PM10 24 Hour Average (µg/m3)

The information in this report is based on preliminary data and is subject to change. The

real-time PM10/PM2.5 monitoring equipment is used for air quality forecasting and trend

analysis.

01/27 01/28 01/29 01/30 01/31 02/01 02/02

San Joaquin

Stockton-Hazelton

Manteca

Tracy-Airport 8
9
14
16
14
9

Stanislaus

Modesto-14th

Turlock

Merced

Merced-Coffee

Madera

Madera

Madera-City 13
18
22
43
38
38
14

Fresno

Clovis

Fresno-Drummond

Fresno-First

Fresno-SSP

Huron

Parlier

Tranquillity

Kings

Corcoran

Hanford 19
25
27
40
35
22
14

Tulare

Ash Mountain-SNP

Lower Kaweah-SNP

Porterville

Visalia, Church

Kern

Arvin-DiGiorgio

Bakersfield-Calif 54
41
50
63
75
76
31

Edison

Lebec

Maricopa

Oildale

Shafter

District Maximum 54
41
50
63
75
76
31

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum

PM10 Federal 24-hr 0
Federal 1-Hr Ozone 0

O3-1hr (ppb) 60
PM10 State 24-hr 24
State 1-Hr Ozone 0

O3-8hr (ppb) 54
PM2.5 Federal 2006 24-hr 24
Federal 2008 8-Hr Ozone 0

PM 10 (µg/m³) 131
PM2.5 Federal 1997 24-hr 3
Federal 1997 8-Hr Ozone 0

PM 2.5 (µg/m³) 86
State 1997 8-Hr Ozone 0
¹Some of the days over the standards shown above may be the result of “Natural Events” such as extreme wind episodes, or
“Exceptional Events” such as wildfires and would not count as violations of the federal standard.
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Friday, February 03, 2012 Page 1 of 1