PM25 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.

11/14 11/15 11/16 11/17 11/18 11/19 11/20

San Joaquin

Stockton-Hazelton 6 13 2 13 19 30

Manteca 4 10 5 4 7 17 37

Tracy-Airport 3 6 4 4 5 10 24

Stanislaus

Modesto-14th 7 14 8 4 7 22 40

Turlock 7 17 9 4 11 28 41

Merced

Merced-Coffee 8 18 7 6 35

Madera

Madera-City 8 15 9 6 13 19 26

Madera

Fresno

Fresno-SSP

Clovis 11 16 8 6 15 19 25

Fresno-Garland 14 17 8 4 16 29 26

Fresno-Drummond

Parlier

Tranquillity 4 10 10 4 4 11 18

Huron 6 8 5 6 6 13 17

Kings

Hanford 18 26 12 6 16 30 38

Corcoran 28 29 11 6 16 34 35

Tulare

Visalia, Church 15 17 10 5 21 24 31

Porterville 18 16 10 5 17 22 24

Ash Mountain-SNP 12 7 4 7 8 8 11

Lower Kaweah-SNP

Kern

Shafter

Oildale

Bakersfield-Calif 21 26 10 5 16 31 30

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec 14 6 5 4 7 6 4

District Maximum 28
29
12
7
21
34
41

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 1

O3-1hr (ppb) 126
PM10 State 24-hr 168
State 1-Hr Ozone 44

O3-8hr (ppb) 99
PM2.5 Federal 2006 24-hr 9
Federal 2008 8-Hr Ozone 92

PM 10 (µg/m³) 152
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 27

PM 2.5 (µg/m³) 51
State 1997 8-Hr Ozone 125
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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Tuesday, November 21, 2017 Page 1 of 1