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.

07/09 07/10 07/11 07/12 07/13 07/14 07/15

San Joaquin

Stockton-Hazelton 53 49 71 65 47 52 48

Manteca

Tracy-Airport 69 57 83 74 68 50 53

Stanislaus

Modesto-14th 58 59 75 74 57 58 59

Turlock 65 63 87 80 64 60 60

Merced

Merced-Coffee 61 61 72 75 68 64 53

Madera

Madera-City 65 66 67 67 70 62 50

Madera 61 60 63 66 66 58 50

Fresno

Fresno-SSP 68 72 67 67 74 69 61

Clovis 63 86 83 69 71 77 53

Fresno-Garland 69 80 70 66 68 67 51

Fresno-Drummond 67 79 65 67 67 70 50

Parlier 75 91 76 63 75 83 64

Tranquillity 64 67 69 71 72 56 61

Huron

Kings

Hanford 67 82 71 71 68 67 51

Corcoran

Tulare

Visalia, Church 81 95 71 72 75 85 62

Porterville 84 70 69 68 65 70 61

Ash Mountain-SNP

Lower Kaweah-SNP 61 74 80 64 51 87 81

Kern

Shafter 60 58 78 76 76 69 66

Oildale 65 62 78 78 74 76 64

Bakersfield-Calif 65 65 82 81 78 73 65

Bakersfield-Muni 64 64 80 76 76 71 67

Edison 66 72 92 88 90 77 83

Arvin-DiGiorgio 63 76 81 86 89 86 75

Maricopa 61 56 77 75 71 66 60

Lebec

District Maximum 84
95
92
88
90
87
83

Maximum Measured Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant Maximum

PM10 Federal 24-hr 2
Federal 1-Hr Ozone 0

O3-1hr (ppb) 109
PM10 State 24-hr 84
State 1-Hr Ozone 9

O3-8hr (ppb) 90
PM2.5 Federal 2006 24-hr 16
Federal 2008 8-Hr Ozone 21

PM 10 (µg/m³) 178
PM2.5 Federal 1997 24-hr 4
Federal 1997 8-Hr Ozone 1

PM 2.5 (µg/m³) 103
State 1997 8-Hr Ozone 41
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, July 16, 2018 Page 1 of 1