Ozone One-Hour Maximum (PPB)

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

01/21 01/22 01/23 01/24 01/25 01/26 01/27

San Joaquin

Stockton-University 37 35 39 36 31 41 32

Manteca

Tracy-Airport 35 36 35 30 34 39 35

Stanislaus

Modesto-14th 38 39 40 38 40 33 38

Turlock 37 39 35 38 41 39 46

Merced

Merced-M St.

Merced-Coffee 24 33 39 38 35 45 37

Madera

Madera-City 22 36 42 38 44 46 43

Madera 21 38 43 39 44 46 45

Fresno

Fresno-SSP 21 32 40 38 38 44 46

Clovis 37 39 36 46

Fresno-Garland 17 34 37 36 33 39 39

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 13 36 38 38 35 43 45

Parlier 25 39 39 41 41 44 47

Tranquillity 29 31 36 37 42 41 44

Huron

Kings

Hanford 32 35 38 41 42 42 46

Corcoran

Tulare

Visalia, Church

Porterville 38 43 42 43 45 48 44

Ash Mountain-SNP 35 40 42 41 43 45 44

Lower Kaweah-SNP 50 48 47 44 44 43 46

Kern

Shafter 35 36 38 41 43 42 47

Oildale 31 40 41 41 47 45 44

Bakersfield-Gold

Bakersfield-Calif 30 34 35 31 34

Bakersfield-Muni 27 36 37 44 42 39

Edison 33 40 35 35 42 41 46

Arvin-DiGiorgio 34 34 42 44 46 43 42

Maricopa 40 40 44 48 51 48 49

Lebec

District Maximum 50
48
47
48
51
48
49

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

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

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

O3-1hr (ppb) 51
Federal 1997 8-Hr Ozone 0
State 1-Hr Ozone 0

O3-8hr (ppb) 48
Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 0

PM 10 (µg/m³) 79
Federal 2006 24-hr PM2.5 15
State 24-hr PM10 11

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.
Make one change for clean air! Visit www.healthyairliving.com and become a part of the solution!
Friday, January 28, 2022 Page 1 of 1