PM10 24 Hour Average (µg/m3)

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

Manteca 25 33 27 29 37 32 17

Tracy-Airport 22 23 30 31 32 22 14

Stanislaus

Modesto-14th 22 25 27 25 30 25 15

Turlock

Merced

Merced-Coffee

Madera

Madera-City 43 43 40 51 46 42 27

Madera

Fresno

Fresno-SSP

Clovis 32 55 52 55 49 37 28

Fresno-Garland 34 37 41 41 41 35 29

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford 51 60 47 51 56 49 46

Corcoran 84 55 56 67 67 54 42

Tulare

Visalia, Church 57 58 49 57 56 51 41

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale 50 46 56 56 48 48 46

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 84
60
56
67
67
54
46

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