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.

09/19 09/20 09/21 09/22 09/23 09/24 09/25

San Joaquin

Stockton-Hazelton

Manteca 28 25 20 30 44 26 41

Tracy-Airport 17 7 10 26 35 15 35

Stanislaus

Modesto-14th 30 25 20 13

Turlock

Merced

Merced-Coffee

Madera

Madera-City 48 43 16 29 39 27 43

Madera

Fresno

Fresno-SSP

Clovis 47 18 34 37 24 46

Fresno-Garland 50 36 18 28 33 27 39

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford 64 50 22 36 47 45 59

Corcoran 90 68 34 42 58 58 61

Tulare

Visalia, Church 69 63 35 34 47 39 53

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale 62 69 24 35 38 36 53

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 90
69
35
42
58
58
61

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) 113
PM10 State 24-hr 122
State 1-Hr Ozone 39

O3-8hr (ppb) 99
PM2.5 Federal 2006 24-hr 8
Federal 2008 8-Hr Ozone 78

PM 10 (µg/m³) 133
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 25

PM 2.5 (µg/m³) 51
State 1997 8-Hr Ozone 105
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 26, 2017 Page 1 of 1