Daily Report

PM10 24 Hour Average (µg/m³)

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

08/22 08/23 08/24 08/25 08/26 08/27 08/28

San Joaquin

Stockton-University 12 13 24 40 22 40 36

Manteca 25 18 35 36 31 48 40

Tracy-Airport 20 18 34 36 36 47 17

Stanislaus

Modesto-14th 24 19 39 33 29 58 48

Turlock 30 31 51 46 41 104 65

Merced

Merced-M St. 42 34 52 65 62 113 65

Merced-Vierra

Madera

Madera-City 41 34 70 73 68 145 103

Madera

Fresno

Fresno-SSP

Clovis 29 27 66 60 57 116 116

Fresno-Garland 35 25 54 54 47 108 105

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 41 33 87 79 68 150 128

Parlier

Tranquillity

Huron

Kings

Hanford 73 46 73 98 95 129 130

Corcoran 64 48 54 74 72 76 95

Tulare

Visalia-Ashland 68 45 84 95 94 133 109

Porterville

Ash Mountain-SNP

Kern

Shafter

Oildale 69 57 45 71 70 90 87

Bakersfield-Gold 71 61 55 77 78 96 93

Bakersfield-Calif 59 54 63 59 81 89

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 73 61 87 98 95 150 130
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 9
  Federal 1-Hr Ozone 0
State 2005 8-Hr Ozone 43
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 89
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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Saturday, August 29, 2026 Page 1 of 1