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Annual Statewide Toxics Summary
Trichlorotrifluoroethane
FAQs
parts per billion
Year
Months
Present
Minimum
Median
Mean
90th
Percentile
Maximum
Standard
Deviation
Number of
Observations
Detection
Limit
2023
0.05
0.06
*
0.06
0.07
0.003
75
0.02
2022
0.04
0.06
0.055
0.06
0.07
0.008
370
0.02
2021
0.04
0.05
*
0.06
0.08
0.006
314
0.02
2020
0.06
0.07
*
0.07
0.07
0.003
106
0.02
2019
0.06
0.07
0.065
0.07
0.10
0.005
400
0.02
2018
0.06
0.07
0.070
0.08
0.09
0.006
392
0.02
2017
0.01
0.07
0.067
0.07
0.10
0.007
387
0.02
2016
*
*
*
*
*
*
0
*
2015
*
*
*
*
*
*
0
*
2014
*
*
*
*
*
*
0
*
2013
*
*
*
*
*
*
0
*
2012
*
*
*
*
*
*
0
*
2011
*
*
*
*
*
*
0
*
2010
*
*
*
*
*
*
0
*
2009
*
*
*
*
*
*
0
*
2008
*
*
*
*
*
*
0
*
2007
*
*
*
*
*
*
0
*
2006
*
*
*
*
*
*
0
*
2005
*
*
*
*
*
*
0
*
2004
*
*
*
*
*
*
0
*
2003
*
*
*
*
*
*
0
*
2002
*
*
*
*
*
*
0
*
2001
*
*
*
*
*
*
0
*
2000
*
*
*
*
*
*
0
*
1999
*
*
*
*
*
*
0
*
1998
*
*
*
*
*
*
0
*
1997
*
*
*
*
*
*
0
*
1996
*
*
*
*
*
*
0
*
1995
*
*
*
*
*
*
0
*
1994
*
*
*
*
*
*
0
*
1993
*
*
*
*
*
*
0
*
1992
*
*
*
*
*
*
0
*
1991
*
*
*
*
*
*
0
*
1990
*
*
*
*
*
*
0
*
1989
*
*
*
*
*
*
0
*
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.
