Daily Report

PM10 24 Hour Average (µg/m³)

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

10/07 10/08 10/09 10/10 10/11 10/12 10/13

San Joaquin

Stockton-University 58 41 57 46 28 45 36

Manteca 45 44 47 32 26 37 40

Tracy-Airport 40 35 46 28 21 31 39

Stanislaus

Modesto-14th 45 48 50 34 26 38 42

Turlock 52 60 63 40 33 47 61

Merced

Merced-M St. 61 85 66 44 33 52 65

Merced-Vierra

Madera

Madera-City 92 87 119 43 62 52 68

Madera

Fresno

Fresno-SSP

Clovis 86 89 127 64 62 46 62

Fresno-Garland 85 75 108 48 62 42 63

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 109 100 136 56 83 59 73

Parlier

Tranquillity

Huron

Kings

Hanford 125 120 113 66 84 60 74

Corcoran 108 115 119 75 74 42 88

Tulare

Visalia-Ashland

Porterville

Ash Mountain-SNP

Kern

Shafter

Oildale 73 74 74 37 68 27 43

Bakersfield-Gold 88 100 97 57 84 38 59

Bakersfield-Calif 77 77 77 47 66 31 53

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 125 120 136 75 84 60 88
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 53
Federal 1997 24-Hr PM2.5 0
  Federal 2008 8-Hr Ozone 29
Federal 24-Hr PM10 0
  Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 15
  Federal 1-Hr Ozone 0
State 2005 8-Hr Ozone 53
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 133
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.
Make one change for clean air! Visit www.valleyair.org/hal and become a part of the solution!
Wednesday, October 14, 2026 Page 1 of 1