Daily Report

PM2.5 24 Hour Average (µg/m³)

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

10/26

10/27

10/28

10/29

10/30

10/31

11/01

San Joaquin

Stockton-University

6.5

5.3

9.5x

13.3x

14.0x

4.3

2.9

Manteca

2.8

3.4

4.7x

Tracy-Airport

5.0

4.5

3.5

4.5

5.5

2.6

1.7

Stanislaus

Modesto-14th

6.7

4.6

6.9x

11.1x

10.7x

5.4

4.1

Turlock

8.2

3.9

6.6x

7.1x

8.7x

4.9

3.5

Merced

Merced-M St.

10.3

4.4

10.7x

11.9x

10.4x

5.8

5.1

Merced-Vierra

9.1

5.3

10.9x

11.0x

10.7x

7.2

6.3

Madera

Madera-City

10.5

4.6

11.4x

13.3x

11.5x

10.0

3.7

Madera

Fresno

Fresno-SSP

Clovis

10.6

5.6x

11.3x

16.7x

17.1x

11.5

5.7

Fresno-Garland

14.0

6.2x

13.6x

22.0x

21.0x

11.5

6.9

Fresno-Foundry

16.8

7.2x

12.3x

19.8x

20.2x

8.4

5.5

Fresno-Pacific

14.0

4.4x

10.6x

20.7x

21.1x

9.6

4.3

Fresno-Drummond

Parlier

Tranquillity

Huron

6.8

4.2

5.6

6.5

9.4x

4.2

2.3

Kings

Hanford

21.3

5.1

9.9x

18.7x

29.8x

10.2

4.1

Corcoran

24.3

7.0

10.2x

16.9x

21.3x

5.4

4.7

Tulare

Visalia-Ashland

18.1

9.9x

13.5x

29.0x

28.1x

11.3

7.1

Porterville

18.1

18.0x

17.9x

25.9x

19.8x

7.5

3.1

Ash Mountain-SNP

Kern

Shafter

Oildale

Bakersfield-Gold

19.5

16.7

16.8x

24.3x

19.9x

8.2

5.4

Bakersfield-Calif

21.1

15.7

13.9x

20.9x

18.4x

9.3

4.2

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

9.4

11.0

11.5x

9.7x

7.0x

2.5

2.8

District Maximum

24.3

18.0

17.9

29.0

29.8

11.5

7.1

Maximum Measured

Value for This Year

Pollutant	Maximum
O3-1hr (ppb)	101
O3-8hr (ppb)	84
PM 10 (µg/m³)	150
PM 2.5 (µg/m³)	49.5

Unofficial Days Over the Federal and State Standards¹

Federal 2015 8-Hr Ozone	53	Federal 1997 24-Hr PM2.5	0
Federal 2008 8-Hr Ozone	29	Federal 24-Hr PM10	0
Federal 1997 8-Hr Ozone	0	State 1-Hr Ozone	15
Federal 1-Hr Ozone	0	State 2005 8-Hr Ozone	53
Federal 2006 24-Hr PM2.5	14	State 24-Hr PM10	143

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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Monday, November 2, 2026

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