Daily Report

PM10 24 Hour Average (µg/m³)

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

08/27 08/28 08/29 08/30 08/31 09/01 09/02

San Joaquin

Stockton-University 40 36 27 17 36 21 21

Manteca 48 40 21 20 30 23 22

Tracy-Airport 47 17 3 2 21

Stanislaus

Modesto-14th 58 48 23 19 33 26 19

Turlock 104 65 31 27 47 31 26

Merced

Merced-M St. 113 65 39 31 70 39 29

Merced-Vierra

Madera

Madera-City 145 103 44 36 74 51 41

Madera

Fresno

Fresno-SSP

Clovis 116 116 43 31 69 48 39

Fresno-Garland 108 105 45 30 60 50 35

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 150 128 58 32 80 62 49

Parlier

Tranquillity

Huron

Kings

Hanford 129 130 65 35 73 74 62

Corcoran 76 95 38 39 38 67 50

Tulare

Visalia-Ashland 133 109 63 41 75 70 64

Porterville

Ash Mountain-SNP

Kern

Shafter

Oildale 90 87 60 37 43 42 65

Bakersfield-Gold 96 93 68 43 54 51 71

Bakersfield-Calif 81 89 52 37 44

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 150 130 68 43 80 74 71
Maximum Measured
Value for This Year
 
PollutantMaximum
O3-1hr (ppb)101
O3-8hr (ppb)84
PM 10 (µg/m³)150
PM 2.5 (µg/m³)49.5
Unofficial Days Over the Federal and State Standards¹
 
Federal 2015 8-Hr Ozone 43
Federal 1997 24-Hr PM2.5 0
  Federal 2008 8-Hr Ozone 21
Federal 24-Hr PM10 0
  Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 8
  Federal 1-Hr Ozone 0
State 2005 8-Hr Ozone 43
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 93
¹Data affected by smoke, high winds, fireworks, 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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Thursday, September 3, 2026 Page 1 of 1