Daily Report

AQI by Site

AQI is determined using real-time data measured at each site. AQI is based on the pollutant that measured highest.

Factors such as site capabilities, seasonality, wildfire or wind events, and/or technical difficulties influence which

pollutant is used to determine AQI. The data in this report is preliminary and subject to change.

11/25

11/26

11/27

11/28

11/29

11/30

12/01

San Joaquin

Stockton-University

54 (PM25)

74 (PM25)

84 (PM25)

99 (PM25)

73 (PM25)

54 (PM25)

39 (PM25)

Manteca

28 (PM25)

48 (PM25)

66 (PM25)

81 (PM25)

59 (PM25)

36 (PM25)

14 (PM25)

Tracy-Airport

26 (O3-8)

31 (PM25)

49 (PM25)

31 (PM25)

31 (O3-8)

32 (O3-8)

Stanislaus

Modesto-14th

26 (O3-8)

69 (PM25)

75 (PM25)

93 (PM25)

71 (PM25)

48 (PM25)

29 (PM25)

Turlock

50 (PM25)

70 (PM25)

72 (PM25)

65 (PM25)

69 (PM25)

51 (PM25)

38 (PM25)

Merced

Merced-M St.

64 (PM25)

79 (PM25)

61 (PM25)

58 (PM25)

60 (PM25)

55 (PM25)

28 (PM25)

Merced-Coffee

52 (PM25)

59 (PM25)

52 (PM25)

40 (PM25)

54 (PM25)

48 (PM25)

33 (PM25)

Madera

Madera-City

67 (PM25)

60 (PM25)

48 (PM25)

31 (O3-8)

44 (PM25)

52 (PM25)

39 (PM25)

Madera

30 (O3-8)

27 (O3-8)

31 (O3-8)

32 (O3-8)

30 (O3-8)

34 (O3-8)

32 (O3-8)

Fresno

Fresno-SSP

28 (O3-8)

30 (O3-8)

28 (O3-8)

33 (O3-8)

Clovis

72 (PM25)

62 (PM25)

43 (PM25)

44 (PM25)

37 (PM25)

43 (PM25)

39 (PM25)

Fresno-Garland

87 (PM25)

81 (PM25)

58 (PM25)

63 (PM25)

48 (PM25)

54 (PM25)

47 (PM25)

Fresno-Foundry

69 (PM25)

60 (PM25)

68 (PM25)

50 (PM25)

Fresno-Pacific

74 (PM25)

64 (PM25)

54 (PM25)

60 (PM25)

49 (PM25)

Fresno-Drummond

52 (PM10)

49 (PM10)

60 (PM10)

58 (PM10)

42 (PM10)

43 (PM10)

32 (PM10)

Parlier

30 (O3-8)

31 (O3-8)

27 (O3-8)

31 (O3-8)

32 (O3-8)

29 (O3-8)

32 (O3-8)

Tranquillity

27 (O3-8)

29 (O3-8)

30 (O3-8)

32 (O3-8)

50 (PM25)

38 (PM25)

31 (O3-8)

Huron

29 (PM25)

38 (PM25)

37 (PM25)

25 (PM25)

42 (PM25)

31 (PM25)

18 (PM25)

Kings

Hanford

58 (PM25)

72 (PM25)

69 (PM25)

64 (PM25)

56 (PM25)

69 (PM25)

32 (O3-8)

Corcoran

54 (PM25)

64 (PM25)

71 (PM25)

52 (PM10)

51 (PM10)

67 (PM25)

37 (PM10)

Tulare

Visalia-Ashland

77 (PM25)

74 (PM25)

64 (PM25)

52 (PM25)

38 (PM25)

64 (PM25)

52 (PM25)

Porterville

35 (PM25)

43 (PM25)

31 (O3-8)

37 (O3-8)

45 (PM25)

47 (PM25)

Ash Mountain-SNP

32 (PM25)

32 (O3-8)

29 (O3-8)

34 (O3-8)

33 (O3-8)

34 (O3-8)

31 (O3-8)

Lower Kaweah-SNP

35 (O3-8)

37 (O3-8)

39 (O3-8)

38 (O3-8)

36 (O3-8)

31 (O3-8)

Kern

Shafter

30 (O3-8)

31 (O3-8)

30 (O3-8)

31 (O3-8)

36 (O3-8)

35 (O3-8)

Oildale

33 (O3-8)

34 (O3-8)

35 (O3-8)

42 (PM10)

39 (O3-8)

49 (PM10)

36 (O3-8)

Bakersfield-Gold

65 (PM25)

66 (PM25)

58 (PM25)

60 (PM25)

54 (PM10)

71 (PM25)

57 (PM25)

Bakersfield-Calif

55 (PM25)

62 (PM25)

54 (PM25)

57 (PM25)

39 (PM10)

63 (PM25)

42 (PM25)

Bakersfield-Muni

27 (O3-8)

24 (O3-8)

23 (O3-8)

22 (O3-8)

31 (O3-8)

28 (O3-8)

31 (O3-8)

Edison

31 (O3-8)

30 (O3-8)

33 (O3-8)

30 (O3-8)

37 (O3-8)

33 (O3-8)

32 (O3-8)

Arvin-DiGiorgio

33 (O3-8)

27 (O3-8)

28 (O3-8)

31 (O3-8)

38 (O3-8)

Maricopa

33 (O3-8)

31 (O3-8)

32 (O3-8)

36 (O3-8)

37 (O3-8)

35 (O3-8)

36 (O3-8)

Lebec

18 (PM25)

9 (PM25)

4 (PM25)

15 (PM25)

21 (PM25)

43 (PM25)

30 (PM25)

Maximum Measured

Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant

Maximum

Federal 2015 8-Hr Ozone

Federal 1997 24-hr PM2.5

O3-1hr (ppb)

109

Federal 2008 8-Hr Ozone

Federal 24-hr PM10

O3-8hr (ppb)

Federal 1997 8-Hr Ozone

State 1-Hr Ozone

PM 10 (µg/m³)

157

Federal 1-Hr Ozone

State 1997 8-Hr Ozone

PM 2.5 (µg/m³)

40.6

Federal 2006 24-hr PM2.5

State 24-hr PM10

165

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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Saturday, December 2, 2023

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