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California Air Resources Board

Annual Statewide Toxics Summary
ARB's ADAM Air Quality Database
Phosphorus FAQs
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2017
* * * * * * 0 *
2016
* * * * * * 0 *
2015
* * * * * * 0 *
2014
* * * * * * 0 *
2013
* * * * * * 0 *
2012
* * * * * * 0 *
2011
* * * * * * 0 *
2010
* * * * * * 0 *
2009
* * * * * * 0 *
2008
* * * * * * 0 *
2007
* * * * * * 0 *
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
1 23 * 44 290 34.5 86 2
2002
1 50 70.5 140 580 79.6 491 2
2001
7.5 48 69.7 140 570 79.1 505 15
2000
7.5 51 73.8 140 1300 91.8 472 15
1999
7.5 53 73.8 150 490 69.4 565 15
1998
7.5 48 65.3 130 470 57.9 561 15
1997
7.5 43 52.4 110 270 43.3 557 15
1996
7.5 38 54.7 120 520 61.0 595 15
1995
7.5 18 38.6 99 390 51.9 602 15
1994
7.5 7.5 * 66 300 46.3 300 15
1993
* * * * * * 0 *
1992
1 13 * 70 610 53.2 362 2
1991
1 11 29.6 82 280 41.8 567 2
1990
1 24 * 120 290 54.7 309 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.
"*" means there was insufficient or no data available to determine the value.