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Annual Toxics Summary		 ARB's ADAM Air Quality Database
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Chloroform
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 0.03 * 0.05 0.08 0.017 20 0.02 *
2022
0.01 0.03 0.027 0.04 0.05 0.012 31 0.02 2
2021
0.01 0.02 * 0.03 0.04 0.009 23 0.02 *
2020
0.01 * * * 0.04 0.011 7 0.02 *
2019
0.02 0.03 0.035 0.05 0.06 0.010 30 0.02 3
2018
0.02 0.05 0.051 0.07 0.19 0.030 31 0.02 4
2017
0.02 0.04 0.045 0.06 0.07 0.012 30 0.02 3
2016
0.02 0.05 0.053 0.09 0.09 0.020 31 0.02 4
2015
0.03 0.05 0.058 0.08 0.27 0.044 30 0.02 4
2014
0.02 0.04 0.041 0.07 0.08 0.017 30 0.02 3
2013
0.01 0.04 0.037 0.06 0.07 0.014 31 0.02 3
2012
0.01 0.03 0.033 0.05 0.08 0.018 30 0.02 2
2011
0.02 0.03 0.036 0.05 0.07 0.012 31 0.02 3
2010
0.01 0.03 0.033 0.05 0.11 0.020 29 0.02 3
2009
0.01 0.03 0.032 0.05 0.08 0.017 31 0.02 2
2008
0.01 0.03 0.031 0.05 0.07 0.015 31 0.02 2
2007
0.02 0.03 0.035 0.05 0.07 0.013 30 0.02 3
2006
0.01 0.03 0.036 0.05 0.09 0.016 30 0.02 3
2005
0.01 0.03 0.038 0.07 0.08 0.017 31 0.02 3
2004
0.01 0.03 0.031 0.04 0.05 0.009 30 0.02 2
2003
0.01 0.04 0.041 0.07 0.08 0.020 31 0.02 3
2002
0.01 0.03 0.031 0.04 0.06 0.011 30 0.02 2
2001
0.01 0.03 0.029 0.05 0.06 0.011 29 0.02 2
2000
0.01 0.03 0.029 0.05 0.08 0.018 28 0.02 2
1999
0.01 0.03 * 0.04 0.05 0.012 21 0.02 *
1998
0.01 0.02 * 0.03 0.04 0.007 16 0.02 *
1997
0.01 0.03 0.029 0.04 0.07 0.015 29 0.02 2
1996
0.01 0.03 0.033 0.04 0.11 0.020 30 0.02 3
1995
0.01 0.03 0.025 0.05 0.05 0.014 30 0.02 2
1994
0.01 0.01 0.019 0.03 0.11 0.019 30 0.02 1
1993
0.01 0.02 * 0.03 0.04 0.009 23 0.02 *
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.