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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 0.01 0.000 21 0.02 *
2022
0.01 0.01 0.010 0.01 0.01 0.000 30 0.02 0.3
2021
0.01 0.01 * 0.01 0.02 0.002 23 0.02 *
2020
0.01 * * * 0.02 0.005 9 0.02 *
2019
0.01 0.01 0.012 0.01 0.04 0.006 29 0.02 0.4
2018
0.01 0.01 0.014 0.03 0.06 0.011 31 0.02 0.4
2017
0.01 0.01 0.017 0.04 0.09 0.018 28 0.02 0.5
2016
0.01 0.01 0.018 0.04 0.05 0.014 30 0.02 0.6
2015
0.01 0.01 0.023 0.05 0.09 0.020 31 0.02 0.7
2014
0.01 0.01 0.014 0.03 0.04 0.009 29 0.02 0.4
2013
0.01 0.01 0.019 0.04 0.11 0.021 30 0.02 0.6
2012
0.01 0.01 0.015 0.03 0.03 0.009 30 0.02 0.5
2011
0.01 0.01 0.013 0.01 0.05 0.008 31 0.02 0.4
2010
0.01 0.01 0.021 0.06 0.09 0.022 30 0.02 0.6
2009
0.01 0.01 0.022 0.05 0.11 0.022 32 0.02 0.7
2008
0.01 0.01 0.026 0.05 0.18 0.034 30 0.02 0.8
2007
0.01 0.01 0.036 0.10 0.18 0.046 31 0.02 1
2006
0.01 0.02 * 0.15 0.24 0.067 26 0.02 *
2005
0.01 0.03 0.072 0.23 0.53 0.115 29 0.02 2
2004
0.01 0.02 0.080 0.15 0.60 0.130 31 0.02 2
2003
0.01 0.03 * 0.21 0.28 0.080 28 0.02 *
2002
0.01 0.03 0.060 0.15 0.18 0.058 31 0.02 2
2001
0.01 0.02 0.038 0.08 0.17 0.040 30 0.02 1
2000
0.01 0.03 0.051 0.14 0.20 0.053 29 0.02 2
1999
0.01 0.04 * 0.15 0.20 0.057 18 0.02 *
1998
0.01 0.05 * 0.11 0.13 0.038 25 0.02 *
1997
0.01 0.02 0.061 0.11 0.85 0.156 29 0.02 2
1996
0.01 0.05 * 0.14 0.26 0.062 26 0.02 *
1995
0.01 0.05 0.060 0.11 0.13 0.037 29 0.02 2
1994
0.01 0.01 0.020 0.05 0.11 0.024 31 0.02 0.6
1993
0.01 0.01 0.013 0.01 0.06 0.010 31 0.02 0.4
1992
0.01 0.02 0.028 0.05 0.14 0.027 30 0.02 0.9
1991
0.01 0.03 0.053 0.07 0.49 0.089 28 0.02 2
1990
0.01 0.04 0.048 0.07 0.21 0.037 31 0.02 1
1989
0.01 0.06 0.107 0.14 0.91 0.175 25 0.02 3
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.