PM10 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

Manteca

Tracy-Airport 15 19 29 31 36 28 26

Stanislaus

Modesto-14th 22 24 34 44 53 49 29

Turlock

Merced

Merced-Coffee

Madera

Madera-City 47 43 106 91 66

Madera

Fresno

Fresno-SSP

Clovis 52 73 91 60 56

Fresno-Garland 31 31 40 62 71 60 59

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford 52 44 67 118 109 90 72

Corcoran 41 36 54 99 97 74 50

Tulare

Visalia, Church 65 50 62 82 98 80 48

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale 48 40 55 91 109 78 49

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 65
50
67
118
109
91
72

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
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