PM25 24 Hour Average (µg/m3)

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

09/09 09/10 09/11 09/12 09/13 09/14 09/15

San Joaquin

Stockton-Hazelton 3.6 4.0 5.0 11.0 8.5 8.1 4.4

Manteca

Tracy-Airport 3.2 4.0 5.5 8.0 7.9 5.9 3.9

Stanislaus

Modesto-14th 3.2 3.7 4.5 9.0 11.5 10.0 2.9

Turlock 5.2 6.2 8.8 12.0 14.5 14.0 5.4

Merced

Merced-Coffee 5.0 5.0 6.9 9.8 10.9 9.9 5.3

Madera

Madera-City 7.0 19.1 19.6 16.2

Madera

Fresno

Fresno-SSP

Clovis 8.4 11.4 13.9 13.9 10.0

Fresno-Garland 5.0 3.5 5.4 9.5 11.0 12.0 9.4

Fresno-Drummond

Parlier

Tranquillity 4.0 3.5 5.0 6.7 7.0 7.5 6.0

Huron 3.7 4.0 5.0 7.0 7.5 10.5 5.7

Kings

Hanford 6.4 5.2 8.0 16.1 16.3 17.3 11.6

Corcoran 6.0 11.0 14.0 15.0 14.4 11.1

Tulare

Visalia, Church 7.9 6.0 8.8 12.5 17.5 15.4 9.0

Porterville 6.2 6.0 7.7 10.0 11.3 8.3 6.4

Ash Mountain-SNP 6.7 8.0 8.0 6.0 11.0 10.1 7.6

Lower Kaweah-SNP

Kern

Shafter

Oildale

Bakersfield-Calif 7.7 6.2 7.5 12.0 14.0 13.9 9.1

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec 4.0 6.5 5.7 7.2 8.5 6.3

District Maximum 7.9
8.0
11.0
16.1
19.1
19.6
16.2

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) 110
PM10 State 24-hr 76
State 1-Hr Ozone 20

O3-8hr (ppb) 93
PM2.5 Federal 2006 24-hr 10
Federal 2008 8-Hr Ozone 57

PM 10 (µg/m³) 129
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 9

PM 2.5 (µg/m³) 53.0
State 1997 8-Hr Ozone 79
¹Data affected by smoke, high winds, fireworks, and etc. and which exceeded a federal standard are denoted with
an ‘x’ in the table above. Values marked with an ‘x’ are not included in the tallies above.
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Monday, September 16, 2019 Page 1 of 1