Ozone One-Hour Maximum (PPB)

The information in this report is based on preliminary data and is subject to change. The real-time PM10/PM2.5

monitoring equipment is used for air quality forecasting and trend analysis.

09/18 09/19 09/20 09/21 09/22 09/23 09/24

San Joaquin

Stockton-Hazelton 50 58 58 76 71 54 54

Manteca

Tracy-Airport 59 67 59 88 80 59 57

Stanislaus

Modesto-14th 55 61 60 94 84 51 65

Turlock 57 63 65 95 80 53 65

Merced

Merced-Coffee 61 65 79 75 80 51 61

Madera

Madera-City 58 63 79 78 71 72 57

Madera 59 64 78 79 71 71 60

Fresno

Fresno-SSP 59 64 77 85 80 76 66

Clovis 66 83 96 99 82 80

Fresno-Garland 61 68 84 93 94 85

Fresno-Drummond 62 68 80 91 88 90 81

Parlier 72 69 76 87 89 86 86

Tranquillity 55 59 59 68 70 58 65

Huron

Kings

Hanford 65 66 71 89 85 68 65

Corcoran

Tulare

Visalia, Church 70 68 75 82 85 69 70

Porterville 69 68 76 77 86 70 65

Ash Mountain-SNP 74 76 79 74 64 69 65

Lower Kaweah-SNP 75 78 79 75 47 60 65

Kern

Shafter 63 62 72 83 81 67 62

Oildale 69 67 77 87 82 68 62

Bakersfield-Calif 69 64 83 84 86 74 64

Bakersfield-Muni 68 61 81 80 85 71 58

Edison 90 80 89 100 100 87 71

Arvin-DiGiorgio 86 77 91 104 88 86 67

Maricopa 71 65 77 80 80 68 65

Lebec

District Maximum 90
80
91
104
100
90
86

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum

PM10 Federal 24-hr 0
Federal 1-Hr Ozone 0

O3-1hr (ppb) 121
PM10 State 24-hr 152
State 1-Hr Ozone 35

O3-8hr (ppb) 90
PM2.5 Federal 2006 24-hr 21
Federal 2008 8-Hr Ozone 66

PM 10 (µg/m³) 153
PM2.5 Federal 1997 24-hr 4
Federal 1997 8-Hr Ozone 5

PM 2.5 (µg/m³) 103
State 1997 8-Hr Ozone 100
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!
Tuesday, September 25, 2018 Page 1 of 1