PM10 24 Hour Average (µg/m3)

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

09/10

09/11

09/12

09/13

09/14

09/15

09/16

San Joaquin

Stockton-Hazelton

31

24

24

39

46

42

30

Manteca

31

26

24

47

47

52

39

Tracy-Airport

16

19

16

41

42

45

38

Stanislaus

Modesto-14th

38

32

27

55

54

56

51

Turlock

Merced

Merced-M St.

Merced-Coffee

Madera

Madera-City

66

50

44

74

91

90

89

Madera

Fresno

Fresno-SSP

Clovis

63

36

34

57

72

85

86

Fresno-Garland

65

37

35

48

65

79

80

Fresno-Foundry

Fresno-Pacific

Fresno-Drummond

Parlier

Tranquillity

Huron

Kings

Hanford

99

64

38

84

89

123

113

Corcoran

103

69

58

103

126

111

Tulare

Visalia, Church

83

59

51

54

81

98

101

Porterville

Ash Mountain-SNP

Lower Kaweah-SNP

Kern

Shafter

Oildale

74

78

58

53

72

77

87

Bakersfield-Gold

Bakersfield-Calif

Bakersfield-Muni

Edison

Arvin-DiGiorgio

Maricopa

Lebec

District Maximum

103

78

58

103

91

126

113

Maximum Measured

Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant

Maximum

Federal 2015 8-Hr Ozone

93

Federal 1997 24-hr PM2.5

0

Federal 2008 8-Hr Ozone

70

Federal 24-hr PM10

0

O3-1hr (ppb)

116

Federal 1997 8-Hr Ozone

16

State 1-Hr Ozone

36

O3-8hr (ppb)

100

Federal 1-Hr Ozone

0

State 1997 8-Hr Ozone

93

PM 10 (µg/m³)

149

Federal 2006 24-hr PM2.5

15

State 24-hr PM10

148

PM 2.5 (µg/m³)

63.5

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, September 17, 2021

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