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Annual Toxics Summary		 ARB's ADAM Air Quality Database
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Trichloroethylene
parts per billion
Read About Estimated Risk
Year Months
Present		 Minimum Median Mean 90th
Percentile		 Maximum Standard
Deviation		 Number of
Observations		 Detection
Limit		 Estimated
Risk
2023
0.01 0.01 * 0.01 0.03 0.004 20 0.02 *
2022
0.01 0.01 0.011 0.01 0.03 0.003 31 0.02 0.3
2021
0.01 0.01 * 0.01 0.01 0.000 23 0.02 *
2020
0.01 * * * 0.01 0.000 7 0.02 *
2019
0.01 0.01 0.011 0.01 0.02 0.003 28 0.02 0.3
2018
0.01 0.01 0.011 0.01 0.02 0.003 28 0.02 0.3
2017
0.01 0.01 0.012 0.01 0.07 0.012 29 0.02 0.4
2016
0.01 0.01 0.011 0.01 0.04 0.007 29 0.02 0.3
2015
0.01 0.01 0.013 0.02 0.04 0.008 30 0.02 0.4
2014
0.01 0.01 0.014 0.02 0.07 0.011 30 0.02 0.4
2013
0.01 0.01 0.010 0.01 0.01 0.000 31 0.02 0.3
2012
0.01 0.01 0.012 0.02 0.03 0.006 29 0.02 0.4
2011
0.01 0.01 0.025 0.01 0.52 0.092 31 0.02 0.8
2010
0.01 0.01 * 0.01 0.02 0.004 19 0.02 *
2009
0.01 0.01 0.012 0.01 0.05 0.007 31 0.02 0.4
2008
0.01 0.01 0.017 0.04 0.09 0.019 29 0.02 0.5
2007
0.01 0.01 0.015 0.02 0.06 0.010 28 0.02 0.5
2006
0.01 0.01 0.031 0.08 0.18 0.037 31 0.02 1
2005
0.01 0.03 0.046 0.10 0.27 0.052 30 0.02 1
2004
0.01 0.02 0.026 0.05 0.10 0.021 31 0.02 0.8
2003
0.01 0.01 0.042 0.11 0.19 0.046 30 0.02 1
2002
0.01 0.02 0.027 0.05 0.08 0.021 30 0.02 0.8
2001
0.01 0.03 0.047 0.07 0.25 0.059 31 0.02 1
2000
0.01 0.03 0.044 0.09 0.18 0.042 31 0.02 1
1999
0.01 0.01 * 0.05 0.07 0.020 23 0.02 *
1998
0.01 0.01 * 0.06 0.10 0.023 26 0.02 *
1997
0.01 0.01 0.014 0.03 0.04 0.009 30 0.02 0.4
1996
0.01 0.01 0.012 0.02 0.03 0.006 30 0.02 0.4
1995
0.01 0.01 * 0.02 0.06 0.014 12 0.02 *
1994
* * * * * * 0 * *
1993
* * * * * * 0 * *
1992
* * * * * * 0 * *
1991
* * * * * * 0 * *
1990
* * * * * * 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.