Ozone Eight-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.

06/08 06/09 06/10 06/11 06/12 06/13 06/14

San Joaquin

Stockton-Hazelton 42 63 68 43 44

Manteca

Tracy-Airport 40 57 70 69 74 43 46

Stanislaus

Modesto-14th 46 61 70 76 80 53

Turlock 48 58 64 69 79 56 55

Merced

Merced-Coffee 50 61 63 67 73 64 57

Madera

Madera-City 53 63 70 73 70 70 55

Madera 53 61 77 74 76 70 55

Fresno

Fresno-SSP 50 59 69 73 65 66 50

Clovis 59 67 69 72 70 77 56

Fresno-Garland 56 63 69 80 66 70 53

Fresno-Drummond 56 63 69 76 65 69 52

Parlier 61 73 75 77 79 74 55

Tranquillity 52 58 62 68 71 55 49

Huron

Kings

Hanford 56 64 73 74 71 65 53

Corcoran

Tulare

Visalia, Church 61 68 69 71 73 66 51

Porterville 38 67 68 52

Ash Mountain-SNP 57 63 58 58 57 70 61

Lower Kaweah-SNP

Kern

Shafter 60 65 61 68 62 58 52

Oildale 57 65 66

Bakersfield-Calif 66 75 76 78 69 71 62

Bakersfield-Muni 60 67 70 66 63 61 53

Edison 63 64 71 69 64 67 55

Arvin-DiGiorgio 58 57 64 60 61 62 54

Maricopa 56 71 73 64 72 64 55

Lebec

District Maximum 66
75
77
80
80
77
62

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) 95
PM10 State 24-hr 22
State 1-Hr Ozone 1

O3-8hr (ppb) 85
PM2.5 Federal 2006 24-hr 10
Federal 2008 8-Hr Ozone 8

PM 10 (µg/m³) 99
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 1

PM 2.5 (µg/m³) 53
State 1997 8-Hr Ozone 16
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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Saturday, June 15, 2019 Page 1 of 1