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1997 PM10 Summary
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Suspended
Particulates PM10 e) |
Source Receptor
Area |
Station
No. |
No.
Days
of
Data |
Max.
Conc.
In µg/m3
24-hour |
Federal
>150 µg/m3
24-hour |
State
>50 µg/m3
24-hour |
AAM
Conc.
µg/m3 |
AGM
Conc.
µg/m3 |
| No. |
Location |
| Los Angeles County |
| 1 |
Central LA |
087 |
60 |
102 |
0 |
15(25.0) |
42.5 |
39.2 |
| 2 |
NW Coast LA Co. |
081 |
-- |
-- |
-- |
-- |
-- |
-- |
| 3 |
SW Coast LA Co. |
084 |
55* |
79* |
0* |
4(7.3)* |
35.5* |
33.8* |
| 4 |
S Coast LA Co. |
072 |
57 |
87 |
0 |
10(17.5) |
40.5 |
38.2 |
| 6 |
W Sn Fernan V |
074 |
-- |
-- |
-- |
-- |
-- |
-- |
| 7 |
E Sn Fernan V |
069 |
56* |
92* |
0* |
17(30.4) |
44.8* |
41.9* |
| 8 |
W Sn Gabrl V |
088 |
-- |
-- |
-- |
-- |
-- |
-- |
| 9 |
E Sn Gabrl V 1 |
060 |
60 |
116 |
0 |
24(40.0) |
45.9 |
40.8 |
| 9 |
E Sn Gabrl V 2 |
591 |
-- |
-- |
-- |
-- |
-- |
-- |
| 10 |
Pomona/Wlnt V1 |
075 |
-- |
-- |
-- |
-- |
-- |
-- |
| 10 |
Pomona/Wlnt V2 |
108 |
34* |
67* |
0* |
6(17.6)* |
39.6* |
38.0* |
| 11 |
S Sn Gabrl V |
085 |
-- |
-- |
-- |
-- |
-- |
-- |
| 12 |
S Cent L Co |
084 |
-- |
-- |
-- |
-- |
-- |
-- |
| 13 |
St. Clarita V |
089 |
59 |
67 |
0 |
5(8.5) |
32.9 |
30.5 |
| Orange County |
| 16 |
N. Orange Co. |
3177 |
-- |
-- |
-- |
-- |
-- |
-- |
| 17 |
Cent Orange Co. |
3176 |
60 |
91 |
0 |
11(18.3) |
38.9 |
36.3 |
| 18 |
N. Coast Orange |
3195 |
-- |
-- |
-- |
-- |
--34.5* |
-- |
| 19 |
Saddleback V |
3186 |
56* |
86* |
0* |
4(7.1)* |
49.6 |
32.5* |
| Riverside County |
| 22 |
Norco/Corona |
4155 |
60 |
158 |
1(1.7) |
25(41.7) |
64.9 |
44.2 |
| 23 |
Metro Riv Co. 1 |
4144 |
59 |
163 |
1(1.7) |
41(69.5) |
-- |
56.3 |
| 23 |
Metro Riv Co. 2 |
4146 |
-- |
-- |
-- |
-- |
-- |
-- |
| 24 |
Perris Valley |
4149 |
60 |
139 |
0 |
19(31.7) |
44.5 |
38.5 |
| 25 |
Lk Elsinore |
4158 |
-- |
-- |
-- |
-- |
-- |
-- |
| 26 |
Temecula |
4163 |
-- |
-- |
-- |
-- |
-- |
-- |
| 29 |
San Gorgonio Pk. |
4150 |
57 |
227 |
1(1.8) |
14(24.6) |
38.2 |
30.1 |
| 30 |
Coachella V1** |
4137 |
59 |
63 |
0 |
1(1.8) |
26.4 |
23.6 |
| 30 |
Coachella V2** |
4157 |
54* |
144*i) |
0* |
23(42.6)*i) |
49.1*i) |
44.2*i) |
| San Bernardino County |
| 32 |
NW SB V |
5175 |
-- |
-- |
-- |
-- |
-- |
-- |
| 33 |
SW SB V |
5171 |
59 |
208 |
1(1.7) |
21(35.6) |
51.3 |
44.8 |
| 34 |
Cent SB V 1 |
5197 |
61 |
122 |
0 |
29(47.5) |
53.7 |
47.6 |
| 34 |
Cent SB V 2 |
5203 |
60 |
108 |
0 |
27(45.0) |
51.4 |
45.6 |
| 35 |
E SB V |
5204 |
60 |
103 |
0 |
23(38.3) |
43.2 |
35.4 |
| 37 |
Cent SB Mtns |
5181 |
58 |
47 |
0 |
0 |
23.8 |
20.8 |
District
Maximums |
|
227 |
1 |
41 |
64.9 |
56.3 |
µg/m3 - Micrograms per cubic meter of air.
AAM - Annual Arithmetic Mean
AGM - Annual Geometric Mean
-- - Pollutant not monitored.
* - Less than 12 full months of data. May not be representative.
** - Salton Sea Desert Air Basin.
e) - PM10 samples were collected every 6 days using the size-selective inlet high volume
sampler with quartz filter media.
g) - Federal PM10 standard is AAM > 50 µg/m3; state standard is AGM > 30
µg/m3.
i) - The data for the two samples collected on high-wind-days (157 µg/m3 on
3/17/97 and 182 µg/m3 on 4/28/97) were excluded according to the EPA’s
Natural Events Policy.
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