARBON M:>NIXIDE 48  0  3  6  8  10  15  18  22  25  49  8.5 
NITRIC OXIDE 70  .00  .00  .02  .03  .05  .12  .18  .28  .41 1.68  .054 
NITROGEN DIOXIDE 77  .00  .02  .03 :.,~. .03  .04  .07  .08  .10  .12  .22  .039 
SUlFUR DIOXIDE 89  .00  .01  .03  .05  .08  .19  .28  .40  .48 1.10  .080 
HYDROCARBON 60  .0  1.3  1.6  1.9 2.3  3.3  4.1  5.1 5.9 13.3  2.14 
roTAL OXIDANT 42  .00  .00  .01  .02  .03  .05  .06  .08  .10  .31  .022 
ST. LOUIS                        
CARBON M:>NJXIDE 86  0  2  3  4  .0G  8  10  13  16  47  4.6 
NITRIC OXIDE 66  .00  .00  .01  .02   .08  .11  .16  .20  .44  .032 
NITROGEN DIOXIDE 81  .00  .01  .02  .02  .03  .04  .05  .06  .07  .20  .023 
SUI.FUR DIOXIDE 90  .00  .00  .00  .01  .03  .07  .11  .18 .23 1.33  .028 
HYDROCARBON 89  .4  2.0  2.6  3.1 3.7  5.0  6.0  8.0 9.4 17.1  3.40 
roTAL OXIDANT 48  .00  .00  .01  .02  .03  .04  .05  .07  .08  .37  .022 
WASHIWroN D.C.                        
CARBON M:>OOXIDE 82  0  1  2  3  4  6  8  11  14  59  3.3 
NITRIC OXIDE 71  .00  .00  .01  .01  .03  .08  .13  .23  .33  .16  .035 
NITROGEN DIOXIDE 64  .00  .02  .03  .04  .05  .08  .09  .11  .12  .26  .047 
SUlFUR DIOXIDE 74  .00  .00  .00  .02  .05  .10  .13  .17  .20  .47  .036 
HYDROCARBON 82  .0  1.6  1.8  2.0 2.3  3.0  3.6  4.9 6.0 18.6  2.23 
roTAL OXIDANT 59  .00  .00  .01  .02  .03  .06  .oe  .10  .12  .29  .027 
Table 1-8. FREQUENCY DISTRIBUTION OF SOILING INDEX          
(2-hour measurements, concentration in COHS/IOOO lineal feet)          
     ICONCENTPATION IN COHS/I000 LIN. FT.)       
 VALID      FREQUENCY DISTRIBUTIDN.PERCENT     AR ITH
CITY DATA-  "'IN  10  30  '50  70  90  95  q8  q9  MAX MEAN
CHICAGO  100  .0  .5  ..9  1.2  1.6  2.3  2.8  3.6  It. 1   8.2 1.35
CINCINNATI  95  .0  .2  .,  .7  1.0  1.7  2.2  2.8  3.3  5~6  .87
PHILADELPHIA  100  .0  .3  .6  .8  1.1  1.8  2.2  2.9.  3.6  ".6  .9'
WASHINGTON. D C  CJO  .0  .It  .6  .9  1.2  2.0  2.5  3.1  3.6  6.6 1.06
5T LOUrS  80  .0  .2  .to  .6  .8  1.1t  1.8  2.3  2.7  to.7  ..,3
DENVER - -  75 - -.0  .2  ~ .6  .9  1.7  2.2  2.9  3.3 6.8  .80
 . MEPORTED TO "IEAREST FIVE PF.RCENT            
 VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE       
6                        

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SECTION 2.
DENVER SEASONAL
DIURNAL PATTERNS
7 '

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DENVER 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 I ine for summer, short-dashed I ine for autumn, mixed-dashed I ine 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 I ines indicate portions of the curve for which insufficient data are available to pro-
vide 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, 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.
9

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. SPRING:
SUMMER: - - - - -. FALL:._........~....
WINTER: ~_..-~.-
24
FIGURE 1. SEASONAL DIURNAL PATTERNS OF CARBON MONOXIDE CONCENTRATIONS
t\
.-. I .
: 8\ \
: ,-... 8\
. . .
i I \.
: . ~ \
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24
---
5
21
FIGURE 2. SEASONAL DIURNAL PATTERNS OF NITRIC OXIDE CONCENTRATIONS
r .
10

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I . \,,""" \ '''''. ." "
I r\'" ," ,." ,
I '. .
....., .. ......
.. '- I 4tf '" ... ............."...... ..
"' ~.. ." ..
", ..J.. '..- , ". ........- a..
., .. .... ".: \ e.. :" ......
.. - .. --' I .. \ 8. : ...
I .. ". .. " ~ -a.
o' \ -... .. ,. / , -...
. (." ......... ......, \ '- .::.....
.. .4~ -.......- ,
3 "" .,oJ ,
o ,. 0 "" .' i
""" ..., ,,, I
..........., ~ ,
C.07
C,.OG
L
IT: C, 05
6 0 ,. OLJ
H
~

-------
5.00
4.50
2:
D-
D- 4, 00

z
o
H
~ 3.50
-<
Ct:
~
Z
[j '3, 00
z
o
LJ
SPRING:
SUMMER:- - - --.
FALL: ..................
WINTER: .-.-.-.-
;'. ;
i \ i
; \. ;
j- '. ;
; '. ;
i '. ;

~...... \ ..

... I ". ' I
, - , \ .

". ',' \"' .'
\ ;,\ \' ~
. l~ \ ~ , . .. ."" ., ......
\ 1:1 \ \ ..... .. - .. ..",. ..............: ....
, ,. "
, /.. .. \ ~ ... ....
, . J ~ : ...
'.. . / \ ... .....
" , ..... : ..
.. Ii .... 0. . ......

I: " I \ '.
.... ,
II ..... I .
.. ~ "
/..: -..... 
-------
SECTION 3.
GASEOUS POLLUTANT
DATA TABLES
13

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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
val id data hours, it ii 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 variati on, 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 val idity 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 DAI L Y 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 vali~ 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 s.ome basis for
iudgi~g 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

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DAY       A.M.           P.M.      DAILY NO. 5.MIN.
OF                          MEAN OF MAX.
MONTH  12-1 1-2 2-3 3-4 4-5 5-6 6.7 7-8 8-9 ~.10 10-11 11.12 12.1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8.9 9-10 10-11 11-12 HRS.
1    15 13 12 11 11 13 13 13 12 13 12 12. 12 13 14 18 16 19 21 23 16 12 14.1 2. 29
2                
3                            
4 i 6 " 6 6 6 ., 16 14 10 11 16 11 14 16 11 33 13 11 10 15 18 15 11 12." 2 64
5   IS 7 7 ., 8 11     11 9 8 6 7 14 17 9 8 ., 6 6 6 8.3 11 20
I                          
6*                           
.,* I                           
8                            
9   8 " 7 ., 7 10 II'! 14 13 13 11 12 11 11 15 23 24 20 20 14 12 14 16 13.2 -2 31
10                            
11                            
12                            
13*                           
14*                           
15                            
16                            
11                            
18                            
19         61                   
20*  2 2 5 5 6 6 6 6 6 6 5 5         6 5 5.1 1~ 6
  ~I      - - .-- 1---'                 2~ 
21* 4 3 2 2 1 Z 3 3 2 3 3 3 5 5 6 8 10 14 16 10 11 9 11 6.2 25
22  5 5 3 1 2 4 q 11 8 13 12 9 9 11 9 14 12 7 4 3 4 3 2 6.9 2~ 17
23  3 1 1 1 2 10 9    7 9 9 11 13 15 30 23 13 8 6 6 4 8.8 2' 51
24 I 4 4 5 3 2 3 4 1Z 8 8 9 ., 8 8 8 12 15 31 17 9 9 9 8 5 8.6 2 44
25  5 3 3 3 3 4 6 15 14 10 ., 9 8 6 ., 6 10 9 6 5 4 3 4 3 6.3 2c 21
26 I 4 2 2 1 2 2 4 11 9 10 6 ., 6 7 8 9 13 10 6 5 4 5 3 4 5.8 24 22
27* 4 3 3 3 2 '3 4 4 6 8 9 10 7 6 5 ., 6 6 ., 5 8 8 8 11 5.9 2c 14
28* 12 8 10 9 8 4 5 9 ., 6 6 3 3 3 4 3 6 7 9 8 ., 5 4 3 6.1 24 15
29 I 3 2 2 1 1 3 8 22 21 10 8 9 7 8 8 8 14 14 10 10 6 6 12 7 8.3 24 29
30  10 11 10 8 6 ., 13 28 34   11 6 8 10 11 23 39 40 17 20 9 4 3 14.8 2. 54
,                   
31  3 3 2 2 3 4 6 29 22 10 ., ., 6 6 8 8 12 10 6 4 3 4 ,. 3 7.1 2~ 51
,   5 4 4 4 .,     9 8 8         8 7 8.6  
MEAN                 
NO.  11 15 16 16 16 16 16 15 14 13 13 16 16 16 15 15 15 15 15 15 15 15 16 16  36' 
MAX.  12 11 15 13 12 11 13 29 34 13 13 16 1" 14 16 17 33 39 40 20 21 23 16 16 14.8  64
Table 3-1
CONTlNUO,US AIR MONITORING PROGRAM
.....
a')
Air Quality S~ction, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Depart'i1ent 01 Health, Education, and Wellare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Tatt Sanitary [ngineering Center
Cincinnati. Dhio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
* Indicates Saturday or Sunday
LOCal standard time used
TABULATED
DENVER.COLO.
CARBON MONOXIDE
JAN. 1968
WED.. SEP. 10. 1969
r
,., a,

-------
-r .' ~
CONTINUOUS AIR MONITORING PROGRAM
Table 3-2
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Dhio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
DFNVER.COLO.
CARBON MONOXIDE
FEB. 1968
.....
-.J
DAY       A.M.           P.M.      DAII..Y NO. S.MIN.
OF                         MEAN OF MAX,
MONTH 12.1 1.2 2-3 3.4 4-5 5-6 6-7 7.8 8.9 9-10 10-11 11-12 12-1 1-2 2-3 3.4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11.12 HRS,
~ 3  3 2 2 2 4 9 8 3 4 4 3 5 5 1 10 1 4 ,. 4 6 1 5 4.7 2 ~:
3 2 2 2 2 2 4 1 8 8 8   15 16 11 19 16 4 4 3 4 6 5 6.9 2
3* 12 9 11 9 3 3 8 13 8 1 11 10 11 6 5 4 4  6 8 1 7 5 3 7.3 2 21
4* It 5 1 1 0 1 1 1 1 2 2 2 2 2 3 3 2 5 8 8 13 11 8 3 3.6 2/ 18
5                           
  --      .- ---                 
6         6 2 2 2 3 3 3 5 9 11 4 3 3 5 5 3 4.3 U 18
7 6 2 2 3 1 2 9 21 18 1 6 1 1 6 6 8 13 16 1 16 24 30 21 11 10.(, 2/ 36
8                           
9                          . 
10*  4 4 2 2 2 3 1 8 8 1 1 7 6 6 5 5 1 10 16 23 20 6 6 1.4 2 33
11* 8 6 5 3 2 2 3 3 3 3 4 3 3 3 4 5 4 5 5 6 6 4 2 1 3.8 2/ 10
12 2 1 2 1 1 2 4  9 6 6 6 4 5 6 6 11 8 5 3 3 3 2 2 4.2 2 11
13 ~I 2 2 1 1 2 6 10 9   5 4 6 5 6 12 10 5 5 5 5 6 5 5.2 .2. 19
14 5 4 2 2 2 6 14 10 6 1 6 6 1 8 1 12 10 5 5 4 3 3 5 5.9 2/ 19
15 6' 5 4 4 3 2 5 12  10 10 8 6 1 1 1 9 12 9 11 9 9 1 6 1.2 2 11
 I                        -  
16 41 3 3 2 2 2 5 11 15 11 1 5 6 6 5 6 12 13 5 5 4 6 6 2 6.0 2 23
17* ~I 2 2 2 2 2 ~ 6 6 ,. 5 5 4 3 5 4 4 8 8 6 6 8 8 5 4.5 2 15
18* 6 8 8 5 5 5 1 8 8 5 5 3 3 3 2 3 3 3 3 8 16 6 6 5.5 2/ 22
19 1 0 0 1 1 3 10 I 17    3 3 2 2 6 2 1 1 1 1 1 2 300 l 24
lO 5 3 3 1 l 3 5 18 28 10 6 6 6 6 4 6 9 8 4 l 2 2 3 3 5.9 2/ 3A
       -~-- --- -                  
l1 3 2 2 2 2 3 8 19 22 12 10 1 8 12 11 11 21 16 9 8 6 6 7 6 8.9 2/ 31
22 5 3 2 2 2 2 3 10 12 11 5 5 5 5 5 5 8 10 6 8 10 7 5 4 5.9 l/ 17
23        +                  
24*                         
25*                         
       1-                  
26                         
27                         
28                         
29                           
MEAN 5 4 3 3 2 2 5 10 11 7 6 5 5 6 6 6 9 9 6 6 1 8 6 4 5.9  
NO. 1-1 11 18 18 18 18 18 11 1" 11 17 11 18 19 19 19 19 18 19 19 19 19 19 19  43f 
MAX. 12 9 11 9 5 5 9 21 28 12 11 10 11 15 16 11 21 16 10 16 24 30 21 11 10.4  38
o Indicates Saturday or Sunday
local standard time used
TABULATED
WEO.. SEpt 10. 1969
r

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Table 3-3
CONTINUOUS AIR MONITORING PROGRAM
~
00
Air Quality Sec~ion, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. DepartmJnt 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIO~S
Robert A. Taft Sanitary Engineering Center
I
Cincinnati, Dh(o 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
DENVER.COLO.
CAR80~ MONOXIDE
"'ARC", 1968
DAY  I       A.M.           P.M.       DAILY NO. S-MIN.
OF                        9.10 10-11 11-12 MEAN OF MAX.
MONTH  112-1  1-2 2-3 3-4 4-5 5-6 6.7 7-8 8-9 q-IQ 10.11 11-12 12-1 1-2 2-3 3-4 4.5 5-6 6-7 7-8 8.9 HR$.
1                             
2*                             
3*                             
4                             
5 I                           
6                             
7 I   0 0 0 1 2 7 18  10 13 7 6  6 7 2 5 7 4 2 0 1 1 4.7 2' 211
8  0  1 4 0 0 1 5     :3 3 4 5 6 11 5 2 2 2 1 1  2.8 1~ 16
9*'  I                         - 
10*   I                          
11 I                            
12    0 0 0 0 0 1 5 :3 It 4    4 6 14 12 4 4 5 5 5 5 4.0 2C 24
13 I 4  3 3 1 0 1 :3 12 11 9 7 7 7 4 5 6 8 10 16 14 11  5 7 6.7 .2 26
14 I 1  1 3 0 0 1 5      3 3 2 5 5 3 0 2 2 1 2 1 2.1 H 12
15  1  1 0 1 0 1 4 11 8 3 2 2 3 4 4 5 9 9 9      4.1 H 18
16*                             
17*    II 1 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0.6 2 15
18  0  0 0 0 0 2 4 12 9 3   3 4 3 3 4 3 2 3 2 1 1 1 2.8 2~ 20
19  1  1 1 1 1 1 3 9 I 9 1 4 3 4 4 4 4 7 6 2 i 1 1 1 0 3.0 2' 20
20  0  0 0 0 0 0 2 -~~!~ 5 4 2 4 4 5 6 9 7 4 2 3 2 1 1 3.3 2' 1T
       --                    
21  1  1 1 1 1 2 . 5      9 9 14 12 10 7 6 6 7 5 5.6 IE 24
22  6  5 5 5 5 6 7       8 9 9 7 9 11 10 10 7 7.5 H 16
23* ,  8  8 5 5 4 5 6 7 I 7 6 6 6 7 6 6 6 2 2 2 2 3 7 10 11 5.6 21 18
24*  12 I 9 B 6 It 2 3 5 5 It 4 4 4 4 4 2 4 1 3 2 0 3 5 2 4.1 2 15
25  0  1 0 0 1 1 2 131 9 5 2 4 4 5 7 6 10 7 7 6 5 9 8 II 4.9 2' 25
-          --                   
26                            22 
27     1 0 1 1 8 14 8 It 3 5 5 .. 3 5 8 It .. :3 2 3 6 2 4.3 18
28  1  0 0 0 0 1 1 9 9 3 4 1 2 4 7 6 7 6' 4 2 2 3 6 5 3.5 2" 1T
29  7  6 2 0 .. 5 7        7 8 12 11 7 7 8 8 8 6 6.5 1 1T
30*  6  4 3 1 1 2 2 6 7 6 5 5 4 5 4 5 7   3  0 0 0 3.6 21 10
31*  0  1 0 1 3 0 0 2 :3 It .. 3 4 4 6 5 6 3 0 1 2 2 .. .. 2.5 2" 7
MEAN  3  3 2 1 1 2 .. 9     '+  5 5 7 6 5 .. '+ 3 '+ .. 4.0  
NO,  16  19 20 20 20 20 20 16 14 15 14 14 16 15 19 20 20 19 19 19 18 18 19 18  428 
MAX.  12  9 8 6 5 6 II 18 11 10 13 7 7 6 9 9 14 12 16 14 11 10 10 11 7.5  28
CI In~icates Saturday or Sunday
local standard time used
TABULATED
WEO.. SEPt 10. 1969
I
AQII

-------
......
., '."
CONTINUOUS AIR MONITORING PROGRAM
Table 3-4
Air Quality Seclion, laborotory 01 Engineering and Physical Sciences
Division of Ai, Pollution, Public Health Service
U, S, Department 01 Health, Education, and Weltare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Cente,
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
DEr-IVER,COLO.
CARROr-l MO~O)(IOE
APRIL 1968
.....
~
DAY       A.M.           P.M.      DAIL" NO. S.~.IIN.
OF                       9.10 10-11 11.12 MEAN OF MAX,
MONTH 12-1  1.2 2.3 3.4 4.5 5.6 6-7 7-8 8-9 q.10 1().11 11.12 12-' 1-2 2.3 3.4 4.5 5.6 6.7 7.8 8.9 HRS,
1 1  0 0 0 1 1 8 13 13 lZ 10 3 1 1 1 3 11 6 6 5 3 6 3 0 4.4 2 18
2 0  ) 3 2 2 1 5     7 6 6 5 9 11 8 5 5 4 3 Z 3 4.5 2 22
3      2 2 ) " 7 It 4 ,. ,. , 6 6 10 1 4 3 3 3 3 2 4.5 2 14
4 2  4 2 2 2 2 4 10 6 5 5 '  7 6 1 11 10 6 5 4 4 5 4 5.0 2 18
5 4  4 4 3 3 3 ,      6 7 5 8 14 12 8 9 7 9 10 6 6.7 1 23
6. 5  5 6 8 4 3 3 4 3 4 4 4 6 5 4 5 5 3 3 3 3 2 3 3 4.0 2 12
7. 3  2 3 1 2 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1 2 2 2.0 2 5
8 ~I 3 3 2 3 , 7 11 7 4 4 6 4 5 5 6 9 9 6 5 5 6 6 3 5.2 24 24
9 2 2 2 1 2 3 5 6 It 4    6 5   5 5 4 5 4 4 3'.1 ' 11 9
10 4; 2 2' 2 1 3 3      4 5 5 6 10 7 4 6 6 4 8 8 4.1 1\ 15
  i                         
11 41 Z 2 1 1 2 3 9 8    4 5 4 6 11 9 6 , 6 6 3 5 4.9 2 25
12 51 5 3 1 0 1 3 5 7    5 4 5 4 5 6 5 4 2 4 5 4 4.0 2 9
13. 61 5 4 2 0 1 1 1 2 3 3 3 2 3 3 2 2 1 1 1 1 1 Z 1 2.0 ' 2« 9
14* 1. 1 1 0 0 0 0 1 Z 1 1 0 1 1 1 1 4 4 4 4 5 6 8 6 2.2 2« 10
15 4i 3 3 3 4 3 6 11 13 7 " 7 1 8 9 12 13 7 5 5 5 5 5 7 6.7 24 20
  I                          
16 51 4 5 5 5 5 9 14 9 6 7 7      6 5 4 3 Z 1 0 5.5 1\ 17
11 l' 0 0 0 1 3 6 14 1Z 7 8 5 6 8 8 9 12 11 4 3 4 3 2 2 5.4 2« 19
18 2! 1 1 0 1 2 4 T 6 8 8 9 8 9 9 9 15 11  5 5 4 4 3 5.8 2' 20
19 31 1 2 1 2 3 6 I    6 6 5 4 6 9 7 3 4 4 5 8 10 4.6 2C 17
to.  i 9 9' 0 0 0 21__~~ 4 4 4 4 4 4 4 5 4 4 6 7 6 6 5 4.3 2~ 16
21. 41 2 3 1 0 2 3 2 I 2 3 3 3 3 3 4 4 5 4 5 4 3 3 2 1 2.7 24 8
22 I! 0 0 0 1 1 4 9 I 10 9 6 7 6 6 6 .7 10 6 4 3 3 3 4 3 4.5 24 14
23 4: 3 3 2 1 2 3 131  5  4 5 5 5 5 8 7 5 , 6 5 5 4 4.4 ~~ 10
24 3; 2 2 2 1 2 5 14 11 9 T , 6 6 7 14 8 7 5 5 5 5 ,. 6.1 32
25 2  1 1 1 1 2 5 12 8 5 4 4 4 5 4 6 9 8 4 4 2 2 2 2 4.0 24 11
26 3  1 2 1 1 2 4 9 6   4 4 5 6 7 9 5 5 5 7 5 3 5 4.4 2. l'
27* 5  3 3 1 1 - 1 3 ~! 4 4 5 4 5 5 3 3 3 5 4 3 2 3 3 2 3.4 24 10
28* 31 3 3 2 ~I 3 2 1 1 2 3 3 3 3 4 3 3 3 5 , 6 3 1 2.9 24 9
29 1 I 1 1 1 5 14 11 6 5 5 5 5  5 6 6 3 4 6 7 5 1 2 4.6 2 22
30 1 j 1 0 0 1 ] 7 10 7 6 6 5 4 6 6 9 6 4 4 " 8 5 7 6 4.9 24 17
MEAN 3  2 2 2 2 2 4 R 6 5 5 5 4 5 5 6 8 6 4 5 4 4 4 4 4.4  
NO. ze  29 29 29 30 30 30 25 25 23 22 25 27 27 29 29 28 29 29 30 30 30 30 30  67 
MAX. 6  9 9 8 5 5 14 14 14 lZ 10 9 8 9 9 12 15 12 e 9 8 9 10 10 6.7  32
'* Indicates Saturday or Sunday
local standard time used
TA8ULATED
WE~., SEPt 10, 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Table3-:S
Air Quality Section. laboratory of Engineering and Physical Sciences
Division 0' Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
I\j
o
Robert~. Taft Sanitary Engineering Center
Cincinn~ti, Ohio 45226
CONCENTRATION IN PPM
INFRARED ~NALYSIS
D£NVE'hCOLO.
CARBON MONOXIDE
"lAY 1968
DAy      A,M.           P.M.      DAILY NO. S-MIN.
OF                   6.7  8.9 9.'0 10.11 11.12 MEAN OF MAX.
MONTH 12.1 1.2 2.3 3.4 4.5 5.6 6.7 7-8 8.9 9.10 10.11 11-12 12.1 1.2 2.3 3.4 4-5 5-6 7.8 HRS.
1 5 2 1 0 1 3 10 13 8 4 4, 4 4 5 6 6 6 3 4 6 5 4 4 2 4.4 2. 20
2 1 2 1 1 1 4 12 10   5 5 5 6 5 9 6 4 2 2 2 2 1 0 3.1 2 Z1
3 0 0 0 0 1 5 10 6 .. 5 4 4 4 5 6 8 6 3 3 3 4 3 3  3.8 2 16
4* 3 3 3 3 .. 2 3 .. 3 4 4 4 3 3 3 3 3 2 2 4 4 3 2 2 3..1 2. 8
5* 2 1 1 1 0 1 1 1 2 2 2 3 2 3 3 3 2 3 4 3 3 2 2 1 2.0 24 1
6, 1 1 1 1 2 3 1 6 6 7 8 5 5 5 5 9 6 3 3 l l 1 2 1 3,8 24 15
1 1 1 1 1 3 3      5 5 6 1 9 1 5 4 5 6 1 5 4 4.4 14 11
8 4 4 4 4 5 9 13 15 11 8 1 5 1 8 9 10 6 5 5 5 5 3 3 3 6.4 2. Z1
9 3 3 2 2 3 1 10 9 1 1 6 5 6 1 9 11 9 5 3 3 3 2 3 .. 5~3 -2. 11
10 3 Z 2 2 3 6 ,12   1  6 6 6 5 9 8 3 4 4 4 3 3 3 4.1 2 18
11* 3 3 2 2 2 3 3 3 4 .. 4 4 4 5 .. 5 4 3 4 5 4 4 4 .. 3.6 Z4 9
12* 3 3 2 3 4 3 3 2 3 3 3 4 5 4 .. 4 6 4 5 6 1 8 6 1 4.0 24 12
13 2 1 1 1 3 10 12  6 6 6 6 5 1 6 5 4 2 l 2 3 3 2 3 4.2 2 ,18
14: 3 3 3 4 4 1   4 6 6 1 1 8 1 1 6 3 3 4 5 4 3 2 4.8 2 11
151 2 2 2 3 2 5 1'0 ~ 5 6 5 6 6 6 8 10 1 5 4 3 2 3 2 3 4.6 Z. 16
16 2 2 2 1 2 4   5 5 6 1 8 1 9 12 10 6 5 5 4 5 4 3 5.1 2 15
17 2 3 2 2 2 4 8 9 II 1 6 7 7 8 7 11 8 5 5 3 4 5 4 4 5.5 2. 14
18* 3 3 2 2 2 3 3 5 6 6 5 5 5 4 5 5 5 5 4 5 5 5 4 4 4.1 2. 10
19* 5 6 4 3 4 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3.1 2. 9
20 2 2 2 3 3 5 13 12 9      5 10 9 5 4 5 5 5 4 3 5.5 Ie 11
      -- --- f---                   
Z1 2 4 2 2 3 4 7 7 1 1 6 6, 6 6 6 9 7 4 5 5 5 4 2 2 4.8 2. 13
22 1 1 1 1 2 5 10 II II 6 '5 5 6 7 7 9 6 4 3 3 3 2 2 2 4.5 2. 14
23; 1 2 1 1 1 3    5 6 7 6 6 7 9 1 3 3 3 3 3 2 2 3.9 2 12
24' 2 2 2 2 2 5 14 13 1'2 8 5 5 6 11 12 12 8 6 5 5 5 6 9 9 6.9 2. 2.1
25~ 6 6 3 2 6 7 1 5 .. 5 5 5 5 :5 4 5 4 3 3 3 3 4 4 4 4.4 2j 11)
       -I-                   
26* 3 2 2 1 1 2 2 2 2 3 '3 3 3 3 4 3 '3 3 5 5 6 4 3 l 2.9 2' ~r.l
27 1 1 2 2 3 1 9 8 7 5 6 6 6 "5 6 7 7 4 4 5 3 3 5 5 4.8 l' 1'3 '
28 4 2 2 2 3 5 11 11 10 6 6 5 5 5 6 8 6 4 4 5 5 .. 4 2 5.1 2' 1-9
29 2 1 1 2 4 5 9    '7 6 1 8 10 -9 ~9 6 .6 9 8 9 11 11 6.6 2 n:
30 1 '6 3 3 2 2 3 3 4 4 4 4 4 4 3 3 3 .4 " '4 3 '5 l 'l 3.6 lj .1'.11.
31, 2 2 2 1 2 5 12 9 7 1 '7 7 7 1 6 11 ,9 5 5 8 4 3 3 '3 5.5 l' 19 :
,                           
MEA~ 3 ! '2 2 '3 4 8 1 6 5 5 5 5 6 6 7 6 '4 4 4 4 4 4 3 4.5  
31 31 31 31 31 31 .21 24 26 21 211 30 30 30 31 31 31 31 31 31 31 31 31 30  71 
NO,   
MAX. 7 e 4 4 6 10 14 15 12 8 e 7 8 11 12 12 10 6 6 9 8 9 11 11 6.'9  21
* Indicates Saturday or Sunday
~ocal standard time used
TTA:BULATEO
. -
.WEO,." SEP. 10. 1'969
II
" a I

-------
.,. ~J.
CONTINUOUS AIR MONITORING PROGRAM
Tobie 3-6
Air Quality Section. laboralory of Engineering and Physical Sciences
Division of Air Pollulion. Public Heallh Se",ice
U. S. Department of Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
DENVER,COLO.
CARgON ~ONO)(IOE
JUNE 1968
('\j
.....
DAY          A,M.             P.M.      DAILY NO. 5.MIN,
OF                              MEAN OF MAX.
MONTH 12-1   '-2 2-3 3-4 4-5  5.6 6-7 7-8  8-9 ~.10  1()..11 11-12 12-' '-2 2-3 3-4 4.5 5.6 6-7 7-8 8.9 9.'0 10.11 11-12 HRS,
I: 2    2 2 ~  4 ., 4  5 1  1 6 6 6 6 5 5 4 5 6 6 6 7 5 4.9 ~, U
7   6 3 3  2 2 2  3 4  3 3 4 5 4 4 3 4 5 1 6 8 4 4 4.0
3 3   1 1 1 2  6 10 12  1    4 1 5 6 1 5 3 4 3 5 5 4 2 4.7 2. 18
4 1   2 0 0 1  8 10 II  7 6  6 5 6 7 5 6 5 3 5 5 5 4 3 2 4.6 2 15
5 0   1 0 2 2  6 11 13  8 5  6 5 6 6 1 9 5 4 5 5 5 7 4 1 5.4 2' 16
           .-                     
6 ~I  1 1 1 1  4 8      6 5 5 5 7 9 7 4 4 3 4 4 4 2 4.0 2 14
7  3 4 4 4  8 16 10  1 6  6 5 6 8 16 18 10 5 5 5 6 6 6 5 1.0 24 21
8. 31  3 2 2 4  4 4 3  3 3  ., 4 4 3 4 5 4 3 4 4 4 4 4 5 3.7 2j 7
9- 5:   2 1 2  2 3 2  2   3 3 3 3 4 4 3 3 2 4 4 2 2 3 2.8 -2. 8
10 1   1 1 1 2  6 12 14  6 6  6 5 4 6 7 10 8 6 3 3 3 3 3 5 5.1 24 21
  i                              
11 3:  4 2 3 3  6 14      6 6 7 8 7 9 9 5 5 8 9 6 9 9 6.6 ~~ 18
12 7'  4 :1 4 4  8 14 14  10 9  6 1 7 7 8  8 6 1 8 1 8 9 1 7.6 22
 I       
13 61 4 4 4  6 12 14  10 8  6 7 9 8 9 10 8 6 6 7 9 9 7 6 7.4 ' 2' 20
14 6:  ' 4, 4 5  7 14 10  9 7    4 7 7 8 8 4 4 4 2 2 2 2 5.6 2~ 19
15- 2; 2 1 1 1  2 2 2  2 2  3 3 3 4 3 4 3 2 2 2 4 4 4 1 2.4 2. 1
            I                    
16- I, ! 0 0 0  0 0 0 I 1 1  1 1 2 2 2 2 2 2 2 2 2 2 1 2 1.2 2' 5
17 OJ 0 0 0 3  ., 12 8 6     6 6 6 9 8 , 4 1 9 9 5 4 5.3' 2 18
18 3' 2 1 2 3      10 5  6 5 5 5 6   4 5 3 3 3 3 3 3.9 1 17
19 21 2 1 3    11! I I  6 6 6 6 11 8 6 1 6 5 5 4 2 5.1 1 16
20 2' 2 1 1 2  5   7 7 8 10 9 5 3 4 6 7 1 6 5.3 1( 13
 I     ii-.to  i            
21 1: 1 1 1 1  5 :1 6 6 6 6 7 9 7 5 4 4 5 4 4 4 5.0 2' 20
22- 3. 3 3 2 2  7 1 .,: 6  2 3 3 3' 2 3' 4 3' 2 3' 2 3 4 3.5 2 10
23. 3'   3 2 2 2  3 2 1 I 2 2 3 3 3 3 3' 3' 3 3 4 7 4 1 1 2.1 2. "
24 l' 1 1 1 2  2 3816 61 6 5 6 5 4 8 1 3' 1 1 1 2 1 1 3.6 2' 14
25 l' 2 1 1 21 4 1.   6 5 5 7 7 6    1   2 3.8 1 11
   I     i       I                 
26 oj 2 2 1  i 4 12114 I " " ' 6 ., 5 6 7 10 1  6 7 1 5 4 5 5.8 ~~ 17
27 4    1 1  5 11 10 I 9 6 6 5 7 6 8 9 7 4 6 7 11 9 9 5 6.6 2. 16
28   '  1     1 10   7 8 8 8 10    81   6  p 16
    1 1 I  8,  6 9   9   6.5
29-          i   i         - ,       
30-        I    i                 I   
          I                   
MEAN 3 i 2 2 2 2  5 9 "  6 6  5 5 5 5 6 8 6 4 4 5 ., 5 4 4 4.8 61~ 
NO. 21 124 28 28 25  25 26 I 21  22 20  21 25 28 28 28 26 21 25 26 21 28 26 26 28  
MAX. 7 6 4 4 .,  8 16 14  10 10  7 9 9 8 16 18 10 6 7 9 11 9 9 9 7.6  21
* Indicates Saturday or Sunday
local standard time used
TA8ULATED
WE~.. SEPt 10. 1969
r
t

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department 01 Health, Education, and Welfare
'N
t\j
Robert A. Tall Sanitary Engineering Center
Cincinnati, Dhio 45226
DAY
DF
MONTH
6-
7.
8
9
10

11
12
u-
14,11
15
16
17
18
19
20Q
21Q
22
23
24
25
26
27<1
28t!
29
30

31
MEAN
ND.
MAX.
12-1
1
2
3
4
5
4
I 0
o I 1
5 4
o I 1
2 I 3
1 0
3 I 3
~ I ~
1 i 0
2 I :9
1 !
!
o
o
14
5
*' Indicates Saturday or Sunday
Local standard time used
1.2
1
4
1
o
o
1
16
4
2.3
o
2
o
1
2
1
o
o
1
1
o
01
o
o
o
o
1
16
2
3.4
1
o
o
1
o
o
o
1
1
o
o
o
o
o
o
15
1
4.5
2
o
1
2
1
o
1
1
1
o
o
o
o
01
o
15
2
A.M.
5.6
2
4
5
5
2
o
5
3
5
1
2
o
o
1
14
5
Table 3-7
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
6-7
7-8
8-9 9-10 1()"11 11-12 12-1
q
4
3
,.
15
11
q
7
12
11
3
1
14
10
q
4
2
22
5
6
4
1
12
7
3
2
6
11 14
8 7
6

: ~-LI ~I_:~ :
. I
-+! I
.1 I

I
q 1 2
4
5
2
4
1
4
15
15
13
22
10
7
11
12
CONCENTRATION IN PPM
INFRARED ANALVSIS
4
4
7

3
2
6
5
2
1
11
'7
:3
3
6
3
1
5
5
5
3
4
3
o
2
13
6
3
8
2
2
2

5
4
5
4
2
o
5
12
8
1.2
8
3
4
8
6

2
2
5
4
4
6
1
o
3
14
8
2-3
5
5
5
2
1
2
5
6
8
3

o
4
12
8
3-4
10
3
8
6
'9
2
1
6
8
7
13
10
2

1
7
6
6
16
13
4-5
9
3
5

8
7
3
3
3
6
5
9
5
o
3
4
15
9
P.M.
5.6
6
2
4
4
2
2
1

3
4
7
3
1
o
1
1
15
7
6-7
4
:9
2
4
2
4
2
4
5
8
2
2
1
13
8
7-8
8-9 9-10 10-11 11-12
6
3
3
2
2
7
2
3
6
7
2
8
'1
3
14
8
8
2
4
1
4
3
9
4
3
7
5
4
2
1
1
15
q
4
3
6
1
4
5
8
5
1
3
5
3
1
o
o
15
8
TABULATED
4
2
8
2
2
3
3
2
3
3
3
1
o
13
8
DEWER,COLO.
CARBON MONOKIDE
JULV 1968
3
2

5
1
2
2
4
2
1
2
4
2
5
o
o
15
5
DAILY
MEAN
5.0
3.0
4.1
5.1
402
2.3
106
503
403
3.6'
3.9
402
2.4
1.1
2.0
1.5
5.3
NO.
DF
HRS,
S'''''UN.
MAX.
14
I!
13
6
.
2.

24
2C
'2
2
2
22

18
21
6
6
27
2
2
2C
2C
2
18
16
18
18
10

12
2!
22
H
1"1'
13
~


. c

a


.
33~
27
WED., SEPt 10, 1969
I
AO&:;~

-------
.., I.
CONTINUOUS AIR MONITORING PROGRAM
Table 3-8
Air Quality Section. laboratory 01 Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
D£NVE~.COLO.
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
INF~ARED ANALYSIS
CAR80N "10NOKIDE
AUG. 1968
[\j
""
DAY         A.M.             P.M.       DAILY NO. S'MIN,
OF           -_..                   OF 
MONTH 12-1  1.2 2.3  3.4 4-5  5-6 6-7 7.8  8.9 "'.10 10-11 11-12 12.1 1.2 2.3 3.4 4.5 5-6 6-7 7.8 8.9  9.10 10.11 11.12 MEAN HRS. MAX.
1 0  0 0  1 3  7 10 1  4 5  5 2 2 3  7 6  3 3 3  3 0 1 3.3 2 17
2 0  1 1  0 1  5 15 11  12 13  9 8 1 6 6 10 6 4 3 3 2  2 2 2 5.5 2 25
3. 1  1 1  0 0  2 3 4  4 4  3 4 3  3 3 2 2 4 5 6  6 1 5 3.0 2 14
4. 3  3 6  5 3  2 1 1  1 1  2 2 2 2 3 2 3 4 4  3  2 2 2 2.7 2 1
5 1  1 1  1 2  5 5 R  10 9  4 4 6 6 7 9 3 5        4.8 1 21
t- --.- i       .- - 1--.- -                     
6 Oi            4  3 3 5 5 4 7 7 4 5 1 1  2 3 0 3.6 I' 14
7 21 0 1  0 1  4 6 10  8 8  5 4 5 4 5 6 6 3 4 4 5  3 3 3 4.1 2 13
8 2 1  1 1  5 13 10 I 5 5i 5 5 4 ,. 3 5 5  2 3 3  4 1 0 3.9 2 11
9 o! 0 0  0 1  3 11 5 6' 5 6  7 8           4~1 -1' 22
10*     I      '1   I  3 3 4 3 4 3 3 2 2 0  1 2 1 2.5 1 15
           I                     
11*   2 1 i    I    !    1 2 2 :1 4 3  3 4 3 4  2 1 1 2.4 I' 12
12 1. 1 ~ I  1 3 I 6 1~ I 1     6 6 5 6 11 1 4   4  2 2  4.1 1~ 20
13 1 I 0  1 2  5 9  4 6  4    9 13 4 5 5 5  4 2 2 4.5 ' 2C 18
14   2 2  1 3  5 10 8  1 1  8 6 5 7 10 9 5 4 4 4  4 3 :3 5.3 2! 19
15 3  2 2  2 3  5 1   5 5  6 5 1 1 8 10 7 5 5 5 8  6 4 3 5.2 2' 18
16 2   1  1 2  3 " 7  ~I 5  5 4 5 6 7 7 5 4 4 4 4  5 :3 2 4.3 21 11
17. 2  2 2  1       4, 4 4 3 3 3 :3 3 3 2    3   2.8 1/ 8
18*  i 8 6  4 4  3 2    !  2 2 3 2 3 3 3 4 5 9  5 4 3 3.9 11 13
19 31 2  I 1 2 I 7 18 I 1 I 3 I 2 I 3 4 5   9 6 3 3 5 3  5 5 2 4.6 2 26
20 O~ 0 1 ~I-~- -:-  I 9 5 1:    7 5 9 6  4 4 1  6 8 3 40'7 lc 11
  I   . I                  
21   1 --'7-r 8-'--- -4! 8 5  5 8 8 8 4  3  I  3 3 4.1 1 16
2Z                    
23     ,I :                 
24*     ! I !            I      
    I I                        
25*   I i .   : j I                 
    I .              I      
     ;~-_.-;._- -.-L. --- -- '                 
26    2 I I 3 13  : 15, 1 I '. 1 6 6 1 9 10 9 6 8 1 ~i 1 ~I 4 7.4 1 25
27 2  2  15 .      5 6 5 9 5 3 4 3 :3 5 4.5 11 19
28 4  1 1 ill 1 6 11 9' 1 6! 5 4 5 5 6 8 7 3 3 3 2' 2 2! 1 4.4 21 20
29     : I I     'I            I     
30     I I     ! i            I      
     I   I                     I    
  I   I      i                    
31*     I        I                 
MEA.N 1: 2 1. 1 2  4 9 I 91 6 6! 5 1+ 4 5 5 7 6 4 4 4 4  4 3: 2 4.2  
NO. 17 20 19  19 19  19 17 I II! 111 191 20 21 20 21 21 23 22 20 20 19 20  21 21 i 20  47 
 4 I 8 6  5 4  1 18 111 12 13 9 " 7 1 9 11 13 6 8 1 9  1 8 5 1.4  26
MA.X.  !        i                       
'* Indicates Saturday or Sunday
local standard time used
TABULATED
WED.. SEPt 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
~
~
Robert A. Taft Sanit~ry Engineering Center
Cincinnati. Ohio 45226
DA'
OF
MONTH
-
MEAN
NO.
MAX.
12-1
!*
3
4
5
6
7.
8~
9
10

11
12
13
14i1
15a
16
17
18
19
20
Hi!
22.
23
24
25
26
27
2811
29.
30
2 i 2
i
I
3 i '3
24 i 23
6 8
2
o
2
3
3
61
3:
2
2!
2;
5 I
5:
2 :
1 I
61
4i
3'
I
4
4
1
4'
1
4;
'.2
2.3
3.4
4.5
1
o
1
o

1
1
3
2
2
1
o
2
o
1
2
2
2
3
1---
2 5
2 2
1 2
2 10
4 8
1
3
4
3
2
2
2
2
3
7
2
2
1
1
3
2
2
1
1
1
5
2
2
1
2
2
2
4
3
21

2
8
1
3
3
2
23
"
1
23
3
2
23
5
* Indicates Saturday or Sunday
local standard time used
A.M.
5.6
6.7
3
5
3
7
12
6
6
6
5
1
2
11
4
2
15
110

17 1.,

13111
~ 5
'3 I 3
13
4
24
10
10
22
111
Table 3-9
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
7.8
CONCENTRATION IN PPM
INFRARED ANALYSIS
8.9 9.10 10-11 11-12 12-1
8
9
5
6
B
3
-
10
4
2
19
5
'5
2
11
B
9
5
2
15 i
5
9
21
19
6
22
14
7
b
'5
31
71
b
8
b
Z
5
6
17
8
7
6
4
2
8
4
'3
6
4
2
8
6
6
5
2
6
4
:3
5
5
19
8
5
5
4
2
6
6
'3
4
'3
4
'3
6
5
5
'3
"
3
.,
5
'3
3
4
21
"
7
5
4
5
4
'3
5
5
6
6
6
4
2
7
5
b
4
5
3
.,
4
4
6
3
5
24
7
'.2
7
4
5
7
5
"
5
5
5
.,
6
4
2
6
5
6
7
9
6
3
7
4
5
6
4
5
25
9
2.3
8
5
'5
6
4
3
7
5
7
4
8
4
Z
7
6
6
7
8
-
5
3
6
4
'5
6
3
8
'3
26
8
3.4
13
5
6
9
5
3
9
10
7
6
6
5
2
6
10
10
7'
10
4
'3
9
9
8
8
5
13
7
26
13
4.5
8
4
6
8
4
3
8
8

8
4
8
5
1
6
4
8
8
.,
4
3
8
9
.,
8
5
11
6
26
11
P.M.
5.6
6
3
3

6
'3
3
6
9
6
4
6
5
4
6
3
5
8
4
3
3
6
6
9
4
5
9
5
26
9
6.7
'5
'3
4
6
'3
.,
9
6
8
4
'3
'5
3
5
4
9
6
4
4
'3
8
.,
B
4
6
16
6
26
16
7.8
8.9 9.'0 '0." ".'2
5
4
4
9
4
6
8
.,
.,
7
5
5
1
'3
4
11
7
6
2
3
23
'3
11
3
9
14
7
26
23
4
5
4
6
3
3
6
6
5
6
6
6
2
4
6
10
6
9
2 2
4 3
14 10
4 3
15 I 13

4
6
14
6
26
15
,.
5
'3
9
3
'3
11
4
5
.,
3
5
2
4
6
9
6
B
9
6
6
25
13
TA8ULATED
2
4
2
7
3
6
8
2

3
14
7
3
2
3
11
10
6
4
3
2
10
2
7
5
4
5
25
14
OE"IVER,COLO.
CARBO"l 140"lOXIOE
SEPT. 1968
2
4
2
7
3
8
5
'3
4
7
6
3
2
3
8
6
4
2

3
2
6
4
8
'3
3
4
25
8
DAILY
MEAN
5.9
4.6
3.1
5.B
3.3
3.3
7~3
5.5
5.9
4.9
5.6
3.9
2.5
4.2
4.B
7.3
5.1
6.4
3.9
2.9
7.7
5.7
7.0
6.0
4.8
7.'5
5.1
7.7
NO.
OF
HRS,
5'MIN.
MAX.
1 1 2 3 5 10 41
2 '2 21 2 5 7 6 b
4 1 2 4 4 10 16 I 14 I

~ Itl ~ _;~I__~_- --~?_. _1.~--l-~_1_8_11

2 128 B 555
4 1 1 2 ~ 3: 2 101
1 2 3 6 13 13; 10 I
2 1 2 7 18, 14' 7 6 I
, I 7 5
I --1--- ~-_.
2 I 1 2 I 5 13 ! 161 9 8

,I '
I I
2 I 2 3 I 6
i I
11
24
2

24
24
24
-24
2
24
20
U

23
9
15
27
210
24
1~
. 24
2/
2/

2'
24
2
II
2
27
18
22
12
12

12
21
22
15
40
24
24
2.
24
1

Ie
14
23
35
31
21

22
Ie
21
13
31
"
:
'61
c
E


.
40
WED., SEPt 10. 1969
I
I1Q!::h

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. laboratory of Engineering and Ph"ical Sciences
Di,ision of Air Pollution. Public Health Service
U. S. Department of Health. Education. and Wellare
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
DAY
OF
MONTH
26*
27*
28
29
30

31
MEAN
t\:)
CJ1
NO,
MAX.
12.\
1
2
3
it
5*
3
h
7
8
9
10

11
12*
13*
lit
15
2 2
13 ' 1ft
6 I 7
1. 0
1: 1
,
16
17
18
19*
20.

21
22
23
2ft
25
01
OJ
!
I
I
1
it
4:
1 '
7
I
2 I 2

3 I 3
21 " 20
13 14
II:: Indicates Saturday or Sunday
local standard time used
'-2
2
o
01
I
1
3
2
01
2-3
1
1
2
it
o
1

1
o
I
I
1 I
3
2
o
°i
01
I
2 I

2
22
7
A.M.
3-4
4-5
5-6
o
2
7
2
2
3
o
1
3
it
2
3
3
1
o
1
o
1
3
1
o
o
o
o

1
1
1
1
23
5
2
22
4
5
23
18
Table 3-10
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
6-7
7-8
CONCENTRATION IN PPM
INFRARED ANALYSIS
4
it
8.9 q.10 10-11 11-12 12-1
7
1~
6
10
3
11
4
--+-
2
7
6
9
2
5
7
8
6
3
6

11 I 9
22 I 20
28 ! 22
i
7
19
18
5
19
11
8

5
7
4
--- -
3
"
13
9
7
4
8
7
3
6
21
13
5
7
4
3
it
7
'5
14
'5
3
'5
5
6
3
6
'5
7
4
5
4
7
5
6
23
14
5

5
6
3
4
6
10

12
5
3
2
6
6
4
4
7
5
6
3
2
6
2
4
3

5
24
12
'-2
5
5
11
4
3
7
6
10
6
3
3
7
7
6
5
6

9
6
2
2
5
6
5
5
23
11
2-3
6
6
11
3
3-4
9

12
16
4
4-5
4
8
7
4
P.M.
5-6
it
it
2
6
it

10
8
8
1---
437 13
13 11 6 5
19 11 5 5
12 10 8 7
12 14 13 22
7
4
3
7
7
'5
6
5
6
11
1
2
7
5
5
6
23
11
9
5
3
10
8
7
8
11
14
2
2
8

9
5
9
23
19
7
6
7
7
8

5
6
5

13
23
2
3
14
14
12
12
9
25
23
7
9

9
3
2
3
3

15
25
3
8
11
12
12
8
8
2ft
25
6-7
2

5
2
7
6
17
9
4
2
2
1
16
19
5
13
11
10
6

5
8
2ft
22
7-8
2
8.9 9-10 10.11 11.12
7
6
4
6
22
1
3
9
16
9
20
12
3
1
2
1
3
29
21
4
8
12
8
5
4
9
25
29
8
9
2
12

13
5
4
7
8
7
28
10
3
1

2
2
1
16
11
1
6
9
6
6
5
7 6
25 '23
28 16
TABULATED
12
7
3
12
'5
4
5
7
10
16
7
3
o
1
2
2
7
8
1
5

5
7
4
3
11

3
3
3
4
6
12
10
5
3
1
1
2
2
5
7
2
4
2 I
I
4'
3
4
23
12
..,.,\.
D£NVE~,COLO.
CARBON MONOXIDE
OCT. 1968
5
10
3
4
3
3
2
5
5
4.8
8.5
5.9
6.'2
10.1
041LY
MEAN
5.3
6.2
5.9
5.0
8.0
8.6
4.5
4.7
4.5
3.9
3.0
5.4
9.8
9.9
3.8
3.2
6.1
5.5
5.3
4.1
5.9
NO,
OF
HRS.
S'MIN.
MAX.
2 1 ,it 6 12
3 3 2 2 1 '5 12 12
3 7 7 3 1 2 5 4

'71-'1; ~2f--l-Z- ---2 -. i
4 1 3 18 25 22
2: 3 2 2 3 5 11 7
2: 2 2 2 2 3 15 10
4' 3 5 5 4 6 28
7 21 21 11
594 6
1 222
3 12 II II
7 16 9 6 6

5 ~1-iOl, '5
2 7 8 I 61 5
I 1 I
I I I I
+ ___h- --'.. ._~J--,-!

'I' ,."!: : I :
~J ~- --~----~--- I 6
! ,4 II I 10 I 18 I 41 I. 2
111 1 11 2
o I 1 4 12 I 13 8! 6
01 6' 6 3,4
110 9! 615
17
6
5
1
o
1
3
3
4
6
2
6
1
2
3
4
4
25
17
10.1
24

1 !
24
24
23

24
31
16
2
1 !
2~
-Z
2

24
2
'2
2.
24
32
42
28
36
55

32
33
16
20
38
~~
23
18
2;
34
U
2
36
36
2
21
2;
I'
2C

2C
30
22
27
24
21
16
54~
55
WEO.. SE~. 10. 19~9
I'

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-11
Air Quality Seclion. laboratory 01 Engineering and Physical Sciences
~ivision 01 Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
I\j
'"
Robert A. Taft Sanitary Engineering Center
Cincinnati. Dhio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
DAY
OF
MONTH
A.M.
--
8.9
12-1
'.2
2-3
3-4
7-8
5.6
6.7
q.10 10-11
4-5
11.12 12-'
1
21)
311
4
5
3
2
2
4
7
2
2
2
6
2

o
2
2
4
2
1
4
4
2
4
2
2
3
1

!}
2
15
6
5
24
A
13
3
!I
24
.,
5
3
4
11
7
4
4

'!I
7
7
3
4
4
2

o
2
4
3
3
2
4
5
-
----
1
2
7
5 I
3i
i
11 1 I 1 1 1 1 1 3 15 13 6
12 4. 2 2 2 1 3 S ., 5 7
13 51 5 5 3 3 2 2 11 3 3 3 3
14 2. 2 1 1 2 2 4 10 11 -' 4
15 4: 4 3 3 2 2 5 16 15 fo 12 14 9

16~ 8 6 3 I 2 ~3 2 :3!3 3 3 3 3
~~~ ~ I 1 I 2 21 ~ 41 q 112 ,2 ~ :
19 2 I 3 5 I 2 2 ,. 9 22 I 25 I 12! 5 5 4
~~___~L-----L_~ - -1 5- i 3q; 35 16' ~- ~I~
21 2 i 1 2 2 I 4 5 4
~ ~I) ~. ~ ~ 1 1 1 ~ 8; 0 5 ~ 1 ~ 1 ~
~ ~ I ~ : ~ -~J_-_.: h. ~1. _3_L4~~j~ ~ ~
~~ 6 i 6 51 2 1 II 2 4 i t: I g 1611~ ~ ~

28 1. 1 0 I 0 0 0 0 0' 0 0 1 1 1
29 2' 1 0 Iii I 6 7 .,
30<& 5! 4 3 3 3 i 3 4 (', I 5 5 6 6 6

I i I
6
.,
8
9~
101)
o
2
5
2
2
2
5
14
3
6
(', I 6
14 12
1 2
4
o
1
2
2
1
8
5
16
4
2
4
9
.,
5
1
4
4
3
2
2
1
8
!I
1
1
MEAN
NO.
4'
29
8
5
24
13
5
26
14
3
25
6
3
25
.,
2
24
5
12
23
46
4 10
2!! I 23
9 39
i
6
19
16
2
25
5
2
24
4
MAX.
* Indicates Saturday or Sunday
Local standard time used
6

3
8
4
3
8
6
3
3
5
29
17
1-2
5
4
3
6
5
6
9
7
2
3
3
7
4
5
9
4
2
6
5
12
4
10
2
4
2
4
.,
1
8
8
5
30
12
2.3
.,
3
4
'5
4
7
9
6
2
2
4
9
.,
5
11
5 6
2 2
9 12
., I .,
14' 19
6
5
3
3
2

'5
.,
1
8
9
6
30
14
3.4
10
3
4
8
6
10
9
8
4
3
6
9
11
7
9
12
6
2
2
2
6
11
1
9
7
7
30
19
4.5
15
6
5
12
11
17
11
6
3
4
9
17
13
18
3
3
21
15
40
21
6
2
3
6
12
25
1
16
12
11
29
40
P.M.
5.6
8
9
8
11
7
13
18
9
5
5
8
8
12
10
17
3
11
20
79
26
3
1
4
5
19
20
1
15
16
13
29
79
6.7
5
5
11
6
3
5
13
8
4
4
.9
6
3
6
8
2
3
14
9
59
14
2
3
6
1
19
12
1
11
15
9
30
59
7.8
'5
5
11
3
2
6
9
6
1
3
8
11
2
5
10
3
15
6
25
21
5
4
6
3

15
4
2
8
19
8
29
25
DENVER. COLO.
CARRO~ Io\O~OJ(IDE
NOV. 1968
8.9 9.'0 10.', ".'2
6
'5
:3
3
1
7 '5
2 4
6 6
3 5 6
1 1 0

---
2
10
5
4
2
8 4 2 5.2 ~; 25
4 1 2 5.1 2~ 23
5 3 2 5.12; 32
4 5 7 5.2 2 22
10 13 14 9.3 2/ 28
1-----
3 2 2 3.4 2 12
2 2 2 2 2.4 1 10
17 9 5 2 8.4 2( 33
61 7 2 8.0 2 44

1: . 2: 2: : :::: ~; ::

4 4 5 5.0 2, 26
4 3 4 ., 2.3 Ie 13
6 9 8 5 401 2/ 13
4 2 1 2 5.3 2 64
2
11
6
2
4
14
3
2
3
13
5
2
2
9
4
4
8
8
2
6
9
20
l'
1
6
6
18
5
2
6
4
11
6
28
20
6
29
22
5
28
22
DAILY
MEAN
3
5
6.3
3.7
4.7
708
309
NO.
OF
HRS,
5-MIN,
MAX,
400
807
6.8
4.0
203
6
1
3
7
11
9.3
7.3
1.4
7.0
8.5
2
2
f~

2'

n
~:
2~
29
18
16
40
33
22
37
26
20
8
4
28
14
6.1
19.7
1
2/
2/
1 !
2/
27
49
12
27
35
~
64
90
TABULATED
WEO.. SEP. 10. 1969
I
AO~"7

-------
"'!"'.
CONTINUOUS AIR MONITORING PROGRAM
Table 3-12
Air Quality Section. laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
INFRARED ANALYSIS
OENVER.COLO.
CARAO~ "'ONOK[OE
DEC. 1968
N
-]
DAV         A.M.               P.M.        DAILY NO, 5'MIN
OF             ..----.                   OF 
MONTH 12.1 '-2  2-3  3-4' 4-5  5-6 6-7  7-8 8.9  9.10  1().11 11-12 12-1 '-2 2.3 3-4 4-5 5-6 6.7 7.8 8.9  9.10 10.11  11.12 MEAN HRS. MAX,
1* 5   4  2 2  3  3  4  '+  3  3 3 3 2 3 3 2 4 4 4 5  4 ~  2 3.2 f 16
2 2 1  1  2 1  3  6    13       3 4 5 10 9 4 5 3  6  6 4.6 20
3 3 2  1  2 2  6  4  11  6  6  1 6 4 5 7 9 8 12 7 2 1  1 1  3 4.9 2 21
4 3. 4  1  1 1  1  3  7  19  9  5 5 2 5 6 6 8 9 2 3 3  2 1  1 4.5 2 29
5 -~-L-~  1  0 1  2  4  6  111 9   9 9 10 12 9 21 27 17 13 5  7 2  3 7.8 2 41
        ---- .- ---/..--,.-..-.--         -        
6 31 1  01 1 1  1  6  9  131 8 6 6 7 4 1 1 13 10 3 5 2  2 2  :3 5.0 2 21
1*       ,                       
8* I    I   I        ' , I                  
9       I          : I                 - 
10  4  61 1  I 7  15  35 j   25 j 26/19 8 8 13 23 31 41 40 12 8  6 11  3 16.9 2 12
     I             
11 3 2 i 2: 2 I 2: 2  5, l' ~I 9  '1 6 7 JI 8 8 12 9 5 6 5  2 2  :3 5.3 2( 19
12 3 2 2: 2 2' 2  2i 4!   4' 4 4 4 4 1 4 2 2 2  2 2  2 2.9 2. 12
13 1 1 I 1 I 1 1  1  4 i 131 9  1! 6 6 6 9 14 13 1 11 9  1 10  15 6.8 ' 21 26
14* 17 14115:15 14  10  II; II  9  12 13 11 8 8 10 14 17 16 19  30 29  19 14.1 2C 35
15* 17 15 11, 12 10  10  10 i 6, 6  5 5 6 4 4 6 4 4 1 12 1  9 12  12 8.5 2c 26
     I     -----L - i                     
16 10 51 5! 4 4  1  15 i 29 ! 45 I  '   8 8 10 115 21 24 11 15 21  21 14  13 14.5 2: 66
   '13 9  
17 12 15 12113110: 7  6 I 25 ; 17 i 12! 4 6 6 7 5 6 10 13 6 2 2  2 2  3 8.5 2C 47
18 3 212 21 21 2  4 8, 12  7! 7 10 1 9 10 6 10 I 10 6 9 11  10 8  3 6.6 2c 24
19 4:321312; 3  4 I 9! I  I 8' 4 6 6 I 10 11 17 I 13 9 8 41 5 9  7 6.6 21 31
20 -~-~~:: ~- :-1- 2  4 ,11 10, 6  6 6 8 I 9 8 12 10 4 6 5[ 41 5  4 5.7 2c 20
    I                    
 __0. .. 3'-:  . -- - -- .--.-. --              -   
21*, 2  3  5  3' 4 4 5 5 5 6 5 3 4 3 3' 3 3  3 3.1 2C 13
 . I I I '    AI 
22* 4 3141 2 21 2  3' 3  3  4: 3 2 2 2 3 3 4 5 6 1 6 71 9 4.0 21 23
 8 ! 12    1
23 5 4i 3, 21 5: 5   15  ::':: ~16  16 15 16 31 52 31 21 11' 10 8, 8 14.5 2, 16
24 9 4i 6; 1 51 5  17. ; 34  26 i 13 18 19 26 20 11 11 15 13 i 10 14 I 14 15.0 2( 49
   I
25 10 9: 11 j~-~~. 1  t  3  3, ,+. 3 6 6 5 3 3 9 11 8 B 9' 9 I! 1 5.2 2C 25
        I                 ,    
 -.- -     H'-i9: ---           ,       
26 1 1; 0, 0 2  4  10' 26 10 5 11 6 " 8 14 16 16 8 7 5  4' 3  4 1.7 2( 57
27 3 3: 3' 2 1  2  6 ' 11   '    5 5 5! 6 5 9 9 1 5 4' 4! 5  4 5.0 21 20
28* 3 3: 3: 3 2  2  3  5  1! 6 5 8 6 31 5 4 3 3 5 3 1, 5 I 11 ,14 4.7 21 20
29* 12 8 ~ '5: 3 3: 3  ~  3  41 It, 41 3 4 5 4 4 4 6 5 4 3: 3 I 3: 2 4.2 2( 18
    ,
30 3 l' 1: 1 2: 3  4  24  15'  : 1 6 7 1 7 9 6 4 2 2' 3 4 3 5.4 2, 56
 I      !
   I  ,   1      ,                      
31 6 61 4; 3 2 i 6  10  24 i 25  7! 7 9 11 10 11 13 30 15 9 9 ,1 6 31 6 9.9 2( 44
  . i                     1    
MEA~ 6. 4i 4  3 3: 4  6 i 13 I 13 9! 8 7 6 1 8 9 13 13 9 8 6  6 6: 6 7.3  
~o 21 27128128 27: 28  28: 21 124122 ! 23 26 26 28 28 28 28 29 28 2/1 2R  2A 28: 2/1  61t~ 
MAX. 17 11' 17 15 14 i 10  15! H 45 28 i 26 19 13 18 19 26 31 52 40 21 21  30 29 i 19 16.9  76
  i                         
* Indicates Saturday or Sunday
Local standard time used
TABULATED
WE,.. SEPt 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-13
tV
CO
Air Quality Section. laboratory 01 Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Wellare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Samtary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DAY
DF
MONTH
A.M
P.M.
7.8 I 8-9 9.10- 10-11111.12
12-1
'.2
2.3
3.4
4.5
5.6
6.7
'.2
12-1
2.3
3.4
4.5
5.6
6.7
7.8
8.9
9.10 10-11
1 0 I' .0 00' 00' .03 .~; oOj 00\ 00 !
2 00 00 ooe ooe ooe 000 00 ooi oo~ 00 004 00'
3 00' .ooe 01 01' ole 025 01, olj 023 . 02~ 01 005 00
4 00 00 00 .oe ooe .01 00 01 01 00~ 01 005 00
5 00~ 00 00 00( ooe 001 00 02 020 Olj 00 002 00.

--;;; -~O~- ~O--=-O ooe -;0,--:-00 --:0 -oOq ~d ':-O--:O--~O1 .0 00
7<1 01"i 011 .19 01' 01~ 015 01~ 020 017r 01 01~ 007 00. 00
8 03d 01 01~ 01 00~1 006 00~ I I 009 oOei 009
9 004 00 000 ood oOU 002 .01 010 oil! 007 .01! 004 00' .0
10 018 ol1i 0114 oltJ 01~ oZ3 I 'I' i [
I I I I -L---I.-.---
11 01'; 029 02Q 011 01~ 018 019 02~ .1~ old oo~ 000 00( ooe 00.00 003 000001 001 ooq 001
lZ 001 I 001: 00~ 00~ 001 00~ : I I ole 017 011 02~ .1' 011 olq 020
13<1 018 01~ 0011 00'1\ olQ 009 00~ 01~ 01~ 00~ .0 I 005 00 01 026 03' oq 02C 01 01' 010

~:
-------
., I'd
CONTINUOUS AIR MONITORING PROGRAM
Table 3-14
Air Quality Section,laboratIJry of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Enginee,ing Center
Cincinnati. Dhio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DEfIIVER,COLO.
NITRrC OXIDE
FEB. 1968
N
CoO
DA'         A.M.             P.M.       DAILY ND. 5'MIN,
DF               -                DF 
MONTH 12-1   1.2 2-3 3-4 4-5  5.6 6.7  7:8  8.9 9-10 10-11 11-12 12-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8.9 9.10 10-11 11-12 MEAN HRS. MAX.
~ :8~   :8~ .~~ .oc .oc   .01  .~~  .~~ .~~ .~~ .00 .QI .?~   .Qf .01 .01 .01 .0 .0 .0 .03 .007 ~c .03
  .0  .00 .0  .0  .0 .0, .0 .05 .0 .1   .0 .08 .0 .0 .0 .0 .0 .00 .025 .12
3* .0'   ,O~ to! '~~ '~~  .oz .1  .1  . o~ .0' .o~ .04 .0' .0,   .0 .01 .0 .0 .0 .0 .0 .00 .048 2t .23
4* .oc   .o .oe .0 .0  ,00 . (Ie  .oe  .oe .oe .oe .00 .oe .oe  .oe .oe .00 .0 .0 .1 .1 . DC .03 ,021 2 .111
5 .0,   . oe .oe .oe .oe  .01 . o~            .0. .06 .o~ .0 .le .1 .0< .09 .041 I' .18
 .1; .0' - I- .~~ - 1-  -- -            . O'        
6 .0 .~~  .00 .0.       .01 .0 .0   .0 .06 .0 .0, .0 .O! .02 .029 1 .18
7 .0. o~ . o. .0 .0,  .03 .le  . 2~  .Z! .1e .0 .00 .oe .oe  .0, .0 .08 .01 .1 .2 .4' .3e .15 .104 2 .41
8 ,2e.l .O! .0 .0'  .04 . O~  .1 c  .1 . ~~ .04 .03 .0,    ,0 .03 .0 .0 .01 .1 .0 .11 .082 2 .25
9 .0'. oc .0 .0' .0  .04 .0     .0 .o~ .03 .0 .0'   .0 .05 .0' .Oc .oc .01 .0/ .05 .046 '21 .12
10* .04.04 .0. .oe .or  .02 .oc  .0  .O! .0 .0 .00 .oe .oc  .oe .01 .00 .0 .1 .1/ .2e .0' .02 .038 2 .26
  ,                              
11* .0] .~~ '~i .0] '~l  .00 .oe  '~J  .oe .oe .oe .00 .oe .OC  .oe .oc .00 .~~ .0 .0 .0 .OC .00 .008 2 .06
12 .oq.o .o .oe .0  ,00 .0  ,0  .0' ,0 .0, ,02 ,01 ,0   .o~ .03 .0 .0 .oc .oc .oc .00 .012 2 .07
13  !                              
14  i                              
15                               
16           I    .o~ .0'   .0'   .0'  .O! ..0' .O~ .lC     
17*  : ,01 .01 ,01 .01  .01 .o~ .01 .oe .06 .o!   .06 .1 .05 .049 2 .14
18* .041 .0' .11 .14 .oe  .10 .1 .1~.13 .141.0 .05 .0, .oe   .0' .01 .0, .0] ' .o~ .1/   .070 2C .17
19 .o~        I I I I                 
20 .02 .0, .01 'lii ~l-' ~-~~~~.~~~ .02 .0, .0,   .o~ .04 .0: .01 .01 .01 .01 .01 .036 2~ .25
21 .02' .02 ,O~ ,01 .03 .04 . .01,211 .28 .25: .O! .04 .o~ .0\   ,0\ .11 .~~ .o~ .0' "o~ .0< .05 .077 2~ .30
22 .05  ,01 .0 .Oc .o .00 .0 .01;.1C .o~ .04 .04 .O~ .o~   .Oi .09 .0 .o~ .0 .1 .lC .10 .050 2. .11
23       .o~ .01    I ;                 
24* .03  .01 ,0 .00 .O~ .09..0 .o~ .01 .00 .OC .OC  .00 .00 .00 .00 .0, .0' . o. .o~ .08 .020 2 .14
25* .09 .03 .Olt! .OC ~~t~~~ .o~ .04; .02 .011 .OC .00 .oc .OC  .00 .oc .00 .01 .01 .01 . o~ . o~ .02 .019 2' .12
      .oc - .-1._---+-     .oc     . o~ . o~   .02    
26 .01  .01 .01 .o~ ..01 .11' .261 .1BJ .o~ .O~ .06 .01   . o~ .05 .0 I .0 . .03 .049 2, .28
27          I I                
        I     I I !            I .03   
28        I                  
29 .01! .OC .011 .OC .o~ .00 .0.   i'       .0 .03 .01 .0 .02 . o~  .019 14 .08
   ,      !                  
   i   j     ,                   
 I                            
MEAN .041 .03 .03 .02 .01  .02 .o~ .10  .10 .06 .0' .02 .011 .o~   .0. .04 .O! .o~ .06 .oe .06 .04 .041 44C 
ND. 200/ 21 21 20 20  20 21 17  1'7 18 18 19 19 18  6 Zl 21 21 21 21 21 19J 20  
MAX. .20 .13 .11 .12 .08  .10 .121 .Z6  .28 .Z5 .01 .06 .01 .1<  .02 .0\ .11 .0e .11 .21 .4C .3! .15 .104  .41
~ Indicates Saturday or Sunday
Local standard lime used
TABULATED
WEO.. SEPt 10. 1969
[ -

-------
:CONTINUOUS AIR MONITORING PROGRAM
Table 3-15
Air Quality Section, labora:ory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department 01 Health. "Education. and Welta"
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DENVER,COLO,
NITRIC OKIOE
!o1ARCH 1968
c;.)
Q
DAY       A.M.             P.M.       DAILY NO. 5.MIN,
OF                         9.10   MEAN OF MAX.
MONTH 12-)  '.2 2-3 3.4 4-5 5-6 6-7 7-8  8-9 9-10  10-11 11-12 12.1 1-2 2.3 3.4 4.5 5-6 6-7 7.8 8.9 10.11 11-12 HRS.
1 .O~  .O .~~ .0 O~j 002 o~: o~:  00\ 0 I?!  004 000 o~~ 00   00 003 0~1 o~( o~( o~~ 0 ~~ 007 .035 2. 013
211 0 1 ~  OO~ 00 06~ 00 006 00 00  00 00  00 000 00   .0. 00 001 .0 00 00 00 00 .00 .025 2. 014
311 0'  .OC OO~ o~~ oOC  .0 00  00 oOC  oOC 000 oOC oOC  001 001 001 00 .oe o~~ . ~~ oOC .00 0012 2. 012
to :OC  oOC oOC 00 oOC     0 O~ 00    oOC oOC   00 003 00! 00 00. 00, 00 003 0020 1 010
5 oOC  oOC oOC 00 oOC 000 00! 00  oOE oOE  0 O~ 001 001 oOC   00 002 00 00 00 00' 00 002 0018 2; 009
-    001 o~~   004 o~~           00'  00'        
6 00  00 o~~ 000      000    00 006 o~: 00 00 00 002 0034 ~~ 030
7 00  oOC oOC 00 00 002 oOE 01  015 00\  00 004 .0. 00.  00. 00' 001 00 00 00 001 001 000 0031 019
8 oOC  oOC 00 oOC oOC 001 00; ole  0 O~ 00]  001 001 00 00  .0 .oc 004 .0 0~3 00 .0 00 001 0019 2 014
911 00  00 00 00 00~ 003 00. 00  oDE 00!  .0' 005 00 00   ooe 005 00. .0 00 .0 00 003 0034 "Zil 00'1'
lOa 0 O~ 001 00 00 001 001 00 00,  00, .0  00 002 00, 00.   002 .02 002 00 00 .0, 00, 001 0016 22 003
11 o~~ 001 oOC oOC 001 001 00/ olJ  olc   oOE   00'   .OE 004 .0 '~I 00 .0. 00 003 0028 1e 013
12 00 001 00 00. 00' 003 oOE 00  00 00!  004   oOC   00. 000 001 00 oOC oOC oOC 000 0019 21 009
13 ooq oOC oOC oOC oOC 000 oOC         00   oOC 001 00' 00 oOE 00/ 00' 004 0021 . 1( 009
14 000 oOC 00' oOC oOC 000 00   oOE 00   000 00 oOC  00 00 001 oOC 00 00 00 00 001 .009 2 009
15 0 0 ~ oOC oOC oOC oOC 001 00 00' 00' 001  oOC 001 oOC oOC  00 00. 003 00 004 00. .0/ 00 001 0016 2' 011
16a oOa 0 ~~ 0 ~~ o~~ oOC .00 o~i 01h1 oU o~~ 005 00. 0 ~c  oOC oOC 000 00. o~: 00/ ooc oU 010 0041 2' 014
11a 00~ 00 00 00 oOC 000 00 00 00 00~.0 000 oOC 00 oOC  oOC 000 oOC 00 001 001 001 000 0005 2 018
18 00 oOC oOC oOC oOC 001 00 006 00 0011 001 000 001 oOC  00 00 000 00 00 00 .0 00 001 000'1' 2 012
19 009 oOC 009 oOC 00~ 001 00~  I I I   00 00  00 00 001 00 00 00 00 00 000 .004 1 002
20  I  1-     I   ,                 
  ,  --.- -- - - -- - - -. -. -1-- - -                  
21  I                       
       I                    
22        I                    
2311                   . O'  00'       IE 
24a  ; oo~ OO~ OO~ 004 002 J 00~ 00( 100' 000 ooc 00   000      .019 008
25 i                     
     on - . ._~-                
26 oOli oOC oOC oOC oOC 000 0011 003\ 003 001  001 001 001 001  .0' .04 003 00] 00] .0 .OC .0 000 .010 2: 006
27       I                    
28  i        I                    
29 002[ 002 001 001 0011 001 .01 0 oj ooe 003' 00( 001 00 001  .01 00 .04 003 .04 00 .Oil 005 003 0023 2~ .09
3011 0021 001 001 000 oon 000 001 002  003 001  001 000 001 .00  .01 001 001 001 .01 001 .0' 001 .01 0008 2 .03
31a oOC  oOC 000 oOC OO~ 000 oOC .oe  oOC ooe  .oe 000 .oe 001  .0 00 000 .0 .0. .0 .0 .0' .00 .004 2 .03
MEAN .01  .01 001 001 001 001 00; oo~  00~ .O~  .O( .01 .01 .0]   .0. .02 .0. .0. .0 .0; .0, 002 .019  
NO. 23  24 24 24 24 22 23 20  21 20  19 19 20 22 1 14 24 24 24 23 23 23 23 23  50 
MAX. .12  009 006 006 .0' 006 OO~ .2;  01~ 0 Ie  ooe 005 .0; .03 .OC .0' ,0 .06 .0 . O~ .O~ .0\ ,le .10 .041  .30
* Indicates Saturday or Sunday
local standard time used
TA8ULATED
WEO.. SEP. 10, 1969
c
E


.
I
.11 a:~ 1

-------
..., ~ ~..
CONTINUOUS AIR MONITORING PROGRAM
Table 3-16
Air Quality Section. Laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department of Health. [ducation. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DENVER.COLO.
NITR!C OXIDE
APRIL 1968
w
~
DAY         A.M.             P.M.         DAILY ND. ~'MIN,
DF                                MEAN DF MAX.
MONTH 12.1  '.2 2.3  3.4 4.5  5.6 6-7  7.B B.9 ~-IO  10-11 11.12 12-1 '.2 2.3 3.4 4.5 5.6 6.7 7.B B.9  9.'0 ,o."  11-12 HRS.
1 .0   .0  .0 .0  .09 . ~~   .0 .04  .0 .01 .0 .0 .OC .0 . ~~ .02 .0 .0 .0  .0 .0  .01 .025 2 .14
2 .0  .0 .0  .0 .OC  .01 .0   .0 .0  .0 .02 .0 .0   .0 .04 .0 .0. .0  .0 .0  .00 .018 2 .11
3 .0  .0 .Oc  .OC .0C  .01 .0  .0 .0   .0 .02 .0 .0  . O~ .04 .04 .0 .0 .0  .0 .0  .01 .020 2. .12
4                              
5            .0' .1. .0  .0. .01 .0 .0   .0 .05 .0 .O! .0'  .0 . OJ  .03 .043 l' .14
 ----      -- -'- -- - --" - ..-   -                 
6* .01.0 .0  . O~ . O~  .01 .01  .0 .01 .0  .0 .00 .0 .0  .0 .0 .01 .0 .0 .0  .0 .0  .00 .008 2 .12
1* .0 .0 .0  .0 .0  .00 .0  .0 .0 .0  .0 .00 .0 .0  .0 .0 .00 .0 .0 .0  .0 .0  .00 .001 2 .01
8 .0. o~ .0  .Ot .O~  .06 . \.  .1' .o~ .O~.O .03 .0. .O~  .0. .O~ .05 .0 .0 .0.  .Oe .oe  .02 .043 21 .20
9 .0..0 .0  .0 .OC  .02 .0.  .0' .0 .o~.o .01 .0    .0 .04 .0 .0 .0  .0 .0.  .01 .01'5 l .06
10 .03 .0 .OC  .oc .09 .01 .0  . o~ . o' .0 .04 .00 .0 .0  .0 .0; .04 .0. .0 .0'  .0 .o!  .08 .024 2 .09
11 .04 .Ot .0 .01 . ~9 .00 .~~  .~~     .00 .01 .01  .0 .0 .04 .0 .0' .0'  .0 .0.  .02 .021 2( .10
12 .03 .O~ .o~ .0' .00 .00 .0.  .0' .0 .0  .0' .01 .O~ .O~   .0 .02 .0 .6; .0  .0. .0'  .03 .017 2. .0'
13* . o~ . O' .0 . O~ .01  .01 .04  .0. '~I .~C  .0' .01 .OC .~~  .O( .o( .00 .Oc .OC .OC  .OC .0  .01 .015 '2' .11
14* .00 .OC .0 .OC .or  .00 .OC  .0 .0 .0  .OC .00 .OC .0  .0 .O( .00 .O( .0 .0.  .0 .oe  .04 .008 2 .01
15 .Ol .OC .0 . O~ .0,  .01 .0;  .oe  .01  .0 .01  .OC  .0. .0 .01 .OC .O( .OC  .OC .OC  .01 .012 2 .12
16 .00 .O~ .~~  .OC .OC  .00 .~~  . O~ .O!        .0 .0. .02 .0 .0 .0  .OC .OC  .00 .014 11 .01
11 .00.0 .0  .OC .OC  .00 .0  .1(. .OE .O~ .04 .03 .0; .O~  .O! .O .01 .0 .0 .0]  .0] .01  .01 .028 2 .13
18 .0 l' .0 .OC  .OC .OC  .01 .0.  .061 .O~ .0 .O~ .07 .0' .O~   .01 .08 .0' .0' .0'  .03 .0:  .01 .037 2, .10
19 .01! .oq .oq .oq .OC  .02 .0'  .061 .O~ I .O~ .04 .0"1     .04         .026 1 .09
20*     I I     Ii; i                   
  ~  I                        
21*   .0 .O~  . 0~-'''02 --:gf .o-i-:-g~:g~   .0. .~~  .Q2 .~~ .02 .~~ .01 .~~ .~~ . ~~  .01 .020 I! .02
22 .OZ.O . 0 . O~ .0, .02 .O~ .03 .o~ .O~ .0' .03 .0' .0  .O~ .0 .03 .0 .O~.o .o  .01 .029 2 .09
23 .02.0 .01. OC .O~ .00   .04 .04  .0 .O~ .02 .01 .0 .0 .0 .0  .02 .013 2 .04
24 .03 .O~ .01 .01 .0 .00 .0 I .O~ ~;   .04 .04  .02 .O~ .05 .0'1 .0 .Ol! .0. .0  .02 .022 1~ .01
25 .01  .OC . O~ .OC . ~j~~~ _3_'0r.-,~- .O~ .0. .02 .O~ .0.  .02 .0, .04 .0. .0. .011     .021 2( .10
       I     
26    .!   I   . I  .01!  .01 .0 .~}  .q~ .02 .02 .~~ .0, .03 . O~ .011 .03 .011 1 .05
2.,. .02 .01 .011 .OC . O~ "00 .O~ .0'.0 .02 .0' .02 .0' .0  .01 .01 .02 .0 .0. . O~ .0. .O~ .01 .018 2 .06
Ze. .OZ .0. .02 . o~ .01' .02 .O~ .01: .O( .00 .OC .00 .OC .OC  .OC .oc .00 .OC .0 .02. O! .O~ .00 .010 2 .05
29 .00 .OC .od .OC .od .03 .1 .10 .01 .O~ .O~ .02 .04 .0'   .O~ .01 .01 .0 .oa .0. .0 .01 .023 2. .16
30 . O~ .OC . ad . OC .O~ .01 .021 .05   I   .01 .01  .O~ .O~ .01 .01 .0. . o~ .0 .0 .05 .020 1 c .10
  I   i   .,   !                   
  !   I     I   i                   
      I   I                 I    
     '   I   I                    
         I                    
MEAr-.: .02: .01 .0:1.01 .011 .01 .031 .05 .05 .031 .Oz .02 .02 .02  .0. .0 .03 .Ot .Ot .02  .02 .oi .02 .020  
NO. 25 2' 26 25 26126 26 I 2. 23 22 I 21 23 26 25 1 21 21 28 21 26 21  26 261 26  51E 
MAX .0'1 .05 .04 .09 .05 .09 .131 .14 .12 .011 .O"! .01 .05 .06 .00 . O~ .O~ .09 .0' .O~ .O~  .OE .061 .09 .043  .20
       i              i    
* Indicates Saturday .or Sunday
Local standard lime used
TABULATED
WED.. SEP. 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-17
Air Quality Section. laboratory of Engineerinz and Physical Sciences
Division 01 Air Pollution, Public Health Service
U: S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
w
f\:)
Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DAY
DF
MONTH
A.M.
12.'
'-2
2-3
3-4
5.6
4-5
6-7
7-8
8.9
9.10 10.11 11.12
1 0oq, 00 oOoH 001)! 00( 003 oq~ 00 oQ; oQ1 00 001
2 0" 00 0" 00 00 003 00, 00 00: oo~ 00 001
3 00 ol?~ 00 00 001
40 00~ 00 .0 00 001 003 .0 00 00~ .O~ 00 001
50 --.:_O~~ 00 00( 001 000 00 -~O- 00~ '~1~~- 000

6 ooq o~! 001 oDe 00( 002 00. ~ .0. .01
1 .oq 001 00 00 .0 000 .0 00 oo~ 00 OO~ 001
8 .o~ 00 oo~ 00 oDe 008 01 I.
9 000 ooe .oe ooe ooe .02 00'.0 .03 .02 00 000
10 009 ooe ooe ooe ooe 003 oOE 00~ .o~ ! 002

110 oo~ 00 oo~ oo~ .01! 001 .0.. 00~ 00. ol?~'.o .02
120 .02.0 .oq 00~ oOf 004 oo~ 00~ 00 oo~ .0 .01
13 ooq 001)( .O~ ooq oDe 004 oo~ 00 001 .O,i .0 000
14 000 00 000 oo~ .0' 003 .o~.o .o~ 001 00. 001
15 .o~ .01 ooq .01 ooe 000 ~ _~i 001

16 001 00 --:oiI----:oIr .o~ 002 oo~ .09, .o~ .O~ .0' 005

~~o :~~ :~e :~~ :~~ :~~ :~~ :~~ :~~ :~~ :~~ :~~ :~~
190 oo~ 00. .oq oo~ oo~ .01 00~ 00~ oog ooq ooe 000
20 ooq ooe .oq .oq 000 .01 008, .01 004 oo~ .0. 001

21 ----:Ol;-:O~I---:Oil-:o:J :o~ 002 -.o~ 00~ ;oJ -, ~oc ':00
22 000 00 ooq ood ooq .01 I ! .051 002 001 .01

~: :gg:g :g~ :g~ :g~ :g~ :g~ .o~ olQ .0J :g; :g~
2SQ 00~ 002 0011 009 002; .0'3 oo~ 002 .09 001i 001 .01

260 001: o~! ~~-:ot :00 ~od .of.og .0d.M 000
21 000 OOL oo~ 00 00~ 003 .o~ oO~ oo~ oo~ 002
28 002 oo~ 001: .0 . 002 003 .o~ 006 oo"i 001 00. 003
29 002. 001 00~ 00 .00 001 00~ I d ooe 000
30 003 001 .00 .oe 00~ 000 .OQ ood ooe 00, ooe 000
, I I I.' I
oo~ ooe oo~ ooe 0011 .01 00' 00!: oO~' .o~ ooe .01

oOli 001 ooq .oe 001! .02 .O"~ ooe .0 .o~ 00 .01
30 I 30 30 -/ 30 30: 30 29 26 21 24 j 21 30
.01! 003 .041 003 .061.01'1 .11: .o~ 01C 0051 ooe .05
31
MEAN
ND.
MAX
* Indicates Saturday or Sunday
Local standard time used
12-1
'.2
00
00
00
00<
00(
.0
00
00
.01
.0
00 00
00 00
. o~ 0 o.
o oe ooe
00 00,
00
00<
.0<
00
00
.0
00(
00
.0
.0.
.0' 00'
00 00
00 .oe
.oe .oe
00. .0'
.oe .oe
001 001
00l! 001
.od 0 o~
00 001
00 ooe
00 . o.
00 .01
00 .oe
o oe .oe
.0
00
.0 .01
31 31
. o. .05
2-3
3-4
00
o ~~ 00
00, 00
00 00
00 00 .01
00 00 .01
00 00 .01
00 00. .00
ooe 00' 003
.0 00 .01
ooe .0 001
ooe
.0 00 000
ooe 00' .02
.0
.0' 00
00' 00
.oe 00
00
.0 00 .00
00. 001 000
.0 001
00. 00. .01
001 000
00 00 .00
00 00 .01
00 .0' .00
ooe oOt .01
ooe ooe .00

. o~ 000
.o~ .0 001
24 30 28
.o~ .0' ."4
4-5
00, 001
P.M.
5.6
003
.00
.04
.02
000
000
001
6.7
.0' .0
00
.0
.0
00
.0
00
o oe
00
00
00
7-8
00
.0
00
.0 00
oo~ .0
00 00
o ~ ~ ooe
004 0 o.
8.9
9-10 10.11
.0
.0
.0
00
00
.0
00
00

.0
00
00
.O(
.0 .0< 000
.Oe 00 .01
.0 ooe 001
.oe .oe .00
00. .o~ 002
oo~ 00~ .OJ 00. .02

00 .0. :~: oo~~.~~

00 .0 000
00 00 002
--
.o~.o 00 .03
.0)] 00 .o~ 001

.o~ 00 .0 .01

:g~~ :gi :g~

.oq .~~ 00 000
.oq 00. 00 .00
ood .oe 00 000
oo~ ooe 0031 001
oo~ .0' 00~ 002

003.0 oo~;~
.o~ 001 00 .03
000.0 oOlJ 001
.0 .0. 0041 006
.oe .0 .o~ 001

.0 .O( .0 009 .00

.0 .ot! .01
30 291 30
.o~ .o~ .01
ooe .oe .0
oo~ 00] .0]
.0 00.
.0 .0
.01 001
o oe 001
001 .oe

o oe .~!
.oe 001
.0 ooe)!
.0 00
001 ooe
00 00
.0 .0
oDe" o~~
.0 .0
.oe 001
.0
.0
29
.0
.0 .0
29 29
. O. .0
"-'2
.01
0020
0025
.020
.011
0001
DE~VER.COLO.
NITRIC OXIDE
"1AY 1968
DAILY
MEAN
NO.
or
HRS
3-MIN,
MAX.
001
.00
000
0012
0012
0026
001'0
0021
0015
0020
0011
0012
.012
0035
0018
0006
0004
0016
0007
0001
0005
0022
.013
0004
0015
0017
.011
.003
.013
.014
.035
f
1
2
2
:U

008
001'1
004
2 .05
Z 00'3
U .12
2 .10
2 012

Z' 003
2: 011
'1 009
2' 001
1e .04
2
2
2
2
2
012
001
002
002
010
2. .0'5
2 .05
11 004
2 .11
2. 001
2 004
2 005
2 ~ .09
2 C .01
2 ~ .04
2. .01'1
~
66.
.15
TABULATED
WEO.. 5EP. 10. 1969
I"
JlO"~

-------
CONTINUOUS AIR MONITORING PROGRAM
Ai, Quality Section. laboratory 01 Engineering and Physical Sciences
Division 01 Ai, Pollution. Public Health Service
U. S. Department 01 Health. Education. and Welfare
Robert A. Taft Sanitary Engineering Center
Cincinnati. Dhio 45226
DAV
OF
MONTH
16-
17
18
19
20
21
22*
23*
24
25

26
27
28
29*
30*
"'"
"'"
MEAN
:\10.
MAX.
12-1
'.2
.OC .OC .OC .OC .OC .01
h
2-
3
4
5
2.3
3.4
4.5
Table 3-18
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
A.M.
5.6
6.7
7.8
8.9
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
q-IO 1().11 11.12
.0
.OC .03
.0. .0
.0
6
7
8-
9*
10
.0- .OC .00 .0 .n .0' .0' .0. .00

-------.----- -- "-
.0 .01 .0. .0. .0. .0
.0. .0. .01 .01 .0' .0. .0.
.O! .o! .0 .01.0 .01 .OC
i
I

I .O~.o .02
.o! .02
.Oa .01
.0 I .00
.OC
.0 .0
.oq .OC
11
12
13
14
15-
.oc.
I
I
i
I
I .o~ .02
. o~ .0
I
I
I
-1-.
I
.00 .01.0 i .011 .OC .OC .01

I I I I I

1--.Ol-._O~---"O'i,.O-~--"-O-l-=-~li .OC .00
i !: I
! . :J i
I I
--L____. -~. ~ . I

; i! I !

I I I. . '..
.O~ .05 .1~ .O~ .O~ .01
ii' I

I ~
i I

A: 81 8 9 9 9
.07. .o~ .10 .o! .0. .03
i i
4 4 3 4 7 8
.011 .01 .02 .0. .01 .02
* Indicates Saturday or Sunday
local standard time used
12-1
'-2
.0
.0
.0
.0
.01 .01
.0 .0
.OC .OC
.0. .0.
.0
.OC
.OC .O~
8 8
. O. . O.
2.3
3.4
.OC .01
.0,
.0
. O~ .0
.OC .0
.0
.01 .01 .00
.OC .01
786
.O~ .0' .00
4.5
.0.
.OC
P.M.
5-6
.00
.00
.00
.00
.00
6-7
.0
.OC .0
.0
.01
.01
7.8
.0
.0
.0
.01
8.9
.0
.o! .0
.0.
.0
.0
.0
9.10 10.11
. O. .0
.01 .02
.0
.0
.0
.0
.0
.o(
.0
.OC .OC .02 .02 .01 .00
668
.01 .01 .0.
I
i
.OC .01
-
I
I
.01: .01 .O~ .01
I
TABULATED
I

I
7 9 I 9
.0. .O~ .02
"? ,
DENVER,COLO.
NITRIC OXIDE
JUNE 1968
11-12
.01
.013
.02
.00
.01
.010
.015
.003
DAILY
MEAN
.009
NO.
OF
HRS
5.MIN.
MAX.
.02
.023
2
.06
.008
.006
.027
.027
1

1
2
.2
.12
.06
.08
.03
1e .08
IF .03
1 ~ .03
l' .12
16!
WED.. SEP. 10. 1969
.12

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. laboratory of Engineering and Physical Sciences
Division of Ai, Pollution, Public Health Service
U. S. Department 01 Health. Education. and Weltare
c..,)
~
Robert A. Taft Sanitary Engineering Center
Cincinnati, Dhio 45226
DAY
OF
MONTH
12.'
'-2
2-3
!
3
4
5
3-4
4-5
Table 3-19
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
A.M.
+---
5-6
6-7
7-8
8.9
q.IO 1(}.11 11.12
00 00 00
ooe ooe ooe
.0. .06 .0' 004 .0
00. 00 001 00 .0 00!
.0 00 002 .n .0' .04

.---- -1-,
.0 .0 001 .0 .0 .0
.0
60
N
8
9
10
.0
ooe .0
oO~ 00
11
12
130
1411
15
002 001
31
004
J
1
i
.0
.0. 001
-----
004
.01
.O! .O!
.O( .00
00. .OJ .02 00.: 00~ 000
00 0021 00~ .00 ,1
00' .O~ .O~ 001; 00~ .01

.o~, .O~ .O~ .o~'
oOj .0]1 .0UI 00, .O~ .00


ooJ .06 0011 .odi .0J .02
, I' I
":O'~- oOr.O~ .oq .o;~ 000
00~ .O~ ooq .OQ.O .01
.o~ .04 0021 00~ 00 .01
.O~ 00~ 00~ ooq .09 000
, 002 001
f'
-.----
I
. I
-----_L____L
i i I
I I
I '

I


14115
.09r .OE
i .
MAX
!
1, 7 5 5 5 11
.041 .02 .01 .02 .O~ .06
MEAN
NO
* Indicates Saturday or Sunday
local standard time used
12-1
'.2
00
.0
ooe
ooe
ooe .oe
00 00
ooe
001 .0
.0
.0
00
00
.0
00
00 00
.0 001

:gel :gq

00 .00
 i   
 i   
 ,   
14 1331 12 12 12 15
.O~ .03 .0. 002 .01 .0
2-3
3-4
4-5
P.M.
5.6
6-7
DENVER,COLO.
NITRIC OXIDE
JULY 1968
7-8
9.10 10-11
DAILY
MEA.N
NO,
OF
HRS.
8-9
11-12
00. 00 001 .01 00 00. . O. 0 O. .02 .020 l' .06
ooe 00 000 00  .oe 0 O. 001 ,009 1 004
.0 .0 .01  00 .0 .0 ooe  .017 1 008
     00 .0. 00 001 .008 11 .04
ooe 00 .01 .0 00 00 .0 00 002 0006 1 .03
 00 .00 001 001 00! .0 00 001 0018 2 011
00, 00 .00 001   .O( ooe 001 0008 1 004
 00 000   .O( .0 .0  .018 1 .10
.01 00  .0 .01 00 00 00 .02 .014 1 .06
00 00 .01 .0   .0 00 .01 0015 1 001
.0
00 001
o OC .0
00 00 002
00. 00
001 .01 .01
11
.0
15 12
. O~ .02
001 ooe

I
: I '1.01
, .03
1 I
: I 002

16 .01 .o~ -1--1400'
17 Ii' 0 ~ ; 002
18 I I : I I
19 ! I I I i
::: _0-~1~1. 00 ~~~,_._--

22 !
23 :
24 I i
25 I:

26 ,I I!
27f1 ,
28f1 I
;
29
30
000
.0
.O(
.oe
00 .0
.0 .0
.01 .0
13 9 10
.0. .OJ .0
00
00
0018 1 .08
0011 11 .01
0008 1 .03
.012 1 006
0009 1~ .04
0011 le 003
. O. 00
.02
I .0. 00~
00~ .oe :~~ 000
I .0. 00~ .01
.Oli 00. .0. .01
i --

i
,--.-L-
!
15
.0.
.Oli
1~j 12
.01 .02
.020
26e
TABULATED,
WED.. SEP. 10. 1969
"
5.MIN,
MAX,
~
:
.11
r
JI'Q.r. ~

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory of Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Weltare
Robert A. Taft Sanitary Engineering Center
Cincinnati. Dhio 45226
DAY
DF
MONTH
12-1
1.2
2.3
1
2
3.
4.
5
J
3.4
4.5
I---r-
I
!
I
I
!
 6
 7
 8
 9
 10.
 11.
 1Z
 13
 14
 15
 16
 17.
 18.
 19
 20
 21
 22
 23
 24.
 25.
 26
 27
 28
 29
 30
 31.
 MEAN
W NO.
CJ1 MAX.
.OC .OC .OC
.00 .01 .OC .OC
.O~ .le .O~ .0
.01' .OC .og .OC
. .O~ .04
I
.01
.~61 .10 .~61.~7
'* Indicates Saturday or Sunday
local standard time used
Table 3-20
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
COLORIMETRIC ANALVSIS
A.M.
5.6
6.7
7-8
6.9
9.10 10-11 11-12
... -"'--1-'
I
I
-- -. --
I
I
. I
I I

I I I

.OC .00 ?-1-1 .O! .O! .01
.Oc .02 .o~ .o~ .021 .011 .OC .00
.04 .04 .o~ .02 .oq .oq .oc .00
.0. .06 .1~ .o~ .O~ .o~ .01 .01
.0~..0_7 _'_1_~_'1~~. :"'0_~-":'°3'0 .01

I .02 .0J .0 .00.0 .01
I .O~ .10 .O~ .04, .01 .O~.o .00

. ~-_.. J_---1 i
i ! I
J I I
I ' I
I I

I
I
,
i
I
i
6' 7
.081.10
i
7! '5! 6
I . I
.1~ .11 .02
!
I
i
I
I
!
1 I 7 7
.02i .02 .01
12.1
1.2
.0' .01
.01
.OC
.01
.0
.o~
.O~

.0 .OC
.OC .OC
7 5
.01 .01
2.3
3.4
4-5
... ".
DENVER.COLO.
NITRIC OXIDE
AUG. 1968
P.M.
NO.
OF
HRS
DAILY
MEAN
5-MIN,
MAX,
5.6
6-7
7.6
6.9
9.10 10.11
11.12
-
.0. .0 .00 .O! .OC .OC  .0 .01  .00 .005 2! .03
.0 .0 .01 .0 .0 .OC  . O. .0  .01 .009 2. .04
.0 .0 .00 .0. .0 .0;  . o. .0  .01 .024 2: .15
.04 .0 .02 .0 .0 . 0 ~ . O. .0  .02 .023 2 .18
.0 .0 .01 .0  .0,.0 . O!  .01 .0:'12 2e .18
. O~ .01 .00 .~C .OC .O~ .0    .010 11 .09
.0 .00 .0 .oe . 01' 0 .Ol! .01 .019 11 .19
     I    
     i    
      I   i    
      ,   ,    
      I      
      i       
      I       
      I       
      I       
         i    
6 7 7 7 6 7  1 6' 6  141 
.O~ .03 .02 .0, .01 . O~  . O~ .05 .02 .032  .19
       TABULATED  WE".. SEP. 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-21
~
a')
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Weltare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DENVER,COLO,
NITRIC OXIDE
SEPT. 1968
DAY
OF
MONTH
A.M.
--
12-1
2.3
7.8
'.2
3.4
5.6
6-7
8.9
9.10 10-11 11.12
4.5
lfI
2
3
4
5

- --- -c-.
6 00 oOC 00 .0' .09 0 le .0'
7!1 00 oOC 00 00 002 00 00. 00 001
811 00 ooe 00 .0' 001
9 01' 00~ 001
10 oo~ ooe ooe ooe ooe 002 I 00 000

11 .oq ooe .oe .oe .o~ .03 00~ .1 .OE.O .oe 000
12 ooq oOC oOC ooe ooe 002 01 00 00. ooe 000
13 ooq ooe 00r. ooe ooe 000 00 00' oDe oOC 000
14!1 00~ 001 oor ooe oOC 000 00 00 00~ 00 00 001
1511 001 00~ 001 001 oOC 000 001 00 00' ooe ooe 000


17 ! 00 oOC .oe I I oOj' .0. 00~ .02
18 ! I
19 I I 0 OJ 001 001 I I I I 000
;;: --'~4' ..".'..,OC '''. .'I..I'l 1." J. -ji--t-

23 I 01 .0 00 005
24 .03 00~ 00l! I ' 022 .08 1.0 001

25 oOli OOJiOi~---='~"-"" _J '-;-'~~ ~1~~0 .01
26 .O~ 00 001 oog 00~ 005 .1~' 01~ 00 00~
27 00~ .01.0 oOJ .O~ ,01 .051.0 001
2811 .(')9 .05 .01' .01.\ .00 .02.0 . 00 , ..0 .02
29Q .00 oOC ooq 000 .00 000 .oq 009 .og 000 .OC 001
" "1 .oc "9 .01 .'li'04 .n. .ll, .,. "1'" .'l



MEAN .01i .01 000 000 .OC oOE .02 .01
NO. 16;~ 1.8 19 18 18 14 10 12 17 15 17 19
MAX. .0 .05 .01 .01 .02 .05 .1~, .211 .16 .1C .O~ .05
i
(: Indicates Saturday or Sunday
Local standard time used
12-1
00
00 00
00 00
.OC 00
00
. DC .OC
00 00
o OC .oe
. O~ 0 O.
.0 .0.

.OC 00'
. o. .0
00 .0
.0. .0.
.0.
.OC .OC
.0 .0
.0
.0' .01
17 18
.Olt 0 0 ~
'.2
.0
.0
00
P.M.
NO.
OF
HRS.
DAIl.Y
MEAN
5.MIN,
MAX.
2.3
6.7
8.9
9.10 10-11 11-12
3.4
4.5
5.6
7.8
       --    
00 .0 001 .0 oOc 00 00 .0 .o!! .028 1E 013 
.0 00 001 .0      .011 1 002 
00 00 .01 0 O~ oo~ 00 .0   .010 Ie .04 
 .OJ .03 00. .0. 00. .Oc 00 003 .035 -1 017 
 00 .02 00 .0. 00. .0 .OC 000 0009 1E 006 
 00 .02 .OC 00. 00 .0. 00 .01 0022 2. .19 
 oOC 000 .oe .OC .0 .OC .oe .05 .019 1~ .1~ 
 00. 002 .0 00 00 .Oii 0 O. 004 0012 .2 007 
oOC oOC .01 00 .0. 00 .0. oOC 000 0009 2 .06 
.OC .OC 000 .oe 0 DC .OC .OC oOC .00 0004 2 009 
  003 .0. .OC .0 .0   0012 U .04 
 .0 .01 00 .0 .0. .0 .o~ 007 .022 1 011 
 00 .01 00 .0 .0. .0 00' 001 0010 1j 004 
 00/ .02 .0. . O. .0. .0 00. .00 0026 1c 019 
 00~ 003 .OE .1 02 .1/ 01 .08 .087 H 026 
 .O~ .02 .O~ OO~ 0 O~ . o. .OC .02 .039 1 .29 
001 .Olt .04 .o~ .lC .1 . 1 . DE .07 .054 2e .23 
oo~ . O~ .02 .0 .O~ .~~ . ~~ . OJ .00 .042 f~ 023 
 .OC .02 .OE .1. .0 . O. 00 .05 .033 018 
 00 .01 .0 .0 .oe .~~ .OC 001 .018 2C 010 
.0 .0 .01 .0 .0 .0 .0 .0 .01 .010 2~ .09 
00 00~ 002 .le .o~ . 1 ~ .0 003' .04 .045 2~ .15 
 .0 .02 . O. .0 .o~ .o~ .01 .03 .025   c
9 21 22 22 21 21 21 19 19  40  ~
.o~ .OC .04 .lC .U .2. .1 .1 ~ 008 ,087  .29 
      TABULATED WED.. SEPt 10, 1969 
            I
            "C~7

-------
.., ,'l,J
CONTINUOUS AIR MONITORING PROGRAM
Table 3-22
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALY51S
DE"JVER ,COLO.
NYTRIC OXIDE
OCT. 1968
DAY       A.M. ---.---        P.M.       DAILY NO. 5'MIN.
OF                        OF 
MONTH 12.1 '.2 2.3  3.4 4.5 5-6 6-7 7.8  8-9 q.IQ 1()'11 11.12 '2.' '-2 2-3 3.4 4-5 5.6 6-7 7.8 8.9 9.'0 10-11 11.12 MEAN HRS. MAX.
1 .0 .0 '~i  .O( .O( .03 '~i .0  .0 .0 .0 .03 .0 .0  .0' .0 .02 .0. .O( .0 .1 .0 .04 .031 t .16
2 .0 ,0 .0  .0. .0 .04 .0 .0  .0 .0. .0. .01 .0 .0.   .0 .03 .0. .0 .0 .0 .0 .01 .025 2 .10
3 .0e .o .o  .0 .0 .03 . 1 ~ .1  . I' .0/ .04 .03 .0 .0  .0 .0' .02 .~C .0 .0 .0 .0 .08 .047 2 .21
4 .f) .0 .0  .0 .0 .04 .1 .1  .0 .0 .O~ .03 .0 .0  .0 .0 .00 .0 .0 .0 .0 .0 .01 ,037 2 .19
511 .O~ .O~ . O~  .O~ .0' .00 .0 .o~  .O~ . O~ .O~ .01 .0' .0'  .01 .0 .02 .04 .0 .0 .1 .U .05 .033 2 .19
- -- --- -- - --.Oe ----.- ---- -- . '-- u- --.               
611 .0 .0' .0  .0 .01 .04 .0  .~: .0 .O( .00 .0 .0  .0 .0 .02 .0' .14  .04 .0 .02 .025 ~( .19
7 .04 .0 .1(  .1(  .16  .2  .0 .O.i  .02 .0 .O.i  .0' .0; .03 .0. .01 .04 .04 .0 .01 .055 .27
8 .0 .0 ,0  .0 .0 .03 '~E .0  .0. .~~ .0 .07 .0/ .~~   .14 .06 .0 .0. .0. .0 .0'  .041 2 .22
9 ,      .03 .n    .0 .0 .02 .0. .0  .0. .0< .02 .0 .0 .0' .04 .0: .02 .030 1./ .21
10 .02 .0 .0.  .01 .0 .06 .11  I    .06 .0' .0.  .01 .O! .05 .1. .1C .0: .0' . O' .04 .056 1 ~ .38
 1                
11 .0~ .0   .0 .o~   .2  '~i .OE .0 .01 .0 .0   .~~ .03 .~~ .o .0 .0 . \i .17 .050 1e .28
1211 . Hi . 1  .o~  .0. .O~ .06 .1 .0'  .0 .0  .0 .0  .0 .0 .03 .0 .1 < .2 .2 .0 .03 .073 2. .29
1311 .01 .0 .~C  .O~ .0' .00 .0 .~!  .0 .0 .0, .01 .0 . ~~   .0  .0 .0 .0 .0 . ~i .04 .031 '2 .11
14 .O~ .OC .0  .OC .0 .03 .O! .0  .0' .0 .O.i .02 .0. .04   .0      .0 .00 .017 1 .09
15 .09 .oc .or  .oe .oe .02 .0\    .O.i .0' .00 .O~ .0'  .0 .0 .01 .0 .O( .0 .oe .oe .00 .013 2 .14
       1-                     
16 .00 .oe .oe  .oe .01 .05 .1/ .}:    .0.  .~; .O~   .0' .04 .0 .0. .0' .0. .0: .02 .038 1~ .21
17 . 0 I! . 0 1 .01  .01 .01 .02 .11 .1    .04 .03 .0 .0  .0 .0 .03 .0 .0 .0 .0 .0 .02 .029 2 .22
18 .041 .o~ .03  .~C .o~ .07     .O~ .OE .04 .0 .O(   .~~ .08 .H .14  .0 .0 .09 .062 t: .24
19* .O~ .1. .1~ .1 .OR .12 .1 .q .111 I .o~ .02 . O~ .O(  ,0. .0        .079 .25
20* !     -I. ,... :){if1~ -:gt                
21 .Oo! .oe .oe  .oe   .0'   .~~ .03 " .0 .O( .O( . ~~ .04 .034 ~~ .33
 .o~ .04  .0'   .~~
22 .03' .01 .02  .O~ .05 .12 .06 .0'   .0 .02 .0 . o. .0 .0. .0 .01 .063 .41
23 .01 .01 .~:  .01 .01 .02 .1,.1,.0 .O~.O' .03 .0 .~~  .0. .OE .04 .~; .0< . O~ . O. .01 .02 .037 2~ .21
24 .03 .04 .0  .03 .031 .07 .1~.tO .O~ .O~ .0' .03 .o~ .0  .0E .ll .1 .2 . ~~ .OE .O~ .04 .081 2 .37
25 .031 .04 .02  .02 .04j .06 - .1~. ~2.:_~~1 ~1~L .O~ .03 .03 .02  . O' .OE .16 .2C .1" .0 .oe .O~ .07 .078 2 .2A
    ....1 . - ,              
2611 .05: .03 .02 .021 .02:  . II' . 12j . 2 . 0 ~ . 0 ( .02 .02 .01  .01 .~~ .02 .0' .?~ .011 .03 . O~ .03 .046 ~~ .26
27* .01: .01 .01 .01 .021 .05 .06 .06, .05 .02: .0. .01 .01 .01  .01 .0. .05 .1. .1 .0$.06 .O~ .09 .042 .22
28 .23 .03 .021 .021 .011 .02 .OE .11t .22 .151  .04 .0. .0   .oe .11 . t ~ .1' .1" . 0 .0 .04 .082 ~l .26
29 .051 .01 .03/ .02 .031 .04   i .09 .o~ .08 .O~ .01  .o~ .OE .10 . ~E .o~ .01 . O~ .O~ .03 .051 .13
30 .02: .05  ,.0' .041 .02 .OC .I~ .12 .08 .0, .01 .01 .02    .11 .0 .OE .0 .01 . oj .02 .046 2e .1!!
  I  .O~    1                   
31 .01; .01 .O~ .oe .00 .0   .O~ .02 .0. .02 .0 .0   .oe .09 .0. .0' . O. .0. .0 .05 .030 21 .10
MEAN .04i .03 .02  .02 .02 .04 .o~,. 13  .08 .0. .O~ .03 .02 .02  .O~ .0/ .05 .01 .0 . O~ .0' .0' .04 .045 62e 
NO. 29,12. 27  29 28 28 26 I 24 ,23 25 26 2'7 29 30  17 29 27 28 28 26 28 29 28  
MAX. .23 .1'7 .12  .10 .09 .16 .211 .341 .2~ .15 .08 .08 .OE .05  .OS .1/ .16 .2C .2 .2 .2 .1~.17 .082  .41
w
-.]
(; Indicates Saturday or Sunday
local standard time used
TABULATED
WEO.. SEPt 10, 1969
r

-------
CONTINUOUS AIR MONITORING PROGRAM
C,.,;)
cc
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Deparlment 01 Heallh. Educalion. and Wellare
Robert A. Tall Sanitary Engineering Center
Cincinnati, Ohio 45116
DAY
DF
MONTH
MEAN
NO.
MAX
--
12-1
2-3
3-4
1-2
4-5
~Q
3Q
4
5

6
7
8
9Q
10Q
11
12
13
14
15
.O~ .04
24J 25
.11 .1"!
.03, .03
24 i 24
I
.O~ .09
* Indicates Saturday or Sunday
local standard time used
Table 3-23
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
COLORIMETRIC ANALVSIS
A.M.
-- -- --
7-8 8.9 ~.10 10-11 11-12
16Q olei 00~ 00~ 002 00~ 006
IH 002 002 .0' 00~ 00~ 002
18 002 00~ 00~ 00~ 00~ 003
19 00~ 00~ 01~ 00~ .O~ 005

~--- ---~,J_-\-~-- +-
22 00 .O~.O .03 .04
23Q I:
24Q 011 01~ olQ .O~ 00~ 005
25 007 00~ 006 .0'11 .06 .07

26 001' 00~ .O~ .o~-~oi ~-o-i
27 007 0 q 00~ 003 .02 .03
28 .00 .O~ .00 oOa 000 .00
29 .06 .O~ .O~ 00~ 00~ 002
30Q 004 .04: 002 .02 .011 .02
i i II
i
:
.04 .0
25 J 24
. I, .08
oq~ 00~ .0& 00& .Of .09 .oe 0 H OO! 005
00. 00. 00. .0. 00 002 00 .1' 00 00 00 003
00 .0. 00' .~~ .0' .06 .0 .1 .01 .0 .0 .01
00 00 .0' 00' 00 004 .1 02 03c .0 .0 003
01. OO~ .0-i~-.~"":"0~--~(_00_-~~ ~!-~ .05

.0. 00 .O! 00 00 .01 003 00 001 00 .0 005
00 .0. .0 .0& .0& 001 OO~ 006 01 .04
.1 .OE .0 .0' 00~ 003 .OE .~~ .1~ .1 , .O~ .04
OO~ 00 .0 00 00 .02 .03 .O~ .O~ .IZ .O~ .03
002 00. .O~ oOC .09 .00 ooe .O~ 00~ '_~1_:_~t:~0

00~ 006 .06! 00~ oo~! 004 .0': 0 1~! 0 1~ :d :~11 :~;
001 001 00' .00 00' 001 002 olC .05
009 003 .O~ I I
I -r:or- 002
.,,~ .02 .021 .02 .02 002
.n~ 005. 00~ .O~ 00~
.O~ 02~ 03~ 01~ 00~ .03

~;to~ :Ill:o~ -.0-j---'--02-


.03 .05 .oto: .02
.11 029 .411
--_: -- __I ---- I
.08 .15 .1~ .01 .o~ 003
.o~ olU .1~ .10 00 010
.01' .01 .OQ .00 .01 .01
.03, .09 01~ .08 .06 .05
00~ .05 oOj .01 004 004

ii' i

.o~ '1~' 01 .O~ .04 .03
23 i 22 23 20 i 20 22
.n:.2 .4 .1tJ .08 .10
i: -I
5-6
6-7
12-1
1-2
.0& .0&
.0 .0.

.0 .0
.0' .0'

001 .0'
00/ .0
00 .0
.0 .0
003 .O~ .0,
oo~ .03
005
00~
.0 .0
.0' .01
00 .0,
.1e .1~!

.0 . .0
.oe 00

oq~ 00~
oOa 00"
.0 .01
000; 004
00"! .02
2-3
3-4
4-5
.O~ o~S 009
.0. .0. 006
oOE 00' 007
.0 .OE .07
.OE oOE .07

o O( 011
o U 016
o OE .07
00. .04
00 .03
.0
00
.0
004
.0 01 011
o lC 008
oOE .1. 013
.02 00 001
.01 00 .02
.08 01~ .13
o O~ .0 0 13
.00; .04
.02 .0 004
.01 .03 .02
I .0
.0
.0
.0.
00
.0'1 .14
015 .22
.0,' .03
.10
.0. .17
.0.0 .04.0 .08
23 21 1 21 24 26

.le .IC .02 .08 .11; 022
P.M.
5-6
6-7
7-8
9-10 10-11
8-9
o q. 00
. O. .0

.1 01

.0& .0

. O~ 00
.0 .0 00
.01 .0 00
00 .0 .0
.0 .0 .0
00 00. 00
.0 00~ 00
01~ .u .1
.OE .0& .O~
.0 .0: 00
.O~ .04 002
.0 00
.lE 02
.0 .0
.0 .0
.0
.0& . 14
00. 00
00~
.1 .1
.OE .O~ 00' .01
00. .O~ 002 .01
.0 .O~ 00~ .01
.le.1 olE .16
.0 .0. 00 00. 00 .02
.0 .0 00 .0. 00. .02
.1 02 .2 .2 004 002
.OQ 00! .0,.0 00~ .03


~ .0' .O~.o .ot:

.O~ .0 .O~.q 01~ .07
.oa.o .Ol .0' .O~ .01
.2C 02 .12 .O~ .01. .07
.18.0 00~ 00~ .O~ 001
.o~ .01.09.1 010 .07
.1 .0 .12 .06 .O~ .07
.1~.1 .21.2 .1l .12
I
I
.0;~1i .O~
26 26
.2 .2
00 .0
25 26
.20 02
i
.06 .05
25 I 25
.2~ .17
11-12
DAILY
MEAN
DE~VER.COLO.
NITRIC OXIDE
NOli. 1968
NO.
OF
HRS.
5-MIN.
MAX,
.86
. 7
.03
.07
002
.066
.035
0051
0072
.049
~
2
2
2
~U

016
043
014
001
.11
.05
002
0038
0091
.063
.029
.013
2C 014
IE .24
Z 025
-2 019
2 00'3
1
2
1
1
020
020
011
019
.047
.049
.041
.100
0029
.017
0079
.075
.057
.056
.061'
.069
.077
.025
.061
.018
.055
.100
Ie .18
Z 003
2e .30
23 .39
1~ 018
2 020
20 .50
2
2
2
2
2
026
026
015
018
033
~
54~
.50
TABULATED
WE~.. SEP. 10. 1969
I
.11,0 ~ C

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-24
Ai, Quality Section. laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engmeering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
h .~~ .q~ .O~ .O~ .Q~ .02 .0= .q~ .q~ .O~ .o~ .01
2 .0. .0, .0, .0. .O~ .07 .Ot ,.2' .2~.1 .1 .08
3 .0 .O( .OC .0 .~~ .01 .~~ .~~ .0 .0 .0 .01
4 .0..0 .O~ .0 .0. .00 .0, .0 .1 .01.0~ .02

: - ::~--:: - ::!'---:; --::-j- :::---::: ::~:~ ~~. -:oi :::

7* .o~ .o( .0 .O( .0 .00 .OC .0 .0~.0 .0 .06
8* .1~.0 .0 .01 .0 .11 .0' .04 .01t!.0 .0 .03
9 .0'3 .0' .0 .01 .0 .03 .o~ .O~ .O~ .1Q.0 .06
10 I! I .3~.2 .08

11 .02. .01 .O~ .0)(1 .~~ .02 .Olel~ .o! .O~ .O~ .Oj~ .01
12 .00 .O( .0q.O .0, .02 .0 .O! .O~ .O~.O .02

~:* :~g :~~ :o~~q :~~ :~~ :~~ :~~:~ :~~ :~~ :~11 :n
15* .19.lf.2 .le .1' .15 .1~.1 i .o~ .01 .o~ .02
, --1-.- t-+--
16 .13 .~~ .19 .1C .~: .2Z .3~ ill.11 .0< .oc
~~ :~~ :~o :~~ :~o :~~ :~; :~~ :~~ :~~ :~~ I .0' .o~
19 ,.O~ .011 .o~ .O~ .6~ .04 .0~.13 .O~ .1~ .1~ .05 .0' .O~

~-~~J~ .Oi~03- ~0_3_._~6.1~--'1~1. :_Ol~~-~~~ .o~
21* .06 .0,.0 .0 .O~ .03 .O~ .0l).0 .07, .0' .05 .0' .0'
22* .03.0 .021.0 I .011 .03 .tI~ .04.0 .o~ .O~ .03 .0 .01

~: I I ~ :';: .24 .04 .O( .O(
25 .17 .15, .1~ .19 .01 .00 .O~ .04 .O~ .O~ .0' .02 .0. .01

26 .00 .O~ .00, .oct~oz .-08 -;--:i9-.5~ ~9- .0' .06 .04 .0'
27 .01 .011 .011 .021 .01, .02 .O~ .09 I .13 .081 .03 .04 .0
28* I Ii! I
29* .10 .05' '.011 .02 i i .03 .0' .04 .04 .0' .06
30 .03; .O~ .Oi .01 .n,: .05 .03: .10 .1~ .07; .O~ .06 .01 .08 .0 .0\ .0'5

31 .10 .161 .16:.0 .07, .11 .21' .371 I .08.0 .06 .oc .04 .0' .24 .24
: : . Ii'
.06, .051.041 .O~ .O~ .111 .121 .09, .O~ .05
27 ! 26 27 i 26 25: 2" I 23 ~i 27 , 24 I 26
.231 .291 .30! .21 .22!. 37 .50, .39i .271 .11
DAY
OF
MONTH
A.M,
7~8---;-9l' q-IO. 10-11 11-12
12-1
'-2
2-3
3-4
4-5
5-6
6-7
w
~
MEAN
.06 .06
26 27
. 301 . 2 '5
NO.
MAX.
* Indicates Saturday or Sunday
Local standard tIme used
12-1
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0'
.01)( .OC)(
.0 .0
. O~ .0
.0' . 1 C
.0' .01
'-2
.~:
.0
.0.
.0
.o~
.~.
.0
. o.
.0'
2-3
3-4
4-5
.0
.0
.0
.0
.0
P.M.
5-6
6-7
8.9
9-10 10-11
11.12
lot . j ,
DENVER,COLO.
NITRIC OXIDE
DEC. 1968
DAILY
MEAN
NO.
OF
HRS.
5.MIN.
MAX.
7-8
.0 .03 .0 .0 .0< .0 .0 .02 .028 2 .11
.0 .OA .0 .0 .0 .04 .0 .0'5 .059 2 .24
.0 .11 .0 .0. .0 .O( .O( .01 .025 2 .16
.0 .09 .0 .0 .0 .0. .0 .01 .026 2 .20
.1( .18 .1' .1 .0< .1<.0 .02 .061 2 .23
--------- --
.O! .08 .0 .0 .0. .0 .0,1 .01 .039 Z .19
.0 .09 .oc .0IjJ .oc .1. .1i! .15 .048 2 .16
.0 .03 .0 .05 .0< .0' .O~ .05 .046 Z .15
.059 "1~ .13
.1 .Z9 .zc .11 .0 .0' .o~ .01 .147 1 .46
.0'
.01
.0
.0'
.1(
.0
. O. .04
.0 .01
.01 .11
.Oc .14
. O. .02
.0'
.0/
.0
I .0
.O~
.01
.~~ .Z2
.0' .10
. O~ .08
.1~ .20
.1 .10
.O~ .O~ .05
.0. .0' .04
.1. .1 .14
. O. .08

.o~ .1' .19
.05
.O~ .0 .O~ .08 .10
27 27 1 24 28 27
.09 .10 .0" .12 .2" .29
.0,)(" .~: .0 .0' .01 .00
.0 .0\ .O( .O( .01 .01
.01 .Oc .1( .01 .0' .26
.11 .11 .Z .41 .4' .29
.0. .le .01 .O~ .1' .16

.le .1.~ .Z~ .Z~.2 .20
.O~ .0. .o~.o .0 .00
.O~ .0 .15.to.1
.1".1 .O~ .0~.1 .13
.01 .O~ .O~ .0' .0 .08

.~~ .0 .01t.0 .0 .03
.0. .0 .ld .0' .01 .15

.1~.1 .1~ .23
.1~.1 .O~ .01

.1( .0 .06.0 .02 .oz
I ;

.O! .0' .o~ .o~ .02: .01
.0' .o~ .02: .O~ .03 .07

.1 ~ 1< .01 .od .O~ .05

.0 .08.0 .08 .O~I .08
27 27 27 27 Z7 2"
.Z9 .22 ,29 .46 .44; .29
.O~ .2.
.01 .01
.023
.006
.056
.196
.097
Z .09
2; .24
. Z .28
2 .50
2' .28
.163
.132
.049
.084
.068
If .48
le .42
~~ .18
2' .23
2' .21
f---
2 ~ .09
2 .19
.044
.045
.134
.065
1~ .33
Z. .24
.092
.039
Z~ .68
1~ .21

U .IZ
2; .26
.038
.052
.120
2. .58
.068
605
TABULATED
WED.. SEP. 10. 1969
.196
.68

-------
(eO,iTINUOUS illRMcONITORING PROGRAM
"Table 3-25
..",
o
Air Quality Section, laboratory 01 Engineering and Physical Sciences
~ivision 01 Air Pollution, Public Health Service
Uc Sc Department 01 Health, Education, and Welfare
HOURLY AVERAGES Of c
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Dhio 45226
DAY
OF
MONTH
MEAN
NO.
MAX.
12-1
'.2
2-3
3.4
1
2
3
4
5
A.M.
4.5
5c6
Bc9
q.10 10.11 11-12
.0' .0 .0 .0 .o;! .02 .0: .O~ .O~ .0: .04 .03
.OE .0 .0 .0 .O~ .ll .~: . (IE .oe .1: .1 .06
.01 ..01 .0' .0' .Oe .04 .0 .OE .OE .OE .OE .07
.0' .0' .0' .0' .O~ .05 .0. .OE .0 .O~ . O~ .05
     - -I-. -    
.0 .0 .0 .0 .~~ .02 .~j .~E .0 .0 .0' .06
.0 .0 .0 .0 .0 .08 .0 .0 .O~ .1. . 1 ~ .11
.1 .1 .11 .lI .~~ .06 .0' .OE .OE .0 I .OE .07
.0 .0/ .0/ .01 .0 .06 .0/ . ClE .OE .OE .oe .06
.19 .01 .0' .01 .O~ .ll .oe     
"i" . 1 .1 .1 .10 .01 . !'Ie  .0 .O~ .05 .03
.0 .0' .0' .04 .o~ .04 .oe     .08
.0 .01 .0' .0/ .O~ .06 . ~~ .OE .OE .0 .1' .13
.0 .0' .01 .01 .O~ .04 .0 .~: .O~ .0' .04 .03
.0 .0' .0/ .01 .oe .05 .0' .0 .01 .O! .oe .08
611
711
8
9
10

11
1Z
1311
1411
15
16
11
18
19
2011

2111
2;l
23
24
25
.u .01 .01 .OE .O~ .05
.0' .0' .Og .0' .0. .05
.0 00 .03 .0. c.O. .O~
.O~ ooc .O~ .0. .0' .04

o O~ 00~ .0 1j-ill0 -~ ~i- 00.4

00~.0 .0 .01
.O~ .O~ .O~ .0 .0 .02
001! .01 .01 .Ot .011 .Ot
00~ .01 .01 .01 .01 .01
.O~ 00. .O;! .O;! .~:~_2

00~ .01 .O~ .oe .oq
oOZ .O~ .O~ .O~ .021
00~ 00' .O~ .0' .O~
00~ oo~ .0' .0' .01!
.O~ .0/ .0/ .0/ .oel
I
.0. .O~ .O~ .0. .0' .O~

.0' 00' .oe .0' .0' .04
30 30 30 30 30 30
.1< .1. .1' .11 .11 .11
26
HI1
2811
29
30
31
* Indicates Saturday or Sunday
Local standard time used
6c7
7-B
.0' .OE .0 .OE 00~ .07
. O~ .oe
.0 .0lci
.0 I I I
.Oi .04 .0tO .031

~ .o-j-;o- .0J
.0 .O~ :o~ .O~.
.0 .Oz .01 .O~
.O~ 001: .0. 00~
.~' _:~_.O: ..~

.01 .oe .O~ -I
.02 .0, .o~.o .031 .0' .06
.03 .01 .o~ .0' .O~ .0' .02
.02 .0 .04, , 00.4
.05 .0' .06 .01 .11 .11 .12
.04 .0'
.0' .02
.O~ .03
. O~ .04

.0. 002
.0: .04
.0' .01
.0 .03
.0' .05
.04 .04 .0' .01 .0/ .05
30 27 22 22 24 27
.O~ .01 .O~ .1~ .11 .13
CONCENTRATION IN PPM
COLORtMETRIC ANALYSIS
DENVER.COLO.
NITROGEN DIOXIDE
JAN. 1968
P.M.
NOc
OF
HRS.
DAILY
MEAN
S.MIN,
MAX.
12-1
1.2
8.9
9.10 10-11 11.12
2-3
3-4
5-6
6-7
7.B
4-5
.04
.O~ .O~  .O~ .05 .0' .O! .0' .OE .01 .06 .042 2, .08 
.0 .OE  .01 .04 .0 .~: .0. .0 .0 .06 .066 2 .16 
ole .O~  .1 .05 .0' 00 .OE . O~ .0 .05 .060 2 .13 
.O~ .O~  .0' .06 ,.OE 00' .0 .0: .0 .03 .049 2. .12 
.O~ .0,  .0' .05 .0/ . ~~ .OE ooe oOE .07 0043 2 .11 
.1 .1  .le .10 .01 01 .Ii 01 .Ii .11 .097 2. .15 
o~, .~~  .0 .08 .O! .~: .0 .~e 0 ~~ .06 0074 2 .13 
.0 .0  00 .08 .0 .0 .oe .0 .0 .08 .06c5 2 .10 
02e .2e  .1' .15 01 .u .oe . O~ ole .11 0117 1 .39 
00 .0'  .04 .04 .~i .~: .~: .04 o~: .04 .063 f: .13 
.0' .o~ .0 .01 .08 .0 .0 .0 .0 .0 .06 .060 .10 
.1 . ~~  .2' .17 .11 .1' .01 .OE .0/ .05 0094 c2, .26 
.OE .0 .0 .0' 006 .01 .01 .O! .04 .04 .05 0049 2 .11 
.0 .0  .oe .15 .oe .1 .1, 001 ooe .11 0076 2 018 
.0 . \~  .1 013 .14 .1 .1. .1 .0 .06 0084 2, 015 
 .0  .0 .03 .0 .0 .0 .04 .0' 003 .039 1 006 
.0 .0  .0 .05 .0/ o~: .0' .0' .0' .04 .039 21 .07 
.0. .0'  .O! .07 .0/ .0 .01 004 .0: .03 .047 II 010 
.04 .04  .0 .05 .O! .0/ .0' .0 .0' .03 0033 2. .06 
.0' . ~~ .O~ . O~ .06 .0' .0/ .0' oOE .0/ .04 .032 2 .07 
oO~ .0  .04 .04 .0' . O. .0. . O~ .0 .01 0028 2. .05 
.0' .0:  00! .06 .0 .01 .0 .0 00 .01 0025 2 011 
.04   .0' .09 .04 .0 .0 00 .0. .02 0023 2 005 
.oe .0  .0 .02 .0 .0 .0 00 .0 .01 0022 2. 005 
   .0 .03 .~j .0 .0. .0 .0. .02 0014 ~! .05 
.04 .0:  00 .03 .0 .0 .0 .0 .0 .04 .030 2~ .07 
.0 .0 .0 .0, .04 .0' 00' .0' oOj .~: .02 .035 fi .07 
.04 .0  .04 .04 .O! .0 .0' .OJ .0 .05 .033 .05 
~Ol .04  .0' .07 .0' .01 .01 0 OJ .0 .03 .070 2. .22 
.0 .0'  .0' .05 .0' .0 .0. .0. .0 .03 .030 Ie .06 ~
.0/ .0'  .0 .07 .OE .OE . O~ .0' .0' .05. .051   c
29 28 4 30 30 30 30 30 30 30 30  63.  a
.2' .2e .01 .2' .17 .lE . l' .1. .1 .1. .11 .117  .38 
              .
        TABULATED WED.. SEP. 10. 1969 
              I
              ('11 0,'7 .,

-------
"t.: I
CONTINUOUS AIR MONITORING PROGRAM
Tobie 3-26
Air Quality Section,laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department of Health. [ducation. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Dhio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DF.:IIIVER.COLO.
NITROGEN DIOXIDE
FEB. 1968
~
'""""
DAY          A.M.  --,--- --         P,M.         DAILY NO. S'MIN,
OF                               OF 
MONTH 12.1   1-2 2-3  3.4 4.5  5-6 6-7  7-8  8-9  q.l0  1().11 11-12 12.1 '-2 2-3 3-4 4.5 5-6 6-7 7-8 8.9  9-10 10.11  11-12 MEAN HRS MAX.
1 .04   .0 .0  .0 .0  .O! .0  .0  .0  .0  .0 .02 .0 .0   .0 .04 .0 .0 .0  .0 .0  .05 .028 2 .05
2 .04   .0 .0.  .0 .0.  .0 .0  .04  .0  .0  .0 .05 .0 .0   .0/ .06 .0 .0' .0  .0 .0  .04 .040 2. .08
3* .O!   .~: .04  .04 .04  .04 .0'  .Oe  .04  .04  .0' .06 .0 .0   .0 .04 .~: .~: .0  .0 .0  .03 .045 ~. .08
411 .04   .0 .04  .04 .0  .03 .0  .0.  .0  .0  .0 .03 .0 .0   .0. .03 .0 .0 .0  .0 .0  .04 .035 2 .06
5 .0   .0 .0  .0 .0  .03 .0  .04  .0/  .0  .01 .05 .04 .0.   .0 .07 .0 .0 .0  .0 .0  .07 .052 2. .10
 u_.  --    ~-~ -- 1---'  --.. --  .- .-- _.~ .--. --            1- 1-.   
6 .01   .0 . O~  .0/  .05 .0/  .~!       .03 .0 .0   .0. .05 .0' .04 .0'  .0' .0'  .03 .047 11 .OA
7 .04   .04 .04  .04 .0.  .03 .0  .0  .0  .0  .0 .05 .0 .0   .0 .05 .0 .0' .0  .0 .0  .06 .052 2 .09
8 .O!   .04 .04  .04 .O~  .05 .O~  .05  .O~  .OE  .O .06 .0. .O~    .04 .0 .0' . O.  . O. .O!  .05 .047 2 .07
9 .04.04 .O!  .0' .04  .04 .O~  .0'   .OE  .O .10 .1( .O~   .0' .06 .0/ .0/ .0/  .0 . O.  .05 .056 2c .13
lOll .04.04 .04  .0 .0  .04 .03  .M  .05  .0' .04 .0 .0   .0, .03 .04 .0' .O!  .0. .0  .03 .037 2, .06
  i              
11* .O~  .04 .04  .04 .0  .03 .03  .03  .0  .03  .0 .03 .0. .0.  .0. .0. .03 .04 .04 .04  .04 . O.  .02 .030 2 .05
12  I         ~                        
13  I                                
14  I                                
15  :                                
 I                                
16  I         I                       
1711  I          I     !                   
1811        I                         
19  I        I  I  I  I            I       
20  i   i   -~_._-   -1--               I       
        -- ----_.  - ._u ..                    
21   '                             
22  :         I                       
23         I       j                   
2411             ,                     
25*        d. .--.. -~--j--                    
   i                        
26   I .05 .O~ .04 .041 .05 .O~ .O~ .~~  -.O~.le   .O~   .05 .06 . ~~ . ~~ . O~  .05 .O~ .05 .056 1~ .11
27 .05, .05 .06 .06 .051 .05 .05 .05,.0  .0 .O~ .03 .O~ .O~   .O~ .05 .0 .0 .O~ . O' .O~ .02 .045 22 .06
28 .03! .02 .021 .03 .041 .05 .0 .06'    I .O~ .06 .O~ .0'   .OE .05 .~~ .03 .03 .0 '0"i .04 .038 2C .07
29 .0it! .O~ .03, .03 .041 .03 .0 I    I       .O~ .04 .0 .05 .O~  .04 .O~ .04 .038 15 .05
   1   I     I                  I    
  j   I   I                         
    I    I '                      
    I   I                       
MEAN   I        15113                   151   31 
NO. 14 B/15 15  15 15  15  11  1Z  13 13 13 14  1 14 15 15 15 15  15 15  
MAX. .08 .07 .07 .06 .0'1 .05 .O~ .07 .07 .01  .1C .10 .1C .01  . O. .0 .07 .0 .0 .oe  .oe .01, .07 .056  .13
       f   
* Indicates Saturday or Sunday
Local standard time used
TA8ULATEO
WED.. SEPt 10. 1969
I"

-------
Tobie 3-27
CONTINUOUS AIR MONITORING PROGRAM
~
N
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Se~ice
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASIEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DENVER,COlO.
NITROGEN DIOXIDE
"1ARCIo4 1968
DAY       A.M.           P.M.       DAILY NO. S.MIN,
OF                           OF 
MONTH 12-1  1.2 2.3 3.4 4.5 5.6 6-7 7.8 8.9 8.10 10.11 11-12 12-1 1.2 2.3 3.4 4-5 5.6 6.7 7.8 8-9 9-10 10-11 11.12 MEAN HRS. MAX.
1 00~  0 o~ 0 o~ 0 o~ o~i 003 00' 00 00' 00' 00' 004 00 00   00 004 0 ~~ 00 00' .0' 00' 004 .040 2 .06
211 0 o~  00 00 00 00 003 00' .0, 00 00 ooe 000 ooe .O(  00( 00( 000 00 00 00( 00( ooe 000 0012 2 .04
311 00  00 00. 00 00 000 00 ooe 0 ~~ ooe ooe 000 ooe 00(   00 002 0 o~ 00 00' .0 00 002 0012 2 008
4 00  00 00. 00 00 002 00 00 00 00'   00 00. 00,  00 005 0 O~ 00 00' .0' 00' 004 0030 2 .05
5 0 O.  00 00 00' 00 002 00 00' 00' 00/ 0 o~ 004 00 00   00~ 005 00~ 00' 0 O' . o~ 0 O' 005 0039 2. 006
- --     -- j-- -- 1--- -- --                 
6 00~  0 O~ 0 O~ 00' 00' 004 00' oOj    008 oOj 00/   00 007 00 00' 00' . OJ 00 006 0055 l' 010
7 0 O~  00; 0 O~ 0 O~ 00' 005 oOj 00 01 01 01 008 oOj 00   00 004 00' 00' 00 0 o. 00, 003 0055 2 014
8 00:  00, 00' 00. 00 004 00! oOj oOj 0 O. 00 002 00, 00   00 005 00 00 00' 00 QO 004 0035 ~' 008
911 00/  00/ 00/ 0 O~ 00' 005 00 00 00' 00' 00 003 00' 00   00 004 00 00 00 .0 00 003 0038 -2 006
lOll 00.;  00; 00, 00: 00: 003 00' 00. 00. 00 00' 002 00. 00'   00 002 00 00 00 .0 00 002 0022 2 003
11 00. 00: 00 00 00' 003 004 00 004 001 00   00   00 003 00 00 00 00 00 003 0029 2 007
12 00 00. 00 00" 00 003 00 00 00 00 00;  00 00  00~ 00 001 00 00 oOC oOC oOC 000 0021 2 007
13 oOC oOC ooe ooe oO~ 000 oOC       00   00 007 ooe oOe 00 00' 0 O. 005 0034 .1/ 010
14 00~ 00:\ OO~ 00: 00' 001 00 00. 0 O~ 00  002 00. 00.  00: 00 002 00 00 00 00 00~ 004 0029 2 006
15 001 .03 002 003 003 003 00 00~ OO~ 00 00. 001 00 00'  003 00 004 00' 00' 00. 00. 00~ 004 0034 2 008
1611 00~ 00 ,., '.; ,.< ,.' 00,:\ 00~ 00 o~; oOE 012 oOE 00~  00 00 001 001 00. 0 O~ 00/ 00~ 005 0049 2 013
IN 00~ 00~ 003 00 00, 002 00~ 0031 oOil 00 00' 001 00' 00  00' 00 002 00, 00 00. 00. 00 001 0020 2 006
18 00 00 oo~ 00 00. 004 00 ood 00/ oo~ 00, 002 00, 00.  00" 00 003 00 004 00'0 00 00, 002 0028 2 oOy
19 0~1 00, 00~ 00 00~ 002 00~ 00~ 00~ J   00 00.  00. 00 003 00 00 00' 00, 00 001 0022 2( 004
20 00 00, 001 001 001 001 ,0 ," '01'0' 002 ooi 00;   00~ 003 00 00, 00 00 00, 003 0023 2 005
  I    . - --- - ~... l- .                
21                      
22                      
2311  i 00~                    
2411  0 O~ 00~ 00~ 004      001 .0' 00'  ooe 00 001 00 00. 00 0 O~ 0 O~ 004 0026 2 005
25 00~ 003 001 002 002 003 ~-~- 00    oOC  001 00, 003 00, 00 00 00: 00, 002 0028 Ie 009
26 0 ~~ 0 ~2 001 ooe 001 .01 ,O~ ,O~ ,0 00.  00, 0 ~~  001 o~. 002 o~' 00. 00. 0 ~i o~. 002 0016 2 003
27 0 O~ 001 003 001 002 003 00 00 I      00;   00 004 00~ 00' 0 O~ 00 00 005 .033 1 006
28 0041 0010 00~ 00" 00!! 004 00 00~ o~~. 00~ 002 00, 00'  00. 00 003 003 o~i 00, 00, 0010 004 0033 2. 010
29 00  0010 003 003 003 003 00 00/ 00 00 002 .0, 00.  00 00' 005 00~ 00 00/ 0 O~ 0 O~ 004 0037 2 009
3011 004  003 003 002 002 003 .03 00) 005 004 00:! 003 00,     003 003 0 O. 00, 00, 001 001 0027 2( .06
31!1 001 001 001 oOC oOC 001 001 00' 00 00 00' 001 00 00'  00: 00: 002 00. 00' 00' 00 .0 .02 .016 2 .05
MEAN .0:  00: .0: 00. .O~ .0' .0: oo~ 00' .O~ .0; 003 .0' 00,   .0: .03 00: 00 .0 .0 00' 00' .030  
NO. 27  28 28 28 28 28 28 2!5 22 21t 21 20 24 27 1 14 27 28 28 28 28 28 28 28  59/ 
MAX. .0/  .O~ 00/ 00~ 00~ .05 .0/ .0 01 .1 01: 012 .01 .O~ .0, 00. .0 007 0 O~ 00' 00 oOj .0 006 .055  .14
* Indicates Saturday or Sunday
local standard time used
TABULATED
WED.. SEPt 10. 1969
.
I
Jl07')

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-28
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U, S. Department 01 Health, Educalion, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DAY
DF
MONTH
~
""
MEAN
NO.
MAX.
A,M.
12-1
'.2
2.3
3.4
5.6
4.5
6.7
7.8
8.9
9.10 10-1 I 11-12
!
3
4
5
0'
:6; .0'
.0
.1 .1 .08
.OJ .6i .03
.0 .0 .02
6*
7*
8
9
10
.0' .0' .0 .06 .0' .O~ .0
.0 .0 .0 .03 .0 .oe .0'
.0 .0 .0 .00 .0 . o. .0
.04 .0 .0 .0 .04 .0 .04
.O( .O( 'Oij .O( .0 ~O~ .0 ._.__.~-- .08

.0: .0 .0 .0 .O~ .02 .0. .0. .0 .0 .0 .01
.0- .0' .0 .OC .0 .00 .OC .OC .OC .OC .OC .00
.0. .04 .0 .O~ .O~ .07 .0 .0 .O~ .04 .0 .04

: I .Of .02

.0' .O( .O( .0' .0' .0'
.01 .O~ .0. .0' .03 .04
.0 .0' .O~ .O~ .03 .0
.0 .0 .0' .0 .02 .0
.0' .O~ .O(
11
12
13*
14*
15
.O~
.O~
.051
.O~
.O~
! j i
.03; :~~ :~~ :~~ .02 :~~ :g~ :g~ .M .O~ .0' :g~
.03! .03 .O~ .O( .04 .04 .041 .O~ .O~ .O~ .04 .04

.O~~ '07~ .02 _~~~1.- ,.O_~ -'~t"O'~.- ~O~. -~_O~~.; .0, .02
.05 .0' .0 .04 .0 .04 .0 .03.0 .041 .04 .04
.02 .02.0 .0' .02 .02 .O~ .03!.0 .04i .0' .03
.03 .03.0 .03 .031 .02 .0 .03.0 .04oi .03
.05. .O~ .03 .0 .021 .02 .0 .05 ;
.03; .01 .02 .0, '~j- .0.3. _..Ot~.05~-d.'0~ .0, .02

.00 .OC .oq .OC .00: .00 .o~ .01: .O~ .OZ: .O~ .03
.05 .041 .0"1 .02 .011 .01 .0 .04' .O~ .03: .O~ .02
.O~ '031'0~ .O~ .041; .03 .0 .02 .02 .02i .01 .01
.02 .02 .O~ .03 .03 .04 .0 .07.0 .o~ .01 .03
.02, .01 .011 .01 .01 .03 .0' : I 'I

i I
.04i .03 .03 .03 .02 .03 .03! .04 .04 .04r.0 .03
25125 27 27 25.126 26 I 24 21 21.119 24
.07 .07 .07 .06 .06, .07 .071.07.11 .141.11 .08
.05
. O~ . O'

. .~~ .0.
.0.. .0'

.11
.~~ .0. .03
.0.. .0. .01
. o iii .03
16
17
18
19
20*
21.
22
23
24
25
26
27.
28.
29
30
* Indicates Saturday or Sunday
Local standard time used
12-1
'.2
.0' .0
.0 .0
.0 .0
.0
.04 .0
.0
.OC .OC
.0. .0'
.0; .0;
.03
.04 .04
.0 . O~
.04 .02
.0 .0
.0 .0;
. ~~ .0
.04 .0
.0. .0.
.0' .0.
.0 .0
.0 .03
.0 .0
.03 .O~

. ~~ .02
.0, .O(
.01 .01
.03 .O(
.O~
.03 .03
24 27
.06 .07
2.3
3.4
4.5
.0' .05
.0' .0. .05

.04 .0 .03
.0' .05

.O( .04
.0
.OC .0
.0 .0
.O~ .0' .05

.0' .06
.0 .04
.0. .0 .03
.O~ .O~ .02
.03
.O( .o( .04
.0. .05
.O( .0. .05
.0. .O~ .03

.0' .O~ .03
.0' .0 .02
.o~ .O~ .05
.03 .O~ .04
.03 .04 .04
.O~.O .03
.0. .0. .04
.0. .0. .02
.0' .03
.0' .0/ .03
.03 .O~ .04
19 27 28
.05 .05 .06
P.M.
5.6
6.7
.0' .0'
.0 .Oi
.04 . 0 ~
.O( .0
.01
.01
.05
. ~~ .0
.0 .0
.O! .OJ
7.8
8.9
"t.
DENVER.CDLO.
NITROGEN DIOXIDE
APRIL 1968
9.10 10-11 11-12
.0' .05
.0 .02
.04
.0 .04
. O' .04
.01 .01 .01 .00
.0 .0 .0 .01
.01 .0 .0 .05
.O~ .Oil .0.
.0' .0. .O!
.0' .O~ .0
.0; .O~ .01

I
. O~ .0
. O~ .0
. O~ . O~
.0, .O!
.O~ .OC
.~: .0
.0 .0
.0 .0
.0 .0
.04 .04
TABULATED
.0' .O~ .Of .01 .Of .01
.0/ .O! .05
.0/ .O! .05
.O~ .O~ .03
.0 .0 .07
.O~ .02 .05
.02 .0. .02
.0' .0' .04
.04 .0' .07
.01 .O! .04
.0' .02
.0 .03
.O! .05
. O~ .05
.OC .00
.. '. - I
.0 .0- .O~ .0' .O~ .05
.04 .0 .O~ .O~ .O~ .03
.~~ .~: .O~ .01'1 .O~ .02
.0 .0 .01, .O~ .oi .03
.0 .0' .01 .06 .O~ .05
I
I

.0 .04 .O~ .O~ .O~ .04
27 27 27 28 27: 28
.06 .06 .07 .07 .oi .07
DAILY
MEAN
.052
.039
.020
.037
.046
.014
.006
.048

.049
.046
.042
.030
.033
.040
.022
.040
.039
.O'H
.033
.025
.036
.036
.024
.021
.031
.029
.038
.035
.033
.052
NO,
OF
HRS
S'MIN,
MAX.
.OJ .O~ .q!
.0/ .0. .0-
.0 .0 .O~
.0 .O( .O~
.02 .Oc
.0' .~~
.0. .0
. O~ .0'
. O~ .04
.0 .0.
2 .12
2 .13
1 c .04
H .06
Ie .15
2
2
2
.04
.0"
.08
-
1
.10
Ie .08
1 .07
'2 .06
2 .07
P .13
1 E .04
~. .07
2~ .01
2; .08

2' .06
2 .04
2. .07
1 C .06
2 .05
2 .05
2' .05

2 .06
2~ .01

1 .08
57C;
.1'5
WED.. sEP. 10. 1969
r'-

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-29
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Weltare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
~
~
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
Robert A. Tatt Sanitary Engineering Center
Cincinnati. Ohio 45116
DAY
OF
MONTH
A.M
-----.--
7.8 8-9 q.IQ 10-11 11.12
12-1
1-2
2-3
3.4
5-6
4-5
6-7
12-1
'-2
2-3
3-4
4-5
1 00~ oO~ 00 00 oq~ 004 00~ 00~ oOE 00;/ oq~ 002 00 o~~ 00 00~ 002
2 00 00 00 00 00~ 004 .O~ 00 00 OO]j 009 004 00 000 oo~ OO~ 003
3 .0 00 00 00 001 .03 .O~ .0 .~~ 00 00 .02 00 00. OO~ OO~ .04
4a 00~ .O~ 00' 000 .O~ .04 .O~ .O~ .0. 00 00 003 00 00. 002
5a 00~ 00 00 .0. 00 002 00~ .o~ .03 .O~ .0' 002 00. 00 .0. 00.

---------------- .-- -----
6 00: o~~ 00 00. 00 .04 00~ oo~ 00 002 o~. 00. 00~ 00' 003
7 0021 00 oOC oOC 00 001 oo~ 00~ oo~ .01 00 002 00. 00. 00~ 003
8 o0t,! 00~ 00' 00~ 00' 005 00. 004 00 00. 001
9 oOU 00 oOC oOC 00 002 oO~ oo~ 00 00. 00! 004 00 00' 00/ 00/ 004
10 00~ 00 00 00. 00 00'3 00~ I 002 00 00 00. 001

U~ ~g~ ~g ~g~ ~g~ ~gl :g~ ~g~ :gJ -:g'Jf-:f1-:gj ~g~ ~g 00. :g 00. 002

13 oOQ ooe 00~ 009 ooe 00" 00 001
14 00~ OO~ o~~ ooe .O~ 005 00 00 .0..0 .O~ 002 00 00. 00 .03
15 00~ 00 00, 00" 00 0~2 _~1 -1- --~ 002 00. 00~ oo~ 00 003

16 0021 oO~ 00~ 00 0011 .02 .O~ .O~ 00 . 00~ 00~ 003 00 00' 00 004
17 00~ oO~ 00~ 00~ 00~ 004 00~ 005 00~ 00~ .O~ 002 00 oOj 00 00 .02
18!! 002 o~~ 002 002 0011 002 00~ 00~ 00~ 00~ 00~ 002 00~ 00~, 00 002
19!! 00~ 00: 00~ 00~ 003, 003 00~ I I 00~ OOJ 001 .O! 00~ 00 00 001
20 - 0~~1 oO~oO~-~-~-j 00~ 002 oOj oOi 003~ 00~ ~~- _~04 .:....0 ~.~ 00' 003

21 005 OO~ 00~ OO~ 004 004 005, 002 00 000 00 0011 00. o~. 001
22 001 001 0011 00~ 001! 002 ! 00 005 00~ 002 00 00~ 00 00~ 002
23 002 001 0011 001 0011 002 .03 I ! 00 004 .0 00~ 00 0021 .01
24 001' ooe 00~ 00 I ooq 001 003, 0"3 00~ 005: 00 002 00~ 00~ .04 003 003
25a 0061 005 00't0~21 o OJ, 0_05 ~~ .0_3; o~~ ~~~-~O~ oOtO 00~ 00 .O~ 002

26!! 00~ 00'1 00~ 001 001! 002 ooi 00~ 00 . 0011 001 001 001 00~ 00. 00~ 002
27 001, 001 00~ oOlj oOlj .03 00~ 0041 .0 I 00~ 00. .02 00. oOlj 00 00 002
28 001o! OO~ 003 OO~ 003' 003 .O~ 008 009 .O~ 00~ 004 00 0021 00 00 002
29 0010: OO~ 0011 001 00~ 003 00~ I j I 00' 003 00 00411 00 OO~ 004
30 004! 003 002j 002 0011 001 002 0011 oOJ 001 001 001 001 001 .01 001 001

31 .011 00. 00.. 00 002j .03 oo~ oo~ 00:: .0' 00~' 002 .0. 00 OO~ 002

MEAN .o~ 00: 00. 00. .0. .03 .O~I OO~ OO~ .O~ 00 002 .~, 00 .0 .0' .02
NO :J~.I 31 :!II 31 31 30 28 22 22 24 I 27 29 30 26 1 24 30 29
MAX. .0, 005 00! OO~ OO~ .05 .o~ .O~ oo~ .o~ 00' 004 .04 .0' .0' .O~, ooe .04

'" Indicates Saturday or Sunday
local standard time used
5-6
P.M.
6-7
7-8
8-9
9-10 10-11
.0 oq; .q~ .0 00 .03
.0 .0. .0 .0 00 .02
00 00! OO~ .0 00 004
.0 00 00~ .04 00 002
OO~ 00~ 004 00 004 002
    - 
00~ 00 00 .0 00 001
00: 00 00' oOE oOE 004
00 00 00, 00 00 001
o O~ 00 00 .0' 00 004
00 00 00 00 00 001
00.  00 .0 00 002
   00 
00 00 00 . O. 0 O. 002
.0 .04 0 O~ . O~ 0 o~ 002
.0 00. 00. . o. 0 O. 003
.0' 00 00' .0'
00 00. 00, 00
00 .0. 00. 00.
00 00'1 00~ .0
00 .03 00, .O!

001 .0. 00~ .O~
00. .0. 0021 .0
.01 .~~. 00~ .0
004 00 00~ 00~
.0. .0 .O~ .03

00~ OO~ 005, OO~
.0. .0 .O~.O
00~ 00 001f .0'
00 00~ 00~ .O~
.0 OO~ .011 OO~

00'. 003 0 O~ .0
.0. .0 .0, .0, .0
30 29 30 30 31
00' 00' .O~ .oe .01
TABULATED
o O~ 004
00' 002
00 003
002j 001
00~ 004

.0~;1 .01
00 002
00 .01
00~ 006
00" 005

O~ 02
: 041 : 04
o O~ 003
o O~ 005
002 001
I
00 001
DENVER. COLO.
NITROGEN DIOXIOE
"IAV 1968
11.12
DAILY NO. 5-MIN.
MEAN OF MAX.
HRS.
0038 ~; 011
0035 008
0028 2 006
0033 2 007
0029 2. 001
0028 2 006
0024 2, 006
0029 1 006
0033 '2 001
0022 11 005
0016 ~: 004
0026 004
0010 . 14 003
0037 2 009
0022 11 004
0032 2 005
0030 2 006
0022 2. 004
0017 2 004
0032 2. 006
0023 21 006
0022 2 005
0017 2C .04
0029 2 .06
0037 2 006
0022 2 006
0025 2 004
.039 2 011
.033 2C 00'3
0016 2~ .05
.023 2. 006
.027  
 65 
.039  .11
~


.
.03
30
.06
WEO.. SEP. 10. 1969
r
110'71::

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-30
Ai, Quality Section, laboratary 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnali. Dhio 45226
DAY
OF
MONTH
.....
'-11
MEAN
NO
MAX.
.'
A.M.
--,---- --,--,--
7.8 8.9 9.10 '().II "-'2
12-1
1.2
2-3
3.4
5.6
4.5
6-7
111
211
3
4
5
o
:O!
.04
'~i .Q~
.0 .0
.0. .0.
.0
.0
.0
.02
.02
.05
.Q~
.0.
.0
.0
.0.
.0'
.0-
.0
.1(
.0-
.0
.0'
.0-
.0
.01
.0 .0. .0. .0 .03 .0' .11 .11 .0' .0/ .03

'-of-.O! --.0~---.-ot-:02 -~O: .0 -.-0; ~O- ----
.O~.O .0 .01 .O~ .04 .0- .O! .04 .04
.014j .03 .0 .0 .0 .03 .O~ .0 .O! .001
.O~ .O~ .0 .0:11 .0. .02 .0. .0 .001 .0
.O~ .03 .O~ .O~ .02 .04 .O~ .O~ .O~ .03

.O~ .O~ .~~ .0' .o~ .03 .O~ .o~ .O~ .0
.O~ .03 .O~ .O~ .O( .03 .O~
.O~ .02 .O~ .O~ .02 .02 .0. .OE .0 .03 .O~
.03 .O~ .00 .oe .01 .02 .04 .04 .04 .04 .0.
.02, .0:11 .03 .03 .03 .03 .03 .03 .O~ .0'3 .03

.02 .03 .03 .O~ .01 .01 .01 .n~ .0. .0. .0 .01
.Ol .01 .01 .01 .01 .04 .O~.o .O~ .O~ .0
.OJ .02 .~oi .01 .02 .03.0 , I I
.O~ .01 .0:11 .OC .01 .02 .0 .O~ .O~ .O~.O .02

:-:~ ::: ::: :::-~:-~-:.:-: -:-:-l':::-~:-'~':-:~Ii.. ::~ :::

.03 .O~ .0 .0. .0 .05 .O~ .0": I .0. .02
.04.0 .01.0 .0. .03 .031 .02 .0 I .01
.00 .01 .0:11 .0.. .03 .03 .04.0 .O~ .0' .02

.03, .02 .02 .01 '~j-~-~-~ -~1...~~-.Ol ~ .04 .04

.03 .02 .0'3 .03 .021: .03 .Os, .U), 'I I
.05 .04 .02 .01 .01 .02 .OJ, : I .02
.04 .O~ .03: .01 .011 .01 .O~ .O~ .09, .10 .04 .04
.03. .04 .O~.O .041 .06 .O~ .O~ .03; .0. .02
.01- .01 .OQ .oe .011 .01 .011 .01; .01 011 O. 01

: I I I" -I' .

.041 .O~ .O~ '0~14! .03 .02
29J 25 24 23 23 26
.0 . .10 .10.1 .O~ .08
i
6
7
811
911
10

11
12
13
14
1511
1611
17
18
19
20

21
2211
HII
24
25
26
27
28
2911
3011
.03: .02
29 , 29
.051 .05
.02, .02 .02 .03
29 26 29 29

.04 .03 .04 .06
* Indicates Saturday or Sunday
local standard time used
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
.04
.0
.0. .03
.O~ .03
.0. .02
.01 .01
.O~ .03

. O~ .02
.02
.02
.02
.03
12-'
.08
.01
.01
.0
.0
.0.

.0'
.0- .0
.0 .0
. O. .001
.OC .OC
.0 .0'
.~~ .0:11
.0, .0..
.0. .~~
. O. .0'
.02

.01 .01
.0:
.01
.0. .0.
.0 .0
.0
.0
.0
.0
.0
.0
.0
.0' .03

. O~ .0
. O. .02
.0' .0
.0, .02
.01 .01
.02 .02
27 27
t\
.0, -.:>5
'-2
.0
.0
.0
.0'
2-3
3.4
4-5
.0 .02
.0 .01
.0' .03
...., ~
OENVER.COlO.
NITROGEN DIOXIOE
JUNE 1968
P.M.
5.6
6-7
7-8
8.9
9-10 10-11
.~~ .0 .0
.0 .OC .0
.04 .0' .0
.0
.0
.0
.0
.0
.0
.0. .03 .0 .0 .0 .0 .0 .06
-----
.04 .03 .0 .0, .0 .0 .0 .03
.01 .01 .03 .01 .0: .0 .0 .0 .04
.0'3 .03 .03.0 .04 .03
.O( .0 .02 .0./.0 .0 .0' .0. .02
.O~ .04 .03 .0. .0. .0 .04 .05
.0 .02
.0 .02
.0 .02
.0/ .05
. O. .02
.0
.0 .02
.0 .02
.0. .01
.0 .03
.0 .02
.0
.O~
.O( .02
.0 .01
.0' .03
.03 .02
. O~ .02
.03 .0'3 .02
.0' .02
.0. .0:11 .02
.01 .01 .01
.O~ .02
7 29 28
.08 .O~ .05
.0 .OC .0/
.0 .0 .04
.0. .0 .0/
.0 .0. .0
.0. .0. .0
.0' .O~ .05
.0 .O~ .05
.O! .O~ .03
.04 .0. .02
.04 .0' .03
.0. .0. .0, .0 .0, .03
.0 .0 .O~ .0/ .04 .03
.0 .0. .0,. .O~ .0, .03
.OC .OC .O~ .O~ .0:11 .02
.0 .0 .O~ .O~ .O~ .05

.Oc .q~ 'Oi .Oc .04
.0 .0 .O~.O .04 .03
.0. .Olt .O! .01
.0 .04 .O~.O .02: .02
.02 .O( .o~ '03 .O~ .03

.0. .~~ .05 .04 .OJ .05
.0.. .O~ .O~ .01 .07. .05
.0:11 .O~ .O~ .0' .O~ .03
.0 .02 .O~ .0.. .O~ .01
.0< .n> ..'.. '.1'.'


.02.0 .04 .04 .03 .03
28 28 28 27 29! 29
.O~ .0. .O~ .OE .O~ .06
i
11.12
.0'5
.03
.03
.033
.026
.042
DAILY
MEAN
NO.
OF
HRS
S-MIN.
MAX.
.040
.023
.038
.026
.021
.036
.038
.033
.033
.027
.026
.018
.031
.019
.024
.029
.027
.026
.018
.0?7
.028
.036
.033
.039
.028
.014
.029
.042
~. .11
2. .06
2 .12
2
.14
2 .05
2 .09
~~ .05
°2; .06
2. .10

2 .10
I! .08
. 2. .09
2 .07
2 .05
2 .04
2( .08
1 ~ .05
2. .06
2 .06
~~ .06
2, .06
1 ~ .05
2e .05
23 .07

t~ .13
1, .08
22 .13
2:11 .08
2'3 .05
60F
.14
TABULATED
WEC.. SF.P. 10. 1969
I

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-31
Air Quality Section. laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
~
0'"
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY
OF
MONTH
MEAN
NO.
MAX.
12.'
}
3
4
5
.0
.0
.0
6Q
7Q
8
(iJ
10

11
12
13!!
14!!
15
.0 .0'
.0 .0
.0', 00
00~
.O~ .O~

. O~ 0 O.
.O~ OO~
.O~ 00~
.O~
! 002

.0) .0
16
17
18
19
20Q
I
.J .O(
00~ .0.
21!!
22
23
24
25

26
27Q
28*
29
30
.OZ .01 .01
i
i
i
31
* Indicates Saturday or Sunday
local standard tIme used
'.,
'-2
2-3
.0 .0
001 .0. .0

.0. .0. .0
.0. .0
.0. .0
. O~ .0
.01 .0
. .0'

. ~3 . O~
.Ol< .0.
.02 . O~
.01 .OC
.01 .01

.02 . o~

I I
.OC .og
o O~.
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
A,M.
--~_r --
7.8 8.9 I ~.IO
10-11 11-12
3-4
5.6
4-5
6-7
!
;
I
I
.0' .O~ .0,
.111 .oe
I
. O~ . O~


.1~.115 13 12 13 15
'-'OJ .11 .12 .08 .O~ .04
i
12.'
.0 .0.
.0: .0;
.0/ .0;
.0, .0
.0
. o~ .0
.0' 001

. O~ .02
.03
.Ol<
.0,

.0,
16 12
. o~ . 0 ~
1-2
2-3
3-4
.0/
.0
.0
.0
00. .0
.0
.O! .o~ 003
.0
.0 .02
7 16 16
.01 .01 .04
4.5
.0 .03
. O. .02
.0, .02
. O. .02
.0 .02
.0/ .03
. ~E .04
. o~ .03
.0
.0
.0
.0. .01
.0' .04
P.M.
5-6
6-7
.0 .0 .~~ .0. .0
.0. .0. .0 .0 .0
9.10 10.11
--
.0 .0.
.0. .0.
.0 .0'
.0. .0.
.0 .0/
.01
.01
.0' .0
.0 .0
.0
.0 . O~
. O. .0
.02
.0. .O~ .0
.02
.01
7-8
8-9
.Ol< .0
.0,
DENVER,COlO.
NITROGEN DIOXIDE
JULY 1968
.0 .06
.0 .04
. o~ .03
.03
.Ol< .03
.O~ .02
003
.O! .0/ .O~ .0: .0. .01
.0 .OJ .0/ .03 .0. .02
.~~ .0 .0
.0' .0 .0
.0/ .0 .0
.o~ .03 .0
.0< .0/ .0'
.0' . O~
00 .0
.0
.0'
.0' .0'
.0' .O~ .0
.0 .0
.0'
.0 .0<
15 11 14 18
.0' .0' .01 .0
TABULA.EO
15
.0
"-'2
.02
.02
.020
.030
.040
DAILY
MEAN
NO.
OF
HRS.
~'MIN.
MAX.
---- .J.
!
i I I
! I i
. 0 1: 0 0 1 0 0 1: .0 1 . 0 ~ . 0 1

.03:\' .0. .02 .02
16 15 17 16 17 13
.05 .05 .0/ .04 .0'5 .05
.q, .02 .Q~ J I
_:~ .:::~:: ::, .::1 ~O. :0 - ::~ ::' ::.



.0, .02 .0. .n. t
.0, .0/ .0: .o~ I .00
.O~ .03 .01 .01 I I .O~ 002
.O~ .03 .011 .O~ .O~ .O~ .03

.0"1 .19 .~O .~~~
.o~ J .06 .~~ .0/ .O~
00~ .03 ~ .o~.o 00~ .O~ .02 .0
.O~ .03 .0 .0 .0 .0. .0 .02
.0 ,j .0 .01
~~~O~iO ; .!_J .14. .05 .04 .04
.011 .02 .0 .0 I .OJ .OJ .01 .03

.oq .01 .O~ .O~ .0"1.0 .03 .O~ .O~
.01 .01 I i I .O~ 00~
.01 .oi . Or ~o I .ot~oc ~-O-I- - .01-
I :
I I
--- -. - -1- - --- - - I
I I
I i
i
.05
.04
.03
.05
.04
0034
.023
.035
.035
0043
t. .04
2( .08,
1. .06
1. .0'1'
Ie .05
2( .11
-2 .08
Ie .11

11 .0'1'
2C .0'1'
.1 .05
1 c 005
2. .1 e

2, .08
Ie .01
1 .05
1
.06
0041
.035
0024
.018
.035
.03
.029
1
2
.13
.06
.023
.019
.05
.017
331
.18
WEO.. SEP. 10. 1969
.046
.07.5
.03
111
.06
.046
I"
11077

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-32
Air Quality Section, laborat:)lY of Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department 01 Health, Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY
DF
MONTH
A.M.
--
12.1
2-3
'-2
3-4
5-6
4-5
6-7
7-8
8.9
q.10 10.1\ 11-12
~
-...)
1 .0.0.0.0 .OJ .03 .0 0 01 0 01
2 .0,.8.0.0.0 .04 .0 :0 :1 :O~ :0
3* .0 .0. .oe .0 .0 .02 .0 .0 .0 .0 .0
4* .04.0 .04 .0' .04 .03 .0 .0 .0 .0 .0
5 .0,.0 .O~.O .OJ .03 .0 .01 .01 .1 .:...-0_--

--r-:8f.~- --~~il :g~ --:f;:8: ~O' - :8j -.o~ :8: .0

8 .O~. .0' .0 .04 .0 .04 .01 .0 .0,
9 .02.0.0.0.(\ .03 .04 .0 .051 .041 .04
10* .04 .04 .04 .04 .0, .05 .01 .O~ .01 .0 .0

11* . ! I I I
12 '! I
:: : ,0, ,0. ,0 .O~ .02 ~h, .0~1 .Oi! .02

17* .01;.0 .0 .01.0 .03 .031.0 .031 .O~
18* .O~ .O~ .O~ .O~.O .04 .O~.O .021.0 .0' .01
19 .O~.O .O~ .O~.O .04 .O~ .O~ .O~ .O~ .Oi! .02

:: ::~ ::: ::~ :r~i-;:: ::r:J-::~::~~~ :::

22 .03 .02 .0 ,.0 .O~ .03 .01 .o~ .01 .0'1 .O~ .02

!:: : I I I L_u _L ;_JJ

26 ; .021 .O~ .01 .01! .02 .O~ .O~ .O~ .07; .O~ .02
27 .02 .02 .O~ .02 .031 .03 '0~1,0t): .07; .O~ .02
28 .0'" .03 .021 .01 .01' .02 .Olt, .~~ .O~.O .02
29 .00 ! , .OO'! .0. .01.0 .03
30 . .03 .O~ .0' .031 .04 .05\ .ll! .1 .04
i i). 'I ! I )21
31* .05; .O~ .O~.O .03 .03 .(131 .0" .O.ii .0l'0 .01

MEA~ .03i .02 .021 .02 .02 .03 .04 .06 .05 .051 .O~ .03
NO 20 ,21 21.1 22 22 22 20 22 19 21,i 20 22
MAX. .051 .05 .051 .05 .04 .05 .06i.11 .12 .111 ~ 11 .07

* Indicates Saturday or Sunday
Local standard time used
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
12-'
1-2
2-3
3-4
4-5
P.M.
5.6
6-7
7-8
8.9
.03 .0.0 .0 .Oc .03 .0 .oc .0 .0
.07 .04 .0' .04 .03 .04 .0 .0 .0

.01 .0 .02 .0 .0' .0 .0
.01 .0 .0 .02 .0 .0 .0 .0

.03 .0. .04 .0.0 .02 .0, .0 .0 .0

'-------1----
.03 .0.0 .0. .0 .03 .04 .OJ .0 .0
.04 .0 .0. .O~ .0/ .05 .0' .OE .0 .0
.05 .04 .0 .0. .0 .02 .0. .0 .0 .0'
.04 .0 .04 .0' .04 .03 .04 .Oc .0 .0
.07 .01 .01
.02  .0 .O~ .O .02
.0  .0 .O~ .O .03
.02 .01  .04 .0 .02
.02 .02  .0 .04 .03
     -
.O~ .O~  .O~  .02
.02 .Oi!   .04 .02
. ~~ . ~~
.0. .0
.~~ .~~
.0- .0'
.0. .0'
.O~ .0' .04
.0 .0 .03
.~~ .04 .02
.0' .O! .03
.04 .03
.0. .01
.01 .01 .01
.02 .0':1 .O~.O .03
21 11 2 11 20 21

.08 .08 .O~ .O~ .O~ .05
~,I :
NITROGEN OIO~IOE
AUG. 1968
DENVER.COLO.
9.'0 10-1'
.0 .03
.0 .0:1
.0 .05
.0 .03
.0 .02
.0 
.0 .04
.0 .03
. O. .03
.0 .0. .0 .O~ .03 .02
.0. .0 .O.ii .0 .03 .03
.04 .OC 01.: .0' .O~ .04

.'o:~ '~-
.0.0 .0' .0. .04
.Oc .OC .0 .0 .O~ .04

.0 .0 .041 .0. .O~ .04
.OJ .OJ .03 .O~ .0;;: .02




.Of .Of ~ .~; .,. .04
.0. .0 .O~ .0, .O~ .04
.0. .0 .03.0 .02 .01
.0' .0/ 'OJ' .O~ .O~
.O! .0' .0 .o~ .03 .05

.0. .0 .0 .04 .0J .03
I
.O~ .O~I .03
22 22 20
.0 .O~ .05
I
.0 .03 .0
22 22 22
.O~ .O~ .06
DAILY NO. 5.MIN.
MEAN OF MAX.
HRS
.032 2 .09
.040 2 .13
.027 2( .07
.024 2 .06
.033 2 .13
.032 ~~ .10
.041 .11
.041 2 .09
.032 .2' .06
.0'58 1 c .09
"-12
.025 2C .05
.026 H .04
.034 2 .OR
.031 2 .01
.036 2 .08
.028 2j .01
.031 2. .10
.038 2. .10
.029 2j .09
.026 2. .01
.034 11 .05
.042 1e .15
.026 2~ .06
.033 48C 
.058  .15
TABULATED
WEO.. SEP. 10. 1969
r-

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-33
Air Quality Section. laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
~
CO
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
DF;NVER,COLO.
NITROGEN DIOXIDE
SEPT. 1968
DAY       A,M.            P,M.       DAIl.Y ND. 5.MIN,
DF         --- .--                OF 
MONTH 12.'  1.2 2.3 3.4 4.5 5-6 6.7 7-8 8.9 9.10 1().11 11-12 12.' 1.2 2.3 3.4 4.5 5.6 6.7 7.8 8.9 9.10 10.11 11-12 MEAN HRS. MAX,
1<1 . .q~  .q; .0 .0 .0 .02 .0 . Q. . Q~ . Q~ .0 .00 .oe .0  .0 .0 .01 .0 .0 .q, .0. .q,  .016 2 .84
2 .0  .0   .oe   .n .0 .0 .0 .01      .00 .0. .0. .0 .0 .0 .02 .014 1' . 4
3                             
4                             
5                             
- -      ---- .-- 1-- '- .-- _..                
6                             
7.                             
8*                             
9                            - 
10  ! .0, .0; .0. .0 .03 .0 .0 .0   .03 .0. .0,  .0 .0 .04 .0 .0 .0 .0 .0. .02 .031 21 .08
 i   
11 .O~ .0. .O~ .0' .0 .02 .0 .n! .0' .~': .0 .02 .0. .0.  .0 .O! .04 .0' .O! .0' .0' .0 .03 .030 2 .06
12 .03,.0 .0.0.0 .03 .0101.0 .0 .0 .0 .02 .0 .0  .0 .0 .02 .0 .0 .0 .0 .0 .03 .031 2 .10
13 .O~ .01 .0 .0 .0, 002 .o~ .n~ .0 oOE .0 .02 .02 .O~  00 00' .04 00< .0' .0< .0< .0' .04 .032 '2 00?
14<1 00 1.0 .0. .o! .0> .01 .0 .0: .O~ .O~ 002 .02 00 .01  .0 00 .03 .0 .0' .0' .0' .02 .03 .024 2 .05
15<1 .010 00< oOi.O .02 .03 -jr:~ ~ .0 .01 .0 .01   .0 001 .0. .O.ii .0 .0 .0 001 0019 2. .04
  I      
16 .O~ 00 .O~ .0. .O~ .03 .02 .02 .02 .O~  .0 00 003 .0 .0, .0 .0' .0 .03 .023 2 004
17 .021 .0. .O~ 00. .C~ .O~ :g :g~ :g~ :g~ .O~ .02 .02 .02  .0 .0 .02 .0. .O.ii .0' .0' . O~ .04 .027 2' .05
18 .O~.O .O.O .O~ .02 .O.ii .03 .O.ii .03  .0 .O~ .03 .0 .0< .010 .0' .0< .04 .033 2 .10
19 .O~.O .O 00~.0 .02 .O~ ~ ~ .O~ .O .02 .O.ii .O~  .0, .O~ .04 .0 .0 .0< .0< .0< .03 .029 2 .0'3
20 .01 .0. 'O~J-i'Oj .0:1 .O~.O .0 ~ .06 .0 .05 .O~   .0' .03 .0 .0 .0' .0' .03 .01 .036 2 .08
21<1 --+  .05 .O~ 00~.0 .0J '.~~ '.02 .03 .~~     .0<  .02 .02 .~~   2 .06
.O~ .0. .O~ .01 .O~  .0. .0. .03 . ~~ .03 .030
22<1 . O~ . O~ M:~~ .03 .O~ .04.0 .O~.O .02 .03 .0  .0< .0< .04 .0< .0 .OE .OE .0 .03 .038 2' .06
23 .03.0 .04 .Otq .O~ . Ie . lZ .o~ .05 .05 .O~  .0< .0' .04 .0 .0 .~~ .0 .O~ .06 .055 2 .14
24 . O~ .0< .0 .0 .031 .04 005 .O~ i .O~ .03 .O~ .O~   .O~ .06 .0 .0/ .0 .0' .0 006 .047 2C .08
25 .04.0 .0.0 _00~ .04 ~._~.O~~.~ ~~ .0' .03 .O~ .O~  .0 .0< .05 0 O~ .0' .O! . O~ .OJ .04 .041 2 .08
  I  .             
26 .O~.O .O~.O I .03. .04 .O~ .O~ .~~ .O~ .OE .05 00' .0<  .0' . O~ .04 .0' .0' .O! .O! . O~ .03 .046 2 .10
27 .04.04 .0.0 .O~ .03 .O~.O .0 .0 .0' .02 .0. .03  . O~ . O~ .04 .0/ .6i .04 . O~ .O~ .04 .041 2 00?
28<1 . O~ . OJ .0 .0 .03 .03 .O~ .O~.O .03 .o~ .03 .02 ..02  .0. .0 .03 .0 .0. .0, .~; .0 .03 0029 2 .08
29<1 .021 .0. .011 .01 .011 .01 .0 .O~ .oi ooli .O~ .03 .0' I .0'  .0 .01 .06 .O~ .0/ .O! .0 . O~ .03 .029 2 .07
30 .04!.0 .O~.O .03, .03. .O~ .OE> .O~ .O~.O .02  .03    .05 .o! .0/ .O~ .0< . O~ .03 .038 2( .09
 I   I i   I I                   
    I                     
MEAN .O~.O .0. .0. .O~ .03 . O~ .0' .O~ .0' .0 .02 .0, .0.  .0 . o~ .03 .0' .0' .OJ .0< .OJ .03 .032  
NO, 225123 22 22 2~4 22 22 22 21 21 22 23 21 21  18 21 23 23 23 23 23 23 22  50j 
MA.X. .05 .05 . O~ .0: . (I .05 . O~ .OE .tC .1.ii .01 .05 .0' .0'  .O! .0/ .06 .O! .0' .O! .0' .0, .06 .055  .14
        i                 
* Indicates Saturday or Sunday
Local standard time used
TABULATED
WED.. SEP. 10, 1969
c



.
I
1I0iO

-------
D;; --1--- -r-- -~ - A.fl.1, _1 . ,-- - --- P.~---. DAILY NO. 5.MJN
MONTH '2.' '.2 ;.3 -3.4 -4.5 -1- 5.~' ~::; - 7.8 - ~'9 -; '>.'0 'O.,-,!, ~'.~'2 '2.' '-2 2.3 3.4 4.5 5.6 6.7 7.8 8.9 9.' 0 '0." 1 1.12 MEAN HO;5 MAX

! ..:~~ ..00]; ..001'.00:: ..00J .03 '.oo~ .0-1 i. ...8oj :8~' :8~ :8~ :8, :8c :8; .03 .0 .0 .0 .0 .0 .02 :8n 1 :8~
3 .. ,. .02 ~ .J 3.0 .05 .Oc .~, .~~ .O! .03 .oc .0 .0' .0' .0' .05 .036 2 .07
4 .0, .O~.O .0: .0 .04 .O~.O .0; .0'11.0 .10 .1 .0' .0<.0 .02 .0 .0 .0 .0 .0 .02 .04q 2 .14
~-- .021 .ot.~~ --'-~ .OJ .01 .O~.O .O~ ~..O~ .O~ .01 :~ .0 ~ .0 ~ .03 .oc .O'_:~~ .0C_~t~~ .025 ~ .04

6* .O~ .O~ .O~'O .02 .02 .02 .001 .02 .oi .01: .02 .0 .o~ .0 .0. .05 .0 .0 .OE .Oc 'OJ .03 .031 2 .OR
7 .04 .0'! .05 .05
28 .07 .04 .04 .O~ .03 .04 .osi .05 .08' .09 .0 I .07 .O~ .041 i .0 .06 .~~ .0' .05! .O~ .04 .04
29 .04 .OJ .03 .03 .03 .03 .O~ .04 .0'5 .06 .O~ .05 .041 .O~ .0 .07 .0 .0 .O~ .O~ .05 .05
30 .04 .04 .03 .O~ .04, .03 .O~ .04 .O~ .Ob .O~ .03 .03 .O~ .0'5 .05 .O~ .O~ .o~ .01 .04 .04

31 .03 .031 .02, .01: .04 I .O~ : I .05 .Oc .0' .o~ .04 .03 .04

MEA~ .03 .031.03, .O~ .O,! .03 ."4 .041 .o~ .05 'O~' .04 .O~ .O~ .0" .Oc .05 .O~ .0' .O~ .O~ .04 .03
~o Z 9 29 29 i 29 i <' 8 ; 28 29: 26 : 23 I 26 28 28 29 28 1 7 29 27 27 27 27: 27 ! 28 ; 2 R
MAX .07 .04i .05, .051 .04; .05 .05: .orr .08: .09,.1 .11 .11 .O~ .O~ .1" .18 .1' .1' .o~ .O~ .05 .05
CONTINUOUS AIR MONITORING PROGRAM
Table 3-34
Air Quality Section. laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLQRIMETR1C ANALVSIS
~
~
* Indicates Saturday or Sunday
local standard time used
TABULATED
..,. :
DF"IVER,COLO.
NlTROC;EN DIOXIDE
OCT. 1968
.038
.045
.036
.018
.023
2
2
2
1
2
.09
.08
.06
.03
.05
.026 2 .05
.026 2C .05
.043 2 ,06
.040 I" .07
.035 2( .11
.049 2. .17
.034 21 .01
.048 2 .08
.065 I 2 .19
.039 T 2~ .11
.040 I 2~ .08
.052 2. .11
.047 2~ .09
.040 22 .08
.03'5 1: ,05
.038  
 62/ 
.065  .19
WED.. SEPt 10. 1969
r
I

-------
'CONTINUOUS AIR MONITORING PROGRAM
Table 3-35
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
~
o
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALVSIS
DAY
OF
MONTH
MEAN
NO.
MAX.
A.M.
.--.-
7.8 8.9
12.1
1.2
12-1
2.3
1.2
3.4
5.6
6-7
4.5
9-10 10-11 11-12
~~
311
4
5
.O( .0
.04 .05
.0' .O~

.~~ .0'
.0' .O(
.0, .0
.0
.O( .O( '.05
.0/
.0
.0
00( 00( .oc 00' .05
.O~ .0 00 OO~ 001 .05
.OE ooc 00( .O( 00( .04
o~: o~! .0/ 00
00 00 oOC .0
.04 00 .0 .0
o~, 006
00 006
.0 002
6
7
8
911
1011
.04 00, .0
-- --
-.
.~. _n
.0' .02
00
.0, .0
.0
003
16i1
11''1
18
19
20
I
i
I
I

, 00~ 003 00' 00' 02 0, 0 0' OE

i 0 .10 _0. I 0 0

I I 00~ oo( .0/ .0'
00~ 00~ 00( 00( .0 .04 00 .o~ 00~ 01~ oOc .03 00 00(

~~ioOd oO'.:..
-------
Table 3-36
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, Laboratory 01 Engineering and Physical Sciences
Division of Ail Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Englneellng Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
COLORIMETRIC ANALYSIS
CJ1
~
~y AM
MOO:TH ~~~. -;-;--;~--3-:;-~:5l~~- '~~T-7'8 "6.9 iq.-1011~~~ITI~~124 12.\ 1-2

.0 .OJ .OJ .0 .Q~ .04 'O~' .n~ .0 .03 ,O..l~ .03
.0 .0 .OJ .0 .O~ .03 .0 .0 .01 1.1

:g: :8j :8 :8j :g~ :8~ :A :A :AI :A~ :8i .03

.O~.O .0 .0 .O~ .04 .0 .0 .O~ .09 .06.0 .01
" 'I
-6- .0] .-0 -~-oj-'o- .0 - .03 .04 .OJ .o-~ :O~ .0J .02 -.0- ~-O
7* .Ot! .0, .0 .0 .O~ .01 .O~ .0., .O~ .O~ .O~ .05 .Oi .0/
8* .04 .OJ .0 .OJ .03 .04 .04 J ! .Oi: .02 .03 .0' .0'
9 .04 .OJ .0 .0' .04 .04 .O~.O ! .06 .O~ .07 .0 .01
10 .03.0 .O~ .OJ .O~ .05 .O~ .O~ .O~ .1~ .211 .22 .0' .0

11 .03 .0: .021 .02! .OZ .02 .03 .~~ 'O...i! .ot~-O~03 .0. .0.

g :~~ :~~ :g~ :g~ :~~~ :g~ :~~, :~~ :~ , ,:~~ :~~ :~~ :g. :~.
14* .06 .0' .0= .O~.O .06 .n~ .O~.O '0i, .O~ .14 .1 .1,
15* .08.0 ~ .O~~O .07-- .O! .0 ~~j ~~- .06 .0' .OJ

16 .04 .041 .O~.O .041 .04 .O~ .01j .O~ I _I .08 .Of
17 .06 .O~ .O~ .0'1 .01J .06 .Oftj .O,,! .O~ .081 .O~ .02 .0;/ .0;/
18 .01 .01, .01: .021 .021 .O~ .O~ .O~ .0"1 .04\ .051 .0. .0.
19 .0to, .O~ .O~ .0"1 .n4J .04 .0"1 .n~ .O~ .O~ .O~ .04 .O~ .O~
20 - ',05.:. .01'0~ .~~ ~Oj .03 .04, .04 .0' .03,.0 ~~ .0 ~-

2111 .03 '0;' .031 .O~ .O~ .03 .(I~ .03 .O~ .OJ .03 .03 .0' .0'
2Z* .03.0 .031,.0 '011, .03 .O~ .03 .O~ .0lti.O .03 .O;j! .01
23 i!, I:
24 I ii, i I
25 .05 .05) .05~.0 .011 .02 .O~ .03 .O~. .04, .05 .o~
1--1-.-- - -- ... .-.-. - J . -------
26 .00 I ' i .03: .04 .1'5 .n5: ~ .04 .0 .0'
27 .02 .02: .03; .03i .01': .02 .t'J .041 , I .05: .04 .02 .0' .03
28* .03 .OJ .01 .041 .03 .04 .O~, .n4, .O~ .05 .O~ .07 .~~ .0,
29* .05 .051 .04, .04 .04' .04 '0"'1 .(14 .O~ .03.0 .03 .0, .01
30 .03, .03, .02; .02 .n2' .03 .O~ .04' .01 .04!.0 .04 .04.0
.1' ' I' -' I
31 .03: .0., .04 .03 .03; .04 .O~ .O~ .O'! .051.0 .06 .0 .06

MEAN .04: .031 .03, .04 .03! .04 .04 .041 .Os! .05: .O~ .05 .O~ .04
29 , 28.1 28 J 28 29; 29 2Q, 2A I 25.1 26 ,25 26 28 26
::; .081.071.081.07 .081.09 .lli .111.111.151 .2' .22 .P .1~

* Indicates Saturday or Sunday
Local standard time used
1*
2
3
4
5
.0
.0
.0
2-3
3-4
4-5
P.M.
5-6
6-7
.. '. ,;
DENVER. COLO.
NITROGEN OrOXIOE
DEC. 1968
7-8
8-9
9-10 10-11
.0 .q, .04 .~~ .q~ .0 .0 .o~
.0 .0, .06 .0 .0< .0 .0 .0
.0' .0/ .05 .0' .0 .0 .0 .0
.0/ .04 .0, .0 .0 .0 'OJ
- -- .OJ .OJ .0'5 .0' .0' .0 .0 .0

.0 .0 .04 .0. .0. .0 .0 .0
.01 .01 .04 .OJ .0/ .0 .0' .Olt
.0. .0 .05 .0' .0' .0 .0 .0,1
.0 .0/ .04 .0/ .0/ .0 .0 .0'
.le .0 .06 .O~ .O~ .0' .0' .0'
.0
.0
.0-
.0, .0; .03
.01 .oj .03
.0' .OJ .05
.0/ .05
.0 .0 .03
.02
I .oe
.O~
.~~ .06
.0, .04
. O~ .04
.oe .05
. O~ .03
-
.0' .0 .03
.0;/ .O~ .04
. O~ .06
.O~ .Of .06
.0. .O~ .04
.01 .0 .02
.01 .0 .03
.03 .01

.04 .O~ .06
.03 .OJ .04
23 29 29
.10 .oe .06
.0. .0
.0, .0.
. OJ .0'
. O~ . OJ
.0 .0

. O~ .0/
.04 . O.
. O~ . 0 ~
.0' . O'
.02 . O.
. ~~ . q:
.0 .0
. O~ .0/

. ~~ . OJ
. o~ .0'
.0' .0
.0, . O.
.01 .0,
.04 . 0 ~

.04 . o~
29 29
.06 .0/
.0 .0
. O~ . O.
. O~ . O.
. O~ .01
.0' .0
:gj :g~
.0 .06
.0 .oe
.01 .05

.011.0 '07!~ .07
.021 .0. .0 .01
.O~ .o~ .0 .04
.O~ .O~.O .06
.0' .0' .OJ .03

.03 OJ .OZ .03
.O~:O .05, .06


::j ) "j .02

.O~ .O~ .O~ .04
.O~ .03, .O~ .05
.02 .02 .02 .02
.02 .O;~Z: .02, .03
! !
.O~.O .02 .03
! I
I .1 !
.O:~ .O~ .041 .04
29 29 J 28 . 28
.0- .O~ .08 .OB
11.12
DAILY
MEAN
NO
OF
HRS
5.MIN.
MAX.
.03
.O~
.02
.02
.03
.033
.049
.0'16
.030
.039
2 .06
2 .11
2, .12
2C . OR
2. .09
2 .06
2 .07
2 .06
-2. .08
23 .31

2; .04
2 .04
23 .06
21 .18
2 .08
1~ .12
2. .11
2. .06
2 .09
2 .05
2
2
.03
.07
.02
.05
.04
.04
.03
.026
.033
.039
.047
.071
1! .07
1 .07
2. .06
2- .08
2 .06
2. .07
2
.09
.023
.013
.OH
.073
.0'52
.057
.042
.034
.047
.032
.028
.035
.041
.038
.031
.038
.028
.027
.044
.039
.073
63
TABULATED
WED.. SEP. 10. 1969
.31

-------
'CONTINUOUS AIR MONITORING PROGRAM
Table 3-37
c.n
[\j
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
DAY        A.M.             P.M.       DAILY ND. 5.MIN,
DF                             MEAN DF MAX.
MONTH 12.1   '.2 2.3 3.4 4.5 5.6 6-7 7-8  8-9 q.IQ  10.11 11.12 12-1 1-2 2-3 3-4 4.5 5.6 6.7 7.8 8-9 9.10 10.11 11-12 HRS.
1                               
2                               
3                               
4                               
5                               
       -- --- -- -  - --  -                
6*                               
711                               
8                               
9 . O~ .O(      .041  00. 002 .0 002 00 .0 .0. .0, .0. .02 .0, 00 .0 .04 00' .05 .025 -1 .0'1'
10 00 .OE .0 .04 .O~ .03  00~ ::~ ::' .05 .04 . O~ 00! .O~ .0' .03 00~ 004 .0 .0. .0. .03 .041 2' .14
 .~-~-            --             
11 .O( .0' .O( 001 .04 .0. o~:  .~~ 001 .0 .0 .0 .0 00 .01 o~. 00 .0 .0 0 ~j .01 .023 2' .12
12 .O~ .O .o~ 00( .0' .04 oO~ .O  00 00 00! 003 .0. .0. .0 .0' 00; .03 .0 00 .0' .0 00 .04 0037 2' .14
13(1 .O~  .O 00 00 001 003 00' 00'  .0' .0 00' .04 01( 00 .OE .0 .0 .06 oo( 00' .0 .0 00 .03 .043 . 2( .14
14a .0   00. 00. 00. 00 .02 .03 003  003 00 00 002 .0 00 .0. .0 00: .02 .0. 000 00 .0 00. 002 .022 24 .06
15 .O~ 00 .04 00 00 .02 000 004  003 0 O~ 00' 003 00 00. 00 .0. 00: 003 00      0027 1~ 009
16  I          J                
17                          
18  I         003 003, 00 .02 00 00 .0 00. .0 .02 00. 00 .00,.0 .0' .02 0025 U .04
19 .o~ 00' ~j~r~} :~: on~ 00~ 00~  I  000 ooe .OC .O( 00( ooe .00 ooe .oe 'OJ~ .OC 000 0015 2. .15
20a oO~ . .010001000 002 oOC 000 ooe oOC ooe ooe .oe      0001 l' .08
 --1- --             
2111 .Od ooe            .OC .00  2: 
22 .0q.O 00 I .00 .,,~ 00~ oOC ood 0 or 000 .01 oOC ooe ooe ooe .01 .oe  001  0001 003
23 000 ooe 'OJ'O .oq ,00 oO~ .00, .0, 0011 .OC 000 oOC .OC .oe .oe .01 .00 .0 .0' 00 .0 .0. .00 .006 ~: .15
24 .00 ooe 00 00 .O~ 000 000. 0"0        006 . O~ .0 .00. oe J~ .008 .09
25  I   - _L___L-             I   
  I   -_J. ---- -- - --         1:   
26  I   I I   I I               I .   
27i4         I   '              
28*   i   I'      i              
29   I      i"  1.0: .02 .0: .0' .0' .0 .0 001 00 .0. . O~ .02 .015 1 .04
30 .02. .0, oOZ .02 .0J .02 .0. .OZ .04  .02 .0, .01 .O~ .01 .0 .01 .0 .0. .0 .0 .Ol! .01 .017 2 .05
31 .01  .OC .OC .01 .01! .01 .0 .ne  .oe . 0 ~ ooe .00 .oe .oe .oe .0 .O! .00 00( .O( .oe .oe .oe .00 .003 2. .10
MEAN                  15 15 15 15   13 14 13 14 14  334 
NO. 13   13 13 13 13 13 13 14  14 12  13 15 15 15 15  
MAX. .O~   .o~ .05 .08 .01 .04 .05 .08  .o~ .08 .0' .05 .le .0 .OE .01 .0 .06 .O! .04 .04 .O( .O~ .05 .043  .15
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
* Indicates Saturday or Sunday
local standard time used
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALVSIS
TA8ULATED
OENVE~.COLO.
SULFUR DIOXIDE
JA~. 1968
~
c
WED.. SEPt 10. 1969
I
ilOO?

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-38
Air Quality Section. laboratolY of Engineering and Physical Sciences
~ivision of Air Pollution, Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engmeering Center
Cincinnati. Ohio 45116
CONCENTRATION IN PPM
CQNDUCTOMETRIC ANALySIS
CJ1
c:".;)
DAY '----r-- --- - A.M.". P,M. r
MOO:TH 12.1 1-2 2.3 '~~-:~5-1-~~- 6-7 7.8 --8"9", q.10 1~~~III~'-;-; ~- 1-2 2.3 3-4 4.5 5.6 6.7 7.8 8.9 9.10 10.11 11-12

1 .oe .Q; .q; .0 .o~ " l' .00 .01 .O( .O( .O( .or .00 .O( .oe .0 .0 .01.01
2 .OC .oe .0\ .0, .OC .00 .O( .0 .0 .0\ .0 .00 .0 .O( .O( .O! .ai .00 .61 .6i .0 .0 .0 .00
3* .~! .oe .~! .O( .q, .01 .~: .~; .0 .o( .0, .01 .01 .OC .~! .~! .O( .00 .~~ .OC .0 .01 .0 .00
4* .0, .oe .0' .0 .0. .00 .0. .0- .O~ .00 .0 .0 .0. .0\ .o( .00 .0\ .0 .0 .0 .0 .01
~_.O I ._0' .OJ.O .0 .02 .0" .O~ ~O~.O .O~ .0 ,~-~~ .0 .01 .0 ~-~-~-_.O~ .01

! .O~.O ~O 1-'0' .o.! .01 .01.01.01 '01 .01 .01 .0 .01.0 .0'.0 .01 .0 .0 1.0 .0 .01.02


~ 0 ~ .O! .od 0 ~ : ! i tl I )( )()( )( I )()(
1 * .0. l . 1 .0 .09 .0t.' ~~l:,~'.~ .0 _.o~.o .0 .O~ .0 .o~.o .0 .0 .01

11* .00 .oe' .oq .od .or .00 ~ .03 .0 .oc .oe .Ot .O!
12 d 00 or .00 :Od :~d .Ul di .00 .OC .OC .OC .OC .OC .00 .OC .Oe .0J .O! .Ot .00
13 .00 .oe .0' :o~' :or .00 .00 .od .od.o .0, .00 .OC .OC .OC .OC .OC .00 .OC .OC .0 .oe .oe .00
14 .00 .oe .00.0 .oe .00 .OQ .Oa .od .oq .O~ .00 .O! .OC
15 I I .00 .00 .od.o .00 .OC .OC .OC .OC .0 .00 .01 .O( .0 .O( .0 .01

16 .00 .oe .0J .0j-:oj.~00' ~-t 'i--! ----1-1- .oc M '.oc .oe .00 .o( .oc .od .Of. .n( .00
17* .00 .de, .oq .o~ .00 .00 .oq .oq .od .o~.o .00 .oc .oc .oc .oc .O( .00 .O( .oc .og .oe .o! .00
18* .Od .oq .OQ .O~ .O~ .00 .O~ .00 .od .01.0 .02 .0' .OC .OC .OC .O( .00 .0' .or .00 .O! .or .00
19 .O~ .og .oq .oq .O~ .00 .oq .n~ .O~ .og .oq .00 .oc .09 .oc .oc .0 .00 .0 .OJ .oq .oq .Ot .00
20 .00 .O~ .00 .oc .o~ .00 .(10 .(10 .o~ .00' I .oc .00 .oc .00 .09

2221-."0--0~-.0--..00'~-..0~-~ -..ood, .00 .od .00 i '; - ------- .oc --:o~' :Oc .~~ ~ .00 .~~ ~o~~, .09 .09 .00
23 .00.0 I .o~ .De .o~ :gg :gg :gg .o~ .06 .oc .00 .Ot .0 .oc :g~ :g~ :g~ :g~ :g :g~ :g~ :gd :gg
~~: .00 .o~ .09 .oc .o~ .00 .(I~ .00 .09 .00 .oc .00 .o! .0 .oc .oe .Ot .00 .oe .0 .09 .0J I

26 -~~'o~-~I'.o~ .00 :0-6 .00' .()~ ~'o~ -:Or)' :00 .oc~ho .~~ .oc .00 .oe .0'- .O~,' .od .0J .00
27 .00 .0], .00 .01 .00 .00 .00 .od .o~ .00 .or .00 .o! .0 .0 .Ol 1
28 ,I ! 0<:1 .od .oc .00 .o! .0 .0 .oc .oc .00 .~~ .oe .00 .Od .00 .00
29 .00 .00J .od .oo! .01; .00 .o~ .00 :01, .o~ .OC .00 .OC .0 .0 .OC .OC .00 .Ol .OC .o~ .od .Odl', .00

Ii! ' I
i ; I I Ii, i
.00 .oc .~cj .00 .o~ .oq .0<: .011 .oe .00
221" 2 3 2 3 I 22 22 I 21 I 21 19 i 1 e 20
.01 .01 .011 .02 .02 .011 .01 .05) .02 .02
,: i
DF."IVER.COLO.
SULFUR DIOXIDE
FEB. 196B
DAILY NO 5'MIN
MEAN OF MAX
HRS
.002 ~J .02
.001 .02
.004 24 .04
.005 2 .05
.012 2 .09
  -
.010 2~ .03
.004
.002
.000
.000
.000
.001
.000
.000
.001
.001
.000
.000
.000
.000
.000
2
.05
1; .04
1, .00
2e .00
Ie .00
1 .04
11 .00
2e .01
2e .03
2e .04
I" .00

IE .00
1 .00
2c .02
2 < .00
---
.000 2 .01'1
.002 H .12
.000 H .02
.001 2e .Of!
MEAN
.00 .OC
19 I 20
.011 .03
.09 .oc .00 .00
23 i 23 I 21 : 20
.o~ .o~ .01' .02
.oe .oe .oe .0(1 .00 .00
22 22 21 22 21 22
.01 .01 .01 .01 .01 .01
.00 .OC
22 22
.01 .01
NO
MAX.
* Indicates Saturday or Sunday
Local standard tIme used
.002
.012
51\
.12
TABULATED
wED.. sEP. 10. 1969
r'
I

-------
Table 3-39
CONTINUOUS AIR MONITORING PROGRAM
CJ1
~
Air Quality Section, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALYSIS
DENVER,COLO,
SULFUR DIOXIOE
Io'ARCi04 1968
DAY        A.M.           P.M.       CAlLY NO. '-MIN,
OF          '----' -- --~---              OF 
MONTH 12-1  1.2 2.3 3.4 4.5  5.6 6.7 7.8 8.9 9.10 10.11 11.12 12-1 '.2 2.3 3.4 4.5 5-6 6.7 7.8 8.9 9.10 10." 1'.12 MEAN HRS. MAX.
~II .~~  :8~ . ~~ .~~ . ~~  .00 .~~ .~~ . ~~ .~~ .~~ .00 .~~ .~~ .~! . ~~ . ~~ .00 :8~ .~! .~~ .0 :8 .00 .000 ~~ .83
.0  .0 .0 .0  .01 .0 .0 .0 .0 .0 .00 .0 .0 .0 .0 .0 .00 .0 .0 .0 .00 .000 . 3
311 .Oc  .OC .OC .OC .OC  .00 .OC .oe .oe .oe .oe .00 .oe .oe .01 .OC .OC .00 .OC .OC .oe .oe .oe .00 .000 Z4 .01
"           
5           .oe .oe .oe .00 .oe .oe .01 .OC .OC .00 .OC .0 .oe .0 .oe .00 .003 U .14
-     -- ---  -.-  - -. -..  c-.               
6 .OC  . OC . ~~ .OC .oe  .00 .~~ .0 .~~ .0 .~~ .00 .oe .~~ .O! .OC .OC .00 .01 .OC .oe .0 .oe .00 .002 zc .06
7 .OC  . OC .0 .OC .0'  .00 .0 .oe .0 .oe .0 .01 ooe 00 .O! .OC .OC .00 oOC .oe .oe ~oe .oe .00 0003 2c .18
8 ooe  .OC .O! .OC ooe  .00 .oe .oe ooe ooe ooe 000 .oe ooe .oe          0000 1~ .00
911  I                          . 
1011  I                           
 i                           
.11  d 000 ooe ooe oor 000 .oe ooe ooe .oe ooe 000 .OC .~~ .~~ .~~ oOC .00 oOC oOC .oe .oe oOC .00 0000 Z .00
12 00 oria .oe .oe oor .oo .oc roc,oc,oc,OI .oe 00 .0 00 .oc        0000 U .01
13 . i                           
14  I                           
15            .oc 000 .oc .oc  .00 000 .00 .00 . oe .oe .Od .0 .00 .003 1 .08
1611 ooq oOC oOC 000 003 ----:Of~o- o~~ 00~ oOC 000 oOC o~c .~c .~~ o~~ 000 o~~ oDe .Oc .04 .0 .OZ 0007 Z .11
1711 oo~ .00 .00 .00 .00 .00 .0 .00.0 00 .00 ooe .0 00 .0 .0 .00 .0 .0 .oe .oe oOC .00 .001 Z 006
18 .0 . o~~ .00, .00 .or .00 .0 ood ooe .0Q .011 .01 .oe .~~ .~~ o~~ .~~ .00 .~~ . 00 .oe .oc .oe .00 0001 2c .02
19 009 00 oog 009 ooq .00 .00, I I I I 000 .oe .0 00 .0 00 .00 .0 .00 ooc' .oc .oe .00 .000 2e .01
20 -~~:F :oi'OO oOJ .oc 000 ooe 000 oOC .oc ooc .00 000 .00    .oe .oe 000 0000 20 .00
   . I        
-- .o~ :.oc .o~ :o,-~oo -- .~~ .~~ o~~          l' 
21 .0..0 'OJ'oc,o .00 .oc .~~ 000 .oc      0000 001
22  , I    ; .oe 000, .oe 000 .oe .0 .0 .0 00 000 .oc . OJ . OC oOC .00 .000 H .02
Z3* 001 00 .0 .0 .o~ .00 .0 ood .OC .00            .OC 0 o~ .OB .009 1 .13
Z4t1   . I                
 I I                 
25   .00 .O~~ '01.00 ~oJ_o.o~- .. _J_--  .oe .oc .oc .00 .00 oor 000 .01 000 00 i 001 0003 Ie .04
  i   
26 001\ 000 .0 .01 oog 001 .o~ .01\ .~g .o~ .~g   .00 .OC o~~ .oe 000   1  .1  0005 Ie .10
27 oo~  00 000 .o~ .00 .0 I 000.0 000. 00 000 .00 .00. oOC 00 oOC .00 .00 .00 .od .01 .ou, .00 0001 2 .07
Z8 000. 000 009 oOC, 00~ .00 .00 .00 I   000 000 .oe .01 .oe .00 .oe .oc .oq .00 oo~ 001 0001 zc .09
29 .00 001 00~ .oc 000. 000 'O~ '.1 .01 .0' 'O~ .0. .00 000 .00 .oc .o .00 ooc oOC .00 .0 .0 .03 .004 Z~ 009
300 .03; 002 .0 000 .02i .00 .0 .00 .00 .o~.o 001 .00 .00 .00 .oc .oc 000 .oc 000 .00 .01 001 .00 .004 2~ 015
  I     I  .09 .00' .00 009 .0  .00 .00 .00 .00   .oe .oe .oc    
31* .00, .00 .00 .00 .o~ .00 000 .0 .00 .0 .00 .00 .001 2' .02
  i                 
MEAN .00. .00 .00 .00 .00  .00 .~~ .00 .00 .00. .00 .00 .00 .00 .00 .00 .00 .00 .00 .oe .oc .0 .oc .01 .002  
NO. 20 : Z1 21 22 22  22 22 18 21 211120 21 22 24 23 23 23 22 19 19 19 21 21 21  SOB 
MAX. .031 ,OZ .05 .01 .02  .03 .o~ .01 .OZ .01 .00 .01 .00 .01 .01 .01 ,01 .00 .00 .01 .o~ .0 .Oc .OB .009  .18
     i ,                  
* Indicates Saturday or Sunday
local standard time used
TABULATED
o
:
.

c
WEO.. SEPt 10; 1969
I
I!OQ~

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. laboratcry of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department ot Health. Education. and Weltare
Robert A. Taft Sanitary Engmeering Center
Cincinnati. Ohio 45226
DAY
OF
MONTH
~~~-~;-;-
--------.-
3.4
4.5
1 O~ oq .OC .OC .or .01
~ . . I
; -- :~1. ~~~ .~g~I-:g~- :~~ .:g~

611 .00 'OJ .0].0 .04 .00
711 .O~.O .0 .OC .0 .00
8 .Od.o.o, .OC .0'. .01
9 .0t.O .oq .OC .oq .00
10 .00 .oq .09 .or .09 .00

11 I':,
12 . I
1311 : II i I'
1411 I I

1156 :r!! +
I: j
17 Ii.
Ii i,' Ii
18 , , I
19 'I I I I

;~~-HIH-i--I!
~: I iJ' I
25 -l-~ .n .~..
i i ~
! i
i , I
26
27*
28*
29
30
MEA"'>:
NO
I
I
8 8 8 I 8 8 8
.02; .03 .04i .03 .04; .01
MAX
CJ1
CJ1
* Indicates Saturday or Sunday
Local standard time used
Toole 3-40
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
CQNDUCTQMETRIC ANALySIS
5.6
A. 1\1 -- P,M. r--r--
'-6~;'~ 7.818.£1 iq"10rl~~~"I~.12--~~.-I--~--;;- 3.4-~ 5-6 6-7 7.8 8-9 9.10 10-1\ 11-12

'01'0~ .O~. .01 .O~ .01 .0 .OC .OC .0 .0 .00 .0 .0 .O(

I d i I .01 .0 .OC .OC .0 .01 .00 .0 .0 .O( .O( .q~ .00
.0 .01.0 .00 .oq .00 .0 .oc .0 .0 .0 .01 .0 .01 .O( .oc .o! .00
.0 .0 .O~ ..04 .O~ .o~ .0 -'~~-'~~~~ .oc .00 .oc .oc .oc .oc .0 .01

./)~.o .od .00 .O~ .00 .oc .O! .O! .q~ .O! M .0tH- .~; -:0 -.o-~!- .01
:g~. :g1 :g~ :~~:g :~g :g: :g! :g! :g! :~: :g~ :g :g~ :g( :~ :~ :g~

.00 .00 .O~ .00.0 .00 .O! .0. .0 .0 .O! .00 .or .0 .O( .O! .0 .00
.O~ .O~- -L. -~.- --1-- -_.'~ .O! .O! .OC .OC ~ .OC .01 .Of .o( .OC .00

I I I I I I

; , i i I
u_~ ! j--!--~ ----1-1-
: ; ; ! I " I I
I! II Ii. I ~I I

: " - ___I___-t----- I r-li
- -;'1--- I I---!--- -----rl-I ;--

~
! ! I
! I


9 9 9 9 9 9 9 9 9J 8! 8 I 8
.OC .02 .01 .02 .01 .01 .01 .01 .01 .01! .04: .03
- -,
I
8 .
.02!
!
I
i
I
II i 7 I
.041 .031
! I
7: 71 8
.021 .011 .01
-'; '.. \,.1
DE"JVER.C:)LO.
SULFUR DIOXIDE
APRIL 1968
.004
.003
.005
.007
.001
.OOA
.003
.003
.008
DAILY
MEAN
.004
NO
OF
HRS
S'iv1IN.
MAX
2
.03
1 .02
2 .07
2( .09
-
2( .10
2/ .02
24 .06
24 .03
2! .09
19E
.10
TABULATED
WED.', SEP. 10, 1969
r
I

-------
DAV        A.M.              P.M.       DA.ILY NO. 5.MIN,
OF          ---'-'- --                 OF 
MONTH 12.1  1.2 2.3  3.4 4.5 5.6 6.7 7.8  8.9  ~.10  10-11 11-12 12-' '-2 2-3 3-4 4.5 5-6 6-7 7.8 8-9 9.10 10-11 11.12 MEAN HRS. MAX.
1                                
2                                
3                                
4*                                
5*                                
       u_- ---- ----- - - 1- .-                  
6                                
7                                
8                                
9 !                              - 
10 I                               
11*                                
12*                                
13                                
14                                
15                                
          - ---L                  
16             I    .00 .oe .oe .oe .00 .oe .00 .oe .oe .oe .oe .oe .00 .000 1 .01
17 .00  .00 .01 .00 .ol   .01  .o~ .01  .01 .00 .0 .0 .01 .01 .01 .00 .oe .oe .oe .oe .oe .00 .003 24 .03
18* I                         
19* I    I     I  I  !                 
20 I      - -1- . -.o-~-.o~ .,.   I                 
          --               
21 i .02 .01  .01 .021 .02  .01-:-~ .02 .o~ .O~ ..o~ .O~ .02 .01 .~~   . o~   .016 1~ .04
22       .0. .02 .0. .O~ .02 .o~ .0. .02 .0 .0. .0. .0.. .o~ .02 .020 1( .03
23 .oi  .0. .O~  .0. .O~ .02 .0 .02 .0.  .o~.o .02 .0. .0.. .o~ .0. .02 .02 .o~ .o .0 .0. .0 .01 .019 2~ .04
24 .01' .01 .01  .01 .01j .02 ~ .o~ .0.  . o~ .02 .02 .0 .o~ .o~ .0. .0. .02 .0. .o~ .o .0 .0 .01 .016 2~ .03
2511 .011 .01 .01  .01 .01i .02 __.0 -_...o~_.~.  . o~ . o~ .02 .o~ .0. .0. .02 .0. .02 .01 .0. .0. .0 .o~ .01 .016 2~ .04
   ...J_---- -        
26* .011 .01 . o.  .01 .011 .01 .,~ ." . '! :oi1.o .01 .0 .0 .0 .0.     I    .011 t: .04
27 I     .0 .02.0  . o~ . O. .02 .0. . o. .0. .0. .0. .02 .O~ .0.    .020 .03
  ,     .011 .02           .0'    IE 
28  I     .0 .03.0  .O~.O .02 .0. .0 .0. .0. .02 .02 .0. .O~ .0.   .024 .11
I       
29 I .o~    .O~ .03 .0 .03 .03  .03 .0. .02 .0. .0. . o. .0. .02 .02 .o~ .o~ .0.  .0 .03 .024 2e .10
30  i   I      !    I                 
 j   I      :                    
31      .o~ .02  .0.  .03  .0 ..0'2 .0. .0. .0. .0. .0. .02 .041 .0.     .023 14 .10
 I                              
MEAN 5 I 7     7    10  10  11 12 12 12 12 12 11 11 11 10 8 8 'I' 1  22. 
NO. 6  6 8 9 10     
MAX. .02\ .03 .0.  .02 .05 .03 .o~ .03  .04  .03  .0 .02 .02 .0. .0. .0. .02 .02 .041 .04 .0. .o~ .O~ .03 .024  .11
Table 3-41
(CONTINUOUS AIR MONITORING PROGRAM
c..n
0')
Air Quality Section, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A, Taft Sanital)' Engineering Center
Cincinnati, Ohio 45116
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySJS
*' Indicates Saturday or Sunday
Local standard time used
TA8ULA,ED
DEtIIVER,COLO.
SULFUR OJOXJOE
"I A V 1968
~

.
WED., SEPt 10, 1969
c

a


.
I
III Q!Q"7

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division 01 Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welt,re
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
DAY
OF
MONTH
----.
__h_~_._._~
12-' '-2 2-3 3-4
1*
2*
3
4
5
.0. .0. .0, .0,
.0' .0' .0'
.0 .0
.OC .0
.0.
.O~
.021 .OC .OC
I
6
7
h
9.
10

11
12
13
14
15*
. .-.

.oq .01.09 .oc
.00.0 .0 .oc
,
I
I
I I .oc
i
I
I
I
.01! .00
i
16*
17
18
19
20

21
22*
23*
24
25
i i !
; I~-
i i .0J .011 .01
I I I I
:--:J1 .0J:;~~ ."'.,,

I ! .
i i 1 ;
.~~. .Ol-.~J ~_.05 .00
.00 .O~ .oq .00 .O~ .00
.01 .011 .O~ .O~i .01' .01
.00 .O~ .Ot .00 .00 .00
.01, .011 .01; .01.01: .01
26
21
28
29*
30*
   i  ! 
   ,  ! 
MEAl\;     
~o 10 10 11i 14 14: 12
.021 I
f'JIAX. .02. .06j .03 .021 .03
I  
c.n
-]
::: Indicates Saturday or Sunday
Local standard time used
Table 3-42
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
_h'
I
.o~ .00
I
I - j---
.00 .01 .04 .03' .o~ .00
i ;. o~ .00
.o~ .o~- .~~ ..O~ ~i :01

.01i .01i .021 .OJ .O~ .01
.02; , , .00.0 .01
.O~ .01 .011 .02 .01 .02
.01j .02 .o~ .01' .01' .01
I
, I
13 : 11 I 10
.051 .041 .04
,
i
11 I 12 ' 13
.03i .02 .03
A,M.
~-~ .~~u --6:;-r78 -~-9] 0)-10 11O:~IT; ,;; ;;;-r~ - 2.3

j .0, I I I .02

.02 :g .0 .021 .021 .O~ .03
.O~ .011 .021 .02
.01 .0 .04 .o~ .O~ .o~ .01
I I 1 ..

:g~ :gg :~, :g9 .o~ .0J .0J .00
'1 I ' I
i i
"1.01 "1.01..1-1 --~I-
! i I I
, ! i ! !
. -.1- i--._L-j
! I I !
i ! I I
.o~ I I :
I : ! !
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
3-4
4-5
P.M.
5-6
~~'I
6-7
7-8
.0, .0, .0, .0. .0 .02 .0 .0 .0.
.0 .0 .0 .0 .0 .02 .0 .0 .0.
.0 .0..0 .0 .0 .01 .0 .0 .0 .0 .0 .01
.0 .0 .0 .0 .0 .01 .OC .OC .0 .OC .0 .01

--- ------- --- _..~~ -------
.OC .OC .OC .0 .OC .00 .OCH .OC .OC .OC .od .00
.OC .OC .OC .OC .00 .0 .OC .0 .O( 1
I
I
.O( .09 .00
.OC. .od .OC .01


.~{ '~1:::~~


.oq .OC .OC .OC
.OC .OC .OC .oe
.0 .01
.01 .01'1
. o. .01
.01 . 0 l'
.01 .01
.01 . O.
.0. .01
.01 .01
.OC .OC .00
.OC .00
I
.Oe .00

.OC .00
.OC .00
.o~ .01
.01 .01
.01 .01
.01 .01
14 14 13 15 15 15
.02 .02 .02 .02 .0. .02
.OC .OC
I
.OC .OC .od .J .od
I I I
.0< .oh~oc

I
.~~ .oe .oq .00
.O~ .OC .00 .oe
-
I
.oq .00
.09 .00

.00 .00
.03 .01
.01: .01
.01 .OC
.01 .01
.01 .01
.01 .01
.00 .od
.0 1 . O~
.01 .00
.00 .011

i I

I

i !
14 i 13 ! 10 11
.O~ .O~ .03 .01
15 15
.0. .0.
TABULATED
~'" I)
DENVER.COLO.
SULFUR DrOXrDE
JU"IE 1968
11.12
DAILY
MEAN
NO
0'
HRS
S.MIN.
MAX,
.020 11 .07
.019 2C .04
.013 1e .04
.011 2( .11
.000 2C .02
.000 2 .03
 .. 
.001 l' .02
.00
11 .Ol!
.004
.00
.006 2. .05
.001 14 .02
.002 24 .02
.008 24 .04
.015 2 .14
.009 24 .05
.010 2. .07
30'
.020
.14
WE~.. SEP. 10. 1969
r-
I

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratoiY of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
U1
CC
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY     
OF     
MONTH 12.1  '-2 2-3 3-4
}    .Oc .OC
3     
4 .OC  .oe .oe .oe
5     
6* .OC  .OC 00100(
7*  , 
 , 
8  I 
9 .oq 
10 .00.0 .O~ .OC
  ! 
11 .02.0' .~g .OC
12 .oq.o . 01 .0
13*  ! .OC
1411 
15 . 0 ~ .OC .oe' 
Table 3-43
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
AM
--,-- -,- --,-,--'
4.5 5.6 6.7 7.8 8.9.1 q.10 10-11 11.12


.OC .00 .0 .0 .oq .oc .09 .00



o O( 00' oO( : g~ :g! :g( :gj :g~
--- -- .oc ,_.,0- .0 =-o~ .oc .00

.oc .00 .01 .0 .0 .OJ.O .01

.O~ .00 .0. .O~ .O~ 0.1
.OC .00 .01 .0 .O~ .O~ :O~ .01
.0. .07 .04 . .O~ .O~ .0. .01

.og .05 .04 .1 .~~ .01 .0' .00
.O(J .01 .0. .011 .OQ .0"..0 .01
.oe .00 .OC .O~ .OJ' .OC .OC .00
: .0 .01
.011.0 .0 .0" .O~ .02

.00 -~- ~'n-~H i .oe .01
.01 .03 .o~ .01 .Oli .oc .02
I ; 1 1

I ! I ! .O~ .01

.~IL .01..,.0Ij .01, .-:.~1f-~~-

! "
: I
.~ - I_~_+-
1- !-'-I
I ' I
!
i
I
16 .01 .0' .0 .o~ .O~
17 .01. .oe .oc .01 .OQ
18. I I
19 i I I
~----1l' ~-I -- -1-
22 !
23 . : i
24 I I
25 I
I .__. .~-- --..-
     1
     ,
I  '  :
 , 
 !  ;
I   I  i
   I
    I
    I
9 9 9  8 11111
.021 .05 .O~  .05 .031 .07
i   
26
27*
28*
29
30

31
MEAN
NO.
MAX.
::: Indicates Saturday or Sunday
Local standard time used
I
! I
14113 13
.041 .011\ .0.
i
!
I

! .0' .01
14 I 17 16
.O~ .0. .02
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
12-1
1-2
2-3
3-4
4-5
.OC .OC .0 .0 .OC .01

.0 .OC .OC .0 .01 .00
.OC .OC .OC .OC .Oc .00
.OC .OC .oe .O( .01 .00

.OC .OC .0 .01 .01 .00
.0 .01
.0, .01 .0
.01 .0] .0

.OC .0' .01
.0 .0 .0
.0 .OC .OC
.0 .oe .OC
.oe '.OC .OC
.01 .01 .00
.0 .0 .01
.0 .O( .00
.OC .OC .01
.0 .0 .01
.OC .OC .00
.OC .OC .00
.OC .OC .00
.0 .02 .0. .0
.02 .01.0 .0

.0' .01 .01 .0
.01 .01 .01 .0
.0
.0
.01 .01
.0 I .01
.0' .0' .0] .~] .OC .00
16 17 17 17 17 16

.0, .04 .O~ .01.0 .01
P,M,
5-6
B-9
9-10 10-11 11-12
6-7
7-B
.OC

.OC .O( .01 .01 .OC .00
.O( .o( .01 .01
.01 .01 .OC .OC .OC .00

.01 .O( .01 .01 .0 .00

.OC .~! .~! .01H .O( .00
.0 .0, .0, .0 .01 .00
.Oc .O( .01 .OC .OC .00
.01
.0 .O( .01 .0 .0
.0 .0 .OC .0 .01
.OC .OC .oe .0 .OC
.0 .OC .OC .OC .0
.OC .OC .OC .0. .0

.nc .OC .O~ 0 .0
.0 I .

.0 .0 .O~.O .0
.0.0 I
I
I
I
I
I
.O(
17 15
.0 .0
14
.0.
13111
.O~ .03
14
.0
TABUlATlED
.03
D£NI/ER.COLO.
SULFUR DIOXIDE
 JULY 1968
DAILY NO. S-MIN,
MEAN OF MAX,
HRS.
.003 1 .03
.005 1 .04
.003 2. .08
.001 11 .03
.002 2' .05
.005 1 .07
.006 2 .04
.010 2 .10
.012 2 .09
.008 .2 .05
.002 2C .02
.003 lC .03
.007 2 .07
.014 ~i .16
.009 .07
.010 II .02
.010 14 .03
.00
.01
.00
.01
'~
32'
:
.014.
.16
~E~.. S£P. 10. 1969
rr---
I
~ooo

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-44
Air Quality Section. laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department of Health. Education. and Wellare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
o~; ~.
MONTH 12-1
31*
CJl
~
MEAN
NO
MAX.
1
2
3*
It*
5
A,M.
1-2 2.3 3-4 4.5 5-6" '--6~---7~8 . -~'-~ T q~~-~~~TI-1'12


I I
~-:J. ~~( * -:~ -::~ :~(:: ,-::~. ~ :~. - ~-:~ -:~--

: J.O .0- .01 .0 .0 .O~ .O~.O .01
.0t:.0 .01.0 .021 .03 .0. .Oli .O~ .O~.O .01

i I I 1 I

! j' .04 i .011701
.~~ .~~ .~! .01 .0 .~~ .O~ .O~ :g~ :01
.0, .0, .0, .01 .0 .0- .0 .01 .01 .01
.01 .oe .oe .00 .0 .oe .0 .oe .oe .00

I I I--j--j
: .od .od .OC .od .00 .od .od .od .oq .OC .00
.O~ .O~ .O~ .OC .oq ~ .oq .oq .oq .oe .00
.-~~~r01i .0.. ~O~- .0'5 -~OJ- .O~-,._OJ .01!...:~_~
.01.0 .O~ .01 .001 .00 .00, . I :
.02 .01 .04 .o~ . .02 .0Z ; .o~ .00
I i I
I I ! : i i
~ I ,-,~.. ------~---~---1 :
.011 .01! .00 .00 .00 .011 .011 .011 .00
.01 .01, .00 .OC .00 .00 .O~ .Olt .O~ .02
.00' .On .O~ .OC .00' .00 .O~I .01. .01' .01!
.01 .011 .01: .08 .O~' .03 .Olti .05: .O~ .03!
i ! I! '
.of .01 .011 .01 .02! .01 .011 .oi .01 .021.0 .01

. .00 .01i .01 .011 .01 .011 .01 .01i .02 .01
1416 16'j17 16;1616116151611616
.O~ .01 .0' .08 .O~ .05 .O~ .05 .03 .O~ .05 .02
6
7
B
9
10*
11.
12
13
14
15

16
17.
lB*
19
20
.00 .oe
.00 .oe
. O~ .oe
21
22
23
21t*
25*
26
27
28
29
30
. o. .01
.01 .02
. O' .02
* Indicates Saturday or Sunday
Local standard time used
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
12-1
'-2
2.3
3.4
4-5
.oe .oe .oe .0
.0
.0' .0
.O( .OC .00
.OC .00
.0
.01
.OC .OC
.OC .~;
.0 .Oc
.OC .OC
.OC .0' .01 .01
.0 .01 .01 .00
.OC
.OC .01 .01 .00
.OC .00 .OC .0 .OC .00
.OC .og .OC .0 .OC .00
.OC .OC .OC .OC .OC .00
.OC
.01
.O~ .0' .03
.0. .O~ .0.
.0. .0. .0.
.01 .01 .01
.0. .01 .0,
.02 .o~ .02
.0. .0 .01
.0. .01 .01
.02.0 .01

.01 .01 .01
.0
.01 .01
.01
16 15 14 14 14 15
.02 .03 .02 .02 .03 .03
P.M
5.6
6.7
7.8
8.9
9.10 10.11 11.12
.OC
.0
.oc .OC .OC .OC .00
.oe .OC
.01 .OC

.OC .0
.0
.0
.0
.0
.0
.OC .OC .OC .01
.OC .OC .OC .00
.OC .00
.0 .0 .OC .01
.~~ .~~ .OC .OC
.0\ .0\ .og .0
.OC .oe .O~ .0
.~~ .0
.0 .0
-
.01 .01
.0 .01
. O. .0
.02 .011

.01 .01
15 15
.03 .0
15
.0
.OC .01
.O~ .01
. O~ .01
.~~ .01
.0, .03
I
~

.01! .00
.011 .01
.01: .01
.01 .01
I
.O~ .02

.01; .01
16 . 16
.03 .03
,
.O!I .0
.o~ .0
1
,
,
i
i
,
.00 .01
.ozi .01
.01j .04
.011 .01
I
.011 .0.

.0
16
.0
""t ,I...
DENVER. COLO.
SULFUR DIOXIDE
AUG. 1968
.005
.00
.007
.011
.020
DAILY
MEAN
NO.
OF
HRS.
5.MIN.
MAX.
.005
.007
.004
.003
.001
.004
.011
.009
.021
.009
.013
.012
.023
.013
.010
.023
2
.05
~: .11
1: .05
J .12
1/ .04
. 2C .05
1 .03
2C .04
2~ .03
22 .11
2~ .15

~ ~ .06
1 c .05
21 .04
2 ~ .06
2~ .11
2~ .15

2~ .06
371
.15
TABULATED
\tIEO.. SEPt 10, 1969
r
I

-------
'!'CONTINUOUS AIR MONITORING PROGRAM
Table 3-45
c:r>
o
Air Quality Section, laboratory of Engineering and Physici!' Sciences
Division of Air Pollution, Publ;: Health Service
U. S. Department 01 Health. Education. and Weltare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineedng Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
DAY
DF
MONTH
MEAN
NO.
MAX.
12-1
1*
2
3
4
5
6
7*
8<1
9
10
I
11 .~~ .0.
12 .oq .01
13 .O~ .OC
14* .O~ .OC
15* .00 .OC
~
16 .00.0
17 .011 .O~
18 .01, .oe
19 .O~ GOI
20 1
21*
22.
23
24
2$

26
27
28*
2911
30
* Indicates Saturday or Sunday
local standard time ,used
'-2
2-3
A~_u -- --
6-7 7.8 8.9 ~.10 10-11 11.12
3-4
4.5
5-6
.-
.0. .0 .0 .01 .0 .O~ .0. .0.
.0 .0 .OC .00 .0 .0 .0. .0
.OC .OC .01 .00 .0 .0 .0. .0<
.Oc .OC .or .00 .oe .0 .0. .0
.oe .OC .01 .00 .00 .0. .00 .oe

.- ----
.oe .OC .01 .01 .O~ .O~ .02 .O~ .0. .02
.0 .0 .O~ .02 .O~ .oc: .O~ .021 .0. .02
.oe, .oe .0'71 .04 .oit! .o~ .o~ I .oe .02
.09 .oe .o~ .00 .o~ .o~ .o~ .o~ .J .02

I I i ~' I

.J .oe .oq .00 -.J .0J.o -.oj ~o :.g~
~~~ .oe .oq .02 .o~ .0~.0 .o~ .O~ .02
.01j .01 .03 :.~4.. ~,!._~~~_..o~ :O~ .01 .01
'~9 .00 .oq .02 .o~. .O~ .o~ .021 .01 .02
.oq .00 .o~ .00 .0 .o~.o .o~ .Oi: .00
.00 ..0(1 .00 .00 .0 .00 .Oli .00 .OC .00
.O~ .0(1 .od .00 .0 .00 .OC' .od .oe .01
.Ol .00 'OJ'OO .0 I .0', .01 .02 .01 .00
. o. .00
.oe .01
.0 .02
.0 .02
.oe .00
.01 .01
26 26
.0" .04
.o~ .o~ .02
26 2" 28
.0 .oe .05
.0. .0 .0
26 2" 26
.o~ .O~ .0
12-'
.~~ .q~
.0. .0.
.0. .0
.0< .0
.0. .0.
.0
.0
.0
.0
.0
.0 .0
.0 .0
.0. .0
.0. .0
.oe .0
. O. . O.
.0. .0
. O. .0
. O. . O.
'-2
2-3
3.4
4.5
.q~ .q~ .0
.0. .O~ .0
.oe .oe .0
.0 .O~ .0'
.O~ .0. .0
.0 .0
.0. .0
.0 .0.
.0 .0
.0 .0
.0 .02 .02
.0. .o~ .02
.0. .0. .02
.0 .0 .03
.0 .0 .02
.oe .oe .oe .00
.0 .oe .oe .00
.0 .O~ .0. .01
.0 .0 .0 .00
.0. .0. .0. .02

.0. .02 .0. .02
.0 .o~ .O~ .06
.0 .o~ .0 .00
.02 .02 .0. .02
.01 .00 .oe .oe
.03 .03 .0. ..0.
.01 .01.0 .0
.oe .00 .oe .oe
.o~ .0.
.oe .OC
.OC .OC
.01 .OC
.oe .01
.02 .0
.01 .0
.oe .oe
.oe .oe
.oe .00
.oe .00
.02 .01
.02 .01
.oe .00

.oe .00
.0. .00
.oe ..00
.oe .00
.oe .00
.0. .0. .02 .02.0 .01
28 28 28 28 28 28
.o~ .03 .03 .o~ .O~ .06
P.M.
5-6
6-7
.02
.02
.02
.01
.01
.0
.0
.0
.0
.0
.0 .0
.0 .0
.0. .0
.0 .0
.0 .0
.oe .OC
.OC .0
.0 .oe
.oe .oe
. O~ .04
. O~ .0,
.OE .0
.OC .01
. O. .0
-
.oe .OC .oe
'~i .0. .0.
.0 .0 .OC
.oe .oe .0'
.oe .oe
.oe . (Ie
.oe .oe
.oe .oe
.0 .0
.0' .0
28 28
.OE .0
7-8
8-9
.o~ .1 .0
.0 .0 .0
.0 .0 .0
.0 .0 .0
.0 .0li.O
.0
.0
.0
.0
.0
9.10 10-11 11.12
. q, .02
. O. .00
.0. .01
. O. .02
.0 .01
.0 .0< .03
.0 .0 .01
.0 .0 .02
.0 .0
.0. .0 .02
.OC .oe .oe .00
.0 .oe .oe .00
.0 .oe .0 .00
.oc .oe .oe .00
.0 .0 .0 .01
.0. .0
.OE .oe
.02 .01
. O. .01
.0. .02
.oe .01
.0 .01
.01 .01
.oe .oe .00
.0. .o~ .01
.oe .oe .00
.0' .01 .02
.o~ .oe .oe .00
.0 .oe oDe .00
.0 .oe .oe .00
.oe .oe .OC .00
.0. .OC .oe ..00
.0
28
.1
.0
28
.0
.0 .01
28 2"
,.o~ .0.,
DENVER,COLO.
SULFUR DIOXIDE
SEPT. 1968
DAILY
MEAN
.030
.017
.012
.023
.013
.028
.018
.015
.031
.026
.012
.00.,
.013
.006
.009
.016
.034
.034
.019
.002
.01.,
.013
.014
.011
.005
.001
.001
.004
.015
.034
NO.
OF
HRS,
S-MIN,
MAX.
.q~ .q~ ~j .o~ .0 .02 .C1~ .0. .o~ .o~ .0. .(,2
.0. .0. .0 .0. .0 .02 .0. .0' .0. .0. .0, 002

.oe .oe .0 .oe oor .00 .oe .0. .0 .0 .0 .03
.0 .0 .0 .0 .0 .02 .0 .0< .0< .o~ .O( .04

.oe -_:~~~j' .oc _.o.~ ~o~- -~. .0 -'OJ ~~~ ~:_~

.0. .oe .0 .0. .0 .02 .0 .0< .0 .o~ .0 .03
.0 .0 .0 .0. .0 .02 .0. .O! .0.0 .02
.oe .0. .0.0 .01 .0 .0/ .0 .0 .0 .02
.0. .0 .0 .e/4 .0< .0 I .0& .0& .05
.0. .0. .0 .0 .02 .0 .0 .0< .0' .0< .03
.00 .oe
.00 .oe
.00 .oe
i
.02 .oe
.od .oe
.00 .oe
.00 ,tie
.00 ,00

I

.011 .01 .01 .01
!6 ; 27 26 2.,
.o~ toe .os .os
2/ .33
2/ .05
2 .08
2 .0.,
2/ .06
2
2
2
-2
2
.10
.09
.06
.0.,
.09
2~ .22
2~ .06
. 2~ .06
2~ .02
2~ .06
2~ .04
2~ .08
2~ .14
2~ .08
1! .02
2( .08
2~ .08
2 ( .06
2< .05
2( .01
2< .04
2< .04
2( .04
"
~
65~
.33
TABULATED
WED." SEPt 10, 1969
I
//It)01

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-46
Air Quality Section. laboratory of Engineering and Physical Sciences
~ivision of Air Pollution. Public Health Service
U. S. Department of Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
DAY
OF
MONTH
MEAN
C7')
.....
NO.
MAX.
}
3
4
5*
--
12.1 I 1.2

:g~ .0
.O~ .0
. 0 ~ . O.
. O~ . O.
!. -
.O~ .0
.oti .0
.Ol! .0
.02 .0
.02 .O~
6*
7
8
9
10
11
12*
13*
14
15
.13 .0.
.01: .0
.01 .o(
16
17
18
19*
20*
21
22
23
24
25
26*
27*
28
29
30

31
:(: Indicates Saturday or Sunday
local standard time used
2.3
A.M.
---. __m- -- - .-
4.5 5.6 6.7 7.8
--~.9 -i Q-:-IO ;~'T ,-,-.-;-;
3.4
12-1
'.2
.01 .01
.011 .o~
.01 .O~
,
"--1--
.~1 .O! .0
.01 .01 .0
.01 .O~ .0.
.01 .02 .0.
.O~
2-3
3-4
4-5
.0
.0
.0'
.0
.0
.0
.0
.0
.0
.0
P.M.
5.6
6.7
7.8
.-- --'-,---
8.9 9.10 10.11 11.12
..,. 'J ';'J.
SULFUR DIOXIDE
OCT. 1968
DENVER,COLO.
DAILY
MEAN
NO.
OF
HRS.
S'MIN.
MAX.
.Q( .Q~ .Q( .00 .01 .nt .01.0 '01' .00 .01 .01 .01
.0. .0 .0 .01 .0 .0 .0 .0 .0 .01 .0 .0 .0
.0 .0 .0 .01 .0 .01.0 .0 .0 .03 .0 .0 .0.
.0 .0 .0 .01 .0 .0 .0 .0 .0 .07 .0 .0 .0'
.O.! .0. .0 .01 .0,.0 .O~ .01 ~O~ .02 ~O_~~.-:.O.

.O~ .-0; .O~ .06 .O~ 'Oi .O~ .O~ .O~ .02 .~. .0 .0.
.O~.O .0 .06 .0 .0 .O~ .O~ .O~ .02 .0 .0 .0
.011.0 .0 .01 .O:~.O .02 .O;!l .Oli .01 .0 .021.0
.O~ .0. .O~ .01 .0 .O~ .O~ .03 .O~ .01 .0 .12 .0.
.O~.O .0:1] .02 .0 .0~-----1..:~'t~_O, .O~ .0 ~ .0

.! .02 I ! 11 J .o~ .~1 .0 .01.0
.O~ .O~ .06 .09 .051.0 .0' .O~ .O~ :C)l .0 .01 .o(
.O~ '01'0~' .03 .O~.O .O~ .O~ .011 .00 .0 .OC .OC
.0~.2 .0 .02 .O~.O .O~ .O~" .O~ .01 .0 .01 .0
I ! I .
! ----+-'-+--1: i
.01 .011 .od .OC .O~ .09 .,,~ .O~ .O~ .O~ .O~ .01
.02 .O~ .O~.O .021 .02 .O~ : I .02: .0"1 .01
.O~ .O~ .1~.1 .021 .02 .O~ .O~ .O~ .O~ .O~ .01

'05;ci~-.o-~: 'O!~O~- .02 --.OJ".01 .0J .0~-=-0-li--.Ol-
.00.0 .01 .01 .Ol' .02 .05 .04 .021 1.0 .02
.00 .01 .01, .01 .011 .02 .O~ .O) .01! .O~ .0. .02
.01 .011 .01i .01 .O~ .04 .01: .02 .01, .01- .01 .01
.01 .02L:~~1 _.0_= ._02. .O~ .O_~.~, ~O~ .0. .02

.02 .021 .0"1 .01i .02 : J .0. .O~ .O~ .0. .0. .0. .02
. ", . "i . O~ . ", ''': ." '°1 ,,0 I''': 'O'I'OZ ."." .0. ," . 0, .OZ



.021 .O~ .O~ .01 .Ol! .01 .O~ .02" .0J .O~ .O~ .02 .0 .0 .0 .02

.02, .02 .02; .03 .0'1 .03 .O~ .O~ .0;2 .02:.0 .02
24 23 24-' 25 24.i 23 23 I 21 21 23 I 25 24
.131 .07 .121 .20 .091 .09 .08: .08 .05 .O~.O .08
.01 .0 .0 .0 .0 .0 .01 .006 t .0'5
.01 .0 .0 .0 .0 .0 .01 .011 2. .04
.01 .0. .0 .0 .0 .0 .01 .017 24 .0'5
.02 .0. .0. .0 .0 .0 .02 .028 24 .12
.02 .0. .0. .0 .0 .0 .02 .018 24 .05
-----1-----1----
.~. .~. .02 .0. .0 .O! .0 .0 .03 .030 24.17
.0 .0 .02 .0 .0 .0 .0 .0 .01 .033 2 .15
.0 .0. .02 .0. .0. .0. .0 .0 .01 .0152~ .04
.0. .0 .02 .0. .0. .O~ .0~.1 .20 .038 '2~ .50
.0. .0 .03 .0. .0 .0 .1~.0 .06 .040 2 .28
.0 .0 .01
.OC .0 .01
.OC .O( .01
.0. .01 .04
.0 .0
.O~ .0
.0 .0
.0
.0
.0
u".--
.01 .01 .01
.0 .01 .01
.0 .01 .01
.0. .0. .02
.0. .Ol .0. .0 .0. .02
24 23 24 24 24 23
.oe .12 .O~ .O~ .O~ .04
.OC .0
.0 .0
.0 .0
.0
.01
.01
.O( .OC
.0, .0.
I
.0 .0
.01 .0
.0 .0
.0 .0/
.0. .0.
.0
.02 .02
22 21
.03 .06
.0 .1 .o~ .05
.O~ .0 .0 .06
.1/ .0: .O~ .09
.0
.OC .OC .OC .01
,02: .01.01 .02


.O~ .O~ .OC .01
.011.0 .01 .00
.olt! .O~ .Ol! .01
.O~ .O~ .O~ .01
.0;: 'on ."
i '
I
i
.02: .03

.03
21
.16
I
I
.02 .02
I
.03 .03 .03
2121:21
.1;2 .1~ .20
I
.023
.037
.025
.0",1
.014
.016
.028
.021
.014
.015
.019
.019
.020
.020
.018
.022
.040
1/ .20
2~ .30
. 21 .30
1~ .37
2c .29
2. .0'5
1 .43
2~ .25
2~ .12
2« .11
2' .17
l' .07
11 .04
1 .04
2
.04
54~
.50
TABULATED
WED., SEPt 10, 1969
1-

-------
[CONTINUOUS AIR MONITORING PROGRAM
Table 3-47
Air Quality Section, laboratory of Engineering and Physical Sciences
~ivision 01 Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Wellare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
a')
t\:)
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 4~226
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALVSIS
       DE~VER.COLO.
       SULFUR DIOXIDE
        ~OV. 1968
P.M.       DAILY NO. S.MIN,
     10-11  MEAN OF MAX.
5.6 6.7 7.8 8.9 9.10 11.12 HRS.
      .01 .023 ~ .07
      .02 .017 .07
      .02 .038 2 .25
      .01 .049 2 1.28
      .02 .018 2 .06
      .01 .018 2 .03
      .05 .035 2 .15
      .01 .036 2 .18
      .01 .018 -2 .05
      .01 .016 2 .05
      .02 .025 2 .11
      .02 .022 2 .05
      .01 .020 2 004
      .02 .018 2 .03
      .03 .022 2 .06
OAY      A.M. 
OF        
MONTH 12.1 '.2 2.3 3-4 4.5 5-6 6.7 7-8
1 .0    .0 .03 -.1) 
'2* .0    .0 .01 .0 
3* .0    .0. .02 .0 
4        
5 .0       
MEAN
NO
MAX.
-- --- - --
8.9
G.IO 10-11 11-12
'-2
2.3
12-1
3.4
4.5
6
.,
8
911
10*
.o~ .0
.O~ .0
003 .0
.O~ .0
.O~ 00
I
.O~ 00
.021 .0
.OZ .0
.O~ .0
. O~ .0
11
12
13
14
15
.02
25
.05
.027
~


c
~


.
60
.049
1.81
* Indicates Saturday or Sunday
local standard time used
TA8ULATED
WED.. SEPt 10. 1969
I
/100')

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-48
Air Quality Section. laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Weltare
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
1'1 '" .....
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
CONDUCTOMETRIC ANALySIS
DENVER,OLO.
SULFUR DIOXIDE
DE'C. 1969
0')
W
DAY 1-:-,---:--::--- A_M. --1 .-~-:T -- PM. r--r---- - DAILY
M~:TH 12.;! 1-2 -;7"'3-4 '~~;-~--6~;--1-7'8-. ~'-'9 -, ;-;'~-IIO-~;I'I-1'-~2- 12-' 1-2 2-3 3-4 4-5 5.6 6.7 7-8 8-9 9-10 10.11 11.12 MEAN


~II I .O( .Or .Or .0 .01 OJ .oj .o~ j .01 .0 .OC .0 .O( .Or .00 .or .O( .OC .O( .0 .00 .004
3 .O~ .O( .O( .O( .Or .00 .00 .0 .0 .0 .O( .Or .00 .O( .O( .O( .0 .0 .00 .001
. ..~.O .0, .0< ... .00 :g :g, :g :g':g .00 .0 .0< .0< .0< .0< .0. .0< .0< .0 .0 .0 .00 .002
5 .01 .O( .0(1 .O( .0' .00 .0 .0 .OJ .01 ._01 .02 -~-'-~+--=-~--~~~~O~~~- .O( .0 .0 .0 .00 .007

--;-- .0(1 .O! -.01 ~-Q( .01' .00 .0 .0 .ot .O~ .0;.1 .00 .0 .01 .01 .01 .01 .00 .O'H .q! .0 .0 .od .00 .002
711 .0(1 .O( .0 .O( .0 .00 .01 .01 .OQ.O .O~~ .02 .0 .0 .0 .0 .0 .00 .0 .0. .0 .01 .Oa .02 .004
811 .O[ .01 .0 .0 .0 .00 .0 .0 .00.0 .0 .04 .0 .0 '.0 .0 .0 .00 .OC .0 .0 .0 .O( .01 .010
9 .01.0.0.0.0 .OZ .0 .0 .od .OZ .0 .0 .0 .0 .01 .0..0 .0 .0 .0 .03 .017
10 .02 .0- .04 .O~ .O~ .03 .0 .O~ .O~ .o~ .06 .05 .O~ .0 .0" .0- .O~ .03 .0~.0 .0 .0 .04 .02 .038

11 .03 .0- .O~ .~~ .0: .01 .o~ .O~ .ot-'-0f: :oto1 .OC .OC .OC .~. .OC .01 .0 .0 .0 .OC .OC .00 .012
12 ..0000 ..OO~~ ..Ooq ..O~~ ..00~0 ..000° .0 .6a. .Oa ~O .0 .00 .OC .OC .OC .OC .O! .00 .O( .O( .OC .O( .OC .00 .000
13 "q " .0 .O~ .021.0 .0 .01 .OC .OC .OC .OC .O( .00 .O( .O( .0 .o~ .O~ .03 .006
1411 .02 .O~ .~~ .0. .0 .05 .051 .0it! .O~.O .O~ .03 .O~ .0' .0" .01 .01 .0 .0 .0 .0 .O~ .03 .031
1511 .02 .o~ .0, .0~.1 .10 .O~ .011 ,01! .01 .011 .00 .01 ,OC ,OC .OC .Or ,00 .O( .OC .OC .0j.0 .02 .022

16 .01 ,oq .011.0 .0. .03 - -:ot .oJ~6~ -1 .O~ .03 .0 .0 .0 .01.0 .01 .OC.O .01 .O~.O .06 .025
~~ :g~ :g~ :g~ :g~ :g~ :g~ :g~ :g~ :g~ :g~ :g~ :~~ :g~ :g~ :g~ :g~ :g~ :gg :g~ :g~ :g~:g :gc :gg :g~Z

19 .O~ .O~ .O~ .o~ .041 .01 .oq .01! .011 .0Zj .o~ .00 .oq .og .01 .01 .01 .01 .01 .01 .0g.0 .01- .01 .009
20 .03, .OC .O~ .00. .03 .00 .01: .01 .01, .01: .OC .00 .oc .09 .oc .00 .oc .oc .09 .O( .o~ .004

21* ..-00-00 ..0~~-..Oo-ll---=-.oo-I~.00d,- ..0000 .od .00 .oq .od :~-~-------:O( .OC+-:OC .OC--:O(-:-OO .~~ .OC .od .or .O~ .00 .000
22* " ~ .00 .O~ .01! .09.0 .00 ,oc ,O( .oc .oc .OC .01 .0, .oe .00 .Ot .O~ .00 .002
23 .00 ,OC .0 ,0 .O~ .01 .O~ .00 .oq .O~ .O~ .. .q~ .q. .O~ .q: .03 .~; .0 .O~.O .Ol! .00 .015
21t .01 ,OC .0 .0 .O~ .01 .01: .Ol .o~ .O~.O .01 .0' .0, .0' .0 .01 .02 .0 .0] .O~.O .O~ .01 .015
25 .00 .01 ~j~ .OJ :_00 .~-~- .0_1,- ._OJ ~Olj~,-~~ .0 ,DC ,OC ,OC .OC .00 .OC .OC .O! .0~~1 .00 ,003

26 .00 .OC .O~ .00 .09 .00 .0~1' .OJ. .011 .01i .or .00 .OC .01 .01 .01.0 .00 .~~ .OC .oq .OC .O~ .01 .006
27 .00, .O~! .oq .00 .00 .00 ".1' .01 .021 .01! .OC .00 .OC .OC .OC .OC .OC .00 .0, .OC .00 .09 .00 .00 .002
2811 .00 .00 .00 .OC .00 .00 .0 .oi .01 .021 .0. .02 .OC .OC .O( .OC .OC .00 .OC .OC .Od .00 .02 .02 .006
2911 .00 .oq .oq .OC .O~ .00 .0 .00 .oe .01i .OC .01 .OC .OC .OC .O( .OC .00 .OC .OC .oq .O~ .02 .00 .002
30 .00 .01 .011 .01 .021 .00 .0 .01" .01 .Od .01 .00 .01 .0..0 .01 .01 .00 .OC .OC .OC .OC .01, .00 .007
; . i I ,[ d
31 .00 .01 .02: .02 .OZ! .02 .01! .011 .0' .O~ .0' .01 .01 .01 .0' .01 .04 .0, .0] .01 .O! .00 .014

MEAN .01: .01 .01:1: .01 .021 .01 .01! .011 .O~ .011 .O~ .01 .01.0 .01 .OC .01 .01 .0£ .01 .OC .0 .O~ .01 .010
NO 29 ,30 30 30 30..1 30 30 i 29-, 30 2~.1 28 26 28 29 30 28 29 30 30 30 30 30 30 I 30
MAX. .0'11 .09 .05 .09 .141 .10 .05i .0, .08 .OJ .o~ .05 .O~ .0 .03 .03 .O~ .03 .O~ .O~ .0' .O~ .O~ .06 .038
:,': Indicates Saturday or Sunday
Local standard time used
NO
OF
HRS.
5-MIN.
MAX.
2 .04
2' .0'5
2' .04
Z' .09
2' .04
2' .04
2~ .18
-2 .OA
2~ .12
Z .oe
2' .03
. Z' .11
2 .1e
21 .17
2 .22
2~ .15
2~ .04
2~ .17
2. .05
2 .02
2. .05
2 .07
2 .06
2~ .03
2( .07
2( .04
24 .05
2( .04
2( .06
2. .05
70'5
.22
"
TABULATED
WE~.. SEp. 10. 1969
I

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 2-49
(;1')
~
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
  OE"IVER,COLO.
 TOTAL HYOROCARBO"l
    JAN. 1968
  DAILY NO. 5-MIN
 11-12 MEAN OF MAX.
 HRS.
3. 2.6 2.96 2 6.2
 2.7 3.11 1 6.9
 3.3 3.31 2 17.6
 1.9 2.90 2 9.3
 4.5 2.83 2 6.0
 6.1 4.94 2 8.9
 2.8 4.10 2 8.0
 4.9 3.60 -2 e.3
 6.7 6.40 Z 13.3
  4.46 2 10.3
  3.88 2 9.4
  5.37 .2 18.0
  3.29 2 5.7
  5.44 2 16.9
  6.24  
  3.61  
  4.30  
  4.79  
  4.66  
  4.18 2 9.1
  5.04 1 9.7
  4.51 2 15.3
  4.14 2 12.8
  3.29 2 5.6
  3.24 2 5.7
  3.13 2 4.7
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
OAY
OF
MONTH
MEAN
NO.
MAX.
1
2
3
4
5
A.M.
P.M.
12-1
'.2
2.3
4.
2.
2. 2. 2. 2.
2..2. 2.~2.

~: -E'i"--~---~:!'- ~: .

8 7. 5. 4. 4.
9 J. ,2. 2. 2.
10 5.41U. 6. 5.
11 '.4 9.
12 2.6 2.
1311 5.~ 4.
1411 4.0 3.
15 3.1 3.
 , 
16  
17  
18  
19  
2011  
2111 3.9 
22  
23  
24  
25  
26  
27tr.  
28ft  
29  
30  
31  
3.7
26
5.8
3. 3.
26 26
9.1 6.
(: Indicates Saturday 01 Sunday
local standard time used
TABULATED
4.15
58
6.40
18.3
WEO.. SEP. 10, 1969
I
ACOh

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-50
Air Quality Section. laboratory 01 Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
DAY
0,
MONTH
21
22
23
24*
25*
26
27
28
29
MEAl\;
a')
CJl
NO.
MAX.
1
2
3*
4*
5
1-- -- r-:-::I- A.M. ,-- P.M.
12.' '.2 ;:;-~I 4.5 I--;:;;-~ - 3.2; 3.0 3.1 2.~ 2.e 2.( 3.4 3.6 3., 3. 3.4 3.9 3.0 3.2

I I : i I : i : I


3.2: 3.13.0\ 3.0 3.b 5'~15.~ 4.0: 3.~ 3.3 3. 3. 3.~ 3.~ 4.14.1 3.E 3.~ 4.~ 4'~1 4.Q 3.6
22-' 22 22: 22 22: 18 ' 21J 19 i 20 20 22 21 22 21 21 21 22 22 22 i 21 ,22: 22
5.'! 5.3 4.1I! 4.1 6.5:11.~1l.81 5.~ 4.' S.O 4.~ 6." 6.~ 5. 1~~ 6.6 s~e 1~qO'412'911.8 6.6
6
1
8
9
10*
11*
12
13
14
IS

16
1711
1811
19
20
4.0 3.~
20 . 21
1.1.41 6.2
* Indicates Saturday or Sunday
local standard time used
TABULATED
-r...; J.
f')ENVER.COLO.
TOTAL HYDROCA~80N
FEB. 1968
DAilY
MEAN
NO.
0,
HRS
S'MIN,
MAX.
3.90 2418.4
5.11 2 15.4
5.01 1~ 10.R
4.22 2 1.8
3.66 2H 1.1
3.01 2~ 5.2
3.10 1 < 5.1
3.32 2 6.1
3.57 2' 6.0
4.16 2 6.5
3.43 2 5.2
3.38 2~ 1.3
3.09 2( 7.6
3.61 2~12.4
~.11 2~ 9.1
3.114 2~ 5.9
3.15 24 8.1
3.20 2~ 7.6
2.90 2 5.6
3.14 21 8.1
3.64 2. 7.2
3.26 U 5."
3.29 4.8
3.13
5.71
50e
18.4
WED.. SEP. 10. 1969
,.

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-51
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution. Public Health Service
U. S. Department of Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
f:')
f:')
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
A,M.
P.M.
DAY
OF
MONTH
MEAN
NO.
---.--
7.8 8-9 q-1Q 10-11 11-12
7.8
8.9
9.10 10-11 11-12
1.2
2.3
5.6
6.7
12-1
2.3
3.4
5.6
6.7
3.4
4.5
1.2
4.5
12-1
1
2*
3Q
"
5
3.~ 2.~ 2.! 2.! 2. 2.1 2.~ 3.~ 3.~ 2. 2.5 2. 2.~ 2.~ 2. 3.~ 3.4 4., 6. 5. 4. 4., 4.4
~" 3." 3., 2~! 2.< 3.3 3:~ 2:~ 3., 2~~ 2~' 2.9 2. 2.' 2.e 3.~ 2.< 2.8 2." 2. 2~' 2~' 2." 2.5
2.~ 2.~ 3. 2. 2. 2.3 2.~ 2. 2.~ 2.- 2.' 2.4 2.' 2.' 2.' 2.~ 2.~ 3.2 4.~ 5. 3. 2.' 2.~ 2.1
2., 2." 2. 2.( 2.' t.6 2.< 3.' 3.' 2. 2.8 2.~ 2. 2. 2. 3. 3.9 3.~ 3. 3. 3./ 4. 3.2
2.' 2.' 2. 2.~ 2.~ 2.6 3.~ 2.e 2.8 2. 2. 2. 2.e 3.~ 3.5 3. 3. 3.- 3.( 3.~ 3.2

3~(-2.! 2.! 2.! 2.8Z'-9' 3.~--7.- 6:'~ 5~ .-: '3.7 3. 3.e 3.~ 3. 4..4":1 4. 3.23.( 4.- 3.1 3.6
3.( 2.! 3. 3. 3.2 3.1 4. 4.' 5. 3.7 3. 3.( 2.' 3., 2. 2. 2.8
2.' 2. 3. 2.' 2. 4!.8 3.~ 3.~ , ,2.; 2.1 2./ 2.~ 2. 3.e 3.< 3.2 2. - 2. 2.E 2.' 2./ 2.8
3.~ 3.( 3.~ 3.e 3.~ 3.2 2.E 2.E 3.1 2.~ 3. 3.2 3. 3.~ 3.- 4.e 3. 3.0 2.< 3. 2.E 2. 2.! 2.7
2. ~ 2. ~ 2. ~ 2. 2. ~ 2.3 2. ~ 2. '~I-~' ,~. 9 2.7 ' 2. 2. 2. / 2.. 2. ~ 2.6 2. E 2. E 2. E 2.5 2. 2.6

2.61 2.~ 2.~ 2.'5 2.~ 2.1 2.~ 4.~ 4. 3.~ 3. 2.8 2.E 2.a 2.1 3. 3.~ 3.3 2.~ 2. 2.E 2.~ 2.~ 3.0
3.~ 2~' 2.8 2. 2. 2.1 2.8 3.31 3~C 3. 3. 2.~ 2.~ 3.< 4., 3.1 2.< 2.~ 3.~ 3.~ 3. 3.3
3.~ 3.0 3., 2.~ 2.3 2.4 2.~ 3.~ 3.~ 3. 3.~ 4.5 3.~ 2.8 2.8 2.! 3. 3.4 4.' 5.~ 4. 4.~ 4.~ 4.1
2.1, 2.'5 3.1 2.~ 2.~ 2.3 2.~ 3.~ 3.~ 2. 2.~ 2.6 2.~ 2." 2.~ 2. 2.! 2.6 2. 2.' 2.E 2.'5 2.E 2.6
2.~ 2. 2.'5 2.' 2.~ i.1 3'9 3.~ 3.~ ~ 2.Q 2.5 2.~ 2.8 3. 3.~ 3.1 3.! 3.~ 3.~ 3.E 2. 2.8

2.~ 2.~ 2.~ 2.~ 2.~ 3.;-i.-:d-4. ~ 6.3 6.e 5.7 3.~ 3.E 3.3 2.8 2.! 2.9 3.' 3.~ 5. 5.E 6.~ 5.0
3.3 4.~ 2.1'1 2.~ 2.31 2.4 2.~ 2. 2.loi 2.2 2.. 2.2 2. 2. 2. 2. 2. 2.4 2. 2.~ 2.~ 2.~ 2.~ 2.3
2.~ 2. 2.~ 2.~ 2.~ 3.0' 3.10\ 4.~ 3.d 2. ~ 2. 2.8 2.f 2.e 2.e 2.8 2. 2.8 2. 2. 2.!. 2. 2.f 3.0
2.~ 2. 4.~ 3. ~ 4.~ 3.6 3. ~ 3.~ I 3.~ 2. 2.6 2. 2. 2.e 2. 3. 3.0 2~~ 2. 2. 2. 2.< 2.1


'f"-2.:-2-.~1_2."-2.-~1-2'. ~ I .1 I J---..----.----------
- ~ 2." 2.~ 2.~ 2. I 2.E 2.6 2.E 2. 2. 2.~ 2.~ 3.1 2.e 3.' 3./ 3.~ 3.~ 3.2
3.2 3. 2. 2.~ 2. 2,.4 2.1f. 2.tI 2.=), 2.3 2. 2.1 2. 2. 2. 2. 2.~ 2.3 2. 2. 2.' 3. 3. 4.2
4.4 3. 3.~~. 3. 2.8 2.~ 2.5 2. ~ 2.i 2.e 2.0 2.e 2.e 2.C 2~C 2. 2.1 2.. 2.3 2.~ 2.( 2.! 2.6
2 . 2j 2. ~ 2 . 1, 2.~ - 2.~ 2.. 4 ~ .. ~ 3. ~ 3 ~ l ~ J 2 ~~ 2 . 4 2 . 2 . . 2 . ~ 2 . ~ 2 . ~ 2 . 6 2 . E 2. e 2 . e 3. 2 . ~ 2 . 5

2.~ 2.~ 2.~' 2.11 2.'. 2.3 2.a 3.1! 2.~ 2.41 2.4 2.3 2.~ 2.~ 2.~ 2. 2.~ 2.6 2.~ 2.3 2.~ 2.1 2'0;1 2.2
2 . 1. 2. ~ 2 . 2 . u 2. 2, 2. 4 3 . 31 4. 2. 3. 11 2. 6 2. 2. 7 2 . a 2 . a 2. ~ 2 . 2 . ~ 2. 1 2 . c 2. ~ 2 . e 2. c; 3. 3 . 0
2.8 2.1 2. 2.4 2.4: 2.5 2.~ 3..., 4.~ 3.11 2.e:! 2.6 2.11 2.8 2. 2.~ 2. ~ 2.5 2.~C 2.~ 2.. 2.3 2.8 2.9
2.6: 2.7 2.~ 2.2 2.11 2.1 2.~ 3.~ 3.='1 3.0. 2. 2.5 2.6 2. 2. 2.~ 3.~ 3.1 3. 3.~ 3.14 3. 3.tcI4.0
3.2' 2.7 2.6! 2.3 2.,,1 Z.5 2.,2.8: 3.0 2.'2.111 2.4 2." 2." 2.3 2.~ 2. 2.4 2.42. 2.':! 2. 2.1! 2.2

2. ~ 2.2 2.1 2.1 2.'1\ 2.1 2.11 2. ~ 2.1 2.1 2.1 2.1 2., 2.' 2.2 2. ~ 2. 2.2 2.lc 2. ~ 2. 2. 2. ~ 2.3

2.9' 2.8 2.8 2.~ 2.~ 2.6 2.~ 3.~ 3.~ 3.1 2.e:! 2.8 2.~ 2.~ 2.~ 2. 3.C 3.0 3.C 3. 3.C 3.C 3. 3.('1
2~ 29 29 29 29 29 29 26 24 27 29 28 29 27 29 28 29 28 28 28 28 29 29 29
5.0 4.1 4.5 3. 4.te 3.6 4.11 7.':! 6.5 6. 6.0 5.7 3.e:! 3.6 3." 4.0 4.1 4.1 4." 6. 5. 5.e 6.~ 5.0
i
6
7
8
911
10*
11
12
13
14
15
16!i1
17"
18
19
20
21
22
23-
24*
25
26
27
28
29
3011
31*
MAX.
DE~VEA.COLO.
TOTAL ~YDROCAR80N
MARC~ 1968
DAILY
MEAN
3.33
2.91
2.81
3.06
2.94
3.82
3.32
2.81
3.0'5
2.50
2.99
3.05
3.45
2.64
2.99
4.14
2.52
2.81
2.94
2.76
2.55
2.'55
2.63
2.37
2.13
2.72
2.84
2.48
2.19
2.89
4.14
NO.
OF
HRS.
S'MIN.
MAX,
2 1.9
24 6. '5
2 6.3
2 6.7
2 4.7
24 9. '5
1 9.0
2~ 6.2
2~ 6.3
2lc 3.2
2~ 7.2
2. 5.4
'2~ 6.3
2~ 4.2
2 5.1
2(12.1
2( 6.6
2 6.5
2 8.1
2~ 3.9
24 5.1
2~ 5.1
24 4.5

2~ 4.4
2~ 5.2
24 5.1
24 5.9
2~ 3.7
24 2.8
61
c



.
12.1
* Indicates Saturday or Sunday
local standard time used
TABULATED
WED.. SEP. 10. 1969
I
)100"7

-------
CONTINUOUS AIR MONITORING PROGRAII
Table 3-52
Air Quality Section, Laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health, Edocation, and Welfa"
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY
OF
MONTH
~
-1
MEAN
NO.
MAX
_.
12.'
A.M.
-
~.10 10-11
'.2
2.3
3.4
5.6
6.7
4.5
7.8
8.9
1
2
3
4
5
2.' Z.~ 2.! 2. 2.~ J.4
2~( 2.1 2./ 2.1 2.1 Z.5
3.C 3.! 3.0
2.c 2. 2.7
4. 4.' 4.
3~' 3~c 3.
4.( 3. 3.4

i.' ~;- 3.r.

2. 2. Z. 2.
I
I
1
I
3.Z 3.4 4.. 4.1

. .----.-. .- -.- --.. ---.-- -.-
3. 2.1 2.1 2.1 2.' 2.' 2.' 2.6
2. l.3 2. 2. 2. 2. 2. 2.3
6.
7.
8
9
10
11
12
13.
14.
15
I 12.. '.'

2.~ 2.1 2.~ 2.1 2.~ 2.3 9. 3.~ "." 2.~ 2.1
1.i 1.~. 1.~ 1. 2.' 1.9 2. 4.1 3~~ 3.~ 2~e 2.4

I . I 21~ 21~ 2.~ 2.5
4.0!."':'8~~~ 1.1I!. -~- 1.9 --2._~1 2.2:. 2.1 .!-"~~~ 1.8
2.bi 2.1 2.~ 2.2 2.1 2.6 . 2. 2.~ 2.e 2. 2.1 2.0
2.1' 2. 2. 2.1 1. 2.0 2':1 3.4 3;~ 2;~ 2.7
2. '7 2. 2. 2.~ 2. ".4 2.~ I ~ 2.2 1.9
Z.O 1.8 1.~ 1.~ 1. 1.6 2.0 3.2: 3. 2. 2.~ 2.1
1.6, 1.~1~~~_1.~ 1.~" ~j.~._'--2-"_~ ~..:~~:8
2.0 1.~ 1.~ 2.~ 1.,.: 2.0 2.~ 2.B: 2.1 I 1.8
2 . 3, 2. ~ 2. ~ 1. ~ 1. 5! 1. 5 2 . ~ 2. 1; 2. C!~ 1. ~ 2. ( 2 . 1
2 . 0 2. ( 2. I! 2. d 2. t 2. 2 2 . ~ 1. ~ 1. 1 . 5 1.' 1 . 6
1.1 1. 1.~ l.q 2.1'1 2.5 3.~ 3.1: 2.1 1.~ I~F 1.8
1.7 1.6 1.6: 1.4 1.t.1 2.0 2.4i 2.9 2. 2.212.. 2.1
. i ! i j I
I ill I I

2.61 3.UI2.7 2.512.32.3
1~'117'118 16cl17 19
4.~ 4.5 4.3 4.~ 3.8 3.3
16
11
18
19
20.

2h
22
23
24
25
26
27*
28*
29
30
2.3: 2.3 2.3; 2.2
17'1818118
4 . 01 4. 0 3. 8 5 . 4
2 . 11 2. 3
17! 18
3. 11 3.4
~: Indicates Saturday or Sunday
local st:lndard time used
     P.M.       DAILY NO, SOMIN.I
     5.6 6.7 7.8 8.9 9.'0 10-11 11.12 MEAN OF '::l
     HRS
      ..       
     2.6 2. 2. 2 2 ~ ~ 2. 2.7 2.93 2
     2.q 2. 2. 2: i 2. 2. 2.3 2.74 2 4.1 
2.1 2.1 2.1 3.( 3. 3.7 :!. 3.' 3.. 3. 4. 3.3 3.48 21 5.4 I
2. 2. ~ 2. 2.1 2.1 2.6 2.' 2.1 2.' 2.' 2.1 2.6 2.79   
2. 2. 2. 2. 2. 2.4  1. 2. 2.~ 2. 2.9 2.41   
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
11-12 12-1
'.2
2.3
3.4
4.5
2.~ 2.4 2.1 2.~ 3.
2.1 2.1 2.1 2.( 3.
3.2
3.e 3.e 3.e 3.. 3. 2.8 2. 2. 2.. 2.. 2.~ 3.0
  2.~ 2.~ 3.( 2.6 2. 2 ~ ( 2.( 1. ~ 1~~ 1.7
2.~ 2. e 2.~ 3.3 4.( 3.2 2. 2. 2.. 2. 2. 2.5
2.~ 2.. 2.. 2.4 3.( 2.8 2.1 2. 2.' 2.~ 3.1 3.3
1.~ 1.~ l.e 1.~ 2.( 2.1 2.. 2.f 3.. 3.( 2.1 2.4
2.e 2.~ 2.C 2.1 2.e Z.4
2. 2., 2.1 3~C'. 2.:
1.~ 1.~ 2.C 1.~ 2. 2.2
1.e 1. 1.~ 2.1 3.( 2.3
1.e 1.~ 1.~ 2.1 2.1 2.5

I.! 1.~ 2.) 2.) 2.' Z.O
2.1 2., 1.E 1. 1.1 2.1
I.! 1. 1.f 1. 1. 1.7
I., 1.~ 2~~ 2. I.B
1.~ 2.1 2.e 2.~ 2.( 1.9
2.2 2.2 2.l 2.4 2. 2.5
19 18 20. 20 20 20
3.0 3.0 3.0 3.3 4.e 3.7
2.4 Z.~ 2.~ 2.~
2.4 2. 2." 2.-
1.( 2.1 2.4 2..
Z~, 1.\ 2~( 2.1
1.( I.E 1. 1.
-~
2. 2. 2.1 2..
I.' 1.~ 1.8 2.
1.1 2. 2.~ 2.
l~c Z.' 2.~ 2.1
I.' 2. 3.3 2.~
z. 2. ~ 2.~ 2.4
19 20 20 1 20
3.~ 3.~ 3.~ 3.
2.~ 2.2
2.- 2.5
2.~ 2.1
2., 1.9
1. I.B
--1-'
2.0. Z.3
Z.o. 1.9
2.q 1.7
1.~ 2.1
3.1' 3.6
I
I
Z.to! 2.4
20 ! 20
4.11 3.6
TABULATED
.;
'.
.,.'"'~
DENVER,COLO.
TOTAL ~VDROCARBON
APRIL 1968
2' 13.3
2 3.6
..
2.77 14 4.6
2.34 2 4.4
2.55 2C 6.5
2.53 1/ 4.4
2.38 24 5.1
2.18 ~j 3.1
2.';3 4.0
2.19 21 3.2
2.16 2C 5.6
1.90. 2C 3.3
2.06 2~ 3.6
1.91 2j 3.2
1.85 2~ 2.9
2.1::1 2 4.9
2.22 2~ b.5
2.39  
 4411
3.48 13.3
WED.. SEP. 10., 1969
r
I

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
Cf')
CC
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45116
DAY
DF
MONTH
MEAN
ND,
Table 3-53
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
12-1
2,3
3-4
A,M.
4:5 - ~~. --6~- 7.8'-
1.2
'.2
1
2
3
411
511
30< 201 10~ 10,; 1. 202
20C 20. Zo' 10< 10~ 202
1. 10 10~ 1.~ 1. 203
20 20 20 30 30 ZoZ
20( 1.1 10! 1.1 10< 108

10' ui-:-; I:' 10E - I:' 200
1.~ 10 10 10 1~< 105
20~ Zol 30 3.( 3.- 3.6
1.~ 1.1 1. 1. Z~C 206
1.' 10 10! 10 1. ~05

10~ 10~ 1. I 1. I 1.~ 108
1.~ 10~ 1.9~ Z.~ Z..~ 20Z
1.~ 10 10 1.~ 10 208
z.ci Zo' ZO~ 30~ Z. 20"
105 10Q 10 1.$ 1. 109

1 ~- i 0 ~ 1 0 -i-:-J'1 ~ ~ 2 0 0
10~ 10~ 10 i:~ 1.~ 109
1.6 10~ loti 1.~ 1.~ 105
20~ 20 Z09 1.~ 1.9, 109
1'1 l'll'll'[l'l"l

108 10~ lo~ 1.~ 10~ 108
10~ 10~ 1.~ 1.~ 1.~ 201
ZOJ_~ 20J-~J 3051 303

lo~ Z.~ Z.g 10~ 1.~ 1.9
1.9 1.~ Z02j Z.2I Z.4I Z08
20'~ Ito! 201\ 3.31 2.61 Z.5
202 Zo. ZoO Zo~ 3.~ 1!05
303' 30 Z Z 0 ~ Z 0' Z 0 11 Z 0 1

Zo llzo, Zo~ ZoC Z.~ Z08

ZoO' ZoC 10~ Z.C Zol Z03
29 29 Z9 Z9 29 Z9
303 401 30~ 3.5 305 306
6
7
8
9
10
1111
1211
13
14
15

16
17
1811
1911
ZO
21
Z2
23
Z4
2511
2611
27
28
Z9
30

31
MAX.
* Indicates Saturday or Sunday
local standard time used
-- - -- -_.
8-9 q.IQ 10-11 11.12 12.)
2.3
4.5
3.4
3.j3.E zoe 10~ 10~ 107 10 lo~ 10~ 20 20~ 106
3. 30~ 20,: 1.7 10~ 10 10 2. 201 107
3. Zo 10~ 10~ 10~ 200 10 20C Zo. 20/ 20 Z.l
2. 2. 20lj 20l 10 ZoO 10 10 10< 10 10 101
- ~~e 1. .. 10, ~o_< ~o( 1.~ ~~ 1.1 1./ 1. 101 1.1

20' 20' 20 20 10< 107 10 10! 10c 204 2. 108
20 101 101 109 10< 20\ 2. 20~ 20 108
4. ~ 4.' 3. Z 0 e Z .;~. 9 Z 0 20 201 Z 0 / 20 1.9
3. 20~ 203 ZOJ 20 109 10C Zo 20 Zo/ 20' 200
3.~ I 2.1 Zo 2. 2. 20 2.' 109


~:~ ~:j1 !J!:~ l" !~C!: !:; !:' ::: !:' :::

1 ~ 109 1 ~ l 8 20C 2.' 1. 20C 10 1.6
~oaJ1_20 \_2:, ~~j 2:~~:~ 10~ 2., 10c 20c 10c 101

2.5 20"1 Zo 203 ZoE 20~ 20, 3.4 2.C ZoZ
Z. 2.~ 2.q 20q 10. 200 10~ 10e Zo 20 20C 101
1.~ 1.7, I I 1. 1.5 10E 10~ 10 loB 1.C 1.1
10~ 10~ lo~ 1.~ 1.~ 1.5 I.' 1.~ 109 10~ 1./ 1.'5

30] 20' 203\ I -- --. loB ~~- 2~~~~

2.~ 20~ ! 20C 201 10~ Zo( 201 2.° 201 1.9
204 2.2 20111.~ 2.5 Zo' 20 20' 20~ 2.' 2.0
30 Ii 30 7. 3:~ 209 201 202 Zo~ 3. 3. 3.4 20c Z.5
20J 203, Z-,,-- 20311 ~- ~~. Z03 201 Zol Zol 20C 109

2. ~ 1 0 ~ 2. C 1.'8 1 0 ~ 2 0 ~ 2. 1 . c 10 e 200
3.~ Z.5 Z." 20~ 1.~ 1.8 10~ 2.. Z~( I.~ 1.i 1.9
20E 30~ 2.~ 203 20- 2.2 10e 1.~ 20' 2. 20 108
Z.~ ! 20c 3. Z.6
20C 201! 203 201 20C 200 Z. 20 202 ZoC 20C ZoZ
I

304 206 204 20~ 204 203 .Z04 20E 20° 3.~ 2.E Zol

20 205 202 201 20C 109 20C 20C 20 20 20 109
23 25 26 23 27 28 28 28 29 30 30 30
402 405 3~" 209 204 205 ZoE 30 30 ~ 304 301 Z06
P.M.
5.6
6-7
7.8
f:~ f:~ f:~

Zo Zo 20
10e 20C 20
10c 1.1 101
8.9 9.10 10.11 11.12
Zo~ 20 109
lot 10 108
20 Zo~ Z06
Zo Z.. 108
1.1 10 106
OENVER,COLO.
TOTAL ~YOROCARBON
"'AY 1968
10 101 101 10< 10' 105
10 20 20 20/ 20' ZoO
ZoC 20 Zo 1./ 101 109
1.e 10 10 101 101 109
Zo~ 2. 20( 20 Z. 108
10~ 2.1
201 2.
10! I.!
10E 1.E
10 1./
10 101 Zo. 20~
10 10E I.E 10e
1./ 101 10 10E
101 10/ 101 10~
10-S 20C 2. 20E
10E 10E 1.~
10e ZoC ZoC
Zo~ 2~' Zo
10~ Z.- 20
Zo: Z.; ZoE
10< 2.' ZoC
2.( 2., 2.4
20 30 30
20': Zol 20
Zo': Z 0
10e 10~ 20
20 20~ 20
1. 10 10
20C 1.E 10
10E 10 10
10e 10e 1.8
10~ 10~ 108
20 30E 303
2., 20~ 205

Zo' Zo~ ZoO
20 20 2.4
2.4 2.' 2.1
3~c 3~i 4.3
20E 20~ 201
20
20C 1.c 109
10~ 108
10< 106
10 108
10' 1.5
20 109
10~ 20C 20' Zol Zo 2.0
30 30 301 30 30 30
Zo 3. 30 30/;1 3./;1 4.3
TA8ULATED
DAIl.Y
MEAN
2.14
2.01
2009
2.1Z
1.76
1.8Z
1.85
2.57
2.10
2.13
200
104
107
105
107
1.86
1.96
1.73
1.98
1.83
ND,
OF
HRS.
5.MIN.
MAX,
2.18
1.84
1.65
1.60
2.08
2.04
Zo04
Z.60
2.33

Z.07
Z.15
Z.40
2.96
2.Z3
2.38
Z.08
2096
2~ 405
2~ 501
2~ 401
Z' 909
24 302

2 306
2 208
2 503
_ZE 4."
2C 400
2~ 2.,.
24 306
2 406
'2. 502
24 ~04
2. 601
24 309
2 302
2 2.8
111 5.0
IE '!I 0 B
2; 408
ZC 701
zc 501
~. 409
ZC 6.9
211002
IE '00
2~ 309

2' 505
68
WEO.. SEP. 100 1969
100Z

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-54
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution. Public Healtb Service
U. S. Department of Heallb. Education, and Welfa..
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati. Obio 45226
DAY
DF
MONTH
c:r>
(.Q
MEAN
ND.
MAX.
A.M.
----------
7.8 8.9 9.10 10-11 11-12 12-1
12-1
1-2
2-3
3-4
5-6
4-5
6-7
h
2*
3
4
5
2.' 2.~ 2.; 2.0
2.. 1.' 1.e 1.9
1. 1. 2.( 2.6
2.. 2.i 3.2
2.~ 2.< 2." 2.9
2.! 1.1 2.~ 2.~ 2.e 2.5
1., 1. 1., 1.1 1.~ 1.8
3.e 3.. 2.
3. 3. 2.! 2./ 2.5
2. 3. 2., 2.1 2.e 2.5
2.
2., 2./
2.~ 1.~
2. .
2.( 2.~
11
12
13
14
15*
16*
17
18
19
20
21
22*
23*
24
25

26
27
28
29*
30*
* Indicates Saturday or Sunday
Local standard time used
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
'-2
2-3
2.! 1.~
1.e 1.'
2. 2.,
2.e 2. /
2.e 2.

1.< 2.e
2.e 2.e
1. 1.'
1.' 1. /
2.e 2.'
2. 2.e
2~C 2.e
2." 3.(
2.e 2.!
2.e 3.e

2.~ 2.1
4.' 4.1
1.' 1.'
1.' 1.1
2.! 2.1
2.e 2..
2..
I.' 1.
I.' 2.'
2.: 2.'
I.! 2.~
2.' 2.'
P.M.
3-4
4-5
5-6
6-7
7-8
8.9 9-'0 10.', 11.12
2.. 2.2 2. 2. 2.
1.E 1.9 2.~ 2. 2./
2.~ 2.1 2. 2. 2.
2.c 2.3 2. 2. 2.
2. 2.3 2.~ 2. 3. 3.
------
2.c 2.1 1.' 1./ I.' I.'
2., 2.3 2. 2. 2. 2..
2.e 1.9 1. 1. 2. 1.
1. 1.9 2. 2. 2. 2.
2.' 2.1 2~e 2. 2. 2.
2.~ 2.0
3.\ 2.7
1.1 1.6
2./ 2.0
2.~ 2.' 2. 2.'
2.' 2~' 2.1 3.

1. 2.( 2. 2..
2~e 2.
..,~~
OE~VE~.COLO.
TOTAL ~VDROCARBON
JU~E 1968
2.' 2., 2.3
3. 2.. 2.2
2. 2.' 2.4
2.1 3.1

1./ 1.4
2. 2.3
1. 2.2
2. 2.2
2.1 3.1
3.. 3.3
4. 3.5
2.! 1.9
1.1 1.9
3.~ 2.8 2.e 3.c 3.< 4. 2.~ 2.8

2.6 2.2 2.~ 2.' 2.~ 2.~ 2., 2.1
2.2 2.0 2." 2. 2. 2.~ 3~C 3.3

-------
2.~ 2.1 2.2 2. 2. 2.~ 2.c 2.4
2.1 2.1 2.1 2., 2.~ 2.~ 2.5


2. e 2.3 2.3 2. 1 2. ~ 1. < 1. 'I 1.9

2.2 2.2 2.1~~~li~~:-1~.2

3.: ~:~ ~:l 4.( ~:~ ~:~ 4.113.2
3. 3./ 3.~ 4.g 3.~
2. 2.6 2., 2.' 3.0 3.1 3.1! 3.0
I ,
I I
I I
2.~
241
4.61
I
2., 2.
24 24
3.C 3.
2.~ 2., 2.~ 2.2
24 24 24 24

4.~ 4.8 3.4 2.8
2.3 2.~
23 24
3.4 4.(
2.111 2.b 2.5
23 23 1 22
4.~ 4.1: 3.5
2.28
2.09
2.36
2.57
2.66
1.95
2.62
1.'19
1.80
2.47
2.46
2.75
2.34
2.02
3.12
2.64
2.34
2.34
2.39
2.37
2.31
2.88
3.26
3.18
3.40
2.46
3.40
DAILY
MEAN
NO.
OF
HRS
5'MIN,
MAX.
~-1'i-i.e-~ l.e"2.e"'2.-2 2.' --- 2-.- 2.. '2:-Z
7 1. 2. 2.~ 3.1 2.~ 3.1 3. Z.~ 2.~ l.' 2.. 2.0
8* 2. 2. 2. 2.e 2. 1.7 I.' 1.1 1.1 1.! 1.1 1.8
9* 2. 2. 1. I.' 2. 1.8 1./ 1. 1. 1./ 1.~ 1.5
10 2.5 2.~ 2.' 2. 2. 2.7 3.' 3.~ 2.~ 2.., 2. 2.0
I . --1-----
2.5 2./ 2.' 2.' 2." 2.8 3.~ 2'12'( 2.0
2.~ 2.' 2.' 2.' 2.1 2.. 3,< 2.' 2.' '. '.' 1.,
3.21 2. z. Z. 2./ ~.O 3.~ 3. ,
, 1.' JJ 1.1 2.0 Z. I. Z.I Z~ij 1. 1.' 1.9


I II IH-I- I~ 1-r 2. 2.".C3,1

I 2.~ 2.~ 2.~ 2.~ 2.6 3.~ 3.~ 3.~ I 2.2 2.~ 2.~ 2.~ 3.~
'~~~:I-~'~-.-~~~- 2.C2',I- 2.4 .3.~- 2. ; 2.E2'j ~'-~- 2.2 -~:~ 2.2 -~ 2.~

2.11 2.1 2. 2.1 2. Z.8. 2. 2. 7. 2.~ _I 2.' 2., 2.e 2.~
2.~ 2. 2. 2;' 2. 3.4 3.1, 2.~ 2~~ 2.31 2.12.0 2.1 2;' 2~2 2.1

1. 1. 2.1 3.J 3.!' l.E 2.512.~ 2.4 2.~ 2.~ 2.e
2.0 2.012. 12.12.2: 2.3 2.61. 2.E 2.5 2., 3.~ 2. 2.e

2.1. 2.4 -2;~--Z:4i 2.-5\ 2-.7-. 3.~ 3.6r~:~ ~3! 2.~ 2.6 2.E 2.8 3.! 3.2
I I I' 3.71 3.6 I 2.7; 2.5 2.5 2.~ 2.5 2., 3.2
2.3 2.6' ; 2.6 I ' 1 3.41 2.~ 4.1 3.( 2.E 2.~ 3.;
5.9 4.7: 3.2 5.11 5.4 3. ~ 4.!: 3.5 i 2.5 2. ~ 2. / 2. 2.'
I; I !' I

! I I ii I' I!
i 1 i
2.3i 2.4 2.~ 2.2 2.412.6 3.0.. 2.~ 2'1~l> 2.41 l.~ 2.3
18,212320 21j23 23119119 1!!~~19 21
3 . 21 5.9 4. 3 . 2 5 . 11 5. 4 3 . 9, 4. ~ 3. 3 . 2 . ~ 4. 1
, :
2 5.0
2 4.0
2 5.0
1 4.6
2. R.O
2
2
2
.-2
2
4.3
8.1
5.6
3.0
5.1
2 5.7
2 6.6
.21 6.3
2 4.6
1
5.2
2 5.7
2' 6.0
21 6.1
2; 4.6
2e 5.8
21 9.5
.-
2e 6.2
1 6.4
1~ 13.5
21 8.'3
52!
13.5
TABULATED
WE~.. SEPo 10. 1969
r
I

-------
Table 3-55
CONTINUOUS AIR MONITORING PROGRAM
, Air Quality Section. laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
-.J
o
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
DENVER,COLO.
TOTAL ~YDRDCARBON
JULY 1968
DAY         A.M              P.M.       DAILY NO. 5.MIN. 
OF          --    . .-  --,- ._- -              OF  
MONTH 12-1  '.2 2.3  3.4 4.5  5.6 6.7  7.8  8.9 q.IO  10--11 11.12 12-1 '-2 2.3 3.4 4-5 5-6 6.7 7.8 8.9 9.10 10-11 11-12 MEAN HRS MAX. 
1            3  2.c 2.c  ~:: 2.9 2.! 2.( 2. ~ 3. ~ 3. 2.9   3.  2.(  2.99 1 7.6 
2       3.,  3.6 3. c  3:c  3. 3..  2.9 3. 3. 3., 3. 3.        3.31 1 6.4 
3                                  
4                                  
5                                  
 - --  - - --  - --,-- --_. .--     -_.  --. . -           - I---    
6*                                  
7*                                  
8                                  
9                                .  
 I                                
10  i                                
             - I-- --- '---- - --               
11                                  
12                                  
13*                                  
14*                                  
15                                  
  I     --  .-- --_.- - --  _.... --  _._-                
16  I I                              
17             I                  
18             I                  
19  i i I     I  I  I I      1.J            
2011 ~ ~:~::l ~:r:j 2.~   I     1- 6.6 5.C 3.~ 2.e I.! 1.7 1. ( 2.(  2. ~ 2. 2.1 2.76 l' 7.9 
1-    I   - --- ---- --             
2111  I  4.8  3.'  4.8 3.~ 3.C 2.3 1. ~ 2.1 2.5 2. 3.! 3. I 2.' 2. ~ 3.8 2.80 11 7.6 
22    I  I   i                  
23  I    I                     
24    I  I                     
25  !   I  :                     :
       I  --.I                     
  I     .J --   .--  i- ---                
26  !      !     !   I                  :
27*                              
28*  :   I       !                    
29  I   I   I     i   I                  
    I    3.5 4.1: 2.~                   
30 l'12.C 1.' 2.C 1. cJ z."  2. ~ 2.3 2.' 2.~ 2.~ 3.1 Z. 2.0 2. 2. 2.   1.6 2.44 2 5.1 
  I     I               
31 t.~ 1." 1.5 1.~  I       2.(  2.( 2.1 2.( 2..  2. E Z.I 2.0 2.' 2., 2. 2.( 1.' 1.9 1.91 11 4.3 
MEAN 4~       2      3    6  5 6 6 5 4  4 3 4 4  101  
 4 4  4 3  3  3  4  4 6 6 4   
NO.      3.~        3. < .3.2 3.(  5.( 3.~ 3..  3., 2.9 2. 3.1 3.1 2.1 2. ~ 3.8 3.31  7.9 
MAX. 2.4 2.4 2.3  3.2 3.6 4.8 4.  6.6 3.1  
 I       
* Indicates Saturday or Sunday
Local standard time used
TABULATED
WED.. SEPt 10. 1969
I
>';,nnl

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health. Education. and Welfare
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY     
or     
MONTH 12.1 '.2 2.3 3.4 4.5
1  2.(  2.( 
2 1. 2. 
3.     
4.     
5 1. 1.' 1.~ 1. ~ . 
~-- i~i-2:--1.'-l:-' 2. '-'3.4 -
7 1.1 1.1 2.( 2.( 2. 2.5
8 2.' 2.1 2. 2.. 2. 3.0
9 I
10. z. q 1.1 1.1 1. 1. 1.9 2..
i

1.8 1.1 1.1 1. I.! 1.6 1.4 I.J 1.j
1.~ 2. 2. 2. 4., 3.7 4. 3.-
2.~ 2. 2.1 2.' 2. 3.4 4. 4.4 3. 3.
Z.1 2.~ 2.~ 3. 2. 3.4 4.~ 3.~ 3.e 2.E
Z.~ Z.' l.e 1. 1.P. 2.3 2.~

1.~ 2.2 l.e 1.@ 1. 2.2- 2.~

I
1
1.8 2.C 2.C 2.~ 3.~ 3.6
1.~ 1.:; -i~~~ 1. 2.1
1.S 1., 1., Z.. 3. 3.9
1.9 1.f 1.( 1.1 1. 11.7

-_..j -
I
2. AI 3. 1
2.0 2.8
1.~ 2.3
3.21 5.6
i
2.~ 2.8
MEAN
NO
MAX.
~
~
11.
12
13
14
15
16
17.
18*
19
20

21
2l
23
24*
25*
26
27
28
29
30
,
2.6' 2.1
3.9 2.~
1.7 1.8
2 . 3; 2. 2
i
3.9 4.1
2.~ 2.~
2.1 1.~
1.~ 1.~
2.3! 2.5
I
I
3 . I! 2. ~
31*
Z.2i 2.1 2.1
21.:01 Zl Zl
3.9,4.13.1
::: Indicates Saturday or Sunday
Local standard time used
2.1 2~~ 2.9
21 19119
3.1 4.0 5.6
Table 3-56
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
FLA~E IONIZATION ANALYSIS
A.M.
5.6
-~._--
7.8 8-9 9-10 10.11
4.5
6-7
11.12 12-1
'.2
2.3
3.4
4.; 2.1 2.' 2.~ 2.0
5." 5~( 3. J., 3.0
I.' 1.1 1.e 2.~ 2.~ 1.9
2./ 2.. 2. 2., 2.' 2.0
2.C 1.E 1.E 1. 1.
2.~ 3. 3. 4.~ 2.
2.
1.
2.. 2.~ 2.1 1.
2.0
----
-
--
3. 3. ;l.E 2'.~ 2.
3. 3.~ 3..
4.E
1.~ 2.
2. 2.1
1. 2.
2. 3..
2. 2.(
1.9
2.
2. 1.~
2. 1.~
2.. 2.1
2.( 2.
2. 2.1
2.' 2.3
2. 1.7
2.. 2.2
2. 2.1
2.2
2.5
2.0
2.
2.~
2.
- I- ---
1. I.! 1.9
3.' 3.4
2. 2..7
2.~ 2.5
1.9
I.' I.' 2.1
3;e 3.1 3.4
3. 4. 2.8
3.~ 3.e 2.4
2. Z.. 2.1
I.' 2.( 2.;
3.' 3. 3.
2. 2. 3.
2.~ 2.~ 2.
1.E 2.e 2.i/
-----
2. 2.3 2.e 1.e 1.6 1. 1.~

I

I 2.~ 1.~ 1.~ 1.~ 1.8 2.1 2.e Z.. 1.8
3.~ 3.' ~_.,..~.~ 2.. 1.8 -~~~: 2.1 2.~ 2.' 1.9
b ~:~ b ~:~ ~:~ ~:: f:~ ):i
2. I ! 2.~ 2.. 2.1 2.2 2.2
J :. --1-_1-
I I I
4.~ to.3I to.~ 3.~ 2. 2.2 2.~ 2.~ 2.' 3.e 2.~ 2.2
4.0 4.~ 3. 2.1! 2.' 2.1 2.. 2.i 2. 2. 2.' 2.1
3.~ 3.2! 3.~ 3.0, 2.E 2.8 2.1 3.C 2.E 3.~ 3.e 2.4
6.' 6.5: 4.2 3.8/3.1 2.4 2., 2.~ 2.~ 2. Z.e 2.2

3.9 2.6 2.. 2.2' 2.( 2.1 2.( 2.1 2.1 2.1 z.e 2.0

3.51 3.6 it.~ 2. 2.~ 2.2 2. 2.3 2.~ 2. Z.~ 2.1
2i-1 20 21 19 21 23 24 22 ZI 23 24 23
6.~ 6.5 5.0 to.2 3.5 3.4 3.lt 3.3 3.0; 3.9 4.1 3.4
i
2.] 2.] 2. Z.O
2.~ 2." l.1 1.9
2.. 2.'
P,M.
5.6
6.7
7.6
8.9 9-10 10-11 11-12
2~j 2.
1. 1.
2., 2. 1.! 1.9
2., 1~' 2., 2.0
1.8
2.1
1.1 1.1 1. 1.9
2.1 2. 1.E 2.1
1.
2.
1.
2.
2., 1.~ 1.1
2. 2.' 2.~
1. 1..
2.. 2.< 2.(
1.e 1.1 1.1
1.1 2.. 1.9
2. 2.! 2.6

1.1 1.' 1.6
1. 1.1 1.7
2.; 2.; 2.~ 2.,
3. 3.~ 3., 3..
3. 3. 3.( 4.
2." 2.it 1.( 2.
2.~ 2.5 3. 3.C
1., 1.8
3.- 3.3

2.1 2.4

2.. 1.9

2.. 2.0
l.e 2.0 2.' 3.1 2.\ 2.2
2.C 2. 2.~ 3.e 3.E 2.8

2.: 2.~ ~. 2.1 2.C 3.0
l.e 1. 1.1 1.8
2.



2..' '- . ~ 1.9 2.3 2.6 3. 1
2.1 2.1 2.iJ 2.~ 2.3 1.9
2.E 2~~ 2.~ 2.~ 2.~ 2.E!
3.1 2~6 2. 2.lt 2.j 4.5

2.: 3.e 4.~ 3.1 2.~ 2.8

2.3 2.4 2." 2." 2.3 2.3
24 23 21 21 22! 22
3. 'I 3.' 4.~ to.e 3.8 4.5
I
TABULATED
.oJ U ...11
DENVE~.COLO.
TOTAL ~YOROCARBON
AUG. 1968
DAILY NO. 5.MIN,
MEAN or MAX.
HRS.
2.28 1 5.%
2.57 2 6.
1.76 1 2.4
2.3to 2 5.8
2.27 2 5.3
2.39 2 4.5
2.34 14 7.3
2.30 '1. 4.2
1.93 2i 4.7
1.87 24 3.0
3.22 2. 6.8
3.10 .2.11.8
2.73 2. 9.0
2.21 2C 3.8
1.99 1~ 3.9
2.23 I! 5.4
2.59 2~ 5.9
2.18 24 5.9
2.41 2 5.9
1.98 1~ 3.7
2.7to 2~ 5.1
2.53 2~ 6.4
2.61 2lt 5.7
3.19 2~ 8.0
2.68 2~ 7.2
2.46  
 51 
3.22  11.8
WEO.. SEPt 10. 1969
r

-------
Table 3-57
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory of Engineering and Physical Sciences
Division 01 Ail Pollution, Public Health Servic~
U. S. Oep"tment 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
~
f\:)
Robert A. Taft Samtary Engineering Center
Cincinnati, Ohio 45116
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
111
2
3
to
5
MEAN
NO,
2.C 2.C 2. 2.~ 2.~ 2.2
29 26 28 21 21 28

2.9 3.1 3.~ 4.0 3.~ 3.2
2.~ 2.e l. 2.~ 2.~ 2.5
29 28 28 28 28 26
5. 7;.' 5.e 5.0 5.9 4.0
MAX
DE".IVER,COLO.
TOTAL ~YDROCARBON
SEPT. 1968
NO,
OF
HRS
5.MIN,
MAX.
DAY A.M P.M.
.- - " 1 -~- DAILY
Mc?:TH ~.;----;~2 2.;- -;:;' 4.5 .~~ 6.7 7-8 8-9 I q.1Q 1-1~~1.1111-;2- -~;-'1-- 1-2 2.3 3.4 4.5 5.6 6.7 7.8 8.9 9.10 10.11 11.12 MEAN

2. ( 2. / 2 . ~ 2.' 2. l 2. 1 2.. 2.le 2 . ~ 2 . ~ 1. ;,1 1.1 1 . ~ 1. i 1. , 1 . 1 . / 2.0 2. 2. ~ 2.: 2. 2. e 2.3 2.06
1./ 1. 2... 1;; 1. 1.7 1.e 1. 1.c 1.J 1. 1.6 1. 2. 1.' 1. 1./ 1.7 1.( 2.~ 2.~ 1.~ 1.E 1.6 1.79
1./ 1. 1.~ 1.f 1. 2.2 3. 3.< 2.E 2.fI 3.4 2.( 3.' 3. 4.C 3. 3.0 2.' 2. 2.( 2.~ 2.C 2.1 2.55
2.( 2. 1. 1.1 2. 2.A 4~C 3.E 3,] 3.5 3., 2.7 2.E 2.2 2. 2.66
1. 1.e 1. 2.1 2. 2.2 2.C 1.( 2.C 2.< 2. ~ 2.( 2. 2. 2. 2.< ?.05


~-- i 1~~ 1.J, 1.e 1.P 1.6 1.E, 1.~ 2. I 1.~ 1.~ 1.6 :~--1~'~. 1.~ 1.' 1.4 1.< 1. 1. 1.~ 1.E 1.6 1.68
811 I 2.~ 2.q 1.". 1.11 1.7 1.8 1.E 1.~ 1.~ 1., 1.2 1. 1. 1. 1.~ 1. 1.4 2. 2. 1.( 1. 1.~ 3.5 1.66
9 3.t 2.~ 1.~ 1. I ~.~ 4.6 I 2.6 2. 2. 2~~ 3.C Z. 2.6 3. 3. 2.' 4./ 3./ 2.98
10 : I 1 I 3.' 3.~ 2.2 2.3 2. 2. 2.C 2.~ 2. 2.7 2.f 2./ 2.( 2. 1.~ 1.8 2.36

11 l.t 1.~ 1.~ 2. 3.~ 3.1 4.. r 3~-2.j-2jl:9 ---2.~-1.E 2.~ 2.2 -~ 2.5 2.E 2. 2. 2. 2.( 2.1 2.42
12 1.8 1. 1.1i~ 1.9 2.4 2.A 5.2: 5.8 3."1 2.~ 2.2 1.9 2. 2. 1.e 1.~ 2.~ 2.0 2~C 2.E 3. 2.~ 5.~ 4.0 2.76
13 2.~ 1. 1. 1.a 1.~ 2.2 3.a 4.~ 3.~ 3.lI 2.~ 2.0 2.C Z.< 2.~ Z.~ 2.e 2.4 2.~ 2. 2. 2. 3.( 3.1 2.53
1411 2.8 2. 1. 1.~ 1.~ 1.6 2.q 2. 2.5. 2.11 1.8 1.8 1.E I. 1.E 1. 1.( Z.2 2.l 2.4 2. 2.~ 1. 1.9 2 02
1511 2.~~~..~'j_2~.1.,jl.9 Z.12.! ~'j ~.i-~~"~~~TI. 1.4 1." 1.~ 1.7 1.~ 1~5 1.' 1.1, 1.' 1.4 1:79

16 1.4 1011 109, 1.6 Z.l, 1.9 1.9 2.~ 2.0 I' 2.~ 2.1 2. 2. 20f 2.~ 2.l 2.4 1.~ 1. 10~ 2.~ 2. 1.9 2.0Z
11 106 1.~ 1.9 1.~ 1.8, 1.9 20~ 2.~ 2.3 2.1: 2.2 1.8 10~ 1. 2.0 2.f 1.e 1.6 1. 1.~ Z.~ 3.34.' 3.8 2.23
18 3.5 2.~ 3.q Z.~ 2.1: 2.2 3.3: 4.~ "'~ 2.tc; 2.~ 2.1 2. 1., 2.~ 2. 2.61 2.0 2. 3. 3..11 3.1, 3.e 2.9 2.86
19 2.1+ Z.~ 2.11 11.9 I I i I ~ 1.~ 1.9 2.0 2.~ 2.~ 2.7 2.~ 2.4 2.~ 2. 2.~ 2.6 2.25
20 Z.3: 1.811~511.i I., 207 6'j 40~ 3. I 301: 2.1 207 201- \.-2j ,~.c_~~,~~ 20C 2.~ 3.~1 3.0 20~ 1.6 2.66

2111 2.3 1.~ 2.~ 2.~ 2.4; 4.5 3.~ 2.1 2.~ 2.b 2.1 1.9 1.8 1.~ 1.~ 1. 1.~ 1.6 1.~ 1.] 1.~ 1.~ 1.~ 1.6 2.13
2211 2.0 30~ 2.~ l.~ 1.~ 2.0 2.3 2.2 Z.~ 1.~ 1. 1.5 10~ 1. 1. 1." 1.~ 1.6 1. 1"1 1.~ 1. 1. 1.4 1.82
23 t.3 1.8 1.5; 1.~ 2.4 2.9 4.Z 4.U 3.~ 12.5 2.4 2.3 2. 2.~ 2.6 Z.5 2.4 2. 7.2: 5.~ 4. 4.~ 3.4 3.10
24 2.5 2. 1: 1"~ 1. ~ 1.1'1 3. 1 5.5 4. b 2. ~ 2. ~ 2. ~ 2.0 1 . 8 1. I 1 ~ B 2. ~ 208 2.4 2. ~ 3. ~ 2. ~ 2. 2 . ~ 3.2 2.57
25 2.3; 2.i=:':I,~11 2.1; 2.4 4.~ 4.~ 3.J 2.~ 2.=.2",0- 1.~ 2.0 2.1 2." 2.A 3.2 3.1 4. 50 'I 5.r 3. 3.9 2.98

26 2.7. 2.~ 2.~ 2.9 2. (2.7 4.~ 5.~, 3.~ 3.~ 2.~ 2.5 2. Z.< 2.< 3.~ 2.8 2.7 2.1, Z.~ 2.~ 3. 2. I 3.4 2.82
21 3. q 2.~ z. 6i 2. ='i 2.4 3.0 4. Tj ! I 3.3 2.6 2.0 2. (j 2.l 2.4 3. 1 2. B 3.0 4. I, 5... 2. ~ 2. ~ 2. "i 3.9 3.01
2h 4.33.12.1,1.92.12.6 2.8 3.~. 3.to! 2.1! 2.1 1.~ 2.0 1.9 1.9 1.9~ 1.e 1.~ 2.0 2.34
2911 1.8 1. 1.~ 1. 1.8 1008 1.~ 1.9 1.~ 2.~ 2. 2.3 2.. 2.~ 2. 2.1 2.0; 2.5 3.0 3.5 3. 4. 3.,. 2.6 2.33
30 2.5: 2.4 2.~ 3.0 2.~ 3.2 4.j5.U 3.~ 3.9 2.~ z.~ 2.~ 2.< 3.1, 3.Z 2.1 5. 4.9 5. 3. 2.6 2.7 3.31

I I Ii' i

2. j z. ~ 2 .~ ~o 1.9 2.0 2.4 3. ioi 3.4 2.9 '2,. J 2. ~ 2.0
26'1' 28 28 26 26 25 25 I 24 26 25 25 27
4.3 3.4 3. 3.0 3.0 4.5 6. ~ 6. ~ 4.6 -3. 'i 3.0 3.4
I. I
2( 3.2
2( 2.5
2 6.2
1 5.1
1 3.2
2 3.1
2 5.2
-le 7.7
H 3.9
2 6.6
2~ 8.5
. 2~ 5.0
2~ 3.8
2~ 4.0
2 3.2
2~ 5.1
2~ 6.1
H 4.2
2 18.5
2~ 7.0
2~ 4.3
2310.2
2~ 7.6
21, 7.5
Zio 6.3
22 6.A
1~ 5.3
2~ 4.9
23 7.7
2.40
64
3.31
18.5
* Indicates Saturday or Sunday
i lOCal standard time used
TABULATED
WED.. SEp. 10. 1969
I
::; nr

-------
CONTINUOUS AIR MONITORING PROGRA"
Air Quality Section, laboratory of Engineering and Physical Sciences
Division of Air Pollution, Public Health Se"ice
U. S, Department 01 Health, Education, and Wel!"e
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio m26
DAY
O'
MONTH
12-1
1.2
2.3
3.4
4.5
A.M.
5.6
6-7
7.8
1
2
3
4
511
2.< 2.4 1.~ 2.
1.~ 2.8

-------
CONTINUOUS AIR MONITORING PROGRAM
Table 3-59
Ai, Quality Section, laboratory 01 Engmeering and Physical Sciences
Division 01 Ail Pollution. Public Health Sefvice
U. S. Department of Health. Educallon. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
~ Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
FLAME IONIZATION ANALYSIS
DE'NVER.COLO.
TOTAL ~YDROCARBON
NOV. 1968
DAY  AM    
OF  - - - ---- -  '
MONTH 12.) 1-2 5-6 6-7 7-8 8-9
1 2. 2.  4.   
2* 2. 2.  2.   
3* Z. 2.  3.   
4 3. 3.  3.   
5 4. 2.  3.   
---      
6 1. 1.     
7 2.~ 2.     
8 3.'i1 2.     
911 2.1: 2.     
1 o Ii!  2.1 2.     
     P.M.      DAILY NO- 5'MIN,
      6-7 7-8 8-9 9-10 10-111~ MEAN OF MAX.
12-1 1-2 2-3 3-4 4-5 5-6 HRS.
2.     3.6     2.7 3.11 2 6.2
2.     3.3     3.0 2.60 2 5.3
2.     3.6     3.3 3.20 2 5.5
2.     3.4     3.5 3.50 2 12.2
2.     3.0     1.8 2.51 2 6.1
2.     4.2     2.2 2.48 2 6.2
3.     5.7     4.4 3.53 2 7.1
     3.7     2.6 3.07 1 6.7
     2.6     2.1 2.4-4 2 6.6
     2.2     1.8 1.92 2 3.3
            2 15.3
            2 7.5
            2 6.6
            2 6.5
            2 8.0
21 2.~ 3.6 
22 2.~ 
23ft 1. ~ 
2411 2.~ 
25 4 8 
. J 
26 3.4 2.4
27 2. Ii 4.3
28 1.~ 1.9
29 2.~ 3.0
30* 3., 3.5
3.21
3.33
2.09
3.11
4.20
MAX.
2.8
30
5.6
3.06
MEAN
NO.
6.04
18.4
o Indicates Saturday 01 Sunday
Local standa rd time used
TA8ULATED
WED.. SEPt 10. 1969
I
.:: n n

-------
Table 3-60
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineeling Center
Cincinnati, Ohio 4~226
CONCENTRATION IN PPM
FLAME IONIZATION ANALVSIS
DAV
DF
MONTH'
A.M.
P.M.
-
-
12-1
'-2
2-3
3-4
5.6
4-5
6-7
7.8
8-9
9.10 10.11
11-12 12-1
'-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10 10-11 11-12
1*
2
3
4
5
---
-- .<
- .---
---- - -----
6
7*
8*
9
10
8.e 7.
4.,
3.
4.
4.
3.
7.e 8.3
I
I
4.
3.
3.
I
, -- c-----

U 1.~ 1., 1.' 1.' 1.' 1.5 1.! 2.J 2. 1.~ 1.e f:~ f:: ~:: ~:~ ~:~ ~:~ ~:f f:: f:~ f:' t:/ t:: t:~

13 1.~ 1.~ 1.' 1.~ 1.~ 1.6 2.e 3.~ 3.! 2.1 2. 2.< 2.< 2.~ 3.~ 3.6 2.~ 3.~ 3. 2. 3./ 5.7
14* 5." ~.' 5.4 5. f 6. e 4.5 3.1 4.. 4. e 3. / ".' 5.7 5. 4. 3 ~, 3. ~ 3.' 4. '5 5.' 5., 6. 9. / 9. 6.3
15* 5.9 5.~ 6'45. 5.\ ".8 _~l3.11-~_e_2.!~ 2.2 2.e 1./ 1.' 1.~ 1.' 1.6 2.43.1 2. 3.14.< 4.3

16 3.5 2.~ 3'~ 3.' 2.e J.6 6.~ 8. ~13.d 5. 3.6 2./ 3.e 3.~ 4.' b.e 6.5 4.e 5. 6. 7. 6.( 6.1
17 ,.~ 7~' 7. 7~~ 7.- 5.3 3.~ 7.6; 6.~ 5.11 2~' 2.5 2.1 2~i 2.' 2.' 3., 3.8 2.~ l~C 1./ 1. 1. 1.6
18 1.5 1.~ 1. 1.~ 1. 1.8 2.61 3.~ 4.~ 3.11 2./ 2.9 2.1 2.~ 2.' 2.e 2.~ 3.0 2.' 3. 3./ 3.< 2.~ 2.0
19 2.~ 1.~ \.~ 2.~ 2., 2.2 2.~ 3.~ 2.~ 2'~. 2'J 2.1 2'12~' 3.' 4.] 5.~ 3.9 3~' 3. 2.~ Z.I 3.1 3.2

ii: -"~1.rl'-'~ '"1'" "r' I i ..o_.~-~.~:~~~~ '.' -. -.' -9 -.. -. -.'


24 4.4 2.~ 4.8 '5.1 4.~ 5.0 7.__~11.~. 9.~ 9. f. 9. 5.8 4. 5... 5.E 7. b. 5.9 5.< 7.~ 8.q 7.C1 5.~ 5.5
25 4.~ 4'~ '5.~ 3.~ 2.~ 2.1 2._] 3.~ 3.~ 3.2: 3'~ 3.1 ~~ 2.'~ 2.e 3. ~ 3. _3.:!~.~.~!~ 1.8

26 1.8:~-1;~~7:4.2! 4.4 7.8, 8.1j 7.~ 4.~ 3:12.9 2. 2. I 3.( 4. 5.! 4.6 3.< 2'~ 2.R 2. 2.~ 2.3
27 2.12. I 2.31 2'~i 1.812.0 3.0, 4.0 I ,2. 2.2 2. 2.~ 2~' 3. 3.1 3~( 2. 2.3 Z. 2.~ 2.7
28* 2.2 2.21 2.3 2. ~ 2.3' 2. '5 2.81 2.8 3. 4! 3.31 2. 3.4 2. ~ 2. Q 2. < 2.1 1. ~ 1.8 2. i 2.1 1. ~ 2.' 3. ~ 5.1
29* 4.4 3.51 2.5: 2.2 2.1: 2.3 2. ~ 2.2 2.11 1.9 2. ( 1.8 1. e 1.8 1. ( 2. ( 2.1 2.7 2. i 2. 2'?r 2.1 2.011.9
30 2 . 1 1. 8 1. 7 1. 7 1. 81 1. 9 2 . 21' 3. 7.. 3. 5 2. 6; 2. 2 . 5 2 . 2 . ~ . 2 . ( 3 . 2 . 3 1 . ~ 1. . ell 1 . 2 . 1 5 . 3
; i i I I' .. 1 2 1 I
31 Iii i

r:.; MEAN '.2: 3.0 3.2, 3. 1 3.01 3.0 3.6: 4. ~I ! 3.0
ND. 16 . 16 16 I 16 16 li 1 6 16 i 16 14 12 i 15 1 7
MAX 5.91 7.4 7.41 7.9 7. ZI '5.3 7.8:11.613.0 9"i 9.6 5.8

* Indicates Saturday or Sunday
local standard time used
2.E 2. 2.E 3.1 3.~ 3.8
18 18 18 17 18 18
5.3 5.2 5.6 7.3 7.C 8.3
3.2 3.4 3'd 3.'
18 18 18 18
8.C 7.3 8'1 9.~
3.4 3.5
18 18
9.) 6.3
I
TABULATED
',. '.. '.
[)E~VER.COLO.
TOTAL ~VDROCARBON
DEC. 1968
DAIl.Y
MEAN
NO.
DF
HRS.
S-MIN,
MAX.
3.1
5.08
-1 11.3
2.50 1 5.2
1.1'0 2C 3.8
2."0 . 2, 6.3
5.16 2' 11.1
3.42 2' 8.5
5.11 Z 16.6
4.04 2.12.0
2.56 2. 5.8
2.89 2. 6.7
2.76 2 6.7
6.39 2' 18.4
3.15 2' 7.3
3.65 2' 12.9
2.57 21 6.3
2.59 2' 6.1
2.23 21 5.4
2.45 21 8.0
3.37
6.39
401
18.4
WED.. SEP. 10, 1969
r
I

-------
CONTINUOUS AIR MONITORING PROGRAM
Ail Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S. Department 01 Health, Education. and WElfare
~
0")
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45116
DAY
OF
MONTH
-~_._---
MEAN
NO
MAX.
_..,_..-
12.1
1
2
3
4
5
: 8c : g~

.OC .OC
6*
7it
8
9
10
o a ~ . O.
.oq .OC
.o~ .0.
11
12
13*
14*
15
16
17
18
19
20*

21*
22
23
24
25
'----
: .02
oo~ .02
! I
I
26
27*
28*
29
30

31
* Indicates Saturday or Sunday
Local standard time used
-.- - ----
--- .
-
1-2
2-3
3-4
4-5
.o~ .q~ .00
.0. .01. .02
.oc .oc .00
--
---
.o~ .o~ .03
.00 .oc 000
.0 .oc .00
Table 3-61
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
A.M
6-7 7-8 8.9 I CI.'10 11 ~-11 1 1.12

:8C :g~ :g~] :g~.o .00

.0 .O~.o .03

.0J.O .04

.0:1 .0. .O~ .0J.O .00
.nc.oc .oq .00 .01.02
I i .o~.o .00

---11 J.- 1- -
I I I I
I I I I
I I _,I -1-11 .03

.O~ .01: .011 oOli.O .04

.O~ Iii
I I I I I
! t i
I ; I
.02, .01' .021
.01: 002 .05
.011 .01:- '~-21

.01 .021
.01; .O~ .011
.t'~ .02 .02
.o~ .o~ .o~
.02; .03 .o~
I i
.O~
I
.o~
16 i 13 12 15 14 15
.02i'0 .O~ .O~ .O~ .05
I
5-6
.oi .O~ .05
.02: .0. .02
.01 .0. .04
I __n m-
I
.oi .o~ .03
.02 .0:1
.02.0 .02
.04.0 .03

.03
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
DF~VER.COLO.
TOTAL O)(IDA~T
JA~. 1968
     P.M.       DAIl.Y NO, S'MIN,
-- ----  3-4 I 4-5         OF 
12-1 1-2 2-3 5-6 6-7 7-8 8-9 9.10 10.11 11-12 MEAN HRS. MAX.
 .OC .0C .~~ . ~~ .01 . ~C .~C . ~~ . ~C . ~C .00 .009 11 .05
.OC .0 .0 .00 .0 .0 .0 .0 .0 .00 .005 2 .03
.0 . o~ .04 .0, .0 .03 .0    .OC .00 .015 11 .08
-
.04 .01 .01 .0 .0, .07. .0, .O~ .0 .0:1 .O~ .02 .026 1~ .05
--- ------- ---------------
.0 .0 .OC .00 .OC .OC .OC .OC .OC .00 .009 2 .03
.0' .01 .01 .01 .0. .02 .0 .0, .0 .O~ .0 .02 .017 2 008
-"-t--~-~-~ ,0 .0 .0 .0. .0 .01 .011 _1 ,0.
..
.0 .O~ .01 .0, .0, .03 .0, .01 .01 .0 .0 .07 .032 1 .12
       ----1-    
.OE . O~   . o~ .04 .O! .0 .09 .O~ .0 .02 .0'3 2( .12
 .0j.0 .0, .0, .03 .0 .0 .01 .0. .0. .02 .020 1 .04
-.-- ------------------------------
.O~ .O~ .O~ .01 .0,
.0
.O~ .O~ .02 .0, .0,
.0' .0 .0, .O~.O .0 .01 .022
.02 .0, .0 .0 .01 .01 .01 .015
.02 .0, .0, .0 .0 .0 .01 .016
-----;---
.02 .0 .0 .0 .0 .0 .01 .012
.01 .0 .0 .0 .0 .0. .02 .014
.02 .02 .0. .0 .0. .0. .02 .016
.01 .0 .0 .0 .0 .0, .01 .019
.01 .02.0 .0 .0 .0 .01 .021

.02 .02 .0..0 .0 .0, .01 .019
I
I
I

I
I
i
_Ij'_- -1-
.0 .01' .01
.0' .01' .01

i I
; -.. _I- I

.01 .01 .01 .0J .01
.01' .01 I .01 .011 .01
.01; 0011--l-~1 .OJ .01

. 0 1i . 0 1 . 0 1 . () I: . 0 1
.01' .01 .OC .011 .01
.02 .011 .02 .02 .00
.02 .OZ I
.02 .021' .O~ .01
i I
.02i .03 .0. .O~ .01

.01 .01 I .011 .01
16 17 15 16 i 16
.02 .03 .o~ .03j .03
.01 .02
.0 .0
.0
.0
.03 .0
. O~ .0
.0
.0
.0 .0
. O~ .03
.0
.O~ .03 .0. .0
.0 .02
13 13 11 15 19 19
.OE .OE .O~ .010 .O~ .04
.0. .0. .0 .0 .0 .01
19 18 18 18 19 19
.O~.O .0., .O~ .03 .07
.033
WED.. SEP. 10. 1969
r
.017
TABULATED
2~ .11
I" .07
23 .05

H .03
2 .04
H .04
2C .05
2. .07
1 ~ .03
3M
.12
;:;;n"

-------
,.JVJ
CONTINUOUS AIR MONITORING PROGRAM
Table 3-62
Air Qualily Section, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U, 5, Department of Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineeling Cente,
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYStS
OE~VE~,COLO.
TOTAL OXrOANT
FEB. 1968
~
~
DAY          A.M.              P.M.       DAILY NO. S-MIN.
OF                               11-12 MEAN OF MAX,
MONTH 12-1    '.2 2.3 3.4 4.5  5-6 6-7 7-8  8.9 9.10  10-11 11-12 12-1 1.2 2.3 3-4 4-5 5-6 6.7 7-8 8.9 9-10 10.11 HRS.
~ .Q,    .04  .04 .Q4  '84 '~I '~i  .0. .0  '~i .04 :8« .0 .0 .0. .Qi .02 .Qi .0 .0 .0 .0 .00 .02~ i '84
.0    .0  .0 .0  . 1 .0 .0     .0 .01 .0   .0 .01 .0 .0 .0 .0 .0 .01 .01 . 3
3* .0    .0  .0 .0  .00. .0 .0  .0 .0  .0 .01 .0 .0.   .0 .02 .0 .0 .0 .OC .0. .02 ,009 2 .04
4* .0    .0  .0 .0  .01 .0 .0  .0 .0  .0 .04 .0, .0 .O~ .O~ .0 .02 .0 .0 .0. .0 .0 .01 .019 2 .04
5 .0'    .0'  .0 .0  .00 .0           .0' .0 .01 .0 .0 .0. .0. .0 .02 .013 I' .04
t---         1---. 1--. --.- - -  --.                
6 .02    '~i  .Oe .0,  .01 .0.       .03 .0 .0 .0 .0 .0 .02 .0 .0 .0 .0 .0 .01 .019 1 c .04
7 .O~  .O  .01 .01  .01 .Oi .O~  .0 .04  .04 .06 .0 .O~ .O~ .'04 .0 .01 .0 .0. .0 .O~ .0 .02 .029 2 .08
8 .0    .01  .0' .01  .01 .0 .0.  .0. .0.  .0 .04     .0 .02 .0 .0 .0 .0. .0 .02 .015 lc .05
9  !                               . 
10*  !                                
11*     .0      .0' .01       .O~ . O~ .O~ .0'   .Oi .0, .0. .0. . O~ .03 .031 1 .06
12                                 
13                                  
14                                  
15                                  
   I          -                     
16   I          .01  .01         .0'         2C 
17*   i .0.  .0. .0.  .02 .0  .0.  .0 .01 .0 .0.   .03 .0 .01 .0 . O. .0 .01 .013 .05
IS. .01! .0'  .0 .0  .02 .0. .0:/  .Oil .0.. ,04 .07 .0' .0'   .OC .03 .0 .0: .0 . O.   .027 1~ .08
19   I          I I  I         .01        
20 .011 .01  .01 ~'r' 0 ' .,~ --" .04 .04 .0   .0, .01 .0 .0 .0 .0 .01 .017 l' .05
 .011 .01   ---:0', --. o~. ~-~~ -- - f----.             
21  .01 .01 .01 .0 .0, .03 .04    .0' .02 .0. .0 .0, .0. .0. .02 .020 l( .09
22 .O~ .0.  .0. .0 .02 .0 .0 .0 .0 .04 .03 .0 .0   .0  .01 .0 .0    .023 1 .05
23    ;          I                    
24*    '          I                    
25*   i    --+--                       
  i    - .-- -- .---1-                   
26    '      I i                    
   '                         
27           ! I                   
28    :  I   I                       
29    I  '   I                       
    I                         
    i  I   I     i                    
     I                          
    I     I     I                    
    I                            
  i     1                         
MEAN    I            10 ,I 11               27C 
NO. 12 Zl14 113 13  13 14 I 11  q 12 12 11 5 6 13 12 14 14 14 13 12 12  
MAX. .02 .04  .04 .04 .04 .021 .0'" .04 .03 . O~ .07 .01 .06 .06 .O~ .O~ .03 .0 .03 .0' .O~ . O~ .03 .031  .09
       i                 
* 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
'-1
cr:-
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
DAY
DF
MONTH
1-- ----
12.' 1-2 2-3
3-4
4-5
~*
3*
4
5
..------ .'-- -,. ..-
6      
7 I    
8 !    
9*    
10*      I
 i   
11      .~ .0'
12 .O~ .02  
13 .02: .02   .0 .02
14 .02 .0.  .O~ .0 .0'5
15 .02.01  .01 .0 .01
 .02 .02 --  
16~  1.0. .0 .01
1711 .01: .O~  .03 .O~ .O~
18 .03 .O~  .O~ .O~ .02
19 .0 11 . 0  1.0 .011 .01
20  ..~--_._. ---'- - I
--_..
21      i
22     
23*      I
24* ,.01  I .01 .011 .01
25 ;   j
 i  
26 .01, .02  ---1~ I -
27  .02i .03
28 !   I '
29 . 0 Ii . 0 1  I .0. .021 .02
3011 .021 .02  .04 .021 .02
 I    
31* .0'51 .O~  .O~ .06 -.06
MEAN ! ~~ ..   
ND.   
MAX. .0 .0'5   
11 13 13
.06 .06 .06
* Indicates Saturday or Sunday
Local standard time used
Table 3-63
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
A.M.
-.-.-
- ... ~ -..
.- --- - - - ---
5-6
6-7
7-8
8-9
Q.l0 10-11 11.12
1-2
2-3
3-4
4-5
12.1
--
i
I
I ! i
- -+ L-r-- --

.or .oJ .021 .o~ .05 .O! .05
:g~ .o~ - j .o~ .O! ~05 .O~ :g~ .O~ .o~ :g: :g~
~t.o C I-~~i~ .04 .03 .0; .03 .o~ .0, .02
0011 .o~ .03 .o~ '0; .04 .O~ .0; .01 .03 .0/ .03
.o~ .o~ -.o~ .o~.o .04 .O~ 00~ .O~ OO~ .0/ .03
.o~ .o~ .o~ .041 .o~ .O~ .O~ .05 .0' .04
.o~ I I I .O~ .O~ .O~ .O~ .0/ .04
! ! i ---+----

: : I i

.01: ool! 'Oi .O~ .O~ .Ob .O~ .Of
---l :. I - ! --- ---
.021 .O}, .O~ .o~.o .07 .0 .0 .0 .O~ .0'5 -.04
, 1
.03 .O~' .04 .OS
.02 .03, .05 .091
I
005 .05 .O~ .'05' -.O~ .06 .O~ .O~ .O~ .O~ .05 .Ob
P.M.
5-6
6-7
7-8
8-9
-
~~----------I--
. O~ 006
.07
. O~ .06
.O~ .08
.O~ .O~ .O~ .O~ .O~ .04
.0 .O~ .oe .0 .O~ .05
.0 .O~ .Of .O~ .o~ .06
13 11 10 11 10 10
.o~ .0'5 .OJ; .09 .09 .08
12 13 11 11
.01 .O~ .OE .0
14 14
. O~ .06
. o~ .0
.0 .0,
.0' .0/
.0,- .0
.0, .0,
.0.' . 0
.0' .0
.0' .0
.01;
.04 .0
.0, .0.
.0 .0,
.0 .0
.0, .0,
. O~ .0
.021 .0
.0' .0'
--
9.10 10-11 11-12
.0:/ .02
.0 .02
.04 .01
.0 .01
.0 .02
.0 .04
.0 .01
.0' .04
----
.O~ .O~ .O~ .O~ .oj .03

.0 .O~ .0J~ .O~.O .02
.03 .Oi! .0 .02 .O~ .01
.0~.04.0 .03 .O~ .05

.O~ ~O .0 .03 .01 .03
14 13 13 13 13 13
.O~ ..O~ .O~ .O~ .O~ .05
TABULATED
DAILY
MEAN
.026
.026
.036
.023
.023
.031
.033
.031
.038
.042
.043
.039
.046
.048
.048
DENVER.COLO.
TOTAL OXIDAN.T
"'ARC:~ 1968
NO.
OF
HRS.
5.f..1IN.
MAX.
-
1 .06
. l' .01
2 .05
2 .05
~~ .05
2, .05
21 .06
Ie .05
U .06
2
.09
1 .09
2 .10
2; .12
2
.01
28
.12
WEO.. sEp. 10. 1969
II
o::nl

-------
'.,J ."
CONTINUOUS AIR MONITORING PROGRAM
Table 3-64
Air Quality Section, laboratory of Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U, S. Department of Health, Education. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. raft Sanitary Engineering Center
Cincinnati, Dhio 45226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
DENVER.COlO.
TOTAL OXIDANT
APRil 1968
...)
~,
DAV       A.M.           P.M.       DAILY NO. S'MIN.
OF                          MEAN OF MAX.
MONTH 12-1  '.2 2.3 3.4 4.5 5.6 6-7 7.8 8.9 9-10 10-11 11-12 12-1 '.2 2-3 3-4 4.5 5-6 6-7 7.8 8.9 9.10 10-11 11.12 HR$.
1 .0.  .~1  .0. .qi .02 .~; .0 .qi .~! . \: .15 .0« .0 .01 .0 .0 .06 .~: .0 . ~~ .~, .0 .02 .051 2 .20
2 .0.  .0.  .0. .0 .03 .0. .0 .0 .0 .0 .06 .01 .0/   .0 .04 .0 .0 .0 .0 . OJ .05 .043 2 .12
3 .0  .0  .0 .0 .03 .0 .0 .0 .0 .0 .05 .0 .0 .0 .0 .0 .04 .0 .0 . O~ .O~ .0 .02 .038 2 .06
4                            
5         .0' .0 .1e .1 ~ .13 .1 .0 .0/ .0/ .0' .04 .0 .0. . O. .0. .0. .02 ,055 1 .17
- -.02 --    .-.  f- ..  .- -.                
6*  .0  .0 .0 .03 .~~ .O~ .O~ .0 .01 .06 .01 .0 .0 ,0/ .0/ .05 .0' .OJ .~: .0' .0' .04 .046 2 .09
7* 'Oi'O  .0/ .0 .06 .0 .O~ .O~ .0 .0 .07 .0 .0 .0/ .0 .0 .06 .6' .0' .0 .O~ .O~ .05 .056 2 .07
8 .0.0  .0 .O( .01 .0 .~~ .0' .0' .01 .05 .0. .OJ .01 .0' .0 .04 .~i .0. .0. .0 .0' .02 .030 2 .07
9 .0 .0.  .0 .OJ .02 .0 .0 .O~ .01 .0 .08     .01 .06 .0 .0 .0 .0. .0: .03 .039 '1 i .10
10 . O~ .0  .0 .0 .02 .0. .O~ .04 .01 .0 .07 .0 .0 .0« .l( .0' .04 .0 .0. .0, .0, .OC .01 .041 2 .11
11 .~~.O  .0' .0' .03 .OJ . ~~  .01 .~; .11 .1( .1( .1( .0« .~~ .06 .q: .0. .~~ .~J .0' .02 .049 2' .13
12 .0 .0,  .0. .0 .03 .o~.o .01 .0 .06 .01 .0/ .0/ .0/ .0 .05 .0 .0' .0 .0 .0 .01 .042 2 .09
13* .011.0  .0 .~} .01 .0 .04 .0 .O~ .0' .04  .OE .OE .O~ .O~ .06 .~~ .0/ .O~ .0' .O~ .05 .039 '22 .09
14* .05..0  .0 .0 .03 .0' .0' .0 .0 .oe .08 .1e .lC .0 .OE .O~ .06 .0 .0' .0' .0 .OC .01 .051 2~ .11
15 .O~ .01  .0' .03 .04 .0, .0 .OE .0 .O~      .O~ .05 .OE .O! .O~ . O. . O~ .03 .043 lE .10
16 .O~ .~:  .0. .~~ .03 .0, .0'       .0'  .0' .04 .O~ .O ~O .0: .0: .04 .035 I' .05
17 .0.0  .O~ .0 .02 .01 .O.i    .04 .0'  .02 .0. .02 .0 .0 .0 .0' .0: .03 .027 1« .04
18 .0 .0'  I .03 .O~ .02 .0. .04 .0.  .O.i .02 .0. .0; .02 .02 .0. .02 .0. .0. .0, .0, .0. .02 .021 2. ,04
19 I      I I I                 
20*       " I                 
 --I .02   t u -T~i -:-gl:~! :g~                 
21*  .01 .0 .01   .0' . o~ .0. .0. .04 .04 .0. .0' .0. .0: .0' .03 .028 2( .06
22 .O~ .O~   .0 .03  .04 .0; .0' .6~ .02 .0 .03 .0 .0 ,0 .0. ,0. ,02 .026 2 .04
23 .oz . o~   .01 .02       .O~ ,09 ,oe ,O~ ,0.: .~~ '~~ .02 ,036 U .11
24 .01 .O~  ,0, ,0 ,03   .0' .0' ,Ol .O~ .0, .04 .0 .O~ .O~ .0 .0 .02 .034 .07
25 . O~ .0'  .0' .~Oj.~~.4. ,O~ i I .0.   ,0' .0' .0' .0 ,04 .0' ,0 ,0'1    .040 1. ,07
 i                   
26  I    .051 .04 --.- 1--'-1-- . .0 ,0' .05 .O~ .O~ ,O~ .0' ,0' .04 .0 .~~ .0. .0. ,0 .02 .037 ~; .07
 I    .03 .O~.O .0'
27* .01, .02  .O~ .0' .04 .0 .O~ .0' .0' .0' .03 .0' .0 .0 .0. .0. .02 .032 ,06
28*                      
29  i    I  i .051 ,0. .05 .O!  .O! ,0' .O! .06 .~: .0: .0. .0 .OJ .03 .044 l' .0'1
30 .O~ ,0.  .O! ,Oil; .03 .0' .O~     .01 .01 .01 .0 .O~ .04 .0 .0: ,0 .0 ,0 .01 .042 1~ ,10
  I                          
  I                          
 i                          
MEAN .031 .03  .03 .03 .03 .02 .0 .O~ .OE .O .07 ,OE .OE .Oll .Oll .O"! .05 .0" .0 .0 .0 .0 .02 .039  
NO. 225123  21 23 23 23 21 18 18 19 19 20 20 21 21 26 26 26 26 .26 25 25 25  51/ 
MAX. ,05 .05  .06 .05 ,06 .051 .06 .08 ,10 .114 ,15 ,lC ,lC .10 .10 .09 .09 .08 .ot .Ot .OE .O~ .05 .056  ,20
       i                  
* Indicates Saturday or Sunday
local standard time used
TABULATED
WED.. 5EP. 10. 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department of Health, Education, and Welfare
c:c
o
Robert A. Taft Sanitary Er1gineefing Center
Cincinnati. Ohio 45226
DAY
DF
MONTH
---
----
MEAN
ND.
12.'
1
2
3
4p
5p
.0
.0
.0
.0
.0
. o.
6
7
8
9
10
. O~ . O~
.O~ .0
.Oli .0
.O?! .0
IIp
12i11
13
14
15
16
17
18p
19P
20
.,
21
22
23
24
25p
.03 .03
.04 .03
.04 .041
.02 .02;

:gr :g~1

.0 l' .0 11
.0 l' .031
.01: .01

.O~ .O~

.03, .O"!
22 , 2~
.051 .07
26<1
27
28
29
30
31
MAX.
* Indicates Saturday or Sunday
Local standard time used
-------
'-2
2-3
- -
i
r -
I
!
i
-j
I
I' 11
.06
"- -. - --
3-4
4-5
.0
.0
;
I .06. .04
i .02' .02
.011 .01 .02
I .02! .02
.O~! .03
i
.O~ .01

.031 .02
22 '122
.06 .05
T "ble 3-65
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
A.M.
---
- --
--
- .
5-6
7-8
q.10 10.11 11-12
8-9
6-7
.01
.01 .0' .0
.0/ .0/ .06
.0' .o~ .0' .0' .06
.0;;:.0 .0 .0' .0' .05
.03 .O~.O ~04 .1~ .09

.oJ .03.0 .O~ .0' .05
.,,~ .O~ 'O~.O .0" .05

.~~. r.J .08
00 I .0,.0 00~ .O~ .06


.01 .o~ ~.o~~ .01-:::

,0JI .0J .oJ .oJ 00~ ~05
! I :I 00~ .05
'-OU !'-O~ oO~ -:o~ 002
.01i .0; oOj .05; oOj .04
I I I I I
j ; I. oJ OO~~' .05
I ! .0' .06::~ :~~
00~ 002 00~ .O~ .05 005
.02) .04; .06; ._07: :~-! .07

.O~ .O~ .O~ .Ob 00 .06
003 00~ 00~ 00~ 00 .05
.OZ .05 .01 .09.0 .05
. O~! i.1. 07
.O~ .04 .05 .O~ 00 .07

.01\ i .O~ .04 .06

.OZ .ol:! .Ole .O~ .06 .05
19!16-\19 2~j23 25
.O~ .O~ .0" .0, .14 .09
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
P.M.
-.---
12-1
'-2
2-3
5-6
6-7
8-9
9.10 10.11
7-8
3-4
4-5
.0
.06 .0" .05
.0
.O~ .O~ .0, .0

00~ .O~ .0 .0
.O~ .0 .O~ .0
.06 .O~ .0 .O~
.0
.0
.0/ .0' .0" .0
.0/ .0 .0
.O! .0/ .0 00
. O~ .04
.0 .07
.0 .06
.0 .02
. O~ .04
. O~ .Olt
-.-------. ---
-- --.--
-
.0" .O~ 00~ .O~ 00~ .04
.0" .0. .0. .O~ .0. .05
.0 .0/ .0. .O~ 00~ .05
.0" .0 .oe .O!
.O~ .O~.O .0 00] .03 .0 .0 .0 .0 .0 .03

.O~ .O~ 00 .0. .01


.O~ .O~ .O~ .O~ .0 .04 .0' .0: .0 .0. .0 .Olt
.O~ .0" .O~ .O~ ~o .04 .0' 003 00. .0. .0. .02
4- I--
.0. .0 .0 .~~ .0 .02 .0. .0. .0 .0 .0 .01
.O~ .O~r .O~ .0 .Oi .03 .0 .0 .0 .0 00 .03




.O'~, .0. .0' ~;~-:-05 -;0; .0< ~ .0'.0 .03
.0' .O~ .0' .O~ .051 .04 .O~ .O~ .O~ .O~ .O~ .04
.0< .O~ .03.0 .0..1 .04 .0 .O~ '0::i .O~ .O~ .04
.O~ .O~ .Ole .O~ .0' .04 .O~ .0' .O~ .O~ .01 .02
.01 .06 .07 .07 .O~ .05 .O~ .O~ .0 .0 .O~ .02
----j- --
.0< .o~ .O~ .O~ 00, .04 .~~ .0, .0 .0. 00. .04
.00 .0. .O~ 00~ .0' 005 00~ .0' ~O .0 .04 .01
.06 .0 .0 .~~ .06 .07 .06 .04 ~03.0 .0 .02
.OE .lC .0 00' .O~ .04 .03 .O~ 00~.0 .0 .01
.0 .0 .0 .0 .06 006 .05 .O~ .O~ .0;;: .O~ .04
.0. .O~ .0' .O~ .0
.o~ .O~ .O~ .0' .0
.O~ .0 00 .0 .0
.06 .0' .O~ .0
.O~ .0
. O~ .04
. O~ .05
. O~ .0
.05 .O~ .0. .0' .O~ .05
25 25 23 25 23 23
.08 .10 .09 .OE .0 .07
00' .0
23 7.3
.O~ .0
.0 .0. .0 .03
23 2lt 23 24
.O~ .Ole .O~ .0'5
DE~VER .COLO. .
TOTAL OKIDANT
MAY 1968
11-12
DAIl.Y
MEAN
NO.
OF
HRS.
S.MIN.
MAX-
.0 .01 .02
.0 .O~ .03

-
.O~ .02 .02
.011 .01, .05
.0C .Oli .01
.O~ .O~ .01

i i
.o~ .O~ i I .O~ 003

.O~ .0, i j .0J 002.

::t~~i-J,,-~~- ::) -:::-
.01 .0 I .OJ .O~ 001
! i I I
I

.03: 003
.041 .04
.031 .02
. 0 1: .0 1
.03
.040
2
.08
.037
.042
.051
.05
.02
.03
.038
.043
.033
.042
.030
1 .06
2. .10
2' .21

2 .06
2 .07
1 c .09
-1~ .10
l' .05
1" .07
2. .06
1 c .06
~ ~ .04
2, .07
l' .06
2( .08
lE .06
2;;: .06
22 008

~ r .,0'60
2. ",06)
2' .1!Z)
H .13
2~ .08
2C ..07
50~
TABULATED
WED.. SEP. 10. 1969
.21
.035
.032
.039
.016
.027
.041
.043
.038
.032
.043
.041
.038
.040
.041
.046
.035
.038
.051

-------
" \" -~
Table 3-66
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division of Air Pollution, Public Health Service
U. S, Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A, Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
OENVER. COLO. '
TOTAL OKIDANT
JUNE 1968
co
"""'"
DAY       A.M.              P,M.       DAILV ND. 5.MtN.
DF                          9.10 10-11 11.12 MEAN DF MAX.
MONTH 12-1  1.2 2-3 3.4 4.5 5-6 6-7 7-8  8-9 Q.10  10-11 11-'2 12-1 1-2 2-3 3-4 4-5 5-6 6-7 7-8 8-9 HRS.
h .O~  .0.   .0, .02 .0. .04  .01 .0\  .H .09 .1e .OE .0 .01 .O~ .06 .0. .O~ .0 .0 .0 .01 .048 2 .13
2*                 
3                               
4                       .0.        
5         .0  .0' .0.  .O~ .01 .0' .0' .0' .0/ .0/ .05 .0' .0' .0 .0 .01 .046 1 .13
6      .0 .02  .0  .0 .0  .0 .03 .O~ .0   .04 .04 .0' .0' .0 '.0 .0 .02 .033 1 .08
1                               
8*                               
9*                              - 
10                               
11            .0 .01  .oc .11 .oc .OE .OE .0 .0    .0' .OJ .0' .04 .010 1: .13
1Z                               
13                               
lit                               
15*                               
16*  I                             
17                              
18                              
19  I         I   I                 
20          i-                   
       - - -"" --. ..-.                  
21                            
2Z*                            
u*  i                          
Zit          i                    
Z5  !    l-    I                    
       I                    
      -- 1-                  
26                        
21                        
28                        
29*  I         I                    
30*                              
MEAN 1  1    2      4   4 It 4 3 3 4 3 3 3 4 4 4 4  6~ 
    2 1  3  4  4  
ND,               .10  .10 .oe  .0., .0.,  .05 .O~ .O~ .oe .o~    .13
MAX. .04 .02   .02 .02 .02 .01 .01 .09 .11 .08 .06 .04 .010 
:cc Indicates Saturday or Sunday
local standard time used
TA8ULATED
WEO.. SEPt 10. 1969
[""'-

-------
-r:able 3-67
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. laboratory 01 Engineering and Physical Sciences
~ivision of Air Pollution, Public Health Service
U. S. Department 01 Health. [ducation. and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
c:c
r-..:>
Robert A, Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
DF.:"IVER.COLO."
TOTAL OXIDANT
JULY 1968
DAY         A.M                 P.M.      DAILY NO. 5'MIN.
OF      ~"--- -   -- --     --' ---          ----  OF 
MONTH 12-1  '-2 2-3  3-4 4-5  5.6 6-7  7.8  8-9  q.IQ  10.11 11-12 12-1 '.2 2.3 3.4 4-5 5-6 6.7 7.8 8.9 9.10 10-11 11-12 MEAN HRS. MAX,
1                                   
2                                   
3 .0,  .0'    .0.  .02 .0  .~!  .01  .0'  .01 .07 .01 .y~ .~: .0' .0' .06 .o~ .0 .0. .0. .0. .02 .044 21 .09
4    .0 .0  .01 .0  .0  .0        .1 .0 .0 .0' .06    .0 .0 .03 .041 1 .13
5 .03  .041   .0'" .0."  .02 .04  .0  .03  .0        .O~ .O~   .0 .0. .03 .04 .02 .031 H .07
- _.  --. --  .0' . -  --- h -       -- -  ---- -      - - - .-    
611 .o(  .0'   .02  .02 .0"  .03  .o~  .OE  .0  .13 .14 .14       .04 .04 .04 .01 .045 1 .16
711                  .oe .08 .o! .0 .o~ .O~ .o~ .05 .0< .0< .0 .0< .0< .02 .052 1< .14
8 .O~ .02    .Ot  .01 .0< .0." .0< .04 .O~ .07 .0 .o~  .04 .0. .06 .0' .0 .0 .0" .04 .02 .037 2 .07
9  I       .02 .03 .O~ .oe .1~      .1 .oe .0 .0 .06 .0   .0< .0 .02 .062 -14 .15
10          .0< .o~ *.23 010 .07 .o~ .0 .0 .0< .0.    .03 .03 .o~  .075 lc .38
  !                       
11         .02 .03 .O~.o .0 -: 1  .06 .o~ . o~ .0 .oe .Oc .07 .00 .0< .o~ .04 .0 .01 .051 U .17
12 .°1 .0      .02 .O~ .O~ 'OJ .11 .,  .08 .0 .0 .0 . o~ .0' .04    .0 .0 .02 .050 .15
1311                                 
14Q                                 
15       .02 ~0--.1...:1 ..11 .U .06 .01 .01 .01 .o~ . o~ .05 .0< . o~ .0. .0. .0. .01 .058 1~ .23
         -        1- --       
16 .01       .02 .o~ .o~ .0 I .1~ .1; .06 .~~ .0/   .0 .05 .~~   .0.   .057 t: .17
17      .0 .021 .02 .o~ .05 ~.1, .1~ .08 .0 .0 . o~ .o~ .0' .07 .0    .0.  .058 .11
18  I      1  .0 .03.0 .O~.o .07 .o! .o! .0 .0 .01 .05 .~; .0 .0. .0. .0 .02 .046 t: .09
19  I '°1-1-- I  .o~ :~, .o~ .11 -~1-1. :~-~ .l( .0/ .0' .04 .0 .05 .0 .0 .0 .0 .0 .01 .058 .2~
2011 .01,    .oe .o! .0 .oe .0 .07 .0 .0 .0< 00 .0 .02 .054 1e .13
  I               
- - ,    .--- 1--. --- -- --     - -    
2111  i       i    i                  
22         I                     
23         '                     
210             I                  
          I  '   .1-                
25        ;   j                    
 I     ..J                      
- ----+- --  -    .1-  I         .- - - -    
26        I   1  1   1                  
27Q  I        I  I   I                  
2811        I     !  I                   
29  1      I     I                      
 1                               
30  I      I                          
 I                               
  I          1                      
31 i   i     I                        
  I                            
MEAN  I     ~~ 11 14 115                      27C 
NO '\1 6   10  13  13  12  13 13 15 12 14 15 13 11 9 11 15 1!:i 13  
MAX. .03 .04   .O~ .o .02 .0J,.1C  .l  .23  .H .13 .1~ .1'" .oe .oe .oe .07 .0 .01 .01 .04 .01 .03 .075  .39
          i                        
::: Indicates Saturday or Sunday
local standard time used
TA8ULATED
WEO.. SEP. 10. 1969

-------
"V J. <)
. V.' '.
CONnNUOUS AIR MONITORING PROGRAM
Table 3-68
Air Quality Section, laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Semce
U. S. Department 01 Health, Education, and Welfare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
DENVER.COLO. '
TOTAL OXIDANT
AUG. 1968
co
c..,)
DAY       A.M.           P,M.       DAILY NO. S-MIN.
OF                           OF MAX.
MONTH 12-1  '.2 2.3 3-4 4.5 5-6 6-7 7-8 8.9 9.'0 ,()." 1'.12 12.' '.2 2.3 3.4 4.5 5-6 6-7 7..8 8.9 9.10 10.11 11.12 MEAN HRS.
1                            
2                            
)-                            
It-                            
5                            
6                            
1                            
8                            
9                           - 
10-                            
11-                            
12                            
13                            
lit                            
15                            
16   .01  .OJ .()2 .01 .0. .Oi .0' .O~ '()! .05 .O! .0' .O! .O~ .0' .05 .O~ .0' .0' .0. .0' .05 .038 l' .06
11- .O~  .Oi  .04 .02 .01 .O! .0 .08 .01   .04 .04 .03 .O~ .0. .0. .0 .0. .01 .031 2 .10
lh .01  .01  .~~ .0' .01 '()! .0' .01 .0 .0 .07 .0   .O! .O! .05 .04 .0 .0 .0. .0 .02 .033 2 .08
19 .01  .Oi  .0 .01 .01 .O! .O~ .O~ I   .01 .01 .01 .04 .04 .04 .0. .0. .0. .0 .0 .01 .028, 21 .08
20  L  .0. .0  -. ."(.1:-g: :-~:   .0' .0' .0' .O! .04 .03 .0. .0 .0.1 .0 .0 .01 .029 14 .05
    '-1----'  "08          .01     
21 .01/     .01 .011 .~e .~~ .O .011 .O! .04 .0' .01 .0   .049 t~ .11
22  !    .01 .02 .O~ .04 .O~ .O   .0 .03 .0 .0 .0 .0 .0. .02 .029 .11
2)  ,                      
21t-  i       I I                   
25.       . --L--L.                 
26  I    '-1'---'                     
21  I                        
28  I                        
29                            
30                            
31.                            
MEAN                           12~ 
NO. "  4  5 6 6 4 4 5 , 5 5 1 5 4 6 1 7 1 7 7 7 6 6  
MAX. .05  .02  .011 .03 .02 .03 .00; .06 .0 .0 .08 .OE .0 .0 .oe .O~ .05 .O~ .oe .O~ .0. .0' .05 .049  .11
* Indicates Saturday or Sunday
local standard time used
TABULATED
WE~.. SEPt 10. 1969
I"

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. LaboratofY of Engineering and Physical Sciences
Division 01 All Pollution, Public Health ServIce
U. S. Department of Health. Education. and Welfare
co
~
Robert A. Taft Sanitary Engineering Center
Cincinnati. Ohio 45226
DAY
OF
MONTH
--~------ - -
12-\
1.2
111
2
3
4
5
---
-. .
6
711
811
9
10 .01 ..0.

-~---
11 .01 .O~
12 .01 .O~
13 .01 .O~
1411 .00 .O~
~~- -_.Ol..0~1
16 .04 .O~
17 .01 .Ol
18 I
19 I
20
. O.
---.-
- - - -
2.3
3.4
45
. .
.
.01 .01
--
.0
----  i 
2111  
2211  
23  I 
24 .01 I I
25 .03 I 
 :
26
27
281!
291!
30
MEAN
NO.
1
15 14
.041 .(')4
MAX
~: Indicates Saturday 01 Sunday
Local standard t,me used
Table 3-69
HOURLY AVERAGES OF
GASEOUS POllUTANT CONCENTRATIONS
A,M
5.6
6.7
7.8
I
i
.o~ .01 I .Ot. 10
j . o. ~- ____I i I :. O~ .13
, :g~ :g~ :g~ :g~ .o~ .'or.oi .or:07
I .011 .011 .01 .oi .OJ .05, .111 .05 .04
.o~ .O~ .02 .02 I I '
, 01 011 01 02 .03 .04 .Ole, .05 .06
J . ~ --I. - 0 .1, 0 0 j ! r
I - 3 004 o-oJ 004
; .01 .0; .03 .OJ :g3 :g~ .04 .Oi .05

I I I: I
I I
! : I

.03 .051
.05 .04 .02
: .02 .03,
I

.0'
.O~
.O~
u - -. I
.01 .01 .O~ .O~I .00
.01 .01
.02 .01 .0 .01 .01
.03 .O~I .0' .03 .04
.02 .01 .01 .O~ .01
i i I
, I !

12 11 III
.04 .031 .04
I
.02 .03
: .03
.O~ .01
.O~ .03
.03; .03
I i
I
i
12 114
.05, .0
i
.01 .O~ .04 .03 .0. .0. .0 .0 .0. .01 .041 -14 .14
. .O~_._O/ .~' ~I-"~~ .O~ . .0'q~~_.~.0 .0 .01 .040 1 .16

00' .0, .0' .O~ .O~ .03 .0' .01 .0l!.0 .0 .01
.0' .O~ :~~ :~~ :~; :~ :~i~ :~~ :~( :~ J :~~
.O~ .05 .o~ .O~ .O~ .02 .0..0 .O~.O .O~ .02
_.~ -:::1-~ -..:'~I",:°l:~5 .0~~~..0_31' ,:,~4J-~ .04

.0 .03 .02 .O~.O .Ol! J .030
I I .OJ .0' .03 .0<:.0 .O~.O.O .026




1.0. .J I... .01.oL: -.:~o~~~-:-=-:=~-=-

.06 .o~." .o~ '0~i-.04 .0<: .01 .OU.O .O~ .01 .032 1 .Ol!

.05 -. ::~]--;OJ ::~-:: :::~; :~; :~J :-:-t ::~ ::: :::: :, :::

.06 .0 .0 .0 I .03 .01 .0 .O~ .O~ .oq .01 .031 1 .OR
.04 .04 .0 .~~ .~, .010.0 .o~ .02 .024 11 .05
.04 .O~ .0 .O~ .03 .0, .0. .O~.O .0. .02 .032 2 .08
.05 .0' .0 .O~ .0 .O~ .03 .0; .Oi! .03.0 .0 .01 .028 2~ .0'1'
-
.1~~1-1.1-1-'-~; -~2-1
,
8.9
q.1Q
.oj ." .05
. 11, .O~
.03. .0'
.0, .0'
.-
11
.OE
.0Ei .O~
.03 .0
.03, .04
.04 .04

I
,
:
,
13.1 15 15
.111.0' .13
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
P.M.
1.2
2.3
8.9
9.10 10-11 11-12
3.4
4.5
5.6
6.7
7.8
-_u_-.--- -------------.---
.0' .01 .01 .01. .0' .03 .0, .0 .0 .0 .0 .03
.031
.018
.024
.026
.037
.O~ .oe .03
15 9 8 17 17 17

.oe .O~ .O! .O! .O~ .05
.0. .0. .0 .0 .0. .02
18 18 18 17 17 16

.0. .0' .0' .0' .0' .04
.041
WED.. SEP. 10. 1969
.11
TA8ULATED
DENVER 0 COLO. '
TOTAL OKIOANT
SEPT. 1968
DAIL.Y
MEAN
NO,
OF
HRS.
'-MIN,
MAX.
.035
1e .09
2' .08
1 .05
2. .14
Ie .01
2:: .06

l' .04
1 ~ .05
33(
t::n

-------
.......\
CONTINUOUS AIR MONITORING PROGRAM
Table 3-70
Air Quality Section, laboratory of Engineering and Physical Sciences
D~ision 01 Air Pollution, Public Health Service
U. S. Department 01 Health, Education, and Wellare
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
Robert A. Taft Sanitary Engineering Center
Cincinnati, Dhio 4~226
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
DEIIIVER,COLO.'
TOT~L OXID~NT
OCT. 1968
Q:)
c.n
DAY       A.M.             P,M.       DAILY NO. 5.MIN.
OF                            MEAN OF MAX.
MONTH 12-1  1.2 2.3 3-4 4.5 5-6 6-7 7-8  8.9 9.10  10-11 1'.12 12.1 1.2 2.3 3.4 4.5 5.6 6-7 7.8 8.9 9.10 10-11 11.12 HRS,
1 .O(  .0'  .0' .0' .01 .~~ .O~  .0' .0' .0'     .0' .0 .02 .0 .0 .0 .0 .0 .01 .024 1 ,06
2 .0    .0 .0 .01 .0   .0' .oj .0/ .06 .01   .0/ .0 .03 .04 .0 .0 .0 .0 .03 .034 1 .01
3 .0'  .04  .0       .04 .~: .06     .04 .03 .0 .0 .04 .0 .0 .03 .032 14 .08
4 .0  .0  .0 .0 .00 .0 .0  .04 .0/ .1 .12 .0 .01 .01 .0/ .O~ .04 .04 .Oi .OJ .04 .0 .01 .038 2 .19
5* .0(  .8  .0 .0 .0' .0. .04  .04 .0' .0' .06 .0/ .0/ .01 .0/ .0' .03 .0 .Oc .0 .0 .0 .01 .032 2 .07
      --- -  .-.   .0'     .0'     .0'       
6* .~:  .o  .0 .0 .01 .0 .0.  .~: .0 .07 .O~ .O~ .~~ .0' .02 .0. .0 .0 .0 .00 .031 2 .08
7 .0  .0  .0. .0' .0' .04 .01  .0 .0; .0' .05 .01 .0/ .6' .0 .04 .04 .0 .Oi .0 .0 .0 .03 .035 2 .11
8 .04  .04  .04 .0 .02 .04 .0  .0. .0  .~; .04 .04   .0' .04 .02 .0 .0 .0    .029 -t: .09
9  I    .O! .01    .0' .0' .0 .06 .OJ ,0. .0 .0. .0' .03 .0. .OJ .0 .0 .01 .01 .035 .08
10 . 0 ~ .o(  .0. .01 .00       .0 .04 .0. .O! .01 .04 .04 .02 .O! .0 .0 .0 .0 .01 .027 1C .11
11  !    .OC      .O~      .O~   .O~        
12* .O~ .O~  .01 .01 .04 .0  .04 .oe .08 .0 .o~ .04 .O~ .01 .0 .0 .O~ .0 .01 .039 2 .11
13* .0, .02  .0' .0 .02 .0 .0  .0. .03 .O~ .04 .04   .04 .0  .0 .0 .0. .0. .0 .01 .020 '2( .05
14                           
15  i          .03 .O~ .04 .04 .04 .03 ,03 .0 .02 .0. .0. .0. .0 .0 .04 .028 l' .05
16 .O~ .~~  .0 '~l .00 .01    .~~ .04 .04 .0: .~~ .~: .0. .0, .02 .OJ .0; .0. . O~ '~j .03 .024 2( .05
17 .o~ .0  .0. .0 .00    .0  .04 .04 .04 .0 .0 .0 .0. .02 .0 .0 .0 .04 .0 .02 .028 2 .07
18 .0.0  .O( .Or.          .04   .0 .0 .00 .0: .0. .0. .O( .0' .01 .012 14 .07
19* .0 .OJ  .0 .01 .02 .041 .O~ .0:   I .0' .06 .0 .OE .O~          .037 l' .10
20*  I        I   -I                 
     -- --.-  . .4..-- ---                 
21 .OZ.O .O .O .01 .01 .0 .n~ .o~    .0   .04 .0: .03 " '~~ .0. .O~ .0. .02 .028 1~ .12
.O~     .~~
22 .0 11 .0  .01 .01 .02 .04 .. ~ ... .OE .09 .0   .O~ .O~ .04 .0 .0 .04 .0 .04 .04 .039 21 .11
23 .O~ .O~  .o~ .O~ .01 .041 .0 . o~ .O~ .O~ .06 .O~   .00 .04 .03 .Oil .~~ .OJ .OJ .OJ .02 .035 21 .10
24 .011 .02  .01 .01 .02 .0: .0   .0. .O~ .07 .OE .OE .OE .o~ .04 .04 .Oil .0 .0 .0; .0 .02 .043 201 .15
25 .Oz, .02  .01 .01 .02 .04 .0 I . O~ .OE .o~ .11 .11 .lE .26 .1 ~ .0 .07 .O~ .06 .0 .0. .0. .03 .067 2: .43
      -I-~-- - --" --I                  
26*                        
27*                        
28                        
29       I   I                    
'0          I                    
31                              
MEAN 1021 .02  .02 .Ot .01 .03    .05 .O~ .06 .06   .0' .04 .03 .O~ .O~ .041 .041 .02 .02 .033 43' 
NO. 05/19 1 20 20 t9 16 14  15 18  20 19 20 13 13 20 21 20 21 2t 21 20 20 20  
MAX. .05 .05 .03 .05 .03 .03 .O~ .01  .06 .08 .le .12 .11 .18 .26 .1 ~ .0 .07 .O~ .O~ .0 .O~ .O~ .04 .067  .43
:,): Indicates Saturday or Sunday
local standard time used
TABULATED
wED.. SEPt 10, 1969

-------
CONTINUOUS AIR MONITORING PROGRAM
co
0')
Air Quality Section. laboratory 01 Engmeering and Physical SCtences
Division of Air PollutIon, Public Health Service
U. S. Department 01 Health. EducatIOn. and Wel:are
Robert A. Taft Sanitary Engmeermg Center
Cincinnati, OhIo 45116
DAY
M~~TH ~;.1' T--~;-' ~3
- .---
1
Z~
3~
4
5
I .oe
.O~ .Oi
.O~ .o~
.09 .O~
.OJ .01
.o~ .O;!
.01, .O~
.02 .1
.01' .Ol!
.02 .011
6
7
8
9~
10~
,
11 I
12
13 .01 .09
_i~__.02 .OJ

16~ .01 .011
IN .02 .oi
18 .00 .011
19 .02 .O~
- ~O_H I
I

001 .OQ
.01

001' :o~
. 0 1 . 0 1:
.02 .02'
. 0 1 . 0 11
.01 .01
MEAN
NO
MAX
21
22
23~
24~
25
26
27
28
29
30~
.oti 001
22 21
.021 003
'" Indicates Saturday or Sunday
Local standard time used
Table 3-71
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
AM
3~c.-1 4.5 I 5.6 6.7 I 7.8 I 89 J q.10 J ~~~1 r 1 1"12

.09 .O~ .01 .q~ .O~ 1 .O!' .03
.O~ .O~ .01 .O~ .O~ .O~ .0' .0 .04
.09 .o~ .01 .O~ .O~ .O~ .O~ .0 I .11
, .O~ .oq .00 .ot .03 .04 .02 .04 .04
I .OJ .00 .01 .O~ .OJ .011 .°1 .01' 002

'I .0- ooJ .0J .0J.0.0
.0 .O~ .01 .O~ .or I .07
I .Ol! .01~ .01 .OL .03 .02 .02 .03 004
. .011 .Ot .01 .O~ .O~ .O~ .02 .O~ .03
I .O~ .O~ .03 .02 .02 .03 .03 .03 .04
-~---- --f : J ; ~-
, I II I I
, .Ol! .03 .04
.O~ .01 .011 .o~ .O~ .o~ .03 .,03
.02, .02 .02 .02 .02 ' I .02
, ,
. I
: .oq
.o~
.01i
.o~
.oq
i
I
1
.00
I
i
.01' .01
.01 .01
.01"1 .00
.00 .00
.01; .00
, 00~ .00 .00
I
.03
.02
,
.001
I Zgl
.03
.03 .03
.01 .02
.01' .01
I
.011 .01
21 i 20
.03, .03
j
, ,.02
.04 .O~ .04
I
I
1
I .01'
.00 .01 .03
.(\Q .01 .01'
.O~ ! I

I
I
I
I
,
.00 .00 .02 .02
.05 .09
,
.01 .03


.OJ 003
.02
.03 003
.0,' .03
.03
.01: .r11i

on2 .03
.02 .01
.00 .00
. 0 11 . ° 1:
.011 .03
.031 .04
.01 .01
.01 .02:
I
12.1
P.M.
- - --,------- ---
1-2 2-3 3-4 4-5 5.6
6-7
7-S- ';'9 T;:-;;--,~-,--;-t~
DE"JVER. COLO. '
TOTAL 0)( I DANT
 NOV. 1968
DAILY NO. S"MIN,
MEAN OF MAX.
HRS.
.017 Z .07
.022 2 .06
.025 2 .15
.019 Z .08
0015 2 .0"
  -
.015 1/ .06
.019 1E 010
.021 Z .07
.019 '2 .04
.021 1 ~ 004
.025 1 00"
.016 2 .04
0016 IF. .05
.018 1~ .04
.021 2 .06
.011 1 .06
0014 l' .05
.~~ .O~ .0 .0 .0 .02 .0 0 OJ 0 .0 .02
.0' .0' .0 .0 .0 .01 .0 :0 :0 :0 .Oe .01

.O~.o .0 .0 .0 .01 .0 .0. .0 .0 .0 .01
.0;1 .O~ .0 .0 00 .01 .0 00 .0 .0. .oe .01







J I - ~~j - - ~-~~~ .0

.0 .O~ .01 .I .01.0 .O~ .OC .0' .0 .03

:g~ .01 .o~ .01 :g~ :g~ :g :g~ :g~:g :g~ :g~
.-l--JJ-d l-l -- - - -- -~ --l-- t
.0) .o~ .o~ .o~ .O~ .03 .0' .O~ .0a'0 .O~ .02
.01 .01 .0 i :~~ :~~ :~~ :~. :~~ :~3 :~C :~~ :~~
J .0' .03 .O~ .03 .0 .o~ .01.0 .o~ .01


"4", ''', j .01 "l"~~O-'~\ .J .,~:,~:~~
. :-:l .01 _:OJ-~~3 _.o~ ::: 00 .0; .02 .O~ ::l-~:: :::: :: :::

0011 .011 .0 .011 .02 .0'.0 .01: .o~ .02 .02 0013 16 .05
.03 .03 .O~ .0 I .O~ .02 .01 .01 .02 .O~ .OZ .01 0025 ~~ .04
.O~ .O~ .O~ .o~ .03 .01 .0. .01 .O~ .O!I .oq .01 .017 Z, .05
.O~ .O~ .O~ .O~ .03 .03 0 0 03 03 .02 .02 .023 2~. 10
. . I. I. I
00 .01
.0 .02
.O~ .01
.02 .02
-
.011 .OZ! .02. .02 .0 .04 . OJ . O~ .O~ . O. .0. .02 .0 . o. .0 .0 .~j .01 0019  
20 ! 19 ' 2091 17 ' 16 20 19 17 17 19 21 23 23 24 24 24 23 23  47; 
.021 0051 .09 .051 .01 .11 .01 .01 .08 .0/ .0; .03 .0 .0: .0/ .0: .03, .03 .027  .15
           TASULATED WED.. SEP. 10. 1969
r
r..: n-'l

-------
CONTINUOUS AIR MONITORING PROGRAM
Air Quality Section. Laboratory 01 Engineering and Physical Sciences
Division 01 Air Pollution, Public Health Service
U. S. Department 01 Health, Education. and Welfare
Robert A. Taft Sanitary Engineering Center
Cincinnati, Ohio 45226
DAY
OF
MONTH
Table 3-72
HOURLY AVERAGES OF
GASEOUS POLLUTANT CONCENTRATIONS
CONCENTRATION IN PPM
POTASSIUM IODIDE ANALYSIS
------_._--~.~~-~ -_u-
12.1 1.2 2.3 3.4 4.5 5.6 6.7 7.8 8.9
4.5
---
h
2
3
4
5
.~~ .~!
.0 .0
.01 .O(
6
H
8*
9
10
.O( .O(
I - J
.O~ .0
. O~ .01
.od .OC
.od .OC
11 .01 I
12 .05 .O~
13 .03'1~O
14* .00.0
15* .01.0
1--
16 .00 .od
17 .00 .011
18 .03 .O~
19 .O~ .011

~. .00, ~o~"

21* .00 .01
22* .00.0
23
24

:: ~O~._~-

27 . 0 1 . 0 I'
28* !
29* .09
30 .00 .001
31
0:>
-.]
MEAN
NO
MAX
.00 .00
i
. 011 . 0 1
24 24
.051 .05
::: Indicates Saturday or Sunday
Local standard time used
.~! .Ql .00
.0 .Ol .01

.O( .OJ .02
. O' .05

.0 .0 .01
-.
.0 .OJ .01
.OJ .OJ .04
.0 .0 .01
.OC .01. .00

I i
I I. O~ .03
; .o~ .Cl05 .05
I .O~ .O~ .03
. .o~.o .00
-1- .~ ..00 __.00

:.0 .00 .00
! ~ .011 .00
; .01 .n~ .01
1.0 .o~ .00
L . O_~. . 0 11 . 0 1

i.O .og .00
: .o~ .O~ .00
I I
, I
;.0 .01 .01
-1.-. .

: I .021 .02
~ I ,
: .OC' .od .00
, .OC .od .00
I i
. .OC .001 .00
I' .01
22
.O~
.021 .01
26 ' 26
.00;1 .05
-- - ----
q.IO 10-11 11-12
12.1
1.2
2.3
3.4
.OC .~~ .0
.0 .0, .0
.0. .OJ .0
.0/ .0 .0
.OC .0 .0
.Q~ .Q~ .0
.0. .0- .0

. OJ .0 .0
.0' .OJ .0

.0 .0' .0
.0
.0

.0
.0
.0
.0 .6 .02
.0 .0 .01
.0/ .0 .01
.0 .0 .02
.0. .OC .00
.0 .05
.0 .02
.0 .04
. OJ .04
. O. .02
u-
-,
--. - -- -- ---------- -----~-- "---
+ ---
.OC .OC .0(1.0 .0 .03 .0, .0 .0 .0 .0
.04 .0 .1.0 .0, .02 .0 .0 .0. .0 .0
.0 .0 .0 .0, .O~ .02 ,.01 .0' .0/ .0' .0
.0 .nll'O .00.0 .01 .0 .0 .0 .0.
.O~.O .08 .0 .0' .0 .02 .0

.Ol! .Od .00. .or:o -:03 -.o~-'I- .0 .0 - :01--
.04 .03 .O~ .o~ .O~ .03 .01 .O~ .O~ .03
.O~ .od .oq .O~ .O~ ..03 .0:1 .O~ .0. .0. .00. .00
.O~ .od .00. .00 .O~ .04 .0'<1 .od .OC .OC .00

'Ol'°'j'°"j,Oj'O\ ,0' -,-OJ, 'OtOj'. .OJ 'O~J .0. .01
.01i I : I 1.01 .01 .00
:~~ :~~ :~~I :~~!, .0.0 .02.0 :~~ :~~
.oq .oq I '. .O~ .04 .O~ ., O~, .0. .0. .o~ .01
.o~ .00 I : :O~ .01 -'~ .~1. .01 .OC ~~-.:..o~

.og .no '09 .00 .0 .0 .01 .OC .OC .OC .01
.09 .00 'OUI'o~ .01 .03 .0 .0 I .0< .0 .0, .00

, : 'OJ .07 .01 .1~ .U .0' .0. .01
.09 .O~- .~1i .01i ._~. .O~ _.O~ -.:..051 .02 .01 - - -- -.- .. -h.- ,---

j i i i .02 .03, .01 .0. .OC .OC .01 .OC .OC .0'; .0' .00 .02
.01: .00 .01j .01i.0 .04 .O~ .O~ .01 .:

! . I .011 .O~ .o~ .0. .01 .00 .0 .0
.01), .00 .00 .011 .OC .02 .01 .00 .OC .Oc .OC .01 .01 .01
I I
.09 .09 .00

. 0 1! . 0 11 . 0 1
25 I 24"! 22
.O~ .O~ .03
.o~ .01

.011 .0. .03
24.1 23 25
.061 .O~ .08
.O( .O~ .01 .01 .01 .01
.0 .0 .0 .OJ! .01 .01
26 25 22 23 28 27
.O~ .1< .le .0' .0' .03
P,M,
5-6
6.7
7.8
8-9
9-10 10-11
.0. .0
.OJ . O.

.0 .0
.0 .0
.oe .0
.0 .0
.0, .0

.0 .0
.0 .0
.0 .0
.0
.0
.0
.0
.0
.01
.00
.01
.0
.0
.0
.0 .0 .0' .01 .04
.01 .OC .Oc .OC .01
.0 .OC .OC .OC .00

.0 .OC .OC .or .02
.0 .O~ .00..0 .O~ .04 .018
.~. .03 .o~ .0. .O~ .02 .035
.O~ .0q.0 .OC .00. .01 015
.~~ .00..0 .0 .~~ .02 :007
.01 .00 .09 .oc .Ol .01 .012

.oe ~~~ .0 .01 .01 .006
.01 .0. .03,.0 .O~ .03 .013
.0 .OC .O~ .or, .O~ .00 .010
.0 .0 .Oq .00 .OU .01 .011
.oe .OC .OU .od .od .00 .005

_..~'-~-:oJ, .O.~~~ .00 .004

.Ol .OC .00 .OC .0 .00 .009
!
.0 .01 .0q.0 .0 .02 .040
.0 , I .017
I I
.OC .OC'
. 0 ~ .OC
. 0 ~ .oe
.09 .oc
.O~ .01
2~.I 25
.04 .0'
I
.00 .00
.01 .00

. O~ .00

.Ol! .01
26 I 26
.O~ .04
.01 .01
27 26
.0' . O~
11.12
.02
.00
.04
.03
.02
.021
.017
.026
.032
.018
vV..I.
DENVER. COLO.
TOTAL OKIOANT
DEC. 1968
DAILY
MEAN
NO
OF
HRS
5-MIN.
MAX,
.023
.019
.015
.010
.025
.010
.017
.008
.003
.007
.015
.040
2
2
2
2
2
.06
.06
.06
.07
.06
2 .06
2 .05
~: .08
-1' .04
l' .10

1 c .05
21 .06
2 .05
2. .15
2 .06
11 .06
1 .06
~; .04
2 .05
21 .02
-
2. .02
2, .05
1 .15
H .08
I-
1 .04
1. .05

1/ .04
2 ~ .02

22 .08
57.
.15
TABULATED
WED.. SEp. 10. 1969
r

-------
SECTION 4.
SOILING INDEX
DATA TABLES
89

-------
- -
SOILING INDEX DATA TABLES
Tables 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 inval id 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 represented.
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 the 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 maximum
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 dai Iy
average from the column above.
91

-------
          Table 4-1       TABULATED 09/1'7169
        CONTINUOUS AIR MONITORING PROGRA~      
        A!SI SPOT (COH/I000 LINoFTo)      
 rAy     TJt.1E ISTARTTNCi HOUR)   DENVER C:JLOPAOO    JA"J/68
 OF                  
 r-',CNTH 0(100 0200 0400 0600 080(' 1000 1200 1400 1600 1800 2000 2200 AVG N MAX
                  (1) (2)
 01 2.0; 1. B 1.0 0.6 007 103 1.0 100 107 1.4 2.6 104 1046 12 206
 02 1.3 1.2 0.7 1. 1 2.5 1.3 106 2.4 3.1 2.4 1.9 109 1.82 12 301
r.t:> 03 3.4 3.2 ~.4 2.9 3.~ 1.9 103 0.7 1.5 0.4 0.5 1.2 2.04 12 308
t\:) 04 0.<; 0.3 0.2 .!.5 I.A 107 102 105 1.4 207 1.1 105 1040 12 207
 05 1.~ 100 003 0.6 209 207 0.9 103 103 104 005 005 1.29 12 209
 06 0.2 002 100' 0.8 103 009 105 104 OoR 104 103 109 loll 12 1.9
 01 2~2 202 2.3 2.2 200 304 106 2.1 2.0 203 201'1 308 2.52 12 3.8
 OR         0.7 1.8 303 101 1.5 0.9   
 09 0.9 0.9 0.'5 107 1.' 102 103 100 207 202 102 107 1.41 12 2.7
 10 2.2 206 2.'1 ~.5 501 108 305 209 3.R 200 109 303 3005 12 507
 11 3.1 2.5 20'1 ".5 l.o 1.1 0.5 0.8 1.1 004 0.5 1.0 1070 12 301
 12 O.~ 003 0.5 1.8 1 0" 1.8 104 102 206 2.6 1 0 1 105 1.49 12 2.6
 D 1.1 0.9 2'.? 1.7 1.9 1.3 1 0 1 2.4 4.0 306 1.8 106 2005 12 4.0
 14 1 . 2 (1.4 0." 1.7 0.0 1.0 0.9 009 0.9 102 004 005 0.93 12 1.7
 15 0.1 1.3  1.2 1.7 1.0 0.9 1.5 205 203 203 300 1.70 11 3.0,
 16 2.4 1.3 0.5 1.4 20~ 1.4 10) 200 302 307 3.2 1.4 2011 12 3.7
 11 1.2 0.5 1.? ~.3 3.~ 3.1 1.8 0.9 1.0 007 0.6 0.6 1.41 12 3.6
 18 0.3 0.0 0.4 1.4 1 . 1 0.8 008 101 209 2.1 101 1.3 loll'> 12 2.9
 19 2.2 0.3 O.~ 1.7 1.0; 0.9 1.2 1.8 2.3 2.4 1.6 0.8 1048 12 2.4
 20 0.0 '1.8 1.4 ~.6 noo 1.5 105 0.7 1.9 3.2 0.7 006 1.35 12 302
 21 1.8 0.2 0.6 0.5 0.4 001 006 1.1 109 1.4 103 1.3 0097 12 109
 22 005 1.4 1.1  1.l 201 1.5 102 102 0.6 008 0.1 1.10 11 2.1
 73 ('\.4 0.4 0.3 1.1'1 0.0 0.9 0.9 105 2.3 2.1 0.5 1.0 1.13 12 203
 24 0.<; 0.4  1.4 1.3 102 100 1.3 203 106 102 007 1.21 11 2.3
 25 ao'" 0.5 0.2 1 0 2, 10" 1.4 103 001 102 0.5 0.8 O.R 0.95 12 1.8
 26 0.3 001 0.4 ~.3 1 .0;. 009 100 009 102 006 OoR 005 0083 12 1.5
 21 0.4 0.3 0.0 001 1.7 105 008 104 004 10 1 009 1.0 0.91 12 1.5
 28 1.1 1.3 1.0 106 1.4 007 002 005 008 105 0.5 0.6 0096 12 1.6
 29 001 0.1 0.4 2.1 202 1.1 009 102 106 1.4 009 102 1014 12 2.2
 30 loR 2.0 1.5 ~.6 403 107 100 103 3.1 209 101 0.2 1.99 12 403
 31 004 n05 004 104 201 005 009 1.2 105 007 000 . 005 0.88 12 2.1
 AVG 1023 0096 1005 1061 1099 1040 1019 1.33 1096 1076 1019 1024 1.41  
 N (3) 30 30 28 2'1 30 30 30 30 30 30 30 30  357 
 ~AX* 304 3.2 3.4 j05 0;.7 304 305 2.9 4.0 307 3.2 3.8 3.05  507
 (1) N=NUMF!ER 01'" VALTD 20HR 5POT'S            
 (2) t.1AX=MAXTMUM 20HR COH IDV)            
 (3) N=DAYS WITH V/lLTD VALUES            
 III MAX=~\AX TMUM 20HR (OH IMn)            
 VALUES GREATER THAN 600 UNDF.RF.STT~/ITE. ACTUAL VALUE         

-------
          Table 4-2      TABULATED 09/17/69
       CONTINUOUS AIR MONITORING PROGRA~      
       AISI SPOT ICOH/IOOO LIN.FT.I      
 DAy    TIME ISTARTrNG HOURI   DENVER COLORADO    FEB/68
 OF                  
 t-ICNTH 0000 0200 040(\ 0600 0800 1000 1200 1400 1600 1800 2000 2200 AVG N MAX
                  (11 121
 01 0.4 0.8 0.7 1.2 0.9  0.5 0.7 1.0 0.4 0.6 0.8 0.78 11 1.2
 02 0.2  O.~ 1.0 1.5 1.4 2.6 1.8 2.3 0.7 0.5 0.6 1.21 11 2.6
 03 1.7 1.4 1.0 ~.6 1.'5 1.0 1.3 0.8 0.5 0.8 0.7 1.0 1.22 12 2.6
 04 0.9 0.1 0.4 0.6 0.::1 0.2 0.1 0.3 0.8 0.8 2.0 0.8 0.64 12 2.0
 05 o..~ 0.4  !.3 1.7 1.2 0.7 0.4 1.6 0.9 1.6 1.6 1.10 11 1.7
 0" 1.0 0.6 1.0 1.1 1. 1 0.4 0.5 0.7 0.6 0.7 1.0 0.9 0.83 12 1. 1
 07 1.3 0.6 1.0 ~.4 2.2 1.3 1.3 1.1 1.6 1.5 3.2 2.2 1.68 12 3.2
 08 1.7 1.0 . 1." ~.6 1.0; 0.8 1.0 0.9 1.3 1.0 1.4 1.1 1.36 12 2.6
 09 0.8 1.0 0.9 1.9 1"" 3.5 1.1 1.4 1.A 2.2 1.4 0.9 1.55 12 3.5
 10 0.8 0.7 0.6 1.1 1.4 1.4 1.3 0.9 0.2 1.6 1.5 0.9 1.07 12 1.6
 11 1.0 0.7 0.3 ':1.5 0.7  0.6 0.5 0.5 1.1 0.3 0.6 0.66 11 1. 1
 12 0.'5 1.2 1.2 2.7   0.5 0.3 0.7 0.6 0.7 0.4 0.7 0.91 11 2.7
 D   0.3 1.1 0.7 1 .1 1.0 1.0 1.3 1.7 1.3 1.2 1.7 1.16 11 1.7
 14 0.7 1.3 1.4 1.8 1.7 1.3 1.1 1.0 2.0 1.1 0.9 1.0 1.32 12 2.0
 15 2.7 1.0 3.11 0.8 1.4 .2.6  1.7 1.6 1.5 0.9 1.6 1.81 11 3.8
 16 2.3 2.6 2.7 ~.6 1.7 1.1 1.5 2.0 0.6 1.1 1.2 0.2 1.67 12 2.7
 17 0.6 0.7 0.7 !.3 1.1' 1.0 1.2 0.8 1.5 1.6 1.4 1.4 1.14 12 1.6
 18 1.0 0.8 1.0 !.5 1.(1, 1.4 0.2 1.0 1.0 0.5 1.8 1.0 1.11 12 1.8
 19 0.4 0.2 1.2              
 20                  
 21                  
 22                  
 23                  
 24                  
 25                  
 2"                  
 27                  
 28                  
 29                  
 AVG 1.05 0.89 1.15 ~.53 1.32 1.25 0.95 1.00 1.17 1.08 1.22 1.05 1.13  
 N 1::11 17 17 17 18 17 16 17 18 18 18 18 18  209 
 ~4X. 2.7 2.6 3.11 ~.7 2.2 3.5 2.6 2.0 2.3 2.2 3.2 2.2 1.81  3.8
CJ:)                   
W (11 N=NUMRER OF VALID 2-HP SPOTS             
 (2) MAX=MAXIMU~ 2-HR COw IDYl             
 (3) N=DAYS wITw VALID VALUES             
 . MAX=MAXIMU~ 2-HR CO~ IMOI             
 VALUES GREATER THAN 6.0 UNDERESTIMATE ACTUAL VALUE         

-------
           Table '4-3      TABUL~TED 09/17/69
        CONTINUOUS AIR MONITORING PROGR~'"      
        A!SI SpnT ICOH/I000 LINoFTo)      
 DAy     TTME ISTAQTINCi ~OUR)   DENVER C::>LORADO    \1ARCH/68
 OF                   
 "CNTH 0000 n200 0400 0600 OI.! 0 ('I 1000 1200 1400 1bOO 1800 2000 2200 AVG N MAX
                   (1) 121
~ 01                   
~ 02                   
 0"                   
 04       n06 002 006 004 0.4 005 005 002 0047 08 006
 05 0.9 0.4 0.] 0.1 10(' 005 001 007   008 002 002 004A 11 100
 06 001 0.4 0.1 005 104 100 007 004 003 006 005 0.1 0054 12 104
 07 n04 0.4 00\  204 208 102 103 loA 007 009 003 1015 11 208
 OA 003 0.3 000; Oob 103 008 009 002 100 102 004 003 0069 12 103
 09 002 o.t> 0.6 009 0." 009 106 008 005 009 005 002 007b 12 106
 10 0.0; 002   0.7 004 007 100 102 107 009 100 0089 10 107
 11 005 005 003 Oob 10"1 102 006 009 104 Oob 007 007 0082 12 104
 12 004 o.z 006 Ooq 204 102 007 104 201 009 103 102 1013 12 204
 13 008 0.5 0.4 1. U 103 009 103 006 103 109 103 100 1006 12 109
 14 0.3 ".7 001 102 0." 101 006 006 107 004 004 004 0073 12 107
 15 0.3 005 0.4 ~03 "04 .009 005 008 100 006 007 003 0068 12 103
 16 006 0.6 U04 106 1011 105 106 007 008 102 104 104 1017 12 108
 17 100 002  006 noli 001 004 000 00R 002 004 004 004R 11 100
 18 102 103     102 003 005 006 008 006 100 0086 09 103
 19 003 006 OoQ 007 101' 005 006 005 Oot> 108 006 001 0074 12 loa
 20 0.7 0.2 008 ~ 0 6 1.4 007 008 006 106 100 0.4 005 0090 12 106
 21 0.4 n02  009 Ion 007 007 009 009 007 003 0011 0070 11 100
 22 002 002  009 Oo~ 0.7 007 104 1.1 005 1.0 009 0078 11 104
 2" 001'> LJ.4 004 0.5 00" Oot> 005 004 009 0.8 007 008 0061 12 008
 24 004 0.8 0.7 U.5 Co (. 0.6 002 005   005 006 0.0 0051 11 008
 25 002 003 0.7 001 f'I II 006 005 004 007 OoA 009 005 005q 12 009
 - o'
 26 004 0.2 0.1  003 006 005 005 008 003 003 0.7 0048 11 008
 27     0.4 1.2 0011 004 004 006 100 007 003 102 0.76 10 102
 28 008 ('.2 O.~ ~03 1 .4 0.7 005 008 004 1.0 004 002 0070 12 1.4
 29 004 004 0.6 0.9 104 006 002 004 100 1.3 006 100 007a 12 1.4
 30 00"   0.7. ':/.4 1 . 1 0.7 006 007 0.1 009 003 004 0.58 11 1 0 1
 31 004                 
 AVG 0048 0.42 0045 0082 1007 0081 0066 0.66 0095 0086 001'>3 0058 068  
 N (3) 26 1'5 22 22 26 27 27 27 25 27 27 27  305 
 /o!AX* 102 103 0011 1.6 204 208 1.6 1.4 2.1 109 104 1.4 1017  2.8
 Il) N:NUM"!ER of VALID 2QHR S-p'C)T'S             
 (2) MAX:MAXIMU~ 2-HR COH IDvl             
 11'3.1 N:DAYS WITH VALID VALUE~             
 '* .WA'X=MAXTMII\1 2QHR -CO'" 1"101             
 v'M.'IJE'S .GREATER TH~N 600 :I!f1IIDFj
-------
Table 4-4
CONTINUOUS AIR ~ONITORING PROGRA~
AISI SPOT (COH/I000 LIN.FT.)
DAy
OF
t-
-------
              Table 4-5      TABULATED ~9/17169
           CONTI~IUOUS /lIR MON ITOR I NG PRQGRA"I      
           A!SI SPOT ICOH/1000 UN.FT.)      
CoO, !"JAy      TIM!,: (STARTI'Jr, '-lOUR)    DEt-.lVER (::1LOR'ADO    MAY/6e
OF                       
0'), MCNT,., OOuo 07.00 0400 0600 nRO('\ 1000  1200 1400 1600 1800 2000 2200 AVG N MAX
                       (1) (21
 01                       
 02                       
 001                       
 04                       
 05                       
 06                       
 07                       
 OR                       
 09                       
 10                       
 11                       
 12                       
 13                       
 14                       
 15                       
 1(,                       
 17                       
 lR                       
 19                       
 20                       
 21            0.3  0.5 0.2 U.3 0.2 0.2 0.3 0.32 07 0.5
 22 0.4 11.1 0.7. 0.6 f).Q 0.2  0.(, 0.1 0.5 0.3 0.4 0.1 0.41 12 0.9
 2~ n.] U.1  0.5 0.'; 0.2  0.4 0.6 0.0 0.6 0.5  0.40 10 0.6
 24 0.2 U.2 U.4 1.0 ".0 0.1  0.7 0.7 O.R 0.4 0.2 1.0 0.60 12 1.0
 25 r.5 0.2 o.~ 0.8 ,,~ 0.5  0.4 0.4 0.0 0.1 0.4 0.4 0.43 12 0.8
 - .. 
 2~ 0.] 0.1  U .4 0.7. 0.5  0.3 0.4 0.0 0.5  0.1 0.30 10 0.5
 27 0.3 0.2 0.2 1.0 C'.~ 0.2  0.3 0..3 0.3 0.5 0.2 0.5 0.41 12 1.0
 2~ 0.4 0.3 0.7 1.2 0.7 0.4  0.3 0.7 0.'1 0.0 0.5 0.2 0.51 12 1.2
 29 0.4 1"1.2 0.':' 0.8 1.] 0.6  0.6 0.6 0.7 0.5 0.7 0.6 0.65 12 1.1
 30 0.3 0.2 U.2 U.3 n.7. 0.2  0.3 0.2   0.4 0.5  0.32 to 0.5
 31 0.] 0.4 L'.4 U.5 O.~ 0.6  0.3 0.5 0.2 0.4 0.2 0.4 0.42 12 0.6
 AVG                       
 N ('I)                     121 
 MAX*                     .65  1.2
 11) N=NU~IE\EP f'lF VALTD 2-HR c;p':rr:s              
 (2) MAX=MAXIMUM 2-HR COI-I IDV)               
 '(3IN=DAyS wITH VALID VALUE5               
 '* MAX=r"'AX T MUM 2-HR 'COH ,1M'n               
 vALUES GREATER TH~t-.I 6,;0 U~DERESTJ MA:TE ACTUAL VALUE         

-------
          Table 4-6     TABULATED 09/17/69 
       CONTrNUOuS AIR ~ONITORING PROGRA~       
       A!51 SPOT ICOH/I000 LIN.FT.I       
 DAY    TIME ISTAPTING HOURI   DENVER COLORADO    JUNE/6~ 
 OF                  
 '"'ONTH 0000 0200 0400 0600 0800 1000 1200 1400 1600 1800 2000 2200 AVG N ~A)( 
                 (1) (2) 
 01 0.2 1'1.3 0.1 °.5 O.~ 0.6 0.2 0.4 0.3 0.4 0.4 0.4 0.39 12 0.6 
 02 0.6 0.3 (I.!! ~.2 0.0 0.2 0.2  0.1 0.5 0.3  0.34 10 0.6 
 03 0.2 0.2 0.3 0.9 (1.4 0.6 0.3 0.6 0.3 0.3 0.3 0.4 0.4() 12 0.9 
 04   0.2 0.9 1.1 0.-. 0.3 0.1 0.4 0.4 0.2 0.4 0.3 0.50 11 1. 1 
 05 0.3 0.4 0.5 1.0 0.0 0.6 0.7 0.7 0.5 0.4 0.7 0.7 0.64 12 1.0 
 06 0."  0."> 0.9 1.1'1 0.2 0.6 0.6 1.0 0.0 0.4  0.63 10 1.0 
 01 0.7 0.3 0.8 0.8 0.9 0.6 0.8 1.3 0.9 0.3 0.6 0.6 0.7!'i 12 1.3 
 08 O.!!  U.4 0.6 0.7 0.2 0.2 0.8 0.0 0.5 0.1 0.6 0.46 11 0.8 
 09 O.~ 0.3 0.3 ~.2   0.3 0.1 0.4 0.4 0.0 0.5 0.2 0.32 11 0.5 
 10 0.1 0.1 0.7 0.9 0.7 0.1 0.3 0.8 0.6  0.2 0.5 0.50 11 0.9 
                 -
 11 0.2 0.2 0.3 ~.3 0." 0.4 0.2 0.6 0.4 0.4 0.3 0." 0.50 12 1.3 
 12 0.4 0.2 0.4 1.0 0." 0.4 0.5 0.4 0.3 0.3 0.4 0.1 0.47 12 1.0 
 13 0.5 0.3 0.3 0.8 0.'1 0.4 0.4 0.6 0.2 0.3 0.1 0.6 0.47 12 0.8 
 14 0.2 0.2 0.2 0.6 0.0  0.6 0.7 0.7 0.2 0.2 0.2 0.47 11 0.9 
 15 0.3  0.4 ~.4 0.3 0.2 0.4 0.1 0.1 0.3 0.5 0.1 0.33 11 0.5' 
 16 0.4 0.2 O.~ 0.5 0.4 0.2 0.1 0.1 0.6 0.0  0.3 0.31 11 0.6 
 17 0.1  0.4 1.0 0.1           
 111                  
 19                  
 20                  
 21                  
 22                  
 23                  
 24      0.' 0.2 0.4 0.5   0.1 0.0    
 25    O.~ 0.1 0.4  0.1 0.2 0.0 0.0   0.20 07 0.4 
 26   0.0 0.1 0.4 0.7 0.2 0.4 0.2 0.2 0.3 0.2 0.1 0.25 11 0.4 
 27 0.2 0.4  U.3 0.3  0.2 0.1 0.0 0.1 0.3 0.1 0.24 10 0.4 
 211 0.1 0.2. 0.3 0.6 0.7 0.2 0.4  0.3 0.0 0.4 0.3 0.31 11 0.6 
 29 1'1.2 0.3 0.3 1,1.4 0.2 0.2  0.0 0.0 0.2 0.1 0.3 0.24 11 0.4 
 30   1'1.2 0.1'1     0.4 0.2 0.3 0.2 0.0 0.0 0.21 08 O.or. 
 AVG 0.32 0.23 U.38 0.64 0.53 0.32 0.34 0.46 0.34 0.23 0.30 0.32 .37   
 NI31 19 lA 21 21 20 19 21 20 22 21 21 20  239  
 MAXI! 0.7 0.4 0.9 ~.3 1.0 0.6 0.8 1.3 1.0 0.5 0.7 0.7 .75  1.3 
CC (1) N=NUMRER OF VALID 2-HR SPOTS             
...:J 121 MAX-MAXrMUM 2-HR CO~ IDYl             
 131 N=DAYS wIT" VALID VALUE~             
 I! MAX=MAXIMU~ 2-HR COH IMOI             
 VALUES GREATER THAN 6.0 UND~RESTI~ATE ACTUAL VALUE         

-------
           Table 4'-7      TABULATED 09/17/69
        cnNTI NUOUS AIR MO~IITORING PROGRA"1      
        AISI SpnT (COH/.1000 LIN.FT.)      
 DAy     TIME (STARTING HOURI    DENVER COLOP.ADO    JULY/6A
 OF                    
 ~CNTH 0000 0200 0400 11600 "~00 1000  1200 1400 1600 1800 2000 2200 AVG N MAX
                    (1) (2)
CoO                     
c:c 01 0.2 0.1   o.n 0.1  0.1 0.1 0.'3 0.1 0.1 0.'3 0.18 10 0.'3
 02 0.2 0.1 0.0 ':1.2 0.'3 1.2  0.'3 0.'3 0.4 0.1  0.2 0.'35 11 1.2
 03 0.2 0.3 O.Q !.5 0.7 0.4  0.7 0.4 0.2 0.5 0.6 0.4 0.61 12 1.5
 04 0.'1 0.4 n.n 0.6 0.'1 0.4  0.4 0.2 0.3 0.1 0.2  0.40 11 0.8
 05 ('.'1 0.2 0.7 0.3 0.' 0.4  1.0 0.6 0.9 0.7 0.1\ 0.1 0.50 12 1.0
 Of> 0.2 0.5 0.2 0.9 0.3 0.3  0.4 0.3 0.3 0.2 0.7 0.3 0.41 12 0.9
 07 0.4 0.2 0.1 0.5 0.1 0.1   0.2 0.5 0.2 0.2 0.2 0.27 11 0.5
 08 0.7 0.4 0.6 1.0 O.c:; 0.6  0.2 0.4 0.1 0.0  0.4 0.50 11 1.0
 09  0.4 0.1 0.8 1." 0.4  0.3 0.6 0.7. 0.3 0.1 0.2 0.44 11 1.0
 10 0.'3 0.1 0.7 ~.3 1." 0.6  0.1 0.6   0.1 0.4 0.4 0.55 11 1.3
 11 0.1 0.1 0.4 0.7 0.7 0.4  0.8 0.4 0.4 0.1 0.1 0.3 0.41 12 0.8
 12 0.4    0.2 0.8 0.6 0.5  0.2 0.7 0.6 0.2 0.3 0.1 0.46 11 0.8
 13 0.4 u.2 0.2 0.7 o.~ 0.5  0.6 0.3   0.4 0.2 0.3 0.41 11 0.7
 14  0.0 0.1  ('!.4 0.3   0.2 0.2 0.4 0.5 0.3 0.32 09 0.5
 15 0.4    0." !.3 1.0 0.7  0.4 0.6 0.1 0.5 0.3 0.5 0.63 11 1.3
 16 0.3    0.3 1.1 O.l' 0.4  0.3 0.5 0.5 0.4 0.4 0.6 0.49 11 1.1
 17 0.6 0.3 0.4 1.1 C04 0.3  0.4  0.5 0.4 0.4 0.5 0.52 11 1.1
 III 0.5    0.3 0.8 ".7 0.1  0.4 0.7 O.R 0.9 0.7 0.3 0.60 11 0.9
 19 0.7 0.0 0.0 0.6 1.(' 0.5  0.3 0.5 0.6 0.4 0.2 0.5 0.45 12 1.0
 20 0.3 0.2 0.) 0.8 0.7 0.5  0.4 0.2 0.2 0.2 0.5 0.5 0.3A 12 0.8
 21 0.1    0.5 .0.6 0.7 0.2  0.1 0.1 0.0 0.3  0.4 0.29 10 0.6
 22 0.2 0.1 0.0 0.6 0.4 0.4  0.4 0.8 0.3 0.4 0.2 0.7 0.41 12 0.8
 23 0.1 0.4 o.? 1.4 O.~ 0.6  0.5 0.4 0.5 0.3  0.7 0.57 11 1.4
 24 0.2 0.3 0.'3 !.3 n.. 0.2  0.6 0.4 0.5 0.5 0.4 0.1 0.46 12 1.3
 - . 
 25 0.7. 0.0 O.R 0.8     0.4 0.3 O.~  0.5 0.4 0.49 n9 0.8
 26 O. I 0.9 1.1 0.5 0.5 0.3  0.6 0.5 0.5 0.0 0.3 0.4 0.52 12 1.1
 27 0.2 0.1 0.3 ':1.2 0.4 0.2  0.'3 0.2   0.4 0.2 0.2 0.29 11 0.4
 211 0.4 0.3 0.4 0.5              
 29       O.R 0.3  0.1 0.7 0.5 0.3  0.4 0.49 07 0.8
 30 0.2 0.2 0.5 ~.3 O.R 0.2  0.9 0.5 0"5 0.5 0.3 0.3 0.55 12 1.3
 31 0.4 0.0 0.2 1.0 O.c; 0.1  0.3 0.4 0.5 0.0 O.A 0.4 0.42 12 1.0
 AVG 0.28 0.23 U.'I6 0.82 0.49 O.'3A 0.41 0.41 0.40 0.30 0.37 0.35 .40  
 ~I (3) 28 25 29 28 29 29  28 29 27 29 25 29  331 
 ~AX* 0.7 0.9 1. I :.5 J." 1.2  1.0 0.8 0.9 0.9 0.8 0.7 .63  1.5
 (I) N::NUMREp OF VALID 2-HR SP.C\T~S.:              
 (2)> MAX::MAXIMUM 2-HR COH (Dn')              
 nh,N::DAYS WITI-I VALID VALUES'"              
 II" MA'X::MAXTMUM 2-HR
-------
         Table 4-8      TAAULATED ('19/17/69
       CONTINUOUS AIR MONITORING PROGRA~      
       AISI SPOT (COH/I000 LIN.FT.)      
 nAY    HMF. (STAQTlNG HOURI   DENVER COLORADO    AUG/68
 OF                  
 "'CNTH 0000 02"0 0400 0600 o~on 100D 1200 1400 160D 1800 2000 2200 AVG N I,1A)(
                  (11 (2)
 01 0.1 0.1 1.7 1.2 0.7 0.4 0.1 0.1 0.6 0.4 0.3 0.0 0.53 12 1.7
 02 0.4 0.3 o.q 1.8 1.'5 0.7 0.6 0.5 0.4 0.3 0.3 0.4 0.72 12 1.8
 03  0.1  u.5 0.1 0.2 0.2 0.4 0.6 0.3 0.3 0.5 0.31 10 0.6
 04 0.1 0.6 11.3 U.3 0.7 0.3 0.1 0.2 0.4 0.4 0.3 0.1 0.32 12 0.6
 05 0.1 0.1 0.4 0.8 1.:'1 0.5 0.7 0.4 0.6 0.8 0.4 0.3 0.60 12 1.3
 06 0.1 0.3 0.9 1.1 o.~ 0.3 0.6 0.6 0.3 0.2 0.5 0.4 0.54 17. 1. 1
 07 0.1 0.6 0.5 1.2 1.1 0.6 0.3 0.6 0.1    0.67 09 1.2
 08                  
 09                  
 10                  
 11                  
 12      1).7 0.7 0.3 0.4 0.0  0.3 '0.1 0.38 07 0.1
 13  0.1 0.2 U.3 o.~ 0.6 0.6 0.4 0.1 0.2 0.4 0.3 0.44 11 0.1
 14 0.4 0.4 O.f> 0.6 0.5 0.3 0.5 0.9 0.7 0.5 0.2 0.1 0.52 12 0.9
 15 0.1   0." 0.8 0.;1 0.4 0.2 0.5 0.3 0.4 0.8 0.2 0.4'5 11 0.8'
 1" 0.4 0.2 0.6 0.9 0." 0.3 0.4 0.3 0.11> 0.1 0.2 0.3 0,,43 12 0.9
 17 0.4 0.4 0.2 ':1.4 0.'5 0.6 0.3 0.3 0.2 0.1 0.4 0.3 0.39 12 0.6
 18 0.9 0.9 l'1.q 0.2 o.~ 0.3 0.5 0.2 0.4 0.7 0.5 0.4 0.56 12 0.9
 lq 0.4 0.4 1.0 1.1 o.~ 0.2 0.3 0.1 0.6 0.5 0.2 0.5 0.65 12 1.7
 20 0.1 0.6 1.1 1.1 O.~ 0.6 O.f> 0.4 0.6 0.4 0.1 0.8 0.61 12 1.7
 21 0.5   0.6 0.6 0.1 0.4 0.5 0.4 0.6 0.8 0.6 0.3 0.58 11 0.8
 22 0.2 0.4 0.8 1.2 0.1 0.3 0.3 0.4 0.2  0.4 0.1 0.50 t1 1.2
 23 0.2 0.3 0.1 1.2 0.3 0.4  0.4   0.1 0.3 0.1 0.39 10 1.2
 24 0.3 0.1 0.1 0.2 1'.7 0.1 .0. ~  0.1 0.5 0.1 0.3 0.24 11 0.5
 25 0.3 0.1 0.1 0.3 0.1. 0.2  0.4   0.1 0.4  0.27 09 0.4
 2f> 0.3 0.2 0.0 0.9 0.'5 0.2  0.3 0.2 0.0 0.1 0.1 0.29 11 0.9
 21  0.3 0.2 0.3 0.4 0.2 0.9 0.7 0.1 0.2 0.2 0.5 0.39 11 0.9
 2~ 0.11 0.2 0.7. 1.2 0.4 0.5 0.2 0.3 0.6 0.2 0.3 0.3 0.41 12 1.2
 29 0.2 0.3 0.2 1.1 0.'5 0.3 0.7 0.5 0.5 0.2 0.5 0.3 0.4!! 12 1.1
 30 0.4 0.3 1.2 1.5 1." 0.7 0.3 0.4 0.3 0.9 0.5 0.6 0.7t 12 1.5
 31 O.~ 0.4 0.4 0.7 0.' 0.2 0.'5 0.2 0.4 0.3 0.7 0.6 0.411 12 0.7
 AVG 0.32 0.32 0.55 0.81 0.57 0.3R 0.41 0.41 0.42 0.35 0.35 0.31 .42  
 N (3) 23 24 25 26 27 27 24 26 25 24 26 25  302 
 ,...AX* 0.9 0.9 1.7 1.8 1.5 0.7 0.9 0.9 0.7 0.9 n.B 0.8 .72 1.8
GO                   
GO                   
 (11 N=NUMPEP OF VALID 2-HR SQr'lTS             
 (2) MAX=MAXIMUM 2-HR COH IDV)             
 (3) N=DAyS wITH VALID VALUES             
 * MAX=MAxrMUM 2-HR COH IMO)             
 VALUES GRFATEQ THAN 6.0 U~DERESTIMATE ACTUAL VALUE         

-------
            Table 4-9      TABULATED 09/17/69
         CONTINUOUS AIR ~ONITORING PROGRA~      
         AISI !iPOT (CO~/I000 LIN.FT.I      
.... DAy     TIME (STARTING HOURI   DENVER COLORADO    SEPT/6e
o oFI                    
0 McNTH 0000 021"0 0400 1'61'0 0800 1000 1200 1400 1600 1800 2000 2200 AVG toj MAX
                    (1) 121
 01 0.4 0.3 u.':\ ':1.2 0.1 0.2 0.2 0.2 0.4 0.5 0.0 0.5 0.32 12 0.5
 02     u.1. U.3 0.7 0.3 o.!i 0.0 U.3 0.2 0.0 0.3 0.26 10 0.5
 03   0.2 0.1 U.3 1.2 0.5 0.9 1.0 0.9 0.5 0.5 0.4 0.62 11 1.2
 04 0.2 n.3 0." 1.6 1. (\ 0.9 0.8 0.5 0.1 0.3 0.5 0.7 0.6!! 12 1.6
 05: 0.5 0.1 0.4 ~.3 0.5 0.3 0.4 0.6 0.2 0.3 0.4 0.5 0.50 I? 1.3
 06. U.2 1).2 0.7 0.9 0.'" 0.1 0.'5 0.3 0.5 0.4 0.5 1.1 0.54 12 1.1
 07 O.:? 0.2 U.4 ':1.2 n.5 0.4 0.3 0.2   0.8 0.4 0.2 0.40 1\ 0.8
 08 0.4 0.5 0.0 U.5 0.'1 0.4  0.3 0.4 0.6 0.6 0.9 0.49 11 0.9
 o 9~ 0.5 U.3 0.8 2.0 1.7 1.3 0.9 0.3 0.7 0.9 0.6 1.2 0.97 12 2.0
 10 0.'5 0.2 1.1 1.6 1." 0.6 0.3 0.7 0.6 0.7 0.5 0.5 0.76 12 1.6
 II! C. 1 0.2 1.7 1.6 0.7 0.2 0.5 0.1 0.7 0.8 0.5 0.6 0.65 12 1.6
 12 0.1'> 0.3 0.4 2.2 0.'" 0.4 0.8       . 0.79 07 2.2
 13        1 . 1 0.1 1.3 0.8 1.1 0.4 0.6 0.5 0.79 08 1.3
 14 0.5 0.1 0.2 0.6 0.4 0.4 0.4  0.7 0.4 0.6 0.3 0.47 11 0.7
 15 0.6 0.1'> 0.<; 1:1.5 0.2 0.2  0.6 0.4  0.4 0.4 0.47 10 0.6
 16 0.2 U.3 0.7 0.7 O.'!' 0.7 0.3 0.9 0.5 0.2 0.6 0.5 0.55 12 0.9
 17 0.<; U.2 0.5 0.7 ('.4 0.8 O."i 0.7 0.1 0.7 0.6 0.9 0.57 12 0.9
 18 0.4 0.8 0.".\ ~.5 1 . c; 0.3 0.5 0.6 0.4 0.6 0.7 0.8 0.74 12 1.5
 19 n.3 0.5 0.7 ~.5 1.0 0.4 0.2 0.6 0.5 0.3 0.5 0.6 0.62 12 1.5
 .20 0.::1 0.5 0.6 1.9 1.4 0.9 0.9 0.4 0.5 0.4 0.6 0.3 0.76 12 1.9
 21 0.3 0.1 2.n 1.4 1.1 0.5 0.4 0.9 0.6 0.5 0.2 0.1 0.72 12 2.0
 22 ~'. b 0.2 0.4 0.1 0.'" 0.2 0.2 0.1 0.3 0.3 0.4  0.35 11 0.6
 23 0.3   0.7 0.7 0.7 0.3 0.3 0.5 0.4 0.8 1.2 0.7 0.59 11 1.2
 24 0.2 0.2 0.2 1.1 0.1. 0.0 0.4 0.5 0.8 0.1 0.5 0.3 0.43 12 1.1
 25 0.1 0.1 0.5 0.8 o.~  0.2 0.8 0.2 0.5 0.8 0.3 0.52 11 0.8
 26 0.3 0.1 0.7 ~.4 o.r; 0.5 0.4 0.4 0.4 0.6 0.8 0.5 0.60 17. 1.4
 27 0.1'> 0.2 0.3 ~.5 ('.1:1 0.1 0.1 0.5 0.9 0.9 0." 0.7 0.64 12 1.5
 2~ 0.6 0.4 0.4 1.2 0.<1 0.7.  0.2 0.'5 0.2 0.3 0.1 0.49 11 1.2
 29 0.3    0.1 0.0 0.4 0.4 0.2 0.3 0.4 0.4 0.1 0.31 10 0.4
 30   0.7 0.4 0.8 1.1") 0.5 0.1 0.9 O.b 1.0 1.4 0.8 0.78 11 1.4
 AVG 0.".\7 0.30 0.'54 I.UO 0.72 0.41 0.46 0.49 0.50 0.51 0.54 0.52 .53  
 /I' (3) 21'> 2b 28 29 30 29 27 28 28 28 29 28  336 
 ~'AX* 0.6 (J.8 2.0 2.2 1.7 1.3 1.3 1.0 1.1 1.0 1.4 1.2 .97  2.2
 I  
 II:) N=NUMBER OF VALID 2-HR SP"TS             
 121 MAX=MA.
-------
         Table 4- 10      TABULATED 09/17/69
       CONTINUOUS AIR MONITORING PROGRA~      
       AISI SPOT ICOH/I000 LIN.FT.I      
 DAy    TIME ISTAPTrNG ~OllRI   DENVER COLORADO    OCT 168
 ('iF                  
 ~CNTH OOOrJ 0200 0400 0600 0110(1 1000 1200 1400 1600 1800 2000 2200 AVG N MAX
                  11) (2)
 01 n.f.> 0.5 0.5 ~.3 0.0; 0.4 0.5 0.3 0.5 0.1 0.6 0.6 0.57 12 1.3
 02 0.4 0.4 0." 0.6 0.4 0.4 0.4 0.4 0.4 0.1 0.5 0.5 0.46 12 0.6
 03 0.1 0.2 0.4 0.7 n.", 0.7 0.4 1.0 0.'1' 0.7 0.5 0.'3 0.61 12 1.0
 04 0.'5 0.5 0.'" 0.9 ".0 1.0 0.8 0.9 0.9 0.2 0.4 0.5 0.72 12 1.0
 05 0.6 ".2 0.6 U.4 0.3 0.3 0.3 0.1 0." 0.7 0.6 0.4 0.47 12 0.7
 0" 0.3 0.2 0.2 1!.4 0.2 0.4 0.'5 0.5 0.'5 0.8 O.R 0.5 0.4R 17. n.R
 07 0.4 1.0 1.0 1.9 0." 0.2 0.4 1.0 0.7 0.3 0.4 0.5 0.76 12 1.9
 OR 0.1 0.1 0.4 0.8 0.1': 0.6 0.7 1.4 1.0 0.5 0.4 0.2 0.59 17. 1.4
 09  0.4 0.2 1.2 0.7 0.5 0.3 0.4 0.9 0.3 0.4 0.3 0.55 11 1.2
 10 0.1 0.7 0.'" 1.R 1.'1' 1.2 1.0 0.6 1.3 1.4 0.7 0.7 1.02 12, 1.R,
 11  0.5 O.R 1.8 (1.9 0.9 0.3 0.6 0.9 0.4 n.B 1.5 0.88 11 1.A
 12 1.5 0.5 0.7 1.4 1.(1 0.9 0.6 0.4 0.6 1.3 1.4 0.6 0.94 17. 1.5
 13 !'.i!I 0.5 0.1 U.4 O.~ 0.5  0.5 0.'5 0.5 0.7 0.5 0.52 11 0.'1'
 14 0.2   0.4 0.8 0.11 0.1 0.6 0.4 1.0 0.5 0.4 0.3 0.5~ 11 1.0
 15 0.5 0.2 0.7 ~.3 O.~ 0.9 0.9 1.0 1.1 0.3 0.0 0.3 0.6'3 12 1.3
 1" 0.6 /').1 0.7 2.0 0.0 0.3 0.5 0.9 0.3 0.5 0.2 0.5 0.61! 17. 2.0
 17 0.4 0.2 0.2 1.7 C.7 0.6 0.3 0.9 0.6 0.4 0.4 0.6 0.63 12 1.7
 18 0.5 U.5 1.0 1.2 1.2 0.8 0.7 0.9 1.3 1.6 O.R 1.0 0.99 12 1.6
 19 1.2 0.6 1.9 1.9 C.o 0.6 0.4 0.3      1.02 08 1.9
 20                  
 21      1.1 0.6 0.4 1.3 0.4 0.6 0.4 0.5 0.70 O!! 1.3
 22 0.1 0.4 1.5 2.8 I." 1. 1 0.9 0.8 0." 0.1 0.6 0.4 0.96 12 2.8
 23 0.2 0.5 0.'5 2.0 0.0 0.4 0.4 0.8 1.1 0.5 0.6 0.4 0.74 12 2.0
 24 n.", 0.4 ".0 2.2 0.0 0.5 0.6 0.9 1.7 2.1 1.4 O.R 1.14 17. 2.2
 25 0.7 0.5 1.1 2.1 1.~ 0.9 0.7 1.6 3.0 2.6 1.0 1.1 1.42 12 3.0
 2" 0.0, n.5 /).'" 1.6 Z. 1 1.0 0.8 1.1 0.5 0.9 0.'3 0.4 0.97 12 2.1
 27 0.3 0.3 O. ,'I 0.7 (1.7 0.3 0.'5 0.7 0.4 1.6 0.9 1.7 0.75 12 1.7
 2R 1.3 U.3 0.6 1.6 2.7 0.9 0.7 0.8 1.2 1.6 0.9 0.9 1.13 12 2.2
 20 0.7 0.2 (I." 1.1 1.7 0.8 0.0 0.8 1.8 1.5 1.0 0.9 0.99 12 1.8
 30 1. 1 0.1 0.2 0.9 1.'5 0.8 0.6 0.9 1.5 0.5 1.0 0.6 0.85 12 1.5
 31 0.2 n.4 0.3 1.0 0.'"           
 AVG 0.'17 0.38 '1."5 ~.33 0.07 0.64 0.54 0.76 0.92 0.80 0.66 0.64 .73  
 N (3) 26 27 28 2R 29 29 28 29 28 28 28 28  336 
 //,IIX. 1.5 1.0 1.9 2.8 2.2 1.2 1.0 1.6 3.0 2.6 1.4 1.7 1.42  3.0
.....                   
0                   
..... (1) N=NUM8ER OF VALID 2-HR 5POT~             
 (2) MAX=MAX I,\1UM 2-HR CO~ IDYl             
 131 ,..=DAyS wITH VALID VALUES             
 . MAX=,'~AXIMUM 2_HR CO~ 110101             
 VALUES GRF.ATER T~AN 6.0 UNDERESTIMATE ACTUAL VALUE         

-------
            TobIe 4-11      TABULATED 09/17/69
          CONTINUOUS AlP MONITORING PROGRA~      
          AISI SPOT «(01-1/1000 LIN.FT.)      
~  ~                    
0 DAy      TIM~ (STARTING ~CUR)    DENvER C:lLORADO    NOV/68
N OF                      
 ~~CNtH 0000 1:1200 0400 0600 O~On 1000 1200 1400 1600 1800 2000 2200 AVG N MAX
                      (1) (2)
 01                      
 02                      
 O~                      
 0"         3.3 1.2 0.6 0.1 1.9 0.6 0.5 0.9 1.26 08 3.3
 05   1.3 O.b 0.6 ~.3 0.0 O.b 0.7 0.1 1.0 0.3 0.5 0.1 0.74 12 1.3
 0",   0.2    0.3 1.2 0.-4 0.8 0.8 1.6 0.8 0.5 0.4 0.75 10 1.6
 07 I 0.5 0.6 0.1'1 0.8 1." 1.5 0.9 1.7      1.04 08 1.7
 -OR                      
 09                      
 10                      
 11           1.7 0.4 0.9 0.9 1.0 1.4 0.7 1.03 07 1.7
 12   0.8 O.b 0.1':> 1.U 1." 0.5 1.0 1.2 0.9 1.3 0.6 0.3 0.91 12 1.6
 n   1.1 0.8 0.4 1.2 0.0 0.5 0.3 1.3 2.4 0.3 0.4 0.1 0.86 12 2."
 14   0.3 0.2 0.4 1.2 1.1 1.0 1.2 1.2 2.2 0.8 1.1 0.8 1.00 12 2.2
 15 I 0.7 1. 1 O.A 1.A I.Q Z.b 2.7 2.9 3.5 2.2 2.2 2.8 2.13 12 3.5
 16   1 . A 0.8 1.7 1.4 C'.p O.b 0.4 0.7 0.6 0.3 0.6 0.9 0.93 12 1.8
 17   0.0 0.2 n.5 0.1 O.A 0.3 0.6 0.3 0.4 0.8 0.5 1.0 0.59 12 1.0
 18   o. '.   0.9 0.9 1 ." 1.3 1.0; 1.5 2.8 2.3 2.8 0.8 1.57 11 2.8
 1<1   0.0 1.4 1.3 ~.4 2." 1.1 O.~ 1.0 2.4 1.3 1.0 0.9 1.45 12 2.6
 20 I 0.. '. 0.5 1.0 3.9 4.1 1.8 2.8 2.8 b.B 5.0 1.6 1.3 2.75 12 6.8
 21   1.1 0.8 1. 1 1.9 1.0 1.1 0.5 1.0 3." 2.3 2.9 2.4 1.74 12 3.4
 22   1. P. 0.7 0.0; ~.5 2.7 1.5 2.0 1.4 1.3 0.7 0.6 2.7 1.44 12 2.7
 23   1 . 1 1.A 0.3 0.7 0.7 0.6 0.4 O.b 0.8 1. 1 0.1> 1.4 0.8A 12 1.8
 24   0.0 0.8 0.1':> 0.8 0.1 2.4 0.8 0.1 0.1 1.3 1.6 1.b 1.07 12 2.4
 25   1. '" 0.9 1 . 1 3.4 3." 0.3 O.b 0.7 0.1 0.4 0.8 0.4 1.28 12 3.9
 26   O.A 0.5 0.6 2.1 1. a 0.7 0.8 0.9 l.4 2.5 1.4 1.3 1.33 12 2.5
 27   1.9 0.7 O.~ 1.4 2.3 2.3 1.4 1.7 3.1 1.7 0.3 1.0 1.57 12 3.1
 2A   O. '. n.5 O.A U.4 0.1 0.3 0.5 0.7 0.4 0.8 1.1 1.5 0.65 12 1.5
 29   0.6 0.3 0.1'1 1.0 1." 1.3 0.8 0.9 3.4 1.2 1.2 1.4 1.24 12 3.4
 30   0.6 0.5 0.0; 0.7 O.Q O.b 0.8 1.5 2.1 2.3 2.3 1.8 1.25 12 2.3
 AVG   O.R'7 0.70 0.70 1.35 1."5 1.09 0.9b 1.15 1.98 1.36 1.15 1.15 1.17  
 N (~) 23 21 22 23 23 24 24 24 23 23 23 23  272 
 I.-AX* 1 .9 1.8 1.7 3.9 4.7 2.b 2.8 2.9 6.A 5.0 2.9 2.8 2.75  b.A
 (1)1 I~=NLJMBEQ nF VALID 2-HQ C;PrJTS              
 (2)  MAX=MnXTMlI'" 2-HR COH IDV)              
 (3 I  N=DAYS wITH VALID VALUES               
 * I MAX=MAXT,~lI\1 2-HR CO'~ (Mnl              
 vALUES Gf
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           Table 4-12      TABULAT£DM/I7169
        CONTINUOUS AIR MONITORING PROGR~~      
        A!SI SPOT ICO~/I000 LIN.FT.I      
 DAy    TIME 15TAQTyNG HOUR)    DENVER COLORADO    DF.Cl68
 OF                    
 t'CNTH 0000 0200 0400 0600 0800 1000 1200 1400 1600 1800 2000 2200 AVG "J MAX
                    111 121
 01 0.7 0.6 0.5 0.8 O.~ 0.5 0.2 0.3 0.7 1.0 1.5 0.7 0.69 12 1.5
 02 0.0; 0.8 I.' 2.2   0.2 0.5 0.8 1.3 2.2 2.8 2.1 1.39 11 2.8
 C'3 0.1 0.2  1.2 1.0 0.4 0.9 1.1 1.4 0.6 !:I. 4  0.3 0.75 11 1.4
 04 O.R 0.5 0.4 0.5 2.1' 0.6 0.7 1.0 1.4 0.4 0.6 0.5 0.83 12 2.0
 05  0.3 0.7 1.2 I.~ 1.5 1.7 1.3 3.3 2.0 1.3 0.4 1.4' 11 3.3
 Ot'. O.R U.5 0.1 2.1 1." 0.9 0.7 1.1 1.5 0.4 0.7 0.4 0.96 12 2.1
 07 0.4 0..1 0.3 ~.2 0.'" 1.0 1.0 1.2 1.5 1.8 1.9 2.0 1.04 12 2.0
 OR 1.8 1.4 1.n 0.8 0.4 0.4 0.8 0.3 0.5 0.9 0.8 0.9 0.88 12 1.8
 09 0.7 0.9 0.9 !.3 1." 1.8 1.4 1.0 3.1 2.8 1.4 1.1 1.53 12 3.1
 10 1.0 1.4 1.7 4.1 0.7 0.8 0.8 2.0 4.3 2.9 0.8 1.1 1.83 12 4.3
 11 0.3 0.0 0.6 0.9 1.;a 0.7 0.4 0.6 1.2 0.6 0.3 0.5 0.67 12 1.3
 12 0.4   0.2 0.6 o.(&. 0.7 0.5 0.5 0.'1' 0.5 0.3 0.0 0.50 11 0.7
 13 1'.3 0.1  1.4 1." 0.7 0.4 0.9 2.0 0.7 1.4 2.6 1.09 11 2.6
 14 2.4 2.4 2.9 1.7 I.!! 2.4 2.6 1.5 1.5 2.0 2.5 3.5 2.31 12 3.5
 15 2.4                   
 1"         1.5 1.3 2.1 2.9 2.7 2.6 2.2 2.24 07 2.9
 17 2.3 2.8 2..2 3.3 2.11 1.4 0.6 1.2 1.9 1.3 0.8 0..4 1.80 12 3.3
 18 0.3 0.2 0.4 0.6 1.2 1.9 1.1 0.6 2.1 1.2 1.5 1.2 1.05 12 2.1
 19 0.'1' 0.8 0.7 1.6 1.4 1.1 0.'1' 3.1 2.4 1.8 1.3 1.8 1.48 12 3.1
 20 0.<1 0.2 0.5 1.7 0.3 1.4 . 1.2 1.1 1.5 2.2 0.'1' 1.1 1.10 12 2.2
 21 O.A 0.5 1.1 0.6 I.'" 1.3 1.0 0.9 0.9 0.8 o.~ 0.7 0.93 12 1.5
 22 0..6 0.7 0.5 '0.8 0.7 1.0 0.3 0.2 0.3 0.6 1.1 1.0 0.61:1 12 1.1
 23 2.0 1.1 0.4 !.5 1.0 2.4 2.7 2.8 4.3 3.9 2.0 1.2 2.22 12 4.3
 24 1.4 2.2 1.0 3.4 3.2 3.1 1.6 1.9 2.2 1.6 1.8 2.2 2.25 1:2 3.4
 25 1.'1 1.4 0.0; 0.7 1.('1 1.5 1.0 0.4 1. 'I' 1.3 1.7 0.4 1.12 12 1.7
 2" 0.2 0.3 1.8 3.2 2.7 1.4 0.9 1.5 2.<1 1.2 0.7 1.0 1.52 12 3.2
 27 0.':' 0.3 0.4 1.2 1.0 1.4 1.0 0.8 1.0 0.9 0.6 1.0 0.9t'. 12 1.9
 28 0.7 0.6 o.!! 0.8 1.'5 1.4 0.6 0.7 0.6 0.5 0.3 1.A 0.91 17. 1.8
 29 1.3 0.7 0.2 0.8 0.'1' 0.4 0.9 0.2 0.9 0.6 0.9 0.6 0.72 12 1.3
 30 1.1 0.4 0.4 1.1 1.4 1.3 1.1 1.1 2.9 1.2 0.6 1.2 1.18 12 2.9
 31 1.7. 1.3 1.3 2.8 2.'1' 1.0 1.3 1.3 3.1 1.0 1.0 0.8 1.61 12 3.1
 AVG 0.96 0.81 0.87 1.48 1.4'2 1.20 0.99 1.11 1.86 1.38 1.16 1.15 1.21  
 "'13) 29 28 27 29 28 30 30 30 30 30 30 30  350 
 MAX* 2.4 2.8 2.9 4.1 3.2 3.1 2.7 3.1 4.3 3.9 2.8 3.5 2.31  4.3
....                     
Q                     
W III N=NUW'!ER OF VALID 2-HR SPOTS              
 12) MAX=MAXIMUIII 2-HQ COH IDVI              
 131 N=DAV5 "IT~ VALID VALIJE~               
 * MU=MAXIMUM 2-HRCOIol (MOl              
 VALUES .GREAJER THAN 6.0 U~JDFRESTI "lATE ACTUAL VALUE         

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