Ozone Eight-Hour Maximum (PPB)

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

01/21

01/22

01/23

01/24

01/25

01/26

01/27

San Joaquin

Stockton-University

34

28

25

28

22

26

28

Manteca

Tracy-Airport

33

33

29

24

31

30

31

Stanislaus

Modesto-14th

34

32

30

29

34

26

30

Turlock

31

27

25

30

35

30

32

Merced

Merced-M St.

Merced-Coffee

19

28

33

33

24

38

28

Madera

Madera-City

18

26

35

32

33

37

37

Madera

18

29

35

34

38

39

41

Fresno

Fresno-SSP

15

25

34

33

30

37

38

Clovis

30

31

29

36

Fresno-Garland

12

27

28

29

26

31

32

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond

9

28

31

30

26

34

35

Parlier

15

34

36

35

36

38

40

Tranquillity

27

27

29

32

38

34

41

Huron

Kings

Hanford

23

25

28

33

31

33

33

Corcoran

Tulare

Visalia, Church

Porterville

29

37

35

39

39

39

37

Ash Mountain-SNP

32

37

40

37

39

41

41

Lower Kaweah-SNP

45

46

46

43

41

42

44

Kern

Shafter

23

28

31

34

34

33

34

Oildale

21

34

35

34

38

37

37

Bakersfield-Gold

Bakersfield-Calif

21

27

28

24

27

Bakersfield-Muni

20

27

28

28

31

31

Edison

22

33

31

29

36

37

37

Arvin-DiGiorgio

28

29

37

39

38

37

39

Maricopa

34

35

39

43

47

43

44

Lebec

District Maximum

45

46

46

43

47

43

44

Maximum Measured

Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant

Maximum

Federal 2015 8-Hr Ozone

0

Federal 1997 24-hr PM2.5

0

Federal 2008 8-Hr Ozone

0

Federal 24-hr PM10

0

O3-1hr (ppb)

51

Federal 1997 8-Hr Ozone

0

State 1-Hr Ozone

0

O3-8hr (ppb)

48

Federal 1-Hr Ozone

0

State 1997 8-Hr Ozone

0

PM 10 (µg/m³)

79

Federal 2006 24-hr PM2.5

15

State 24-hr PM10

11

PM 2.5 (µg/m³)

53.9

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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Friday, January 28, 2022

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