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Annual Statewide Toxics Summary
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nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2017
1.43 18.7 29.0 56.7 235 29.4 420 2.86
2016
1.43 20.8 26.5 51.1 271 22.8 424 2.86
2015
1.43 20.2 28.0 51.1 586 36.4 418 2.86
2014
3.05 19 26.6 53 240 28.3 398 6.1
2013
0.75 23 * 58 170 24.0 431 1.5
2012
0.75 16 * 38 350 22.5 346 1.5
2011
0.75 18 * 43 200 21.8 311 1.5
2010
2.2 16 19.9 38 100 13.9 346 1.5
2009
1.9 16 * 41 93 15.4 440 1.5
2008
* * * * * * 0 *
2007
2.5 20 24.8 46.4 140 19.2 467 1.5
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
2.0 29.5 * 65.5 110 22.3 86 1.0
2002
1.0 25 34.2 72 430 33.6 491 1.0
2001
1 20 28.0 56 210 25.6 505 2.0
2000
1 21 29.8 58 350 31.0 472 2.0
1999
1 20 29.2 61 430 34.7 565 2.0
1998
1 22 32.8 74 250 32.5 561 2.0
1997
2.0 26 36.8 81 880 48.6 557 2.0
1996
1 23 35.0 68.2 930 48.8 595 2.0
1995
1 25 40.2 69 1500 82.7 602 2.0
1994
1 24 34.0 63 540 37.7 585 2.0
1993
4.0 27 34.9 66.6 210 25.6 575 2.0
1992
2.0 26 36.0 59 1000 64.4 554 2.0
1991
1 22 34.0 66 800 45.7 567 2.0
1990
1 25 * 55.2 240 25.9 309 2.0
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.