Daily Report

PM2.5 24 Hour Average (µg/m³)

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

08/05

08/06

08/07

08/08

08/09

08/10

08/11

San Joaquin

Stockton-University

8.3x

6.5x

6.0x

7.9x

9.4x

10.4x

11.4x

Manteca

9.3x

6.6x

5.9x

6.8x

9.2x

11.5x

11.0x

Tracy-Airport

8.1x

6.0x

5.9x

5.3x

7.5x

9.8x

11.0x

Stanislaus

Modesto-14th

8.6x

5.9x

6.5x

6.7x

7.6x

10.1x

11.2x

Turlock

10.4x

9.0x

8.0x

9.1x

10.0x

13.0x

14.1x

Merced

Merced-M St.

14.7x

9.9x

7.9x

9.3x

10.5x

10.1x

14.3x

Merced-Vierra

17.4x

12.0x

9.2x

11.6x

11.8x

12.4x

14.7x

Madera

Madera-City

16.6x

14.4x

7.3x

8.7x

10.0x

13.3x

16.2x

Madera

Fresno

Fresno-SSP

Clovis

18.0x

14.4x

8.8x

11.1x

11.9x

12.7x

14.8x

Fresno-Garland

17.9x

13.4x

9.0x

10.1x

18.4x

15.2x

19.7x

Fresno-Foundry

17.8x

13.6x

9.8x

11.5x

10.2x

12.7x

14.8x

Fresno-Pacific

18.6x

13.1x

8.0x

10.3x

10.5x

14.7x

16.0x

Fresno-Drummond

Parlier

Tranquillity

7.0x

6.3x

6.1x

6.0x

8.5x

10.7x

Huron

11.8x

8.9x

9.6x

9.7x

11.5x

8.9x

12.1x

Kings

Hanford

20.2x

13.3x

12.0x

11.4x

13.2x

13.9x

15.0x

Corcoran

20.7x

13.4x

11.7x

14.9x

14.4x

14.6x

16.7x

Tulare

Visalia-Ashland

15.5x

15.2x

12.8x

14.6x

14.3x

11.3x

Porterville

11.5x

14.2x

11.7x

7.7x

9.0x

8.1x

4.6

Ash Mountain-SNP

14.5x

14.7x

13.9x

9.7x

10.3x

9.5x

7.8

Kern

Shafter

Oildale

Bakersfield-Gold

10.8x

10.6x

10.7x

7.3x

7.2x

6.1x

9.7x

Bakersfield-Calif

12.6x

13.4x

14.0x

9.6x

11.6x

10.9x

11.0x

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

19.4x

12.5x

11.4x

9.5x

6.4x

8.0

6.9

District Maximum

20.7

15.2

14.0

14.9

18.4

15.2

19.7

Maximum Measured

Value for This Year

Pollutant	Maximum
O3-1hr (ppb)	98
O3-8hr (ppb)	84
PM 10 (µg/m³)	116
PM 2.5 (µg/m³)	49.5

Unofficial Days Over the Federal and State Standards¹

Federal 2015 8-Hr Ozone	35	Federal 1997 24-Hr PM2.5	0
Federal 2008 8-Hr Ozone	16	Federal 24-Hr PM10	0
Federal 1997 8-Hr Ozone	0	State 1-Hr Ozone	5
Federal 1-Hr Ozone	0	State 1997 8-Hr Ozone	0
Federal 2006 24-Hr PM2.5	14	State 24-Hr PM10	73

¹Data affected by smoke, high winds, fireworks, 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, August 12, 2026

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