LEAD f)
| Source/Receptor Area | Quarters/Months Exceeding Standard h) |
|||||
|---|---|---|---|---|---|---|
| No. | Location | Station No | Max. Mo. Conc. µg/m3 |
Max. Qtrly. Conc. µg/m3 |
Federal >1.5 µg/m3 Qtrly. Avg. |
State >=1.5 µg/m3 Mo. Avg. |
| LOS ANGELES COUNTY | ||||||
| 1 | Central LA | 087 | .11 | .07 | 0 | 0 |
| 2 | NW Coast LA Co | 091 | -- | -- | -- | -- |
| 3 | SW Coast LA Co | 094 | .05 | .04 | 0 | 0 |
| 4 | S Coast LA Co | 072 | .06 | .04 | 0 | 0 |
| 6 | W Sn Fernan V | 074 | -- | -- | -- | -- |
| 7 | E Sn Fernan V | 069 | .06 | .05 | 0 | 0 |
| 8 | W Sn Gabrl V | 088 | -- | -- | -- | -- |
| 9 | E Sn Gabrl V | 060/591 | -- | -- | -- | -- |
| 10 | Pomona/Wln V | 075/108 | -- | -- | -- | - - |
| 11 | S Sn Gabrl V | 085 | .10 | .08 | 0 | 0 |
| 12 | S Cent LA Co | 084 | .09 | .07 | 0 | 0 |
| 13 | Sta Clarita V | 089 | -- | -- | -- | -- |
| 14 | Antelope V | 096 | -- | -- | -- | -- |
| ORANGE COUNTY | ||||||
| 16 | N Orange Co | 3177 | -- | -- | -- | -- |
| 17 | Cent Orange Co | 3176 | .06 | .03 | 0 | 0 |
| 18 | N Coast Orange | 3195 | -- | -- | -- | -- |
| 19 | Saddleback V | 3186 | -- | -- | -- | -- |
| RIVERSIDE COUNTY | ||||||
| 22 | Norco/Corona | 4155 | -- | -- | -- | -- |
| 23 | Metro Riv Co | 4144/4146 | .06 | .04 | 0 | 0 |
| 24 | Perris Valley | 4149 | -- | -- | -- | -- |
| 25 | Lk Elsinore | 4158 | -- | -- | -- | -- |
| 26 | Temecula V | 4160/4163 | -- | -- | -- | - - |
| 28 | Hemet/Sn Jcnto | 4141 | -- | -- | -- | -- |
| 29 | San Gorgonio P | 4150 | -- | -- | -- | -- |
| 30 | Coachella V | 4137/4157 | -- | -- | -- | -- |
| SAN BERNARDINO COUNTY | ||||||
| 32 | NW SB V | 5175 | .05 | .04 | 0 | 0 |
| 33 | SW SB V | 5171 | -- | -- | -- | -- |
| 34 | Cent SB V | 5197/5203 | .04* | .04* | 0* | 0* |
| 35 | E SB V | 5204 | -- | -- | -- | -- |
Areas 9, 10, 23, 30 and 34 have two monitoring stations each. Values shown are the highest recorded at either station.
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.
f) - Total suspended particulates, lead, and sulfate were determined
from samples collected every 6 days by the high volume sampler method, on
glass fiber filter media. Federal TSP standard superseded by PM10 standard, July 1, 1987.
h) - Special monitoring immediately downwind of stationary sources
of lead was carried out at several locations in 1994. The maximum
monthly average concentration was 1.66 µg/m , and the maximum quarterly
average concentration was 0.93 µg/m , both recorded in Area 1.
