Daily Report

PM10 24 Hour Average (µg/m³)

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

10/02 10/03 10/04 10/05 10/06 10/07 10/08

San Joaquin

Stockton-University 47 58 41

Manteca 63 59 45 57 57 45 44

Tracy-Airport 56 43 34 41 36 40 35

Stanislaus

Modesto-14th 78 69 43 51 53 45 48

Turlock 111 77 60 68 66 52 60

Merced

Merced-M St. 122 91 58 68 81 61 85

Merced-Vierra

Madera

Madera-City 136 102 61 76 90 92 87

Madera

Fresno

Fresno-SSP

Clovis 114 92 58 62 88 86 89

Fresno-Garland 114 91 65 57 87 85 75

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 140 103 77 85 112 109 100

Parlier

Tranquillity

Huron

Kings

Hanford 192x 108 80 118 122 125 120

Corcoran 150 122 73 94 111 108 115

Tulare

Visalia-Ashland 115 103 59 89 101

Porterville

Ash Mountain-SNP

Kern

Shafter

Oildale 96 91 49 55 71 73 74

Bakersfield-Gold 113 106 65 68 83 88 100

Bakersfield-Calif 98 98 57 58 66 77 77

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 192 122 80 118 122 125 120
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 52
Federal 1997 24-Hr PM2.5 0
  Federal 2008 8-Hr Ozone 28
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 52
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 128
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!
Friday, October 9, 2026 Page 1 of 1