Daily Report

AQI by Site

AQI is based on measured data at each site. Some sites measure only ozone or only PM-2.5. In summer only those sites

with ozone measurements estimate the AQI correctly, and in winter only those sites with PM-2.5 measurements estimate

the AQI correctly. The information in this report is based on preliminary data and is subject to change. The real-time PM-

10/PM-2.5 monitoring eqiupment is used for air quality forecasting and trend analysis.

09/19

09/20

09/21

09/22

09/23

09/24

09/25

San Joaquin

Stockton-Hazelton

33 (PM25)

27 (O3-8)

34 (O3-8)

35 (O3-8)

34 (O3-8)

38 (O3-8)

5 (CO)

Manteca

26 (PM10)

23 (PM10)

19 (PM10)

28 (PM10)

41 (PM10)

24 (PM10)

38 (PM10)

Tracy-Airport

37 (O3-8)

32 (O3-8)

34 (O3-8)

33 (O3-8)

35 (O3-8)

40 (O3-8)

Stanislaus

Modesto-14th

40 (O3-8)

33 (O3-8)

36 (O3-8)

41 (O3-8)

39 (O3-8)

40 (O3-8)

45 (O3-8)

Turlock

40 (O3-8)

31 (O3-8)

36 (O3-8)

41 (O3-8)

36 (O3-8)

40 (O3-8)

45 (O3-8)

Merced

Merced-Coffee

40 (O3-8)

32 (O3-8)

34 (O3-8)

42 (O3-8)

37 (O3-8)

42 (O3-8)

33 (PM25)

Madera

Madera-City

44 (O3-8)

40 (PM10)

37 (O3-8)

43 (O3-8)

39 (O3-8)

44 (O3-8)

47 (O3-8)

Madera

42 (O3-8)

35 (O3-8)

36 (O3-8)

41 (O3-8)

39 (O3-8)

43 (O3-8)

48 (O3-8)

Fresno

Fresno-SSP

45 (O3-8)

38 (O3-8)

40 (O3-8)

44 (O3-8)

42 (O3-8)

44 (O3-8)

49 (O3-8)

Clovis

42 (O3-8)

44 (PM10)

33 (O3-8)

36 (O3-8)

43 (O3-8)

44 (O3-8)

49 (O3-8)

Fresno-Garland

46 (O3-8)

40 (O3-8)

44 (O3-8)

46 (O3-8)

58 (O3-8)

Fresno-Drummond

42 (O3-8)

38 (O3-8)

35 (O3-8)

40 (O3-8)

39 (O3-8)

43 (O3-8)

46 (O3-8)

Parlier

46 (O3-8)

45 (O3-8)

39 (O3-8)

42 (O3-8)

43 (O3-8)

46 (O3-8)

54 (O3-8)

Tranquillity

41 (O3-8)

32 (O3-8)

37 (O3-8)

40 (O3-8)

36 (O3-8)

41 (O3-8)

44 (O3-8)

Huron

38 (PM25)

33 (PM25)

17 (PM25)

25 (PM25)

17 (PM25)

25 (PM25)

Kings

Hanford

55 (PM10)

46 (PM10)

39 (O3-8)

43 (O3-8)

44 (PM10)

46 (O3-8)

53 (PM10)

Corcoran

68 (PM10)

57 (PM10)

31 (PM10)

39 (PM10)

52 (PM10)

54 (PM10)

Tulare

Visalia, Church

58 (PM10)

61 (O3-8)

40 (O3-8)

42 (O3-8)

44 (O3-8)

47 (O3-8)

64 (O3-8)

Porterville

43 (O3-8)

45 (O3-8)

35 (O3-8)

38 (O3-8)

44 (O3-8)

48 (O3-8)

Ash Mountain-SNP

53 (PM25)

54 (O3-8)

42 (PM25)

50 (PM25)

55 (PM25)

53 (PM25)

67 (O3-8)

Lower Kaweah-SNP

43 (O3-8)

48 (O3-8)

38 (O3-8)

42 (O3-8)

46 (O3-8)

48 (O3-8)

58 (O3-8)

Kern

Shafter

43 (O3-8)

44 (O3-8)

39 (O3-8)

41 (O3-8)

49 (O3-8)

54 (O3-8)

Oildale

54 (PM10)

58 (PM10)

40 (O3-8)

43 (O3-8)

50 (O3-8)

64 (O3-8)

Bakersfield-Calif

48 (O3-8)

51 (O3-8)

42 (O3-8)

46 (O3-8)

61 (O3-8)

71 (O3-8)

Bakersfield-Muni

46 (O3-8)

37 (O3-8)

40 (O3-8)

41 (O3-8)

47 (O3-8)

51 (O3-8)

Edison

50 (O3-8)

38 (O3-8)

43 (O3-8)

44 (O3-8)

48 (O3-8)

61 (O3-8)

Arvin-DiGiorgio

44 (O3-8)

54 (O3-8)

38 (O3-8)

44 (O3-8)

46 (O3-8)

54 (O3-8)

Maricopa

41 (O3-8)

47 (O3-8)

36 (O3-8)

42 (O3-8)

45 (O3-8)

49 (O3-8)

64 (O3-8)

Lebec

29 (PM25)

25 (PM25)

29 (PM25)

25 (PM25)

17 (PM25)

25 (PM25)

Maximum Measured

Unofficial Days Over the Federal and State Standards¹

Value for This Year

Pollutant

Maximum

PM10 Federal 24-hr

Federal 1-Hr Ozone

O3-1hr (ppb)

113

PM10 State 24-hr

122

State 1-Hr Ozone

O3-8hr (ppb)

PM2.5 Federal 2006 24-hr

Federal 2008 8-Hr Ozone

PM 10 (µg/m³)

133

PM2.5 Federal 1997 24-hr

Federal 1997 8-Hr Ozone

PM 2.5 (µg/m³)

State 1997 8-Hr Ozone

105

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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Tuesday, September 26, 2017

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