Daily Report

Ozone One-Hour Maximum (PPB)

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

06/25 06/26 06/27 06/28 06/29 06/30 07/01

San Joaquin

Stockton-University 41 27 38 40 46 46 47

Manteca

Tracy-Airport 43 41 39 36 40 46 42

Stanislaus

Modesto-14th 58 35 43 44 46 56 59

Turlock 62 37 43 44 46 59 60

Merced

Merced-M St.

Merced-Vierra 58 42 45 42 49 50 51

Madera

Madera-City 61 43 48 45 53 51 54

Madera 58 48 48 46 54 50 55

Fresno

Fresno-SSP 58 48 47 47 53 51 53

Clovis 61 52 47 51 52 64 55

Fresno-Garland 57 52 47 48 53 50

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond 61 56 47 51 53 56 55

Parlier 65 58 45 52 49 63 56

Tranquillity 55 41 41 43 51 46 53

Huron

Kings

Hanford 64 49 43 51 49 49 59

Corcoran

Tulare

Visalia-Ashland 66 60 44 54 49 62 61

Porterville 75 62 43 54 54 56 59

Ash Mountain-SNP 78 65 43 56 56 67 68

Kern

Shafter 67 60 47 54 56 52 47

Oildale 67 63 49 56 55 58 51

Bakersfield-Gold

Bakersfield-Calif 65 60 45 53 54 54 50

Bakersfield-Muni 63 57 46 52 51 52 49

Edison 69 66 53 60 59 59 59

Arvin-DiGiorgio 60 58 47 53 56 53 56

Maricopa 65 52 40 50 52 51 56

Lebec

District Maximum 78 66 53 60 59 67 68
Maximum Measured
Value for This Year
 
PollutantMaximum
O3-1hr (ppb)98
O3-8hr (ppb)84
PM 10 (µg/m³)94
PM 2.5 (µg/m³)49.5
Unofficial Days Over the Federal and State Standards¹
 
Federal 2015 8-Hr Ozone 22
Federal 1997 24-Hr PM2.5 0
  Federal 2008 8-Hr Ozone 9
Federal 24-Hr PM10 0
  Federal 1997 8-Hr Ozone 3
State 1-Hr Ozone 4
  Federal 1-Hr Ozone 0
State 1997 8-Hr Ozone 3
  Federal 2006 24-Hr PM2.5 14
State 24-Hr PM10 47
¹Data affected by smoke, high winds, fireworks, 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.healthairliving.com and become a part of the solution!
Thursday, July 2, 2026 Page 1 of 1