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Lead f)

Source Receptor Area

Station
No.
Max Mo. Conc. µg/m3 Max. Qtrly. Conc. µg/m3 Federal State
No. Location   >1.5 µg/m3 Qtrly. Avg. ³ 1.5 µg/m3 Mo. Avg.
Los Angeles County
1 Central LA 087 0.07 0.07 0 0
2 NW Coast LA Co. 081 -- -- -- --
3 SW Coast LA Co. 084 0.06* 0.05* 0*0*  
4 S Coast LA Co. 072 0.05 0.03 0 0
6 W Sn Fernan V 074 -- -- -- --
7 E Sn Fernan V 069 -- -- -- --
8 W Sn Gabrl V 088 -- -- -- --
9 E Sn Gabrl V 1 060 -- -- -- --
9 E Sn Gabrl V 2 591 -- -- -- --
10 Pomona/Wlnt V1 075 -- -- -- --
10 Pomona/Wlnt V2 108 -- -- -- --
11 S Sn Gabrl V 085 0.08* 0.06* 0* 0*
12 S Cent L Co 084 0.07* 0.07* 0* 0*
13 St. Clarita V 089 -- -- -- --
Orange Couty
16 N. Orange Co. 3177 -- -- -- --
17 Cent Orange Co. 3176 -- -- -- --
18 N. Coast Orange 3195 -- -- -- --
19 Saddleback V 3186 -- -- -- --
Riverside County
22 Norco/Corona 4155 -- -- -- --
23 Metro Riv Co. 1 4144 0.07 0.04 0 0
23 Metro Riv Co. 2 4146 0.07 0.04 0 0
24 Perris Valley 4149 -- -- -- --
25 Lk Elsinore 4158 -- -- -- --
26 Temecula 4163 -- -- -- --
29 San Gorgonio Pk. 4150 -- -- -- --
30 Coachella V1** 4137 -- -- -- --
30 Coachella V2** 4157 -- -- -- --
San Bernardino County
32 NW SB V 5175 0.04 0.04 0 0
33 SW SB V 5171 -- -- -- --
34 Cent SB V 1 5197 -- -- -- --
34 Cent SB V 2 5203 0.04* 0.04* 0* *
35 E SB V 5204 -- -- -- --
37 Cent SB Mtns 5181 -- -- -- --
District Maximums   0.08 0.07 0 0

 

* - Less than 12 full months of data. May not be representative.
** - Salton Sea Desert Air Basin.
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Federal TSP standard superseded by PM10 standard, July 1, 1987.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 four locations in 1997. The maximum monthly average concentration was 0.42 µg/m3,
recorded in Area 5, Southeast Los Angeles County, and the maximum quarterly average concentration was 0.33 µg/m3, recorded in Area 1, Central Los Angeles County.

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Last Update: 10/29/98
URL: http://www.aqmd.gov/smog/97lead..html