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.

03/13

03/14

03/15

03/16

03/17

03/18

03/19

San Joaquin

Stockton-Hazelton

36 (O3-8)

35 (O3-8)

50 (PM25)

66 (PM25)

57 (PM25)

68 (PM25)

42 (O3-8)

Manteca

17 (PM25)

38 (PM25)

33 (PM25)

57 (PM25)

46 (PM25)

Tracy-Airport

41 (O3-8)

40 (O3-8)

44 (O3-8)

47 (O3-8)

49 (O3-8)

51 (O3-8)

43 (O3-8)

Stanislaus

Modesto-14th

41 (O3-8)

38 (O3-8)

42 (O3-8)

50 (PM25)

61 (O3-8)

57 (PM25)

46 (PM25)

Turlock

37 (O3-8)

36 (O3-8)

53 (PM25)

59 (PM25)

55 (PM25)

62 (PM25)

64 (PM25)

Merced

Merced-Coffee

41 (O3-8)

42 (PM25)

53 (PM25)

50 (PM25)

48 (O3-8)

50 (PM25)

Madera

Madera-City

36 (O3-8)

38 (O3-8)

46 (PM25)

44 (O3-8)

43 (O3-8)

45 (O3-8)

43 (O3-8)

Madera

39 (O3-8)

42 (O3-8)

44 (O3-8)

48 (O3-8)

49 (O3-8)

46 (O3-8)

Fresno

Fresno-SSP

35 (O3-8)

38 (O3-8)

43 (O3-8)

45 (O3-8)

44 (O3-8)

50 (O3-8)

46 (O3-8)

Clovis

38 (O3-8)

38 (PM25)

44 (O3-8)

48 (O3-8)

46 (O3-8)

54 (O3-8)

49 (PM10)

Fresno-Garland

35 (O3-8)

42 (PM25)

41 (O3-8)

50 (PM25)

44 (O3-8)

47 (O3-8)

44 (O3-8)

Fresno-Drummond

37 (O3-8)

42 (O3-8)

50 (O3-8)

49 (O3-8)

54 (O3-8)

46 (O3-8)

Parlier

34 (O3-8)

42 (O3-8)

43 (O3-8)

46 (O3-8)

47 (O3-8)

58 (O3-8)

50 (O3-8)

Tranquillity

40 (O3-8)

42 (O3-8)

45 (O3-8)

50 (O3-8)

48 (O3-8)

47 (O3-8)

46 (O3-8)

Huron

8 (PM25)

17 (PM25)

25 (PM25)

29 (PM25)

17 (PM25)

Kings

Hanford

39 (O3-8)

41 (O3-8)

44 (O3-8)

57 (PM25)

70 (PM25)

62 (PM25)

44 (O3-8)

Corcoran

17 (PM25)

33 (PM25)

50 (PM25)

55 (PM25)

62 (PM25)

57 (PM25)

39 (PM10)

Tulare

Visalia, Church

36 (O3-8)

46 (PM25)

33 (PM25)

50 (PM25)

55 (PM25)

47 (O3-8)

Porterville

38 (PM25)

39 (O3-8)

42 (O3-8)

47 (O3-8)

49 (O3-8)

55 (PM25)

44 (O3-8)

Ash Mountain-SNP

34 (O3-8)

41 (O3-8)

44 (O3-8)

47 (O3-8)

Lower Kaweah-SNP

Kern

Shafter

42 (O3-8)

Oildale

40 (O3-8)

43 (O3-8)

47 (O3-8)

46 (O3-8)

46 (PM10)

59 (PM10)

Bakersfield-Calif

40 (O3-8)

42 (O3-8)

50 (PM25)

54 (O3-8)

50 (O3-8)

44 (O3-8)

Bakersfield-Muni

37 (O3-8)

39 (O3-8)

48 (O3-8)

45 (O3-8)

42 (O3-8)

39 (O3-8)

Edison

41 (O3-8)

43 (O3-8)

51 (O3-8)

48 (O3-8)

46 (O3-8)

44 (O3-8)

Arvin-DiGiorgio

41 (O3-8)

42 (O3-8)

44 (O3-8)

54 (O3-8)

51 (O3-8)

67 (O3-8)

46 (O3-8)

Maricopa

43 (O3-8)

44 (O3-8)

46 (O3-8)

54 (O3-8)

64 (O3-8)

71 (O3-8)

48 (O3-8)

Lebec

17 (PM25)

25 (PM25)

29 (PM25)

33 (PM25)

17 (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)

PM10 State 24-hr

State 1-Hr Ozone

O3-8hr (ppb)

PM2.5 Federal 2006 24-hr

Federal 2008 8-Hr Ozone

PM 10 (µg/m³)

PM2.5 Federal 1997 24-hr

Federal 1997 8-Hr Ozone

PM 2.5 (µg/m³)

State 1997 8-Hr Ozone

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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Wednesday, March 20, 2019

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