Ozone One-Hour Maximum (PPB)

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

06/17 06/18 06/19 06/20 06/21 06/22 06/23

San Joaquin

Stockton-University 37 43 43 57 81

Manteca

Tracy-Airport 34 38 44 43 58 53 73

Stanislaus

Modesto-14th 41 44 44 57 75 54 81

Turlock 45 44 46 56 78 58 81

Merced

Merced-M St.

Merced-Coffee 47 44 47 55 71 64 69

Madera

Madera-City 46 46 47 56 69 65 67

Madera 45 44 46 56 68 64 65

Fresno

Fresno-SSP 46 45 46 54 67 56 66

Clovis 49 47 47 57 72 60 77

Fresno-Garland 47 44 44 52 63 52 63

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 48 46 48 56 70 60 70

Parlier 51 45 50 60 86 57 68

Tranquillity 38 38 43 52 63 54 57

Huron

Kings

Hanford 50 44 50 60 73 58 69

Corcoran

Tulare

Visalia-Ashland 53 47 57 60 89 56 73

Porterville 51 52 61 66 89 50 74

Ash Mountain-SNP 51 51 55 67 81 57 63

Lower Kaweah-SNP 49 44 47 58 70 48 53

Kern

Shafter 49 46 58 64 83 50 67

Oildale 53 54 64 68 77 52

Bakersfield-Gold

Bakersfield-Calif 43 43 50 53 65 40 55

Bakersfield-Muni 50 49 58 62 76 46 68

Edison 71

Arvin-DiGiorgio 56 51 54 79 91 49 83

Maricopa 52 46 51 71 63 62

Lebec

District Maximum 56
54
64
79
91
65
83

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum Federal 2015 8-Hr Ozone 13
Federal 1997 24-hr PM2.5 0

Federal 2008 8-Hr Ozone 7
Federal 24-hr PM10 0

O3-1hr (ppb) 94
Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 0

O3-8hr (ppb) 83
Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 13

PM 10 (µg/m³) 152
Federal 2006 24-hr PM2.5 26
State 24-hr PM10 86

PM 2.5 (µg/m³) 53.9
¹Data affected by smoke, high winds, fireworks, and 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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Friday, June 24, 2022 Page 1 of 1