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Source/Receptor Area |
Average Compared to Federal |
No. Days Std.Exc’d State |
|||||
|
No. |
Location |
Station No. |
No. Days |
Max. Conc. in ppm 1-hour |
AAM in ppm |
% above std. |
>.25 ppm 1-hour |
|
Los Angeles County | |||||||
|
1 |
Central LA |
087 |
349* |
.24* |
.0450* |
.0* |
0* |
|
2 |
NW Coast LA Co |
091 |
344* |
.20* |
.0278* |
.0* |
0* |
|
3 |
SW Coast LA Co |
094 |
365 |
.18 |
.0305 |
.0 |
0 |
|
4 |
S Coast LA Co |
072 |
359 |
.21 |
.0367 |
.0 |
0 |
|
6 |
W Sn Fernan V |
074 |
360 |
.14 |
.0317 |
.0 |
0 |
|
7 |
E Sn Fernan V |
069 |
356 |
.18 |
.0454 |
.0 |
0 |
|
8 |
W Sn Gabrl V |
088 |
365 |
.22 |
.0376 |
.0 |
0 |
|
9 |
E Sn Gabrl V |
060/591 |
365 |
.22 |
.0464 |
.0 |
0 |
|
10 |
Pomona/Wln V |
075/108 |
362 |
.21 |
.0456 |
.0 |
0 |
|
11 |
S Sn Gabrl V |
085 |
359 |
.23 |
.0456 |
.0 |
0 |
|
12 |
S Cent LA Co |
084 |
362 |
.21 |
.0463 |
.0 |
0 |
|
13 |
Sta Clarita V |
089 |
355 |
.16 |
.0305 |
.0 |
0 |
|
14 |
Antelope V1) |
096 |
360 |
.14 |
.0194 |
.0 |
0 |
|
Orange County | |||||||
|
16 |
N Orange Co |
3177 |
362 |
.20 |
.0391 |
.0 |
0 |
|
17 |
Cent Orange Co |
3176 |
358 |
.18 |
.0371 |
.0 |
0 |
|
18 |
N Coast Orange |
3195 |
365 |
.18 |
.0239 |
.0 |
0 |
|
19 |
Saddleback V |
3186 |
-- |
-- |
-- |
-- |
-- |
|
Riverside County | |||||||
|
22 |
Norco/Corona |
4155 |
-- |
-- |
-- |
-- |
-- |
|
23 |
Metro Riv Co |
4144/4146 |
362 |
.15 |
.0306 |
.0 |
0 |
|
24 |
Perris Valley |
4149 |
-- |
-- |
-- |
-- |
-- |
|
25 |
Lk Elsinore |
4158 |
364 |
.13 |
.0208 |
.0 |
0 |
|
26 |
Temecula V |
4163 |
-- |
-- |
-- |
-- |
-- |
|
28 |
Hemet/Sn Jcnto |
4141 |
-- |
-- |
-- |
-- |
-- |
|
29 |
San Gorgonio P |
4150 |
-- |
-- |
-- |
-- |
-- |
|
30 |
Coachella V2) |
4137/4157 |
365 |
.09 |
.0223 |
.0 |
0 |
|
San Bernardino County | |||||||
|
32 |
NW SB V |
5175 |
365 |
.20 |
.0464 |
.0 |
0 |
|
33 |
SW SB V |
5171 |
-- |
-- |
-- |
-- |
-- |
|
34 |
Cent SB V |
5197/5203 |
349* |
.17* |
.0424* |
.0* |
0 |
|
35 |
E SB V |
5204 |
-- |
-- |
-- |
-- |
-- |
|
37 |
Cent SB Mtns |
5181 |
-- |
-- |
-- |
-- |
-- |
ABBREVIATIONS USED IN AREA NAMES: LA = Los Angeles SB = San Bernardino Riv = Riverside Co = County
N = North S = South W = West E = East V = Valley Lk = Lake P = Pass Cent = Central
Areas 9, 10, 23, 30 and 34 have two monitoring stations each. Values shown are the highest recorded at either station.
"No. Days of Data" for the areas with two stations is based on the annual average (if reported) or the number of days above state standard.
ppm
- Parts Per Million parts of air, by volume.
AAM = Annual Arithmetic Mean
-- = Pollutant not monitored.
* Less than 12 full months of data. May not be representative.
1) Mojave Desert Air Basin.
2) Salton Sea Air Basin.
b) The federal standard is annual arithmetic mean NO2 greater than 0.0534 ppm.
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