Orange County, California

 

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Number of Days Exceeding Federal & State Air Quality Standards per Year
Orange County
Tables are for Los Angeles County portions of the South Coast & Mojave Desert Air Quality Management Districts

Orange County Portion of South Coast Air Quality Management District (Map)

Year

OZONE (ppm*)

Respirable Particle Matter (Pm10)(ug/m3)

CARBON MONOXIDE (ppm*)

Days Above State 1-Hr. Standard (0.09 ppm*)

Days Above Federal 1-Hr. Standard (0.12 ppm*)

Calculated Days Above State 24-Hr. Standard (50 ug/m3)**

Calculated Days Above Federal 24-Hr. Standard (150 ug/m3)**

Days Above State 8-Hr. Standard (9.0 ppm*)

Days Above Federal 8-Hr. Standard (9.0 ppm*)

2001

12

1

53

0

0

0

2000

14

2

45

0

0

0

1999

8

0

90

0

0

0

1998

22

6

72

0

0

0

1997

13

3

62

0

0

0

1996

27

6

36

0

0

0

1995

39

4

75

7

0

0

1994

46

9

66

0

0

0

1993

59

17

78

0

0

0

1992

63

35

66

0

3

0

1991

71

32

84

0

0

0

1990

80

37

112

6

6

5

Year

OZONE (ppm*)

Respirable Particle Matter (Pm10)(ug/m3)

CARBON MONOXIDE (ppm*)

Days Above State 1-Hr. Standard (0.09 ppm*)

Days Above Federal 1-Hr. Standard (0.12 ppm*)

Calculated Days Above State 24-Hr. Standard (50 ug/m3)**

Calculated Days Above Federal 24-Hr. Standard (150 ug/m3)**

Days Above State 8-Hr. Standard (9.0 ppm*)

Days Above Federal 8-Hr. Standard (9.0 ppm*)

1989

81

38

126

0

13

12

1988

96

45

90

0

9

7

1987

81

42

--- ---

3

2

1986

101

53

--- ---

4

4

1985

101

63

--- ---

9

7

1984

107

65

--- ---

7

5

1983

110

65

--- ---

8

8

1982

79

42

--- ---

13

9

* ppm - parts per million
** Tiny solid or liquid particles of soot, dust, smoke, fumes, or mists. The size of the particles (10 microns or smaller, about 0.0004 inches or less) allows them to enter the air sacs deep in the lungs where they may be deposited to the result in adverse health effects. Also causes visibility reduction. Data listed here are reported as 24-hour average concentrations in ug/m3 (weight of particles in micrograms per one cubic meter of air).

Source: California Air Resources Board

 

Smog Kills. According to the South Coast Air Quality Management District, an estimated 1,600 people die prematurely each year in the greater Los Angeles/Orange County region due to smog. Thousands more suffer temporary or long-term health effects and millions more are at least inconvenienced.

 

 

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