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Annual Statewide Toxics Summary
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parts per billion
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2017
0.005 0.005 0.008 0.005 0.26 0.016 404 0.01
2016
0.005 0.005 0.010 0.02 0.28 0.018 429 0.01
2015
0.005 0.005 0.009 0.02 0.20 0.013 412 0.01
2014
0.005 0.005 0.132 0.01 9.7 0.945 362 0.01
2013
0.005 0.005 0.387 0.01 9.2 1.54 469 0.01
2012
0.005 0.005 0.309 0.01 9.3 1.22 467 0.01
2011
0.005 0.005 0.304 0.02 7.4 1.26 490 0.01
2010
0.005 0.01 0.098 0.02 7.7 0.643 473 0.01
2009
0.005 0.01 0.025 0.02 0.37 0.049 522 0.01
2008
0.005 0.01 0.021 0.03 0.30 0.029 518 0.01
2007
0.01 0.02 0.024 0.03 0.31 0.029 495 0.01
2006
0.01 0.02 0.029 0.03 0.35 0.034 504 0.01
2005
0.02 0.02 0.025 0.03 0.21 0.012 510 0.01
2004
0.005 0.03 0.032 0.04 0.35 0.018 497 0.01
2003
0.02 0.04 0.048 0.05 1.2 0.085 503 0.01
2002
0.03 0.04 0.048 0.06 0.30 0.018 459 0.01
2001
0.02 0.05 0.056 0.08 0.59 0.035 499 0.01
2000
0.005 0.07 0.119 0.13 15 0.673 495 0.01
1999
0.04 0.07 * 0.16 1.6 0.135 271 0.01
1998
0.03 0.06 0.088 0.15 0.80 0.091 498 0.01
1997
0.005 0.10 0.314 0.80 7.2 0.633 557 0.01
1996
0.05 0.12 0.301 0.53 10 0.644 626 0.01
1995
0.07 0.22 0.482 1.3 7.2 0.674 616 0.01
1994
0.05 0.29 0.740 1.61 16 1.29 610 0.01
1993
0.12 0.44 1.38 3.0 45 3.43 586 0.01
1992
0.02 0.64 1.28 3.13 20 1.80 598 0.01
1991
0.19 0.85 1.71 4.1 18 2.29 574 0.01
1990
0.08 0.80 1.71 3.8 23 2.65 577 0.01
1989
0.09 0.86 1.94 4.8 31 3.02 397 0.01
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.