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.

09/18 09/19 09/20 09/21 09/22 09/23 09/24

San Joaquin

Stockton-Hazelton

Manteca 30 43 61 63 36 20 46

Tracy-Airport 26 39 62 52 38 20 37

Stanislaus

Modesto-14th 32 43 66 77 41 16 48

Turlock

Merced

Merced-Coffee

Madera

Madera-City 70 80 100 98 92 49 75

Madera

Fresno

Fresno-SSP

Clovis 59 71 87 71 47 77

Fresno-Garland 55 62 81 81 70 46 61

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford 95 95 120 140 98 59 101

Corcoran 82 85 111 139 113 58 120

Tulare

Visalia, Church 98 93 90 91 92 71 92

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale 82 89 117 121 107 62 64

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 98
95
120
140
113
71
120

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) 121
PM10 State 24-hr 152
State 1-Hr Ozone 35

O3-8hr (ppb) 90
PM2.5 Federal 2006 24-hr 21
Federal 2008 8-Hr Ozone 66

PM 10 (µg/m³) 153
PM2.5 Federal 1997 24-hr 4
Federal 1997 8-Hr Ozone 5

PM 2.5 (µg/m³) 103
State 1997 8-Hr Ozone 100
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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Tuesday, September 25, 2018 Page 1 of 1