.tober 28, 1976
Mobile/Stationary Source Contribution to Short-
Term N02 Concentrations
Robert D. Bauman, Chief
Energy Strategies Branch (MD-12)
John O'Connor, Chief
Standards and Cost Analysis Branch (HD-12)
Item I of your memorandum dated March 24, 1976, requests, among
other things, development of Information on the above subject relative
to the South Coast A1r Basin. As you know, Dr. Chris Caenepeel worked
on this project. At the time of his departure, he compiled a summary
\'\
of all the Information he was able to gather on this project. Two
copies of the suraaary are enclosed. Several files containing the
original documents In support of this suromary are available 1n my
office and will be placed at your disposal, 1f you should need them.
2 Enclosures
cc: Joseph Padgett (w/o enclosure)
ESB: CM1 randa: cgc: MU: Rm937: ext .XW345:10/28/76
-------
Jlober 28, ln7C
MIe/Statianary Source Contribution tn Short-
rr,. NO,, Concentrations
ri. Baunan, Chief
Fnerny Strategies Branch (?'D-12)
John O'Connor, Chief
Standards and Cost Analysis Branch
Item T of your rcewrandum dated -arch 24, 197f , requests,
other things, development of information on the above subject relative
to the South Coast Air Basin. As you know, Pr. Crris Caenepeel worked
on this project. At the tine of his departure, ho compiled a summary
of all the InforiTOtiorr he was able to pather on this proiect. Tvo
copies of the surnary are enclosed. Several files containinn the
rrininal documents in support of this summary are available in my
office and will bfi placed at your disposal, if you should need them,
2 Enclosures
cc; Joseph Padqett (w/o enclosure)
-------
MOBILE/STATIONARY SOURCE CONTRIBUTION
TO
SHORT-TERM N02 CONCENTRATIONS
IN
SOUTH COAST AIR BASIN
-------
TABLE OF CONTENTS
Page
Summary 1
Appendix A A-1
Appendix B B-l
Appendix C C-l
Appendix D D-l
Appendix E E-l
-------
SUMMARY
On March 24, 1976 ESB received'a request from SCAB to provide
some technical assistance for the the development of alternative
strategies to control elevated short duration peak exposures to ambient'
nitrogen dioxide (N02) concentrations. One of the major outputs of
ESB's study should be an evaluation of the contribution of mobile and
stationary sources to repeated peak exposures and highest annual one
4
hour exposures to N02.
After careful examination of the NOX emission inventories and N02
ambient air quality data for various areas of the United States, it was
. »
decided that a study should be initiated which focuses on the South
Coast Air Basin near Los Angeles, California.
Figure 1 is a map of the metropolitan Los Angeles (AQCR 24) area.
Table 1 summarizes some of the N0£ air quality data for 24 monitoring
sites in AQCR 24. Each of the sites in Table 1 has at least 75% of its
hourly 1974 N02 values which are judged to be valid. Fourteen of these
sites exceeded the annual air quality standard for N0£ (annual arithmetic
average of 100/ig/m3).
-------
INJ
u
\
LOS
tesoda
est L.
"V
"1
ANGELES
. eftrlmnk
A. L'A-
L
Azusn
Pomona /
^'
i
i
1 SAN BERNARDINO
/ 9 San Bernardino
r: " - i ' "
Lennox / w >
s La llabra\
Doac/ \
r * v
Anaheim
ORANGE
RIVERSIDE
Figure 1 Map of the Metropolitan Los Angeles AQCR
-------
TABLE 1
Summary of 1974 N02 Air Quality Data
for Monitoring Stations in
AQCR.24
Station
Anaheim
Azusa
Burbank
Chi no
Costa Mesa
LaHabra
Lennox
Long Beach
Los Angeles
Los Angeles
Los Angeles County
Lynnwood
New Hall
Norco
Pasadena
Pomona
Redlands
Riverside
Rubidunx
San Bernardino
Santa Barbara
Up Land
Up Land
Whittler
#Valid
Values
7993
8269
8280
8157
7970
7827
8254
7890
7959
8184 ...
8390
7918
8174
8146
8085
8270
7734
7744
8232
8058
7861
7184
7784
8096
Highest
24 Hr.
Value
yg/m3
392
355
367
195
317
.310
353
378
454
404
331
339
141
165
391
311
243
235
149
291
179
296
219
426
Arithmetic
Mean
yg/m3
105
118
134
63
56
106
119
126
141
134
108
102
57
53
138
129
72
93
50
83
58
in
92
102
-------
The annual nitrogen oxides emission inventory for AQCR is tahU|
in Table 2. This table clearly points out that mobile sources COHK.-.
over 60% of the total NOX emissions in the South Coast Air Basin.
The question we must now ask is whether an annual NOX emission
inventory provides a clear picture of the cause of the NOx air qu.il1.-
problem in the Los Angeles Area. For this reason an attempt has |>0e
made to generate diurnal variations of NOX emissions.
Diurnal variations of NOX emissions from five major emission
(Mobile Sources, Electric Utilities, Refineries, Small and Major
and Domestic/Commercial/Institutional Sources were approximated, -j-u
details of these computations are summarized in appendices A, B, and
- Table 2
Annual Nitrogen Oxides Emission
Inventory for AQCR 24
NOX
Emission Emissions
Category (Tons/Yr.)
;
Electric
Generation
(Point) 150,906
Industrial Fuel
(Area) 13,682
Industrial Fuel
(Point) 6,977
Commercial/Institutional Fuel
(Area) 17,847
Commercial/Institutional Fuel
(Point) 4,074
Internal Combustion
(Point) 6y953
Industrial Process
(Point) 3ff,0~35
Transportation
(Area) 389,237
Miscellaneous 4,143
Total 631,914
-------
It was found that there was a seasonal variation in NOX emissions;
therefore, diurnal variations were developed-for August and December.
In order to magnify the hourly variations for NOX emissions the results
are summarized on semi-logarithmic plots in Figures 2 and 3.
A review of this figure enables one to arrive at the following con-
clusions:
1. Mobile Sources are the major cause of NO emissions during
. ^
every hour of the day in both August and December. The
hourly variation of this category of emissions is rather
drastic (8.1 - 75.4 tons/hr in August; 8.4 - 78.8 tons/hr.
in December). The percentages of NOX emissions attributable
to mobile sources during the time periods 0000-0600, 0600-0900,
0900-1500, 1500-1800 and 1800-2400 are approximately 35%, 70%,
70%, 75%, andd_50%, respectively. The peak emission periods for
mobile NOX emission are 0600-0900 and 1500-1800.
2. There is no diurnal variation of NOX emissions from refineries
and Industrial Sources. The hourly contribution of these com-
bined categories to the overall NOX emissions vary from approxi-
mately 40% during early morning hours to 10% during the mid-
afternoon.
.3. There is a considerable variation (10.2 - 2.670 tons/hr.) in
.-" NOX emissions from Domestic/Commercial/Instjitutional in August
* . r
and low variations in December (2-5.2 tons/hr.). However, the
.hourly contribution of this category of emission is slight (less
than 7.5%). The peak periods for this category of emissions are
0400-0900 and 1900-2200.
5
-------
IO
WEEKLY AVERAGED DIURNAL VARIATION OF . ' Ifgg^Brgr:^
^rpZ^i:^ NOX EMISSIONS FROM STATIONARY AND MOBILE SOURCES ^~
South Coast Air Basin - August 1974
(Semi Log Plog)
Figure 2
i J_
i ! I
ZtZHLT
St
-r-H-l-'Hr
-rrj
"t'T
-f-{-
TT
T
~F"
246
: ! (j
1 1
5ff
rrr-
T
T' : ;Q = Electric Utilities ..
| j i i * = Refineries
= Small & Major Industrie
mi
Mr
r-j-A = Domestic/Commercial/
i i i i
Institutional
« HDV'r
-------
CO
I
-- .
CO
o
pI
CO
-: X
o
8 10 12 14 16, 18 20 22 24
-------
4. There is a significant variation (4.8-9.4 tons/hr. in August
and 6.4-11.0 tons/hr. in December) in NOX emissions from Elec-
tric utilities. The hourly contributions of this category of
emissions vary from about 20% in the early morning hours to
about 10% in the mid-afternoon. The peak periods for this
category of emissions is rather broad (0600 - 2400).
The diurnal variation of NOX emissions in the South Coast Air Basin
provides a global view of the causality of NOX emissions. In order to
obtain a local view of the NOX emissions picture we need to examine the
spatial distribution of NOX emissions. ;;j
Table 3 and Figure 4 identify the approximate location of the 17 power
plants in the South Coast Air Basin. Table 4, Figures 5 and 6 provide a
grid representation of NOX-emissions (tons/day)-for the months of August
and December during 1972. J
A spatial distribution of NOX emissions from mobile sources is not
readily available; however, it could be computed from the freeway and
street traffic distributions presented in Figures 7 and 8. To aid in this
analysis it should be noted that daily NOX emissions in 1974 attributable
to both heavy and light duty vehicles was 990 tons and approximately
155 x 10 vehicle-miles (sum of freeway and non-freeway) are traveled
each day in the South Coast Basin. ; ;
-. To aid in the establishment of a causal relation between NOX emissions
and N0£ air quality, NOg hourly measurements for the time periods August
14-18 and December 18-22, 1974 are summarized in Appendix D and E.
i
f
...... - , n
8
-------
TABLE 3
Approximate Location of Power Plants
in South Coast Air Basin
Plant No.
1
2
3
4
5
6
8
9
10
11
12
13
14
15
16
17
18
Plant
Magnolia
Oliver
Glendale (Grayson)
Harbor
Valley
Scattergood
Alamitos
Broadway
Glenarm
Redondo Beach
Etiuandu
El Segundo
Haynes (Seal Beach)
Huntington Beach
Ormand Beach
Highgrove
Mandalay
San Bernardino
Location
Burbank
Burbank
S.E. of Burbank
Southern'end of
Hafbor Freeway west
of Long Beach
N.W. Burbank
Playa del Ray
west of Lennox
East, Northeast of
Long Beach
Pasadena
Pasadena
South of Lennox
East of Up Land
S.W. of Lennox
N.W. of Huntington Beach
S.E, of Long Beach
Oxnard
N.E. Riverside
Oxnard
San Bernardino
-------
tftt*"" .... .."-
t'.^^^--- "~*12
** LOS ANGELES CO.
-'- ('
/,"'' '''.V WN 0FHHAnO/HO
-***- MOUNTAINS
... -X.
<* ""s.
"^^
SAN OABHtEL MOUNTAINS
23 *TI 6.FONTANA
UPLAND
SAN BERNARDINO
LOSANGELES
'10 LOS ANGELES
13«LYNWOOD 24
HITTIER- .7
LAHABRA
6 VtOSTA MESA
N02 Monitoring Sites
/ * Power Plants
Figure 4 Tha 24 LAAPCO and California ttate iltw In the Lot Angeles Basin.
-------
TABLE
- -;r "
CJKOCR/iJ
IMIIC UiSTKIhIJTION
Grid Daily NOx Emisoiona in Tone/Day
Grid I/jc/itton ' Avenge
. E-W . N-S Mnjor City Dec. '72 Aug. '72 July.'72-June '73 Major Plants
39
37
30
38
36
45
40
37
30
46
40
.38
Zl 39
39
39
.36
38
38
29
' 36
39
40
47
41
30
40
41
373
374
373
374
375
377
372
378
377
376
375
376
374
376
377
378
377
375
378
376
375
376
377
374
378
377
373
Long Beach
Torrance
LA Harbor
Paramount
LA International
Fontana
Huntington Beach
Eurbank
Poir.t Mugu
Rubidoux
Whittier
Downtown LA
Lakevood
East LA
Pasadena
Sopulvcda
Gler.dale
v.'atts
Oxnard
Santa Monica
Downey
El Monte
San Berr.ardino
Ar.aheim
Oxnr.rd AP Base
. Arcadia
Santa Ana
73.2
54.4
51.9
45. 4
42.2
37.4
22.9
20.9
18.3
13.8
11.3
11.2
9.6
7.6
7.2
7.1
7.0
5.6
5.5
4.5
4.1
4.1
3.7
3.7
3.6
3.6
3.1
44.8
36.7
29.1
35.8
32.9
24.8
11.0
9.3
8.4
37.8
9.2
7.8
7.8
5.8
3.1
8.4
2.1
3.6
3.6
2.6
2.0
4.0
2.2
2.3
3,4
2.5
1.1
63.4
35.0
30.4
34.8
35.4
128.3
16.8
12.2
14.5
32.9
9.0
7. '8
3.1
. 6.4
1 5.4
5.6
i 4.4
4.1
4.9
3.3
2.7
4.0
2.4
2.4
. 3.3
3.0
1.7
Edison, Alamitos; LA DWI? llaynes Sta.
Edison, Rcdondo Sta.; Mobil Refinery
LA DV7P Harbor Sta.; Texaco; Union
ARCO Refinery; Shell RerTinory
Edison, El S«t;urido; D'.-7P Sc,i -terycoa ;
Standard, Refinery
Edison, Etiw.incla Sta.; Kaiser Steel
Edison, Huntington Beach Station
LA DWT> Valley Sta.; Surbr.r-,.': Public Ec-rv.
Edison, Onr.ond Beach Station
American Cement; Cal Portland Cer.-.snt
Gulf Refinery; Powerina "of.; Ar-r:1.
Bethlehem Gtecl; Container Cor^-j. ; Ari.T. ;
Glass Container
Standard Oil Gas Puir.pino Sfation
Area; Anchor Hocking Class
Pasadena DWP; Area
So. Cal. Gas Pumping Station . ,
Glendale Public Service; Area
Latchforc Glass; Union Oil Pumping
Edison, Mar.cialay Station
Area; UCLA; Century Park
Douglas Refinery; Area
So. Cal. Gas Pumping Station
Edison, San Bernardino Station
Area
Continental Oil
Ball Glass; Area
Area (Res.)
482.9
342.1
382.2
-------
3ZO
Daily NOx Emissions, tons/day
o - 4.9 cm
5.0 - 19.9 1773
20.0 +
Distribution of the Sunnier Average Pally KOX Emissions (August 1974)
1n the South Coast Atr Bastn , !
-------
280
to
Daily NOx Emissions, tons/day
0 - 4.9 I1
5.0 -.19.9 . V77A
20.0 + . ESS3
Figure 6 Distribution of Winter Average Dally NOX Emissions (December 1974)
1n the South Coast A1r Basin
-------
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Figure 7 Distribution of Street Traffic by Grid Area
(thousands of vehicle miles per day)
[From Reference 2, pg. 11.13]
-------
59
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9)
19
Figure 8 Distribution of Freevay Traffic by Grid Area
.(thousands of vehicle miles per day)
[From Reference 2, pg. 11.13]
-------
APPENDIX A
Estimation of Diurnal Variation
of NO,, and Reactive Hydrocarbon Emissions from
Moving Sources in South Coast Basin
-------
Estimation of the Temporal Distribution of NCL and Reactive
Hydrocarbon Emissions From Moving Sources in the South Coast Basin
In order to evaluate the contributions of mobile and stationary sources
to repeated peak and highest annual one hour exposures of N02» a quantitative
investigation was initiated. Because the best air quality and emissions in-
ventory was available for the South Coast Air Basin, a three part study was
undertaken for th.is area.
Phase 1 - Using the temporal distribution of Daily Traffic and
Daily Electrical power demand, approximate the temporal
distribution of NC^ precursor emissions for the South
Coast Basin
Phase 2 - Analyze N0£ air quality data (one hour measurements)
for the South Coast Basin and determine the temporal
distribution of N02 concentrations.
Phase 3 - .Using standardized regression analysis attempt to
correlate the temporal distribution of N0£ precursor
emissions with the temporal distribution of air quality.
The remainder of this summary will focus on the estimation of the
temporal distribution of ^precursor emissions from mobile sources in the
South Coast Air Basin. Hourly NOX and RHC emissions inventories were not
available, therefore it was necessary to approximate the distribution of
emissions. .';'
An average daily NOX_RHC emissions inventory served.as the basts for
the estimation of hourly emissions. .The gross daily average NOX emissions , .
A-l
-------
are summarized in Table 1.
2 ' ' ""
The temporal distribution of daily freeway and arterial traffic
(heavy duty and light duty) served as the distribution function for
apportioning emissions. The temporal distributions for daily (averaged
for Tuesday, Wednesday and Thursday ) freeway and arterial traffic are
presented in Table 2 and illustrated in Figure 1. It was assumed that
the traffic distribution does not vary with month of the year; however Fig. 2
indicates that the magnitude of traffic will vary slightly (approximately
1%) with the month of the year.
The traffic distribution in Figure 1 .includes both heavy duty and
light duty vehicles. Since there is a drastic difference in NOx and
3
RHC emissions from heavy duty and light duty vehicles it was found neces-
sary to determine the traffic distributions for each of these vehicles
types. This latter estimation was facilitated by estimates of hourly truck
factors computed by the Department of Transportation. These hourly truck
factors were reported for a typical metropolitan area and are assumed to
be representative of the truck traffic situation in the South Coast Air
Basin.
In order to finalize the traffic distribution in the Los Angeles area .
it was also necessary to assume that in 1974 50% of the vehicle miles
traveled were on freeways and 50% were non-freeway. This latter assump-
tion is validated by the statistics reported in Table 3.
The final computed light duty and heavy duty traffic distribution
are presented in Tables 4 & 5 and illustrated in Figures 3 & 4. These
A-2
-------
traffic distributions are finally combined with the emissions inventories
in Table 1 to produce the temporal distribution-,of NOX and RHC emissions
, \
(Figures 5 and 6 and Tables 7 and 8);
Monthly gasoline consumption figures for California for the years
1968-72 are summarized in Figure 7 and Tables. 9 and 10.
A-3
-------
REFERENCES IN APPENDIX A
1. Trljonis, J.C., Peng, T.K., McRae, G.J., and Lees, L., "Emissions and
Air Quality Trends in the South Coast Air Basin, January 1976.
2. Wayne, L.G., Kokin, A., and Weisburd, M.I., "Controlled Evaluation of
the Reactive Environmental Simulation Model (REM)", EPA R4-73-013a,
Pacific Environmental Services, Inc., Feb. 1973.
3. Compilation of Air Pollutant Emission Factors - Supplement No. 5,
2nd Edition, USEPA, OAWM, OAQP.S, Dec. 1975.
4. Special Area Analysis, U. S. Dept. of Transportation, August 1973.
5. Transportation Control Strategy Development for the Metropolitan
Los Angeles Region, p. 98, EPA, OAWP, OAQPS, Dec. 1972.
6. Telephone Conversation with Andrew Rantieri (California Air Resources
Board)
A-4
-------
en
TABLE 1
N02 Precursor Emissions from Mobile Sources
in 1974 in South Coast Air Basin
Source NOg Precursor Emissions Tons/Day
Heavy Duty Vehicles NOX 250
Light Duty Vehicles NOX 740
Gasoline Heavy Duty Vehicles RHC 165
Diesel Heavy Duty Vehicles RHC 24
Light Duty Vehicles RHC 790
(Evaporative + Crank case + Exhaust)
-------
TABLE 2
Temporal Distribution of Daily Traffic
in South Coast Air Basin
Hour of % of Daily Freeway Traffic % of Daily Arterial Traffic
Day (LDV + HDV) (LDV + HDV)
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
0.82
0.82
0.82
0.82
0.82
1.93
6.06
7.84 :
6.62
5.45
5.04
5.04 .
5.04
5.04
5.81
7.64
7.64
7.64
4.79
3.11
3.11
3.11
3.11
1.88
0.78
0.78
0.78
0.78
V ' 0.78
0.78
2.61
6.78
6.78
5.23
5.23
6.26
6.26
6.26
6.26
6.26
8.54
8.54
5.59
3.16
3.16
3.16
3.16
2.07
A-6
-------
TABLE 3
VMT Projections for the South Coast Basin Area
106 Miles/Day 106 Miles/Day 106 Miles/D;
Year Freeway Non Freeway Total VMT
1967 56.694 69.253 125.947
1977 84.769 82.861 167.630
1980 93.192 86.943 180.135
-------
TABLE 4
Temporal Distribution of Heavy Duty Traffic
in the South Coast Air Basin
Time
Period
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
% of Total Non-Diesel % of Total Diesel % of Total Diesel
Trucks Trucks & Non-Diesel Trucks
(Freeway + Arterial) (Freeway + Arterial) (Freeway + Arterial)
1.3
2.1
3.4
3.4
3.5
4.0
6.1
5.4
5.9
5.8
5.4
5.8
5.4
5.4
5.4
5.8
5.2
4.4
3.5
2.2
2.4
2.5
3.5
2.2
0.2
0.5
0.5
0.2
0.9
1.4
3.4
7.1
9.7
9.1
8.1
8.0
7.2
7.8
7.9
8.3
6.8
5.0
2.9
1.6
1.1
. 1.5 '
0.4
' 0.4
1.0
1.6
2.4
2.3
2.6
3.2
5.2
6.0
7.1
6.9
6.3
6.6
6.0
6.2
6.2
6.6
5.7
4.6
3.3
2.0
2.0
2.2
2.4
1.6
A-8
-------
TABLE 5
Temporal Distribution of Light Duty
Traffic in South Coast Air Basin
% of Total Light Duty
Time PeripjJ Traffic
(Freeway and Arterial)
0-1 0.75
1-2 0.70
2-3 0.65
3-4 0.65
4-5 0.60 '
5-6 1.20
6-7 4.35 -
7-8 7.45
8-9 6.70
9-10 5.20
10-11 5.05
11-12 5.60
12-13 5.60
13-14 5.60
14-15 6.00
15-16 7.00
16-17 8.30
17-18 8.45
18-19 5.40
19-20 3.20
20-21 : 3.25
21-22 -.3.15
:22-23 3.15
23-24 2.00
A-9
-------
TABLE 6
Temporal Distribution of NOX Emissions from
LDV & HDV in South Coast Air Basin
(August - 1974) '
Time
Period
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
Total
LDV NOX
Emissions
Tons
5.6
5.2
4.8
4.8
4.4
8.9
32.2
55.1
49.6
38.5
37.4
41.4
41.4
41.4
44.4
51.8
61.5
62.6
40.0
23.6
24.0
23.3
23.3
14.8
740
HDV NOX
Emissions
Tons
2.5
4.0
6.0
5.8
6.5
8.0
13.0
15.0
17.8
17.2
15.8
16.5
15.0
15.5
15.5
16.5
14.2
11.5
8.2
5.0
5.0
5.5
6vO
4.0
250
Total NOX
Emissions
Tons
8.1
9.2
10.8
10.6
10.9
16.9
45.2
70.1
67.4
55.7
53.2
57.9
56.4
56.9
59.9
68.3
75.7
74.1
48.2
28.6
29.0
28.8
29.3
18.8
990
A-10
-------
TABLE 7
Temporal Distribution of RHC Emissions
from LDV & HDV in South Coast Air Basin
(August)
Time
Period
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
RHC
Emissions
from LDV
Tons
6.0
5.6
5.2
5.2
4.8
9.5
34.4
58.8
52.9
41.1
39.9
44.3
44.3
44.3
47.4
55.3
65.5
66.6
42.7
25.2
25.6
24.8
24.8
15.8
RHC
Emissions
from Diesel HDV
Tons
0.1
0.1
0.1
0.1
0.2
0.3
0.8
1.7
2.3
2.2
1.9
1.9
1.7
1.9
1.9
2.Q
1.5
1.2
0.7
0.4
0.3
0.4
._ o.r
0.1
;RHC Emissions
from Non-Diesel
HDV
Tons
0.3
0.8
0.8
o;3
1.5
2.3
5.6
11.7
16.1
15.0
13.4
13.2
11.9
12.9
13.0
13.7
11.2
8.2
4.8
2.6
1.8
. , T-^*1
i 2 5
! '3
1 o-7
0.7 '
Total
RHC
Tons
6.4
6.5
6.1
5.6
6.5
12.1
40.8
72.2
71.3
58.3
55.2
59.4
57.9
59.1
62.3
71.0
78.3
76.0
48.2
28.2
27.7
, 27.7
25.6
16.5
Total
790
24
165
979
A-ll
-------
u
(O
03
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ro
ptstrlbutiprrof: pally; Traffic; ; | :
in South Coas : Air
tO.02 7
1 , ' - ! »; 1 1 ' I
1 ; ; 'Daily Hours' ' :
10 11 12 13 14 15 16 17 18 19 20
21 22
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-------
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Figure 2
Annual Gasoline Consunip
te of California vs. Mon
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-------
! I Fig
I ' I ! '
Temporal Distribution1 of Heavy Duty
.Vehicles (HDV) in the South:Coast Air Basin
! : i : ! Daily
-]V 10
10"
sf--?:
-------
Distribution of Light
HDV) in South.Coast Air
-------
ure 5 - -i
Hourly NOX
Heavy :D'uty i\
st A1r Basi
;Duty;&
Emissions
ehiclesi i
Xffcttf
15 " 16 17 ' 10 x 19 ?.0 21 22 ' 23 "2^
-------
' Figure 6
Hourly Reactive Hydrocarbon
Light Djuty and Heavy Duty Vehicles '.\ri,
. South CoastfAir Basin ;
1 i ' i 1 '
f It-Iff
Daily Hours
11 "~\2 !'§""
-------
AVERAGE MONTHLY GASOLINE. .
CONSUMPTION FOR GIVEN YEAR
Figure 7 State of California - Monthly Gasoline Consumption
(1968 - 1972). I
Source: Division of Accounting, Controller of the
._ i
r- State of California. The Data are Based on. .. '
Revenues Collected from the 7£ Per Gallon"
- . Gas Tax. >
-60- ' ' V': :
A-18
-------
Table 9
State of CaliforniaMonthly Gasoline Consumption
t .
Year
1968
1969
1970
1971
1972
1973
Gasoline
Jan.
.080
735
.079
775
.074
810
.078
825
790
Feb.
' .082
740
.081
800
.082
835
.082
875
880
Mar.
.084
780
.076
750
.079
850
.077
820
870
Apr.
.077
715
.073
720
.075
770
.075
800
860
May
.084
775
.082
810
.085
870
.081
860
950
Consumption 10 Gallons , :
June
.083
770
.085
840
.084
860
.083
880
910
July
.077
710
.088
850
.084
860
.084
890
960
Aug.
.077
710
.084
830
.085
875
.087
925
985
.-t
Sept.
.092
845
.090
880
.090
920
.086
915
950
Oct.
.090
830
.088
860
.089
-910.
.087
920
Nov.
.086
790
.090
880
.086
880
.086
910
Dec.
.088
810
.083
820
.082
845
.094
985
Avg.
Monthly
770
820
855
885
M E A N D I S T R I ,B U T I 0 N
0.079 0.082 0.079 0.075 0.083 0.084 0.083 0.083 0.090 0.088 0.087 0.087
A-19
-------
Table 10
Comparison of August and December NOX Emissions if
for Seasonal Variation in Gas Purchases
Time Period
0-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-12
12-13
13-14
14-15
15-16
16-17
17-18
18-19
19-20
20-21
21-22
22-23
23-24
August Emissions
8.1
9.2
10.8
10.6
10.8
16.8
45.0
69.8
67.1
55.5
53.0
57.7
56.2
56.7
59.7
68.0
75.4
73.8
48.0
28.5
J28.3
28.7
29.2
18.7
December Emissions
8.4
Q C
J ,
-------
Appendix B
Diurnal Variation at
NO Emissions from
A
Electric Utilities in South Coast
Air Basin
-------
WORK SHEET SUMMARY
Re: South Coast Basin Load and NO data
>
Objective: To distribute NO power plant emission data on an hourly
J\
basis for the first full weeks in August and December 1974
using South Coast Basin load data distributions
Procedure: I. Aggregate load data for all systems serving the south
coast basin (the first full week of August and December
7 1974 on an hourly basis (midnight to midnight)) (Systems
load data for specified weeks, Form 12, FPC, pp. 26-27)
a) Blythe System-Southern California Edison Company
b) City of Pasadena, Water and Power Department
c) City of Burbank, Public Service Department
d) City of Glendale .
e) City of Los Angeles
Assumptions: (1) Demand reported on schedule 15 is in megawatts for al.l
systems except Glendale which reported in kilowatts.
(2) Adjustments were not made at this time for imported
and/or exported denand. Satisfactory estimates could
not be determined. (One form of this data exists
as schedules 8 of FPC Form 12, pp. 19-21)
(3) April 1974 was not included in the forgoing analysis.
Comparable NOY data was not available.
II. Estimate corresponding August and December NO data based on
/\
, daily averages for all south coast basin systems (utility NO
' emissions summaries for 7/72 - 6/73, KV3. -
B-l
-------
Assumptions: (1) Total monthly demand was weighted by the occurrence
of a particular day in the month.
(2) 1974 average NO emissions 'in August and December were
*» '
obtained by linearly interpolating between 1972 data
and 1974 projections.
III. Distribute NO data on an hourly basis for the first full weeks
/\
in August and December 1974 using aggregated demand schedules.
Assumption: (1) f!0 emissions are directly proportional to energy output.
/\
B-2
-------
Computation of Energy Production in South Coast
Air Basin in 1974
Plant
.Alanritus
Coolwater
El Segundo
Etiuanda
Highgrove
Mandaray
Redunno
San Beunardino
Magnolia
Glendole
Hanbor
Haynes
Scattergood
Valley
Broadway
Glenaum
Ormand Beach
Summary of Energy Input
1012 BTU Input
from Gas
131 .042
12
Total Heat Input = 433.851 x 10lt~ BTU
1012 BTU Input
from Oil
8.879
10.827
11.935
9.934
.185
4.442
26.962
4.847
2.184
1.756
1.055
11.009
9.100
11.925
1.921
0.101
2.537
61.288
0.3 0.310
27.906
26.793
. 0.169
11.227
20.516
2.101
4.336
3.213
4.987
62.187
6.802
4. 583
4.555
0.277
37.602
302.809
Energy Output = 433.855 x 10
12 *
KW-Hr
10,000 Btu
= 433.851 x 108 KW-Hrs
B-3
-------
Average Daily NOx Emissions in August and December
From Power Plants in the South Coast Basin
CO
I
Plant
Alamitos
El Segundo
Etiwanda .
Highgrove
Huntington Beach
Ormond Beach
Mandalay
Redondo
San Bernardino
Harbor
Haynes
Valley
Scattergood
Magnolia...- ^ .:.!.
Oliver
Glendale (Grays on)
Broadway
61 en arm
August
Emissions
1972
Tons/Day
21.49 '
7.12
9.09
0.32
10.64
8.31
3.38
15.56
1.69
0.97
22.66
7.03
2.13
0.21.. .... j_
1.16
0.74
1.92
0,01
iTT4..1F3
December
Emissions
1972
Tons/Day
32.31
13.23
18.71
0.15
22.22
18.16
. 4.83
25.96
2.59
7.55
39.24
16.51
3.53
OA__ 1-33-:
1.24
3.49
4.18
-
...215.23
Projected
August
Emissions
1975
Tons/ Day
33.29
9.74
17.79
0.36
22.09
31.20
5.93
26.7,3
2.96
27.96
10.16
5.20
__. . 0.26__ ...
1.96
3.06
3.95
0.06
?n?.70_,
Projected
December
Emissions
1975
Tons/ Day
27.87
13.23
18.71
0.15
22.22
37.89
4.83
25.13
2.59
28.85
11.69
5.40
1.20 .
i
1.50
3.45
4.70
-
2U9'-:TT
Estimated
1974
August
Emissions
Tons/Day
29.36
8.87
14.89
0.35
18.27
23.57
5.08
23.01
2.54
0.65
26.19
9.12
4.18
0.24. ___
1.69
2.29
3.27
_Q.Q4
173.61
Estimated
1974
December
Emissions
Tons/Day
29.35
13.23
18.71
0.15
22.22
31.31
4.83
25.40
2.59
5.03-
32.31
13.30
4.78
1.24, _.,.
1.41
3.46
4.53
_
- 2U.8b
-------
.Temporal Distribution of Power Demand and
Emissions for Utilities in the South.Coast Air Basin
August 1974
CO
i
en
Time
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
*
Sunday
MM
17756
16727
15837 .
15284
14970
14752
14835
17083
20515'
22640
24597
27307
28347
28835
29705
29824
30008
28592
27439
26704
26847
25300
23581
21166
549151
Tons of
4.75
4.48
4.24
4.09
4.00
3.95
. 3.97
4.57
5.49
6.06
6.59
7.31
7.59
7.72
7.95
7.98
8.03
7.65
7.35
7.15
7.19
6.91
6.31
5.67
147.02
» Monday
MW -
19819
18681
17710
16891
' 16395
16893
17556
21027
25598
2808G
30475
32388
33861
35616
36506
36955
35988
36723
34630
32871
32133
' 30305
27000
25066
659172^
Tons 'of
NOX
5.31
5.00
4.74
4.52
4.39
4.52
4.70
5.63
6.85
7.52
8.16
8.67
v 9.07
9.54
: 9.77
9.89
9.64
9.83
9.27
8.80
8.60
\8.11
7.23
6.71
176.48
^Tuesday
MW
22995
21841
21698
20974
20969
, 20844
21372
24548
28416
31792
' 34003
35821
36853
37778
38239
. 38346
37971
37105
36983
33864
34231
31753
29349
26531
724276
Tons of
NOX
6.16
5.85
5.81
5.62
5.61
5.58
5.72
' 6.57
7.61
8.51
9.10
9.59
9.87
10.11
10.24
10.27
10.17
. ...9.93
9.90
9.07
9.16
8.50
7.86
7.10
193.91
Wednesday
MW
24703
23151
22042
21005 .
20210
19984
20817
23491
27343 '
30194
32174'
34581
35897 '
. 37009
37585
37487
38305
36233
34415
32990
31951
29767
26764
24490
702588
Tons of
NOX
6.61
6.20
5.90
5.62
5.41
5.35
5.57
6.29
7.32
8.03
8.61
9.26
9.61
9.91
10.06
' 10.04
10.26
9.70
9.21
8.83
8.55
7.97
7.17
6.56
188.10
Thursday
MW
21877
20330
19628
18776
17684
18679
18247
21304
25527
28213
30621
32425
33921
35738
36164
36266
36526
35445
33414
31834
31051
28526
24952
22587
659735
Tons of
NOX
5.86
5.44
5.25
5.03
4.73
5.00
4.89
. 5.70
6.83
7.55
8.20
8.68
9.08
. 9.57
9.68
9.71
9.78
9.49
8.95
. 8.52
8.31
7.64
6.68
6.05
176.63
Friday
' MW
21393
19949
18886
18134
17742
17538
19573
20838
24607
28333
29912
31825
32640
34083
34920
35417
34741
33499
33248
30989
29613
27305
24996
22745
64297T
Tons of
NOX
5.73
5.34
5.06
4.85
4.75'
4.70
5.25
5.58
6.59
7.60
8.01
8.52
8.74
' -9.12
. 9.35
9.48
9.30
8.97
8.90
. 8.30'
7.93
7.31
6.69
6.09
~~ ' 172.14
Saturday
MW
21429
20100
19009
1S365
17653.
17675
17520
. 19730
2291 5
25680
27975
29325
31267
. 31807
32820
32627
32523
32305
31128
29210
27665
25915
23463
21501
609607
Tons of
"Ox
5.74
5.38
5.09
4.92
4.73
' 4.73
4.69
5.23
6.14
6.88
7.49
' 7.85
8.37
8.52
8.79
8.74
8.71
8.65
8.33
7.32
7.41
6.94
6.28
5.76
163.21
III-
Total Megawatts-for 1st week of August = 4,547,505
Total Tons of NOX for 1st week of August = 1,217.49
-------
Temporal Distribution of Power Demand and
NOX Emissions for Utilities 1n-the South Coast Air Basin
December 1974
Sunday
Monday
Tuesday
Wednesday
Thursday
Fridav
Saturday
CO
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
11-1.2
MM
11701
10916
10554
10609
1C904
11616
12714
15574
15690'
15981
15546
14574
14872 '
14465
13864
13479
14877
16930
17175
16721
16448
14637
12773
11691
3343)1
Total
Total
Tons of
, "Ox
6.70
6.25 .
. 6.04
: 6.08
6.24
. 6.65
7.28
8.92
8.98
9.15
8.90
8.35
8.52
8.28
7.94
7.72
8.52
9.70
9.84
9.58
9.42
8.38
7.31
6.70
1S1.45, '
Megawatts
HW
11173
11007
11075
11364
11901
13359
-1 5952
18305
21139
204'43
20087
19953
19364
19826
19815
20166
21681
23353
23043
22950
21380
18566
16281
14551
426671
if- '
Tons of
NOX
6.40
6.30
6.34
6.51
6.82
7.65
-9.14
10.48
12.10
11.71
11.50
11.43
11.09
11.35
11.35
11.55
12.42
13.37
13.20
13.14
12.24
10.63
9.29
8.33
244.34
m
13736
13023
12772
12642
13554
14592
t6773
19923
19678
19299
20256
20039
19862
19787
19858
19514
20460
22525
22378
21550
20080
17482
15745
14181
429714
for 1st week of December =
Tons of HOX for
1st week of
December
Tons of
NOX
7.87^-
7.46
7.31
7.24
7.76
8.35-
9.60-
11.41
11.27*
11.05' .
11.60
11.48-.
11 .37 v
11.33 -/
11 .37
11.17-'
11.72'',
12.90-/
12.81 '
12.34 '
- 11.50
10.01
9.02 '
8.12
246.08
2,596,367
= 1.486.86
MM
13076
12164
12000 .
11976
12800
14310
16278
19526
19480
18914
18662
17749 '
17150
17353
17033
16298
16892
17969
17721
16664
15745
14509-.
12872
11573
378714
Tons of
7.49
6.97
6.87
6.86
7.33
8.19
9.32
11.18
11.16
10.83
' 10.69
10.16
9.82
9.94
9.75
. 9.33
9.67
10.29
10.15
9.54
9.02
8.31
7.37
6.63
216.88
MW
10654
10436
10172
10154
10573
12742
15820
12736
16275
15871
" 15407
14690
13983
'14638
14373
14227
14934
17423
17713
17002
16253
14776
13049
11786
335742
Tons of
HOX
6.10
5.93
5.82
5.81
6.06
7.30
9.05
7.29
9.32
9.09
8.82
8.41
8.01
8. 41
. 8.23
8.15
8.55
9.98
10.14
9.74
9.31
8.46
7.47
6.75
192.27
f-W
10930
10761
10594
10655
. 11031
12104
14148
15695
1 5863
15578
15623
15607
15820
16248
16392
16505
17085
18867
17880
17713
16651
15302
13783
12273
353208
Tons of MVf
5.29
6.16
6.07
6.10
6.34
5.93
8.10
8.99
9.08
8.92
8.95
8.94
9.06
9.30
' 9.39
9.45
9.78
10.80
10.24
10.14
9.54
8.76
7.89
7.03
202.27
1 1 381
10942
10364
10823
11115
12240
14006
15369
15655
15970
15926
15722
14786
14640
- 14715
14709
15455
17289
16936
16166 .
15072
' 13855
12575
11796
338007
Tens of
'JO
6.52
6.27
6.22
6.20
6.36
7.01
8.02
8.20
8.S6
9.14
9.12
9.00
8.47
8.33
8.43
8.42
8.85
9.90
9.70
9.26
8.63
7.93
7.20
6.76
193.57
i,..
-------
SUMMARY OF ENERGY IMPORTED AND EXPORTED,FOR THE SOUTH COAST
AIR BASIN FOR THE YEAR ENDED DECEMBER 31, 1974
Utility Amount of Amount of" .
Company Energy Imported Energy Exported
KW Hrs KW Mrs
City of Pasadena
Water & Power Dept.
Southern California 148,502,300 4,638,000
Edison 1,112,500
City of Los Angeles 61,740,000 -544,180,000
50,000 218,000,000
569,385,000 73,251,000
8,116,723,000 153,025,000
905,771,200 1,002,691,400
74,047,400 58,370,000
74,047,400
City of Burbank -
City of Glendale - -
Total 9,876,218,900 2,129,315,400
Net amount of = 7,746,903,500 KW-Hrs
Imported Energy
Energy Production = 43,385,000,000 KW-Hrs
in Basin
B-7
-------
c
1 Distribution of NOx Emissions
metrical Utilities in the South
;August 1974
-
-
:
. '
.
;
.
i
1 -^
>
-------
I
Temporal Distribution of NOx Emissions
From Electrical Utilities
in South Coast Basin
i . . i
)
For December 1974
DAILY HOUR
ir i/- IT in i .-> ->-.
- .
-------
Determination of Hourly Weekday
Average NOx Emissions
(August 1974)
Daily Hr.
12-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-7
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
Avg NOx
Tons
Mon-Fri
5.93
5.57
5.35
5.13
4.98
5.03
5.23
5.95
7.04
7.85
8.42
8.94
9.27
9.65
9.82
9.88
9.83
9.58
9.25
8.70
8.51
7.91
7.13
6.50
Range
Mon-Fri
5.31- 6.61
5.0 - 6.2
4.74- 5.90
4.52- 5.62
4.39-5.61
4.52- 5.58
4.70- 5.72
5.58- 6.57
6.59- 7.61
7.55- 8.51
8.01- 9.10
8.52- 9.59
8.74- 9.87
9.12-10.11
9.35-10.24
9.48-10.27
9.30-10.26
8.97- 9.93
8.90- 9.90
8.30- 9.07
7.93- 9.16
7.21- 8.50
6.68- 7.86
6.05- 7.10
Avg NOx
Tons
Tues-Thurs
6.21
5.83
5.65
5.42
5.25
5.31
5.39
6.19
7. -25
8.04
8.64
9.18
9.52 - ".
9.86
9.99
10.01
10.07
9.71
9.35
8.81
8.67
8.04
7.24
6.57
Range
Tues-Thurs
5.86- 6.61
5.44-6.20
5.25- 5.90
5.03- 5.62
4.73- 5.61
5.0 - 5.58
4.89- 5.7:2
5. 70- .6. 57
6.03- 7.61
7.55- 8.51
8.20- 9.10
8.68- 9.59
9.08- 9.87
9.57-10.11
9.68-10.24
9.71-10.27
9.78-10.26
9.49- 9.93
8.45- 9.90
8.52- 9.07
8.31- 9.16
7.64- 8.50
6.68- 7.86
6.05- 7.10
B-10
-------
*,
Temporal Distribution of NOx Emissions
for Utilities in South Coast Air Basin
in December
NOx Tons/Hr.
Time
of
Day
12-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
^-10
-lT
11-12
12-1
1-2
2-3
3-4
4-5
5-6
6-7
7-8
8-9
9-10
10-11
11-121
Weekly
Avg.
6.77
6.48
6.38
6.40
6.70
7.44
8.64
9.58
10.12
9.98
9.94
9.68
9.48
9.57
9.49
9.40
9.93
10.99
10.87
10.53
9.95
8.92
7.94
7.19
Weekly
Range
6.10-7.87
5.98-7.46
5.82-7.31
5.81-7.24
6.06-7.76
6.65-8.36
7.28-9.60
7.29-11.41
8.96-12.10
8.92-11.71
8.82-11.6
8.35-11.48
8.01-11.37
8.28-11.35
7.94-11.37
7.72-11.55
8.52-12.42
9.7-13.37
9.70-13.20 .
9.26-13.14
8.63-12.24
7.93-10.63
7.20-9.29
6.63-8.33
Weekday
Avg .
6.83
6.57
6.48
6.50
6.86
7.69
9.04
9.87
10.59
10.32
10.31
10.08
9.87
10.07
10.02
9.93
10.43
11.47
11.31
10.98
10.32
9.23
8.21
7.37
Weekday Tues.Wed,
Range Thurs Avg,
6.10-7.87
5.98-7.46
5.82-7.31
5.81-7.24
6.06-7.76
6.93=8.36
8.10-9.60 .
7.29-11.41
9.08-12.10
8.92-11.71
8.82-11.6
8.41-11.48
8.01-11.37
8.41-11.35
8.23-11.37
8.15-11.55
8.55-12.42
9.98-13.37
10.14-13.2
9.54-13.1
9.02-12.24
8.31^10.63
7.27-9.29
6.63-8.33
7.15
6.80
6.67
6.64
7.05
7.95
9.32
9.96
10.58
.10.32
10.37
10.02
9.73
9.89
9.78
9.55
9.98
11.06
11.03
10.54
9.94
8.93
7.95
7.17
Tues,Wed
Thurs.
Range
6.10-7.87
5.98-7.46
5.82-7.31
5.81-7.24
6.06-7.76
7.30-8.36
9.05-9.60
7.29-11.41
9.32-11.27
9.09-11.05
8.82-11.60
8.41-11.48
8.01-11.37
8.41-11.33
9.75-11.33
8.15-11.17
. 8.55-11.72
9.98-12.90
10.14-12.81
9.54-12.34
9.02-11.5
8.31-10.01
7.37-9.02
6.!63-8.12
B-ll
-------
8 10 12 14 16 18 20 22
Hr. of the day
OJ, or;* or. w
-------
Appendix C
Diurnal Variation of NOX Emissions from Other
Stationary Sources in South Coast Air Basin
-------
Under the general category of other stationary sources three subcategories
were defined:
1. Refineries
2. Small and Major Industries ;
3. Domestic/Commercial/Institutional Sources
Bartz developed the following NOX emissions inventory for refineries for
the months of August and December of 1974 (assuming no increase for the period
1972-74).
NOX Emissions NOX Emissions
Refinery August, 1974 December, 1974
Name Tons/Day Tons/Day
Arco 22.1 26.4
Gulf 2.4 3.2
Mobile 14.3 21.5
Powerine 1.9 2.6
Shell 9.3 12.7
Standard 21.3 22.6
Texaco 10.4 19.9
Union 10.6 16.4
Miscellaneous 9.3 10.3
TOTAL 101.6 135.6
To approximate the diurnal variation of emissions from these sources it
was assumed that the refineries operate 24 hrs/day7days/week and that their
production schedules are "fairly uniform tfain'Tg a particular month. Therefore,
hourly NOX emissions from refineries during the month of August and December
are 4.2 and 5.6 tons/hour, respectively.
The small and major industrial categories included:
1. Primary and Secondary Metal Smelters .;.
2. Cement Production Kilns
3. Industrial Boilers
4. Glass Production
C-l
-------
5. Internal Combustion Engines
6. Ceramic Kilns
7. Asphalt Dryers .._ ... -
8. Small Industrial Heaters and Dryers
The daily NOX emissions for each of these categories during the months of
August and December are now summarized. The present increase in emissions for
the period 1972-74 has also been included.
% Increase Daily NOX Emissions Daily NOX Emissions
in NOX Emissions August - December.
Category 1972-1974 Tons/Day Tons/Day
Primary & Secondary
Smelters 0% 19.6 19.3
Cement Kilns 0% .37.4 13.1
Industrial Boilers 32% 15.1 25.4
Glass Production . 0% 12.7 10.8
Internal Combustion 0% 51.5 45.1
Engines
Ceramic Kilns 0% 2.0 1.5
Asphalt Dryers 0% 0.6 1.1
Small Industrial 1% 7.7 12.0
Heaters & Dryers
TOTAL 146.6 128.3
To approximate the diurnal variations of emissions from these sources it was
assumed that these industries operate 24 hrs/day--7 days/week and that their
production schedules are fairly uniform during a given month.
Therefore, hourly NOY emissions from small and major industrial sources
J\ _ .
during the months of August and December are 6.1 and 5.3 tons/hr, respectively.
C-2
-------
Commercial, domestic ind institutional NOV point sources include small
X
boilers and small heaters and dryers. The inventories from these sources
for the months of August and December are summarized below:
NOX Emissions NOx Emissions
August, 1974 December, 1974
Tons/Day Tons/Day
Small Commercial/Institutional Boilers 6.4 12.3
Small Commercial Heaters & Dryers 5.9 13.4
Small Domestic Heaters & Dryers 18.3 61.8
TOTAL 30.6 87.5
Emissions from small commercial/institutional/domestic sources were not
assumed to be distributed uniformly over a given day. Instead, emissions were
assumed to be distributed in a manner which was directly proportional to the
absolute difference in temperature between the desired indoor temperature
(66°F during the period 11:00 p.m. thru 6:00 a.m. and 72°F during the period
6:00 a.m. thru 11:00 p.m.) and the ambient temperature.
Ambient temperature measurements were extracted from the Social Climatolo-
gical Data measurements at Los Angeles International Airport. The diurnal
variations of ambient temperatures for the month of August was obtained by
averaging temperature readings for the period August 14-18, 1974. The diurnal
variation of ambient temperatures for the month of December was obtained by
averaging temperatures for the period December 16-22, 1974.
r The results of the above calculations are summarized in the table
below: . v
C-3
-------
Diurnal Distribution of NOx Emissions from
Commercial/Domestic/Institutional Sources (August)
Time of Day (PST)
12
1
4
7
10
13
16
19
22
24
Avg.
Imp. -°F
64.4
64.2
63.6
64.6
71.0
73.2
72.0
66.6
65.2
64.4
Desired Temp. -°F
' 66
66
66
72:
72
72
72
72
72
66
NOV Emissions/Tons
0.7
2.7
6.4
5.5
1.4
0.8
3.5
7.8
1.8
Diurnal Distribution of NOX Emissions from
Commercial/Domestic/Institutional Sources December)
Time of Day (PST)
12
1
4
7
10
13
16
19
22
24
Avg.
Temp. *°F
54.9
54.0
50.2
49.8
64.6
70.0
62.4
58.2
56.6
54.9
Desired Temp. -°F
66
66
66
72
72
72
72
72
72
66
NOx Emissions/Tons
3.3
11.5
15.7
13.5
5.9
6.0
10.6
13.2
7.9
C-4
-------
Appendix D
N02 Air Quality in
South Coast Air Basin
During August 12-18, 1974
-------
Anaheim
August Episode
Time
MID
1
2
3-
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
y '
8
9
10
11
Aug. 12
38
19
19
19
-
19
38
56
113
113
94
113 -
94
94
132
169
169 \
169
169
169
113,
113
113
94
Aug 13
75
56
38
38
-
113
113
113
113
94
75
94
94
94
113
113
113
113
132
113
,113
94
113
94
Aug 14
75
56
38
38
-
38
38
38
56
56
113
75
75
94
94
132
150
132
150
150
'.::;rT32
132
132
132
Aug 15
113
113
113
94
-
75
94
.113
132
132
94
113
113
94
113
132
' 150 ;
169 '
169
,150
.150.,
" 132
132
132
Aug- 16
132' '
132
132
132-
-
132
132
150
.. 207
226
188
169
150
132
113
150
188
226
22-6
226
188
150
150
132
Aug 17
132
132
132
113
-
113
113
140
226
207
207
188
113
113
94
113
132
169
169
150
132
132
132
113
Aug 18
-,. 113
1.13 .
75
38
-
19
19
38
56
75
56
75
56
56
75
94
94
113
113
113
94
' 94
75
56
D-l
-------
Burbank
August Episode
Time
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
(
8
9
10
11
Mon.
Aug. 12
38
.38
38
38
38
75
75
75
94
150
150
169
150
113
113
113
113
113
113
75
75
56
56
38
Tues.
Aug 13
38
38
38
38
38
75
94
113
113
113
113 .
113
-
75
75
94
94
94
113
113
113
113
113
94
Ned.
Aug 14
56
38
38
38
38
75
75
113
113
113
150
-
113
113
113
113
113
169
188
169
150
150
132
113
Thurs.
. Aug 15
113
113
113
75
113
113
113
150
159
207
188
188
113
94
113
113
169
150
150
188
150
150
132
132
Fri .
Aug 16
132
132
113
94
75
113
132
263
244
301
226
226
-
150
150
113
113
188
188
*188
150
150
150
132
Sat.
Aug 17
132
132
150
132
113
113
169
282
320
301
244
188
150
113
75
94
113
132
169
188
169
150
169
150
Sun.
Aug 18
150
150
150
132
150
132
169
207
263
263
188
150
75
94
94
94
113
113
150
244
263
188
207
207
D-2
-------
Lennox
August Episode
Time
MID
V
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
>.
, 9
10
11
Aug 12
56
:-..-,:-;-.--38:-,:
38 .
56
94
56
150
132
94
94
113
94
75
75
75
113
94
94
56
56
38
94
75
75
Aug 13
56
- ..: . 56
56
38
75
113
94
113
94
75
-
56
38
38
38
56
5&
38
19
19
19
38
38
56
Aug 14
56
75
75
75
94
113
113
113
113
132
132
132
113
75
75
56
38
38
19
19
38
56
75
94
Aug 15'-
' 56
38
38
38
56-
94
113
113
113
113
132
132
94
94
75
75
. 56
19
19
38
19
- 56
56 .
75
Aug 16
75
75
56
75
113
113
113
132
i
113
-
169
150
150
113
113
169
113
75
56 ..
56
94
94
94
113
Aug 17
113
94
94
113
113
113
113
132
113
150
150
132
113
113
94
75
56
56
56
38
38
56
56
75
Aug 18
94
75
56
56
94
94
113
113
94
113
113
75
113
113
132
75
56
75
113
-
75
-
-
-
D-3
-------
Long Beach
August Episode
Time
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
>,S
9
10
11
Aug 12
56
56
38
38
56
132
169
169
169
169
169
169
100
132
132
132
.
- .
-
. -
-
' -
-
_
Aug 13
-
-
-
-
-
-
-
-
113
169
207
188
169
113
56
38
38
38
38
38
38
56
56
Aug 14
38
38
38
56
75
75
56
56
56
94
113
132
113
113
94
94
94
75
56
.
56
56
56
56
Aug 15
56
38
38
38
19-
56
75
75
94
-
169
132
132
132
113
94
75
94
75
94
94
94
94
94
Aug 16
75
56
75
75
94
94
113
132
-
263
207.
188
150
132
132
132
132
132
132
' ' 113
94 '
94
113
113
Aug 17
113
113
94
94
94
75
150
150
244
226
244
169
150
150
132
113
94
132
113
94
'94
94
113
113
Aug 18
113
94
-113
75
94
56
75
75
94
94
94
113
94
113
113
132
132
132
132
113
113
113
94
56
D-4
-------
Los Angeles
434 S. San Pedro
August Episode
Time
MID
1
2
3
4
5
6
7
8
9
TO
11
Noon
1
2
3
4
5
6
7
' 8
9
10
11
Aug 12
94
113
94
94
113
113
169
169
169
169
207
188
150
-
75
75
75
56
28
38
19
19
. 19
Aug 13
-
-
-
-
-
-
-
113
113
132
-
-
75
75
75
94
75
56
56
38
38
19
19
19
Aug 14
19
19
38
19
38
75
113
132
132
169
-
113
113
113
75
94
94
75
75 '
75
75
56
56
56
Aug 15
56
38 .
56
56
75
113
150
150
226
226
-
113
75
75
75
113
73
56 .
56 .
38
38
56
38
56
Aug 16
56
; 56
56
38
75
113
150
169
188
188
-
-
75
94
113
150
150
113
113 '
113
113
113
113
113
Aug 17
113
113
132
113
132
132
169
244
301
226
-
132
94
56
56
56
75
75
94
113
113
113
113
113
Aug 18
113
113
113
94
94
94
94
113
113
94
-
56
75
75
38
30
38
56
75
113
113
113
113
75
D-5
-------
Los Angeles
2351 Westwood Blvd
August Episode
Time
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Aug 12
38
38
38
38
38
38
113
132
113
113
-
-
-
-
-
75
75
75
75
75
56 .
38
38
38
Aug 13
38
38
38
38
38
75
94
75
-
-
-
-
-
-
-
38
38
56
56
75
75
75
75
56
Aug 14
38
19
19
19
38
'56
94
113
132
-
75
75
75
75
75
56
38
38
56
75
75
38
38
38
Aug 15
19
19
19
19
19
38
75
94 .
150
-
94
113
94
75
56
75
75
75
94
113
75
56
56
38
Aug 16
56
113
150
113
113
113
150
113
-
-
75
75
74
56
56
75
75
75
75
75
113
150
132
132
Aug 17
113 '" .
113
94
94
94
94
132
113
150
150
113
113
94
75
75
56
56
56
56
75
- 75
94
113
113
Aug 18
113
V13
113
113
94
'. 113
1-13
164
226
-
132
113
75
75
75
56
56
56
75
75
56
56
132
113
D-6
-------
Lynwood
' 11220 Long Beach Blvd.
August Episode
i
Time Aug. 12 Aug. 13 Aug. 14 Aug. 15 Aug. 16 Aug. 17 Aug. 18
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
38
38
38
38
38
38
38
75
-
113
113
113
94
75
56
56
56
38
38
19
19
38
38
19
19
19
19
19
38
56
94
94
-
56
56
75
-
38
19
38
56
56
56
56
38
38
19
19
19
19
19
19
19
38
56
56
-
75
94
94
94
94
75
56
75
75
38
38
38
38
38
38
38'
19
19
19
19
38
56
75
75
*
113
i
94
132
132
113
94
113
132
113
94
75
56
75
75
75
94
113
94
94
94
113
132
132
169
207
"
169
94
94
132
150
188
226
188
150
132
94
113
132
132
132
132
132
132
132
150
169
169
-
244
226
132
132
113 .
113
132
188
150
150
132
132
132
132
150
150
150
150
132
132
132
94
75
-
56
113
132
132
132
113
94
132
150
150
226
188
169
150
D-7
-------
August Episode
N02
Pasadena - 1196 E. Walnut St
Time
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
.5
6
7
' V
8
9
10
11
Aug. 12
38
38
38
19
19
19
38
56
75
94
113
113
132
150
113
94
113
113
113
94
.:. 75
75
75
56
Aug. 13
38
19
19
19
19
19
56
94
75
94
75
113
'
75
94
75
113
94
113
113
113
132
113
94
Aug. 14
113
94
94
94
94
94
113
113
113
113
113
-
-
75
94
75
94
113
132
113
113
132
132
113
Aug. 15
113
113
113
94
75
75
113
132
150
113
113
94
132
94
94
94
113
113
, 150 .
169
: ..188
188
169
169
Aug. 16
150
132
132
113
113
11-3
188
"226
244
207
357
263
-
-
113
113
113
132
169
226
:226
188
188
226
Aug. 17
188
188
169
132
113
132
169
132
132
150
207
282
169
132
132
113
94
94
132
207
. 226
226
207
226
Aug. 18
188
188
169
150
132
132
188
226
188
113
94
75
75
56
75
75
75
94
113
169
226
244
169
150
D-8
-------
August N02 Episode
Pomona - 924 N. Garey Ave.
Time
MID
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
V
8
9
10
11
Aug. 12
38
38
19
19
38
38
56
25
94
113
' ' 113
94
-
132
132
152
113
94
113
94
56
56
56
38
Aug. 13
!9
19
19
19
19
38
56
75
94
113
113
132
-
113
113
113
132
132
150
150
132
113
113
113
Aug. 14
113
94
94
75
56
56
56
56
94
113
113
132
-
113
132
132
113
113
150
150
169
169
150
132
Aug. 15
132
132
113
113
113
113
113
132
. 169
169
188
132
-
132
113
113
113
150
188
226
'188
188
169
150
Aug. 16
132
132
132
132
132
132
150
-205
263
263
226
207
-
150
132
150
169
150
188
226
263
244
226
188
Aug. 17
188
109
150
132
132
132
169
226
226
226
169
132
M
132
94
94
94
132
150
169
169
169
188
188
Aug. 18
169
' 150
169
150
132
132
150
188
207
226
226
132
56
56
75
75
113
132
132
150
i
132
113 '
94
D-9
-------
August N02 Episode
Upland
1350 San Bernardino \
Time
MID
1
2
3.
4
5
6
7 7
8
9
10
11
Noon
1
2
3
4
5
6
t
1,
7
8
9
10
11
Aug. 12.
-
38
38
38
38
38
38
38
50
38
56
56
38
19
38
38
38
56
75
75
56
38
38
_
Aug. 13
-
69
19
19
19
19
19
19
19
38
38
19
19
19
19
38
38
56
75
94
113
94
94
_
Aug. 14
-
56
75
56
56
75
56
56
56
56
75
56
38
19
19
38
38
56
75
94 '.
94
113
113
Aug. 15
-
75
75
56
56
94
.94
94.
113
132
94
75
38
38
19
38
38
56
94
113
132
152
132
Aug. 16
-
94
75
75
94
94
113
207
207
-
-
113
75
56
38
38
56
75
94
132
- .
188
207
169
AugV-17
-
113
113
113
94
94
113
150
132
132
94
94
56
38
38
38
38
56
94
94.
. > *
132
150
132
Aug. li
-.'
75
56'
75
75
.. 75
94
132
207
169
94
75
75
38
19
19
38
75
132
150
. «' * ;-.
150.
150
150
D-10
-------
o
: '
f''"'\t> WN BERNARDINO
MOUNTAINS
SAN GABRIEL MOUNTAINS
PASADENA.^
6 FONTANA
SAN BERNARDINO
REDLANDS
17* POMONA
4»CHINO
j?<***ttZ^f£Z?g$;tx~
^«-"i*vV* , . <) v4****f*XM* 4>J* *
^C3»
6*oSTAMESA
the 24 LAAPCO and California itate litei In the Los Angeles Basin.
-------
Location of NCL Monitoring Sites
(Refer to Map)
Items Location
1 1010 S. Harbor Blvd. (Anaheim)
2 803 Loren Ave. (Azusa)
/'
3 228 W. Palm (Burbank)
4 Central & Riverside (Chino)
5 2631 Harbor Blvd. (Costa Mesa)
6.'.. " 14838 Foothill .Blvd. (Fontana)
7 621 W. Lambert (La Habra)
8 11408 La Crenega Blvd. (Lennox)
9 3648 N. Long Beach Blvd. (Long Beach)
10 . 434 S. San Pedro St. (Los Angeles)
11 2351 Westwood Blvd. (Los Angeles)
12 18330 Gault St. (Reseda)
13 11220 Long Beach Blvd. (Lynwood)
14 24811 San Fernando Rd. (Newhall)
15 8850 Archibald Ave. (Norco)
16 1196 E. Walnut St. (Pasadenaj
17 924 H. Garey five. (Pomona)
18 216 Brookside Ave. (Redlands)
19 . 7002 Magnolia Ave. (Riverside)
20 5888 Mission Blvd. (Rubidoux)
i
21 Hall of Records, 172 W. 3rd St. (San Bernandino)
22 .... 155 D. St. (Upland) '
23 1350 San Bernandino Rd. (Upland) '
24 14427 Ceffinguell Road (Whittier)
D-12
-------
Appendix E
Air Quality in South Coast Air Basin
During the Period December 18-22
-------
Location of NCL Monitoring Sites
(Refer to Map) .
Site No. Location
1 1010'S. Harbor Blvd". (AnaHeim) ...
2 803 Loren Ave. (Afusa)
3 228 U. Palm (Burbank)
4 Central & Riverside (Chiro)
5 2631 Harbor Blvd (Costa Mesa)
6 . 14838 Foothill Blvd (Fontana)
7 621 W. Lambert (La Habra)
8 11408 La Crenega Blvd. (Lennox)
9 3648 N. Long Beach Blvd, (Long Beach)
. *
10 434 S. San Pedro St. (Los Angeles)
11 2351 Westwood Blvd, (Los Angeles)
12 18330 Gault St. (Jteseda)
13 11220 Long Beach Blvd. (Lynwood)
14 24811 San Fernando Rd. (New Hall)
15 8850 Archibald Ave, (Norco)
16 1196 E. Walnut St, (Pasadena)
17 924 N. Garey Ave, (Pomona)
18 216 Brookside Ave, (Redlands)
19 7002 Magnolia Ave. (Riverside)
20 _.-,_-. 5888 Mission Blvd. (Rubidoux)
21 . Hall of Records 172 W. 3rd St. (San Bernardino)
22 155 D. St. (Upland) '
23 1350 San Bernardino Rd. (Uplandl
24 14427 Ceffinguell Road (Whittier)
E-l
-------
Repeated Peak Episode
December 19-22
Anaheim 1010 Harbor Blvd.
Time
Mid
1
2
3
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
150 ....
' ' 94 .;..'.
75
56
No
75
94
132
244
414
545
376
188
150
169
263
338
338
338
226
188
188
188
Dec. 19
Thurs.
169 ,...
'-.-> - 'isii :':/-
1 50
113
4 Data
113
113
113
150
188
207
244
226
244
282
282
282
282
282
282
301
320
282
263
Dec. 20 -
Fri.
,.-.. 169
₯' 15°
132
113
No
113
94
113
132
188
470
583
432
395
489
489
545
583
489
489
470
432
395
338
E-2
'Dec. 21
Sat. ..
282
262
244
207
4 Data
414 '
395
395
451
470
545
602
696
677
564
677
470
338
282
263
207
207
188
169
Dec. 22
Sun.
150
207
226
119
56
38
19
56
113
94
75
75
75
75
75
113
169
75
75
,56
56
56
75
-------
Repeated Peak Episode
December 19-22
Azusa-803 Loren Ave.
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
1.0
11.
Dec. 18
19
75
56
38
19
75
19
38
25
113
113
113
113
169
263
338
282
, 226
188
301
320
188
244
Dec. 19
169
75
94
94
132
113
150
150
226
226
244 .
357
--
301
414
526
338
357
.' 301
376 .
414
320
244
Dec. 20
150
188
169
132
113
94
94
169
188
188
207
207
^«
150
282
376
545
376
282
620 .
^ :- 790
658
301
263
Dec. 21
113
38
56
113
113
113
94
94
94
188
282.
320
T*»"
508
808
846 .
733
714
508
'376
432
:- 564
564
489
Dec. 22
526
508
395
395
395
395
132
38
75
94
207
301
226
94
75
132
38
19
19
19
19
19
19
E-3
-------
Repeated Peak Episode
December 19-22
228 W. Palm (Burbank).
Time Dec. 18 Dec. 19 Dec. 20 Dec. 21 Dec. 22
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
188
150
150
113
94
75
75
94
150
244
226
226
~ .
75
75
113
113
132
113
113
113
Thurs
113
94
94
113
113
113
113
113
169
282
263
226
*
^
'75
75
113
113
132
451
451
508
376
283
320
508
226
207
226
188
301
395
470
338
263
188
320
432
526
508
508
526
470
338
376
376
376
338
188
244
188
100 -
150
132
169
244
244
226
150
188
301
634
564
639
639
414
282
263
263
263
263
282
282
263
263
226
226
244
263
150
38
205
244
414
338
301
282
282
282
301
19
19
9
E-4
-------
Repeated Peak Exposure
December 19-22
2631 Harbor Blvd. (Costa Mesa)
Time Dec. 18
Mid 132
1 113
2 113
3 113
4
5 113
6 113
7 132
8 113
.9 132
1 10 132
11 132
Noon 169
1 132
2 263
3 282
4 263
5 244
6 207
7
8
9
10
11 .
Dec. 19 Dec. 20
169
169
169
169
169
169
188
226
282
338
. 376
376
338
414
19 432
.19 432
38 169
113 244
169 320 -
169 338
169 338
169 357
119 395
E-5
Dec. 21
376
345
395
414
414
395
, 414
376
451
451
451
564
451
320
169
94
113
169
207
207
169
132
169
Dec. 22
169
150
132
113
38
38
56
56
75
56
56
113
94
94
94
113
150
94
75
56
75
75
75
-------
Donpa fdrr Orsrs '-' FvnoCMrP
i \ i_ i^CG L v_» i _ _, -\ *»...\ .- ^ «-nJ * C
December 19-22
612 W. Lambert (La Habra)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 13
320
263
207
169
113
94
75
94
75
94
56
113
132
188
226
150
150
169
188
. 188
188
188
188
Thurs.
Dec. 19
169
169
169
169
132
113
113
150
188
132
150
226
282
376
338
320
301
301
282
301
301
301
282
Dec. 20
282
301
244
226
132
132
169
207
226
188
38
56
75
113
188
169
169
169
169 .
169
150
150
150
E-6
Dec. 21
132
132
132
113
56
38
38
i -
38
56
94
150
207
169
150
.188
188
169
150
150
150
132
75
75
Dec. 22
75
75
56
56
56
56
38
38
38.
19
38
38
38
38
38
38
56
19
19
19
9
9
9
-------
Repeated Pc-ak Exposure
December 19-22
Lennox (11408 La Cienega)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
545
113
414
376
282
132
113
113
132
188
207
169
150
320
244
244
207
169
94
75
75
_
94
94
94
Dec. 19
94
451
188
226
244
226
226
226
244
263
263
395
489
357
338
338
376
320
263
244
207
207 .
226
226
Dec. 20 -
244
263
301
320
320
338
376
395 . '
395
451
620
_. .
677
583
432
508
414
320
226
207
169
169
166
226
'-Dec. 21
320
357
. 395
395
414
395 .
357
414
451
395
357
545
451
301
244
188
132
188
188
207
169
> . .
113
169
188 .
Dec. 22
180-
226
226
226
207
207
207
207
244
301
244
75
56
56
56
56
56
56
56
38
38
/ > i .
38
38
38
E-7
-------
Repeated Peak Exposure
December 19-22
3648 N. Long Beach (Long Beach)
Time
Mid
1
2
3
4
5
6
7
8
.9
.10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dae. 18
320
357
376
301
263
207
150
132
169
*
357
301
244
150
132
244
301
226
207
169
188
244
.
__
Dec. 19
__
--
-.-
244
226
188
169
207
244
244
263
263
263
- 263
244
188
207
226
Dec. 20
263
226
226
282
301
320
357
376
395
--
508
583
564
w
583
489
376
414
282
263
282
282
263
244
Dec. 21
282
338
376
432
432
414
395'
395
i
470
583
696
620
564
432
357
244
263
244
"188
"207
244
263
263
Dec. 22
226
207
169
132
132
113
94
56
38
.
94
113
132
94
56
38
56
56
38
19
19
19
19
19
E-8
-------
Repeated Peak Exposure
December 19-22
434 S. San Pedro (Los Angeles)
Time Dec. 18
Mid
- 1
2
3
4
5
6
7
8
9
10
11
Noon
1 - -::.-.
2
3
4
5
6
7
8
9
10.
11
244
226
226
188
188
188
188
169
'
263
263
207
207
226
244
263
263
263
284
282
301
338
Dec. 19
320
301
282
263
263
263
263
301
263
263
320
338
414
489
- -
43J
4B9
489
414
414
451
508
583
620
Dec. 20
508
486
451
376
357
263
263
301
244
207
207 .
244
338
545
696
£45
564 .
545
545
583
677
602
583
Dec. 21
526
; 451
414
301
301
263
226
263
282
677
639.
771
677
'....-
282
. 244
263
244
263
263
263
t .
263 .
301
282
Dec. 22
320
. 301
263
226
226
207
244
282
282
282
244
226
226
.--
132
56
56
94
75
75
75
75
75
75
E-9
-------
Repeated Peak Exposure
December 19-22
2351 Westwood Blvd. (L.A.)
Time Dec. 18 Dec. 19
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
132
150
150
169
244
169
113
94
113
113
113
226
263
263
226
244
244
226
209
150
150
169
188
169
113
113
113
113
113
188
282
338
338
489
432
376
395
357
357
.338
338
357
357
338
320
Dec. 20 -
282
263
263
263
263
282
263
226
226
432
376
526
752
545
526
451
395
376
338
357
357
376
E-10
Dec. 21
395
432
376
338
244
188.
150
169
263
414
451
414
338
207
, 169
188
244
263
263
244 . -
If59
188
226
Dec. 22
226
226
263
244
244
226
188
94
226
44
38
38
38
38
38
38
38
38
19
38
19
19
19
-------
Repeated Psik Exposure
December 19-22
18330 Gault St. Reseda
(San Fernando Valley)
(Near Canoga Pk.)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7 .
8
9
10
11
Dec. 18
113
75
56 .
75
75
75
75
75
150
188
75
56
150
56
75
75
132
150
150
150
150
150
150
150
Dec. 19
150
150
132
132
113
113
75
75
132
188
226
244
.-
150
132
169
188
207
. 188
' 207
207
207
263
244
Dec. 20
207
183
169
150
132
113
132
150
207
320
395
282
150
226
395
451
338
320
320
338
282
282
207
E-ll
Dec. 21
169
132
132
132
132
132
113
94
132
244
188
188
19
94
75
75
113
282
376
376
357
338
320
263
Dec. 22
244
244
244
226
226
244
244
207
113
19
19
19
19
19
19
19
19
19
19
19
19
19
19
-------
December 19-22
11220 Long Beach Blvd. (Lynwood)
Time
Mid
. 1
2
3
4
5
.6
7
8
9
.10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 13
338
338
320
244
169
150
150
150
169
188
207
169
150
150
188
357
263
338
338
244
188
207
207
207
Dec. 19
282
320
338
357
357
320
301
301
357
395
357
414
414
376
451
376
357
376
320
- 282
263
282
282
263
Dec. 20
301
226
188
188
207
263
301
338
338
301
357
395
583
526
470
489
338
301
263
263
263
282
E-12
Dec. 21
320
320
338
320
320
320
301 '
320
376
602
696
620
545
508
338
.226
207
226
226
207
"188
207
.226
188
Dec. 22
207
. 188
188
150
188
207
188
226
207
188
150
132
113
.132
113
38
56
56
56
38
38
38
19
19
-------
Repeated Peak Exposure
December 19-22
24811 San Fernando 12D (Newhall)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
19
19
19
19
19
19
19
19
38
1?
19
38
38
38
*» »
38
25
75
75
75
75
56
56
56
Dec. 19
56
56
75
75
75
75
75
75
94
94
75
75
38
38
4 »
75
94
113
113
94
94
56
56
56
Dec. 20 -
19
19
56
38
38
38
38
56 '
56
75
113
' 94
75
94
ft
113
132
150
169
169
150
113
75
56
Dec. 21
56
38
38
38
38
38.
38
38
56
56
75
75
75
56
«»
56
75
113
113
-113
113
94
75
56
Dec. 22
56
56
38
38
38
38
56
56
56
56
56
38
38
38
38
38
19
19
19
.._
E-13
-------
Repeated Peak Excosure
December 19-22
8850 Archibald Ave. Prado Pk.
(Norco)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
188
132
94
132
94
56
56
75
75
19
56
56
.38
38
56
132
207
207
188
132
94
94
94
Dec. 19
75
94
75
56
56
56
56
56
94
132
150
113
94
188
263
226
169 .
169
150
132
132
Dec. 20
94
94
94
75
94
75
56
56
56
113
132
150
132
94
56
56
263
282
357
376
376
244
188 .
169
E-14
Dec. 21 Dec. 22
113 188
94 169
94 150
94 132
94 113
75 132
56 113
56 150
75 132
94 169
132 188
169 169
94 132
56 94
113 56
132 38
132 56
338 56
3J76 75
2JM 75
3/6 75
414 38
320 56
226 38 '
-------
Repeated Peak Exoosure
'December 19-22 -
1196 E. Walnut St. (Pasadena) !
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
188
169
150
132
132
132
132
150
226
188
113
150
169
132
113
207
320
357
320
244
244
207
169
150
Dec. 19
188
188
150
132
113
113
113
188
282
282
244
244
244
282
376
714
846
884
846
790
677
602
602
414
Dec. 20 '
357
282
207
188
207
207
188
207
320 '
432
395
263
188
226
320
564
602
395
320
338
320
320
263
'Dec. 21
244
244
150
132
132
132
94
113
150
169
169
244
432
564
432
.338
414
451
470
451
414
414
.414
301
Dec. 22
263 .
. 301
282
263
282
282
263
226
226
188
207
169
150
94
113
132
38
38
38
19
19
19
19
19
E-15
-------
Repeated Peak Exposure
. December 19-22
924 N. Garey Ave. (Pomona)
Time Dec. 18
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8 '"'"':
9
n
94
75
94
94
75
75
94 .
113
113
113
75
75
94
113
150
188
244
226
207
188
169
169
169
Dec. 19
169
150
132
169
169
150
132
150
169
108
188
207
226
263
.282
320
395
357
282
263
244
244
207
Dec. 20
132
113
169
169
132
150
150
169 '
207
226
226
226
--
150
132
226
320
545 .
564
320
188
207
188
169
E-16
Dec. 21
226
; 205
207
169
150
169
132
113
188
207
188.
132
188
226
414
545
620
639
6P2
41 '
3f
320
376
Dec. 22
263
207
169
188
338
338
282
226
188
188
247
226
150
94
132
169
207
207
169
38
19
19
38
-------
Repeated Peak Exposure
December 19-22
7002 Magnolia Ave. (Riverside)
Time
Mid
1
2
3
4
5
6
7
8
; 9
10
n
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
75
75
75
75
75
94
113
132
221
207
132
94
94
169
207
207
169
132
132
113
94
113
Dec. 19
--
113
94
75
75
75
* 75
94
113
188
226
132
113
113
-
188
207
188
188
169
169
_
Dec. 20
113
. 94
75'
75
75
75
75
94
113
132
-
*
15D
T50
188
244
.244
244
244
226
H
Dec. 21
-: 150
132
94.
75
75
56
75
94
113
132
113
113
94
132
169
263
320
357
, 3D1
' '' \ - ' '
2JB3
263
263
P»
Dec. 22
226
188
169
132
94
113
169
169
132
94
113
113
94
75
75
56
75
38
38
19
19
19
.
E-17
-------
Repeated Peak Exposure
December 19-22
5888 Mission Blvd (Rubidoux)
Riverside Co.
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5 .
6
: 7
8
9
10
11
Dec. 18
18
19
38
56
56
56
56
75
75
75
56
38
75
38^
38
75
132
150
150
132
113
113
94
Dec. 19
75
75
75
75
75
75
75
75
75
.
75
56
56
56
38
75
207
207
188
188
169
150
113
Dec. 20
113
94
94
94
94
94
94
75
75
94
113
75
19
19
19
38
94
132
226
263
263
188
132
94
Dec. 21
75
75
75
56.
56
56 '
56
56
75
94
94
56
56
19
38
. 56
75
188
301
320
338
301
- 320
244
Dec. 22
169
.169
132
94
132
113
132
132
169
169
132
113
113
38
19
19
56
75
19
38
9
9
9
9
E-18
-------
Repeated Peak Exposure
Decenbar 19-22
155 D St. (Upland)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
:8
9
10
n ?.-
Dsc. IS
132
113
94
75
75
113
150
132
188
207
169
150
150
132
188
320
320
263
207
188
207
244
244
Dec. 19
207
244
244
207
188
169
150
150
188
244
244
188
282
226
282
432
432
320
282
244
244
207.
188
Dec. 20 \Dec. 21 Dec. 22
169
150
150
132
132
113
132
150 .
169 ..
132
150
150
207
]]6
263
301
226
169
150
150
226
150
169 .
226
263
188
150
132
132 .
132
132
207
244
207
188
207
]07
207
508
714
639
301
376
282
320
338
301
226
244
226
188
320
320
282
282
320
320
395
188
113
113
188
301
263
244
169
132
132
113
E-19
-------
Repeated Peak Exposure
December 19-22
1350 San Bernardino Co. (Upland)
Time
Mid
1
2
3
4
5
6
7
8
: 9
'10
11
Noon
1
2
3
4
5
6
7
8
9
10
11
Dec. 18
-.-
38
19
38
19
38
56
75
113
94
<--
75
56
56
75
150
188
150
113
132
169
188
* -»
Dec. 19
^ ~
188
188
169
150
132
132
113
132
132
132
94
94
132
150
132
282
301
. 244
207
207
169
169
* »
Dec. 20 .
?>-*
94
94
75
75
75
94
94
94
75
75
113
75
113
94
132
169
169
113
113 '
113
169
150
Dec. 21
««
207
169
113
75
75.
94
75
94
132
113
94
113
94
94
150
263
470
263
,169
169
188
263
Dec. 22
_-
150
169
169
188
207
263
226
169
226
207
263
207
113
75
56
94
188
169
188
132
94
75
E-20
-------
Repeated Pea!: Exposure
December 19-22
831 State St. (Santa Barbara)
Time
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7
8
9
.10
11
Dec. 18
--
56
75
75
75
75
94
113
113
132
75
75
75
75
75
94
94
132
113
113
113
132
113
»«
Dec. 19
75
75
75
75
75
75
94
150
188
94
113
132
113
132
150
188
226
226
226
207
207
226
^
Dec. 20
94
132
113
113
113
113
132
1 69
244
169
150
113
132
150
IBS
226
301
282
244
263
244
244
-
Dec. 21 Dec. 22
-: 94
94
94
94
75
94
113
150
169
132
132
113
56
56
.56
' 94
150
150
i '
'.,-.. 1J59.
1P°
1-50
.132
Mt W
75
75
75
56
38
38
38
38
38
19 .
19
19
19
19
38
56
56
75
38
38
38
38
_..
E-21
-------
Repeated Peak Exposure
December 19-22
Bldg. 548 13th St. Near Lave (Pt. Mugh)
Time Dec. 18
Mid
1
2
3
4
5
6
7
8
9
10
11
Noon
1
2
3
4
5
6
7 y; : '*"
8
9
10 '"
11
19
9
9
9
9
9
19
19
. 19
. 19
150
132
56
38
19.
,38
38
19
19. .
''38
'. "
38
38
38
38
Dec. 19 Dec. 20 '
56
56
56
38
38
38
38
38
38
56
,132
150
169
113
113
150
169
150
150
169
150
132
113
113
94
75
75
56
56
38
38
38 '
38
56
.--..' ,75
*
75
132
132
94
56
38
38
94
94
132
.
132
113
113
Dec. 21 Dec. 22
94
94
38
56
56
56-
56
38
38
56
.., 75 .,
75
56
56
56
38
38
19
. ^8
; ' 'I8 . . '
/
;19
: ' il -.:
38
38
38
38
38
38
38
38
38
38
38
38
38
19 .
19
19
19
19
19
19
19
19
19
.
9
19
19
19
1-22
-------
December 18
No. of
Site Measurements
Pt. Mugu
Costa Mesa
Long Beach
Santa Barbara
Newhall
Reseda
Burbank
Pasadena
Los Angeles
2351 Westwood
Los Angeles
4345 S. San Pedro
Lynwood - -
m
f^ Lennox
CO
LaHabra
Anaheim
Azusa
Pomona :
Upland (San
Bernardino)
Norco
Rubidoux
Riverside
Upland
155 D St.
24
18
21
.22
23
23 .
20 '':''
24
, .
21
21
24 :;'
24
23 j
23 .'.,'', ,.. ;
22
23 ;
20
. ; .
24 ' .
23
.22.
23
' .
Max.
Value
150
282
376
132
75
188
244
357
263
338
357
545
320
338
338
244
188
207
150
226
320
Mln. No. of NO?
Value Cone. >1SQ
9
113
132
56
19
56
75
113
94
169
150
75
56
:: 19
19
75
19
19
19
75
75
0
6
17
0
. 0
1
4
. 13
11
21
19
13
12
10
10
8
3
4
0
6 '
12
No. of NO?
Cone. >250
0
3
8
0
0
o
0
'. 3
2
8
7
. 6
2
5
4
, '0
0
0
0
0
3
No. of N02
Cone. >350
0
0
3
0
0
0
0
1
0
0
1
4
0
0
0
0
0
0
0
0
0
"
No. of N02
Cone. >450
0
0
0
0
0
0
0
0
0
0
0
2
o-
0
0
0
6
0
0
0
0
No. of N02
Cone. >940
0
0
0
0
0
0
0
'0
0
0
0
0
0
0
0
0
0
0
0
0
0
-------
December 19
Site
Pt. Mugu
Costa -Mesa
Long Beach
Santa Barbara
Newhal 1
Reseda
Burbank
Pasadena
Los Angeles
2351 Westwood
Los Angeles
434 San Pedro
m
^ Lynwood
Lennox
LaHabra
Anaheim
Azusa
Pomona
Upland (D St.)
Norco
Rubidoux
Riverside
Upland (San
Bernardino)
No. of
Measurements
24
9
15
22
23
' 24
20, :
24 ,
24 ;
':.: ' . *>
. 23 ..': "
24
24 .
23
..::". 23 - ;!.-:.,:
23
23 .'
22
21
22
. 19
23 .
'.'.
Max.
Value
619
169
263
226
113
244
508
884
489
620
451
489
376
320
526
395
432
263
207
226
301
Value
38
19
169
75
38
75
94
113
113e
263 1
263
94
113
; ';,/. 113 ;.
75
132
150
56
38
75
94
No. of NO?
Cone. >150
3
5
15
8
0.
12
7
19
19
' 23
24
22
17
' 16 ''''"
16
18
21
5
5
8'
10
No. of NO?
Cone. >250
0
0
4
0
0
1
5
13
15
23
24
10
11
"**" 10
10
\
7 .
6
1
0
0
2
No. of N02
Cone. >350
0
0
0
0
0
0
3
10
8
11
. 12
4
0
0
6
2
2
0
0
0
0
*
No. of N02
Cone. >450
0
0
0
0
0
0
3
8
1
7
1
1
0
0
1
. 0-
0
0
0
0
0
No. of
Cone.
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
N02
>940
.
-------
December 20
Site
Pt. Mugu
Costa Mesa
Long Beach
Santa Barbara
Newhall
Reseda
Burbank
Pasadena
Los Angeles
2351 Westwood
Los Angeles
434 San Pedro
rn Lynwood
^ Lennox
LaHabra
Anaheim
Azusa
Pomona
Upland (San
Bernardino)
Norco
Rubidoux
Riverside
UpJand.(D St.)
No. of
Measurements
24
23
20
22
23
22
24 .
23
23
23
22
23
23
23
23
23
24
24
24
18
V
Max.
Value
132
432
. 583
" 301
169
451
526
602.
752
846
583
677
282
583
790
564
376
376
263
244
301
Mih.. No. of NO?
Value Cone. >15p
38
169
226
94
19
113
188
188
226
207 .
188
169
38
94
94
113
56
56
19
75
113
0
23
22
11 ,
2
17
24
23
23
23
22
23
14
16
17
16
5
5
4
6
10 '
No. of NO? No. of N02 No. of N02
Cone. >250 Cone. >350 Cone. >450
0
13
19
3
0
11
19
15
21
19
18
16
2
14
10
4
1
1
2
0
2
0
7
10
0
0
3
11
6
13
15
6
10
0
13
6
2
0
0
0
0
0
0
0
0
0
1
5
2
6
13
4
5
0 .
9
4
2
0
0
0
0
0
No. of N02
Cone. >940
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-------
December 21
No. of
Site Measurements
Pt. Mugu
Costa Mesa '
Long Beach
Santa Barbara
Newhall
Reseda
Burbank
*
Pasadena
Los Angeles
2351 Westwood
Los Angeles
434 San Pedro
7* Lynwood
ro
°> Lennox
LaHabra
Anaheim
Pomona
Upland (San
Bernardino)
Norco
Rubidoux
Riverside
Upland (D St.)
24
23
23
22
23
24
23
24
24
23
24 '
24
23 '
23 ,;
23
22
24
24 '
22
23
Max.
Value
94
564
696
169
113
376
639
564
451
771
696
545
207
696
639
470
414
338
357
714
Mln,
Value
19
94
188
56
38
75
132
113
150
244
188
113
38
169
113
75
56
56
56
132
No. of NO?
Cone. >15p
0
20
23
2
0
11
19
17
23
.23
24
22
5
23
19
9
8
7
8
18
No. of NO?
Cone. >250
0
14
18
0
0
7
11
12
12
20
15
14
0
17
9
3
5
5
7
9
No. of N02
Cone. >350
0
13
13
0
0
3
6
9.
6
7
6
12
0
12
7
1
3
0
1
4
No. of NO?
Cone. >450
0
5
5
0
0
0
4
4
1
6
5
3
0-
9
5
0
-
0
0
0
3
No. of N02
Cone. >940
0
0
o
0
0
0
0
0
0
. .0
0
0
0
0
0
0
0
0
0
0
-------
December Z2
No. of
Site Measurements
Pt. Mugu
Costa Mesa
Long Beach
Santa Barbara
Newhall
Reseda
Burbank
Pasadena
Los Angeles
2351 Westwood
Los Angeles
^434 San Pedro
ro
""* Lynwood
Lennox
LaHabra
Anaheim
Azusa . - , . ..-
_. *"**
Pomona
Upland (San
Bernardino)
Morco
Rubidoux
Riverside
UpYsrnd (D St.)
24
23 ' ':..
23
22
19,
24
24 " ' '."
24 ,. V
24, Y
23
24. , .
24. -
23
23
23 -. 7^ ;
23 ; . :
22
24
24 ,. ' .-.
22 ;
23
Max.
Value
38
169
226
75 '
56
244
414
301
263
320
226
301
75
226
526
338
263
188
169
226
385
Min. No. of NO?
Value Cone. >150
19
38
. 19
19
19
19
9
19
19
56
19
38
9
19
19
19
56
38
9
19
113
0
1
3
0
]
8
19
12
8
13
10
11
0
3
16
14
5
4
5
18
No. of N02 No. of N02 - No. of NO?
Cone. >250 Cone. >350 Cone. >450
0
0
0
0
0
0
14
7
1
6
0
1
0
0
4
2
0
0
0
10
0
0
0
0
0
0
1
0
0
0
o
0
0
0
s
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0'
0
0
0
^
0'
0
0
0
0
0
No. of NO?
Cone. >940
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
o
0
0
0
0
-------
I
ro
CD
75
(1600-2000)
. , . ,!3J12 '150-188 \-\
.J-.-.U--
V>
r^
(1500-1600)
282-545
\(0000-0400
SAN GABRIEL MOUNTAINS
X"*^.
r-^V
...|J^^
~ r~-lfp*\
/.. . V
/'**'"' X VAN BEFS.'IAROINO
{-,.>!..-<-- ,.--*>^ mni-fjTAirjs
*.,; i,.'-;i\, ^r^^^^irF-^' ' ""T?^
v<»^'' .. ! ; .. ..->-. .. ^/-"'
Z»A2USA --.-,<--- -w^.j it;n_lRft
-/-,_ MOWITAINS
^ V"-^
/^;-.. ^-'^-x
--.J:-^'-.v %
tlS5-iao) (1^^^°^Eii^(160o:i?001£Z2H^-
150-188
600-1:
.UPLAND
21
* SAN !
POMONA
LOSANGELES
263-357
(1500-J800)
"263-35;
0» (0000^0400),
JLO.NGCEACH
SN>
24
19/ \
15 RIVERSIDEV 207-226\
' 207 / (0900-1000).
1700-1800)
S* ANAHEIM
338
(1700-1900)
4
-4>
5/COSTA MESA
&acfjtc Ocean
263-282
(1400-1600)
'^'
/r
ox
SANTA AN A
MOUNTAINS
Peak N02 Concentration Range (yg/m3) and Time Period
at Monitoring Sites for Wednesday, December 18, 1974
-------
-'"\ Yi -\>V
r&&*v. \;"V
, .,: " -.-Ji2
. L03 ANGELES CO.
/..' ''.' ^ SAN BERNARDINO
{>,.:. . ... Af,9(AV 7VJ WS
ro
113 .
(1700-1000)
SAN GABRIEL MOUNTAINS
(1300-2300)
LOS ANGELE
17« POMONA (14QO- 2000)
4*CHINO
10 LOSAhGELES
(0900-2300)
263-620
(0000-230C)
(1700-1800)
19/
K.oirn.5 RIVERSIDE V 188-226
NOPCO* 263 X(2100-2200
(1700)
WHITTIOR0 .7
LA HADRA
\\ 263-489 263-451
-
(0900-1800) (0000-2300)
. (1300-2300).^'=^.^:::
1
ANAHEIM
63-320
(140U-2300)
263. .
9»(1600-1900)
LONG BEACH
"^J'.'^O?^?^
«... ' i '.-^ '».*
^V^b Ocean
Peak NOa Concentration Range (yg/m3) and Time Period.
at Monitoring Sites for Thursday, December 19, 1974
-------
NEWHALLV*
150-169
(1700-2000)
. '^\ .
>.,-. .v
j ".-.,. .^ SAN BERNARDINO
£_ MOUNTAINS
SAN GABRIEL MOUNTAINS
jr^7-«' ''
L . . - i12
u'. ' LOS ANGELES CO.
w
., 320r.526 ^-praaj
-
(0900-1100)
...
3 (1 400-2200) .u^
*
(1500-2200)
263-
(0800-1100)
263-489 n2""502 (1400-2300) (1500-1600)_^- ;UPLA!VD
SAN BERNARDi.MO
121 18
LOS ANGELES , 338.846
.-(1200-2300)
17*POiV10NA( 1600-1800)
4»CHINO
(0000-2300)
>
10 LOS ANGELES
RUDIDOUX"( 1900-2000)
\
S3«LYNV;
263-583 VVHITTIER* .7
LAHABRA
RIVERSIDE «/226-244\
0)
ANAHEIM -j '
-------
i
co
113
(1700-2000)
SAN GABHIfL MOUNTAINS
SANTA MOfJICA MOUNTAINS
fOOOO-0100)PASADCI
301-639
^( 1 500-2300)
__^ - ,- %
282^846 Tl 600-2200) ?1( 1600-1800
U ^. .
______
(1000-2300)
(1600-1800)
1LOSANGSLES
, .:-.33- 432
(000-1500)
RUBIDOUX "( 1800-2200)
(0800-1300)
(0000-0500)N244-771
) (0700-2300)
,
(1800-1900)
LENNOX«]0
1 ., ..
(.1200:2ooo )^;::,;;^^>
< "*
ANAHEIM
263-696
(0500-1900)'
5/COSTA MESA
320-564
Peak MOz Concentration Range (pg/m3) and Time Period
'at Monitoring Sites for Saturday, December 21, 1974
-------
NEWHALL
56
(0800-1000)
r^<^'VVV^v
t ' i!...-- *" "J12 - -;
*' LOS ANGELES CO. (0000-0200)
^^__>' ^j(0500-0600)
SAHTA MONICA MOUNTAINS
__ ^^r-<>^.?-:4 ,
{"T^-tifr -o>l
^^. :t^..:\^
SAN GABHICL MOUNTAINS
BURBANK
lb 263-301 _
(0000-0600) 395-526 -320-395
(0500-1100)~22
.282-338
-0100)
(0900-1100)
1.LOS ANGELES
. '^
.-''.." ' ' '. i T\
* ":,/:>:.:.« \
'
Concentration Range (pg/m3)'and Time Period
-. j \ r-jf " / uinj I IIIIC r Cl
at Monitoring Sites for Sunday, December 22, 1974
. °SAN EtRNARDI.'JO
I'M
^8- REDLANDG
_20 /159
RUBIDOUX" (0000-0100)
(0800-0900)
.
(0000-0300)
-------
SAM BERNARDINO
REDLAND1
SA/V GABRIEL MOUNTAIN
EURg'ArJx"" '^'^"' "^^^-^.ii-..l-0^c^>r^v^«^r<^>r^'^^
I PASADENA >1S ,cf^" ^2»AZUSA "" ~-- -v'-.-fv. i..j' 'j^ p"'"'
\ v^ JD/ _^ loOnnrM
SANTA MOKICA MOUNTAINS
0 LOS ANGELES
, 338 \
(2300))
4 >-, -.^-?,»/a
* ,7 V.. SA^ .-'
f''''
//r/o\X:--rrr» _^
"
357
(0100-1000)
9»
LOWG BEACH
5/COSTA MESA
282
(1500)
Maximum N02 Concentrations (yg/m3) and Time at
Monitoring Sites on.Wednesday, December 18, 1974
-------
(1700-1800)
SA/V GABRIEL MOUNTAINS
I*"'* »
*'»" tor, ANGELES CO.
SAHTA UOt.'ICA MOUNTAINS
>a
I LOS ANGELES
17*POMONA
4*CHI.MO
RU3IDOUX (1700-1800]
263
9. (1600-1900)
LONG BEACH
,
Maximum N02 Concentrations (yg/m3) and Time at
Monitoring Sites on Thursday, December 19, 1974
-------
*C*v <-*£**
NEWHALLV»
169 .
(1800-1900)
SAN BERNARDINO
,. MOUHTAI.'IS
"
JM/V GABRIEL MOUNTAINS
SANTA MONICA MOUNTAINS
RUBIDOUXV 1900-2000)
xx.
/*^^SS^
. ' i ''fii\~ - ruiun fin i <;
I 's"''ti,\CH!N° HH-f
I '^;.V^ -
;,. ::!,» .''-, IMVJpVU' JIO
Stv^-^-^^ (1900-2000)
,.?)'-'-/'.n33> /r ^y>-» -
Maximum N02 Concentrations (yg/m3) and Time at
Monitoring Sites on Friday, December 20, 1974
-------
NEWHALL
113
(1700-2000)
&4/V GABRIEL MOUNTAINS
,
../rtr^x-v \
'
v, 7X1/V firRNAROINO
'Si-* *
x., "-?,.,.
"U';-v
' i.j >
v.'^»
SAN DERN'ARCIiJO
REDLANDS
' LOS ANGELES CO.
3 *
." BURUANK
SANTA MONICA MOUNTAINS
,..<>
10 LOS ANGELES
771 \
(1100))
13«LYNiVOOD
696 WHJTTIER
.
(1200) f^r^^';::
696
O.(llOO)
LONG BEACH
|<'
Maximum N02. Concentrations (i*g/m3) and Time at
Monitoring. Sites on Saturday, December 21, 1974
-------
NEWHAU
/ 56
. /0000-0100'
V.0600-1000
'
W/V GABRIEL MOUNTAINS
oooo-020o\ 3
0500-0600,'BURBANX
SANTA MONICA MOUNTAINS
0100'\
0900/
RUDIDOUX
RIVERSIDE
1S8
(0100-1000)
Maximum N02 Concentrations (pg/m3) and Time at
"Monitoring Sites on Sunday, December 22, 1974
------- |