Ozone One-Hour Maximum (PPB)

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

06/10 06/11 06/12 06/13 06/14 06/15 06/16

San Joaquin

Stockton-University 51 63 53 54 61 53 46

Manteca

Tracy-Airport 47 51 56 53 63 46 41

Stanislaus

Modesto-14th 60 68 69 67 66 56 50

Turlock 64 75 78 76 72 58 53

Merced

Merced-M St.

Merced-Vierra 62 90 61 72 62 57

Madera

Madera-City 62 72 76 70 73 59 56

Madera 57 71 72 69 75 59 58

Fresno

Fresno-SSP 52 63 85 66 70 58 55

Clovis 77 99 74 73 59 56

Fresno-Garland 53 70 103 69

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 55 74 94 69 74 59 57

Parlier 63 86 96 72 78 61 61

Tranquillity 56 65 61 63 74 56 55

Huron

Kings

Hanford 52 69 77 69 77 62 60

Corcoran

Tulare

Visalia-Ashland 60 85 89 69 81 65 65

Porterville 67 92 x 84 65 79 65 71

Ash Mountain-SNP 79 90 97 83 94 75 75

Lower Kaweah-SNP 71 70 90 74 84 70 68

Kern

Shafter 66 91 x 71 64 82 65 63

Oildale 63 87 x 83 62 85 72 73

Bakersfield-Gold

Bakersfield-Calif 65 91 x 82 65 86 69 72

Bakersfield-Muni

Edison 66 86 x 95 73 85 72 74

Arvin-DiGiorgio 63 89 x 84 79 86 68 73

Maricopa 50 69 75 62 70 63 56

Lebec

District Maximum 79
92
103
83
94
75
75

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum Federal 2015 8-Hr Ozone 15
Federal 1997 24-hr PM2.5 0

Federal 2008 8-Hr Ozone 5
Federal 24-hr PM10 0

O3-1hr (ppb) 103
Federal 1997 8-Hr Ozone 1
State 1-Hr Ozone 1

O3-8hr (ppb) 89
Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 15

PM 10 (µg/m³) 78
Federal 2006 24-hr PM2.5 0
State 24-hr PM10 30

PM 2.5 (µg/m³) 32.2
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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Monday, June 17, 2024 Page 1 of 1