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

County:      SANTA CLARA


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

San Jose-4th Street (2001)
1.6 1.6 1.0 yes
Carbon Tetrachloride

San Jose-4th Street (2001)
0.91 0.55 1.7 yes
Chloroform

San Jose-4th Street (2001)
0.085 0.14 0.61 no
Chromium

San Jose-4th Street (2001)
0.0075 0.0046 1.6 yes
Dichloromethane

San Jose-4th Street (2001)
0.59 0.83 0.71 no
Ethylbenzene

San Jose-4th Street (2001)
0.91 0.78 1.2 no
Formaldehyde

San Jose-4th Street (2001)
1.7 2.8 0.60 yes
Lead

San Jose-4th Street (2001)
0.010 0.0085 1.2 no
Manganese

San Jose-4th Street (2001)
0.0052 0.020 0.26 no
Mercury

San Jose-4th Street (2001)
0.00011 0.0016 0.071 no
Methyl Tert-Butyl Ether

San Jose-4th Street (2001)
2.8 3.2 0.88 no
Nickel

San Jose-4th Street (2001)
0.0032 0.0045 0.72 yes
Styrene

San Jose-4th Street (2001)
0.092 0.42 0.22 no
Tetrachloroethylene

San Jose-4th Street (2001)
0.54 0.33 1.6 yes
Toluene

San Jose-4th Street (2001)
6.6 4.9 1.3 no
Trichloroethylene

San Jose-4th Street (2001)
0.18 0.17 1.0 no
Xylene (Mixed Isomers)

San Jose-4th Street (2001)
3.7 14 0.27 no