Available Substances Order a Data CD Toxics Statistics Home Page Data Descriptions Page
California Home ARB: Home Search Site Map Links Software Contact Us AQD: Home
California Air Resources Board

Annual Statewide Toxics Summary
ARB's ADAM Air Quality Database
Zinc
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2002
2 45 58.1 110 360 42.5 491 1
2001
1 40 54.9 110 890 62.5 505 2
2000
5 42 71.4 110 4800 223 472 2
1999
1 37 50.7 95 310 43.2 565 2
1998
1 37 47.1 93 350 34.5 561 2
1997
4 39 49.0 89 280 36.5 557 2
1996
4 37 52.1 95 610 49.6 595 2
1995
5 41 54.2 110 440 49.0 602 2
1994
5 40 57.5 110 400 51.8 585 2
1993
3 40 51.6 96 340 37.2 575 2
1992
3 39 51.9 99 750 50.4 554 2
1991
3 40 55.0 110 290 43.8 567 2
1990
5 51   100 430 46.6 309 2
1989
            0  
Graph It!
Notes Values below the Limit of Detection (LoD) assumed to be ½ LoD.
Means and risks shown only for years with data in all 12 months.
Risks shown only for those substances with unit risk factors.