PM25 24 Hour Average (µg/m3)

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

06/19 06/20 06/21 06/22 06/23 06/24 06/25

San Joaquin

Stockton-University 3.3 7.7 9.2 7.2 6.5

Manteca 2.7 5.0 4.0 8.2 9.2 7.5 6.8

Tracy-Airport 1.0 1.0 1.7 3.4 9.2 6.4 7.0

Stanislaus

Modesto-14th 7.5 8.9 9.4 10.9 12.3 9.4 10.9

Turlock 3.5 5.4 6.0 9.5 8.4 7.7 7.5

Merced

Merced-M St. 3.2 5.6 6.6 6.7 6.5 7.7 4.5

Merced-Coffee 4.4 6.0 7.0 8.7 7.1 7.5 5.3

Madera

Madera-City 2.9 5.1 6.7 8.5 7.1 10.0 7.1

Madera

Fresno

Fresno-SSP

Clovis 2.6 5.0 7.2 6.5 5.4 14.5 5.2

Fresno-Garland 4.6 6.4 9.9 11.0 7.5 14.7 8.8

Fresno-Foundry 4.0 6.9 10.5 12.3 x 11.3 16.6 8.8

Fresno-Pacific 6.8 9.0 11.2 11.0 10.6 19.1 11.5

Fresno-Drummond

Parlier

Tranquillity 3.8 5.8 4.9 7.3 4.7 5.9 4.2

Huron 5.7 6.5 8.2 9.1 7.4 9.2 7.0

Kings

Hanford 3.3 5.9 11.1 10.6 9.2 9.2 6.0

Corcoran 4.9 8.1 9.9 7.0 7.2 8.9 7.2

Tulare

Visalia-Ashland 8.7 8.2 13.2 7.1 11.9 15.5 10.1

Porterville 6.7 5.0 10.2 5.0 7.1 10.2 8.5

Ash Mountain-SNP 5.5 6.6 7.0 4.0 5.5 8.1 8.7

Lower Kaweah-SNP

Kern

Shafter

Oildale

Bakersfield-Gold 5.0 7.6 11.3 8.2 12.5 x 8.9 8.5

Bakersfield-Calif 4.2 9.5 13.5 11.3 13.7 x 12.1 9.5

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec 2.3 4.9 2.9 2.8 11.0 8.5 3.9

District Maximum 8.7
9.5
13.5
12.3
13.7
19.1
11.5

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum Federal 2015 8-Hr Ozone 15
Federal 1997 24-hr PM2.5 0

Federal 2008 8-Hr Ozone 9
Federal 24-hr PM10 0

O3-1hr (ppb) 94
Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 0

O3-8hr (ppb) 83
Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 15

PM 10 (µg/m³) 152
Federal 2006 24-hr PM2.5 26
State 24-hr PM10 87

PM 2.5 (µg/m³) 53.9
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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Sunday, June 26, 2022 Page 1 of 1