PM10 24 Hour Average (µg/m3)

The information in this report is based on preliminary data and is subject to change.

01/22 01/23 01/24 01/25 01/26 01/27 01/28

San Joaquin

Stockton-Hazelton

Manteca 15 22 15 23 19 14 12

Tracy-Airport 10 13 12 16 8 12 14

Stanislaus

Modesto-14th 13 24 17 29 23 13 15

Turlock

Merced

Merced-Coffee

Madera

Madera-City 15 10 26 31 17 14 18

Madera

Fresno

Fresno-SSP

Clovis 19 21 46 36 15 35 22

Fresno-Garland 27 20 33 39 21 18 23

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford 26 22 37 35 27 26 29

Corcoran 23 17 35 32 25 23 23

Tulare

Visalia, Church 26 27 42 37 21 20 26

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale 18 19 30 18 19

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum 27
27
46
39
27
35
29

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) 49
PM10 State 24-hr 0
State 1-Hr Ozone 0

O3-8hr (ppb) 46
PM2.5 Federal 2006 24-hr 1
Federal 2008 8-Hr Ozone 0

PM 10 (µg/m³) 47
PM2.5 Federal 1997 24-hr 0
Federal 1997 8-Hr Ozone 0

PM 2.5 (µg/m³) 39
State 1997 8-Hr Ozone 0
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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Wednesday, January 29, 2020 Page 1 of 1