Ozone Eight-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 45 56 50 48 53 48 42

Manteca

Tracy-Airport 41 47 48 45 58 43 36

Stanislaus

Modesto-14th 55 62 66 60 61 52 46

Turlock 60 69 73 66 67 54 49

Merced

Merced-M St.

Merced-Vierra 60 63 55 68 57 52

Madera

Madera-City 53 66 67 61 69 54 52

Madera 52 65 64 61 70 55 53

Fresno

Fresno-SSP 47 60 56 57 67 54 52

Clovis 71 83 66 69 56 53

Fresno-Garland 49 64 80 62

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 50 67 79 63 70 56 54

Parlier 57 76 83 68 74 57 57

Tranquillity 46 59 54 57 67 53 49

Huron

Kings

Hanford 48 66 71 66 72 59 56

Corcoran

Tulare

Visalia-Ashland 55 77 81 66 75 61 61

Porterville 61 79 x 75 61 76 62 63

Ash Mountain-SNP 69 79 89 74 83 72 67

Lower Kaweah-SNP 61 63 80 66 74 66 62

Kern

Shafter 57 78 x 65 57 71 60 55

Oildale 59 78 x 79 59 75 66 62

Bakersfield-Gold

Bakersfield-Calif 59 79 x 65 61 75 64 60

Bakersfield-Muni

Edison 60 81 x 85 65 77 67 64

Arvin-DiGiorgio 61 79 x 78 67 78 65 60

Maricopa 49 66 69 58 68 60 54

Lebec

District Maximum 69
81
89
74
83
72
67

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