Ozone One-Hour Maximum (PPB)

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

04/11 04/12 04/13 04/14 04/15 04/16 04/17

San Joaquin

Stockton-University 54 42 53 46 42 41 48

Manteca

Tracy-Airport 53 34 49 39 36 37

Stanislaus

Modesto-14th 64 50 62 49 48 49 55

Turlock 70 43 61 51 49 53 55

Merced

Merced-M St.

Merced-Vierra 59 46 59 49 47 48 51

Madera

Madera-City 62 54 61 51 49 48 54

Madera 62 53 61 49 48 50 53

Fresno

Fresno-SSP 53 59 48 48 46 55

Clovis 77 60 61 47 51 47 54

Fresno-Garland 61 50 51 41 44 42 49

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 70 56 60 48 50 52 55

Parlier 71 60 62 51 54 62 70

Tranquillity 50 46 51 46 42 41 44

Huron

Kings

Hanford 74 52 59 52 52 53 58

Corcoran

Tulare

Visalia-Ashland 70 59 53 49 50 59 60

Porterville 69 68 60 56 51 59 67

Ash Mountain-SNP 49 64 51 49 42 36 44

Lower Kaweah-SNP 50 67 69 69 53 65 48

Kern

Shafter 69 68 62 53 51 59 61

Oildale 72 67 62 56 52 59 67

Bakersfield-Gold

Bakersfield-Calif 78 65 59 54 52 59 68

Bakersfield-Muni 75 62 59 54 49 56 66

Edison 82 66 60 55 53 75

Arvin-DiGiorgio 63 63 50 54 68 77

Maricopa 71 69 65 41 53 55 65

Lebec

District Maximum 82
69
69
69
54
68
77

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum Federal 2015 8-Hr Ozone 1
Federal 1997 24-hr PM2.5 0

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

O3-1hr (ppb) 82
Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 0

O3-8hr (ppb) 71
Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 1

PM 10 (µg/m³) 72
Federal 2006 24-hr PM2.5 0
State 24-hr PM10 6

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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Thursday, April 18, 2024 Page 1 of 1