POLLUTION LOCATOR|Hazardous Air Pollutants | Compare Measured with Estimated HAP Concentrations

County:      SAN DIEGO


HAP
Monitor Station (Year)
Estimated Annual
1996 Average
Concentration
(ug/m3)
Measured Annual Average Concentration (ug/m3)  Estimated/
Measured
Ratio
Measured
 Concentration
Greater Than
Clean Air Act
Goal

Benzene

Chula Vista (2001)
1.5 1.4 1.1 yes
El Cajon-Redwood Avenue (2001)
1.5 1.9 0.77 yes
Carbon Tetrachloride

Chula Vista (2001)
0.99 0.54 1.8 yes
El Cajon-Redwood Avenue (2001)
0.99 0.54 1.8 yes
Chloroform

Chula Vista (2001)
0.091 0.090 1.0 no
El Cajon-Redwood Avenue (2001)
0.091 0.15 0.61 no
Chromium

Chula Vista (2001)
0.00091 0.0017 0.53 yes
El Cajon-Redwood Avenue (2001)
0.00091 0.0021 0.43 yes
Dichloromethane

Chula Vista (2001)
0.56 0.59 0.95 no
El Cajon-Redwood Avenue (2001)
0.56 0.69 0.81 no
Ethylbenzene

Chula Vista (2001)
0.78 0.56 1.4 no
El Cajon-Redwood Avenue (2001)
0.78 0.65 1.2 no
Formaldehyde

Chula Vista (2001)
1.6 3.1 0.51 yes
El Cajon-Redwood Avenue (2001)
1.6 3.4 0.47 yes
Lead

Chula Vista (2001)
0.013 0.020 0.64 no
El Cajon-Redwood Avenue (2001)
0.013 0.0080 1.6 no
Manganese

Chula Vista (2001)
0.011 0.010 1.1 no
El Cajon-Redwood Avenue (2001)
0.011 0.020 0.56 no
Mercury

Chula Vista (2001)
0.000090 0.0016 0.056 no
El Cajon-Redwood Avenue (2001)
0.000090 0.0016 0.056 no
Methyl Tert-Butyl Ether

Chula Vista (2001)
2.9 3.6 0.81 no
El Cajon-Redwood Avenue (2001)
2.9 6.6 0.44 no
Nickel

Chula Vista (2001)
0.0025 0.0045 0.55 yes
El Cajon-Redwood Avenue (2001)
0.0025 0.0037 0.67 no
Styrene

Chula Vista (2001)
0.090 0.21 0.43 no
El Cajon-Redwood Avenue (2001)
0.090 0.25 0.36 no
Tetrachloroethylene

Chula Vista (2001)
0.35 0.39 0.91 yes
El Cajon-Redwood Avenue (2001)
0.35 0.45 0.78 yes
Toluene

Chula Vista (2001)
5.1 4.0 1.3 no
El Cajon-Redwood Avenue (2001)
5.1 6.3 0.80 no
Trichloroethylene

Chula Vista (2001)
0.13 0.20 0.66 no
El Cajon-Redwood Avenue (2001)
0.13 0.10 1.3 no
Xylene (Mixed Isomers)

Chula Vista (2001)
3.1 8.2 0.38 no
El Cajon-Redwood Avenue (2001)
3.1 14 0.23 no