Ozone Eight-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 52 70 62 54 54 44

Manteca

Tracy-Airport 53 50 65 60 55 51 49

Stanislaus

Modesto-14th 67 50 71 71 61 60 52

Turlock 69 56 73 73 64 62 60

Merced

Merced-M St.

Merced-Coffee 64 57 67 70 60 55 55

Madera

Madera-City 63 58 64 67 61 51 61

Madera 62 59 62 65 59 49

Fresno

Fresno-SSP 61 54 62 69 58 52 60

Clovis 67 56 68 75 67 61 70

Fresno-Garland 60 48 57 65 60 55 60

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 66 54 63 71 66 60 66

Parlier 71 52 63 77 71 67 72

Tranquillity 57 51 53 59 54 53 52

Huron

Kings

Hanford 66 52 62 66 63 58 66

Corcoran

Tulare

Visalia-Ashland 75 51 65 80 74 67 79

Porterville 77 46 67 78 75 72 77

Ash Mountain-SNP 73 50 60 71 77 76 79

Lower Kaweah-SNP 65 44 51 67 70 71 75

Kern

Shafter 68 49 60 77 64 63 64

Oildale 69 48 71 66 65 69

Bakersfield-Gold

Bakersfield-Calif 60 38 50 59 55 54 56

Bakersfield-Muni 73 44 61 68 62 61 67

Edison 63 70 69 67 67

Arvin-DiGiorgio 79 47 72 73 67 66 73

Maricopa 67 57 60 69 65 61 57

Lebec

District Maximum 79
59
73
80
77
76
79

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