Daily Report

PM10 24 Hour Average (µg/m³)

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

08/02 08/03 08/04 08/05 08/06 08/07 08/08

San Joaquin

Stockton-University 25 32 28 23 21 20 17

Manteca 24 31 38 28 28 29 23

Tracy-Airport 20 38 44 38 37 33 29

Stanislaus

Modesto-14th 21 34 34 32 28 29 25

Turlock 25 41 43 43 37 37 34

Merced

Merced-M St. 30 47 53 60 59 46 47

Merced-Vierra

Madera

Madera-City 37 79 72 74 75 53 52

Madera

Fresno

Fresno-SSP

Clovis 32 51 67 77 70 52 54

Fresno-Garland 32 44 58 67 63 49 50

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 37 63 96 97 83 58 64

Parlier

Tranquillity

Huron

Kings

Hanford 30 67 59 79 77 75 58

Corcoran 35 49 55 64 50 49 51

Tulare

Visalia-Ashland 40 56 68 81 82 73 70

Porterville

Ash Mountain-SNP

Kern

Shafter

Oildale 36 39 50 50 61 62 44

Bakersfield-Gold 39 47 59 65 67 75 57

Bakersfield-Calif 40 50 50 56 70 63 46

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 40 79 96 97 83 75 70
Maximum Measured
Value for This Year
 
PollutantMaximum
O3-1hr (ppb)98
O3-8hr (ppb)84
PM 10 (µg/m³)97
PM 2.5 (µg/m³)49.5
Unofficial Days Over the Federal and State Standards¹
 
Federal 2015 8-Hr Ozone 35
Federal 1997 24-Hr PM2.5 0
  Federal 2008 8-Hr Ozone 16
Federal 24-Hr PM10 0
  Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 5
  Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 0
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 70
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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Sunday, August 9, 2026 Page 1 of 1