Ozone One-Hour Maximum (PPB)

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

06/21 06/22 06/23 06/24 06/25 06/26 06/27

San Joaquin

Stockton-University 57 81 76 59 61 49

Manteca

Tracy-Airport 58 53 73 69 61 58 55

Stanislaus

Modesto-14th 75 54 81 77 66 67 59

Turlock 78 58 81 82 70 69 63

Merced

Merced-M St.

Merced-Coffee 71 64 69 76 63 58 58

Madera

Madera-City 69 65 67 72 65 58 66

Madera 68 64 65 71 62 56

Fresno

Fresno-SSP 67 56 66 83 62 63 68

Clovis 72 60 77 94 82 72 78

Fresno-Garland 63 52 63 77 67 62 65

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 70 60 70 82 82 67 78

Parlier 86 57 68 88 84 81 85

Tranquillity 63 54 57 66 64 58 61

Huron

Kings

Hanford 73 58 69 69 65 61 71

Corcoran

Tulare

Visalia-Ashland 89 56 73 86 85 76 90

Porterville 89 50 74 82 86 84 86

Ash Mountain-SNP 81 57 63 77 83 84 93

Lower Kaweah-SNP 70 48 53 72 76 77 86

Kern

Shafter 83 50 67 84 69 76 68

Oildale 77 52 76 73 72 73

Bakersfield-Gold

Bakersfield-Calif 65 40 55 65 60 62 62

Bakersfield-Muni 76 46 68 74 67 71 79

Edison 71 74 78 75 78

Arvin-DiGiorgio 91 49 83 79 77 84 88

Maricopa 71 63 62 70 70 67 62

Lebec

District Maximum 91
65
83
94
86
84
93

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum Federal 2015 8-Hr Ozone 17
Federal 1997 24-hr PM2.5 0

Federal 2008 8-Hr Ozone 11
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 17

PM 10 (µg/m³) 152
Federal 2006 24-hr PM2.5 26
State 24-hr PM10 87

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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Tuesday, June 28, 2022 Page 1 of 1