Sites with chloroform data available Available Substances Order a Data CD Toxics Statistics Home Page Data Descriptions Page
California Home ARB: Home Search Site Map Links Software Contact Us AQD: Home
California Air Resources Board

Annual Toxics Summary		 ARB's ADAM Air Quality Database
Simi Valley-Cochran Street
Chloroform
parts per billion
Year Months
Present		 Minimum Median Mean 90th
Percentile		 Maximum Standard
Deviation		 Number of
Observations		 Detection
Limit		 Estimated
Risk
2002
0.02 0.04 0.051 0.07 0.13 0.024 27 0.02 1
2001
0.01 0.04 0.039 0.06 0.08 0.019 27 0.02 1
2000
0.01 0.04 0.046 0.07 0.21 0.038 29 0.02 1
1999
0.02 0.06   0.09 0.14 0.032 15 0.02  
1998
0.01 0.04   0.06 0.08 0.018 17 0.02  
1997
0.01 0.04 0.036 0.06 0.09 0.020 28 0.02 0.9
1996
0.01 0.05 0.049 0.08 0.11 0.021 30 0.02 1
1995
0.01 0.04 0.043 0.08 0.12 0.027 31 0.02 1
1994
0.01 0.03 0.031 0.05 0.07 0.018 29 0.02 0.8
1993
0.01 0.03 0.031 0.05 0.07 0.017 28 0.02 0.8
1992
0.01 0.03 0.031 0.05 0.07 0.018 29 0.02 0.8
1991
0.01 0.03 0.036 0.06 0.09 0.023 28 0.02 0.9
1990
0.01 0.03 0.029 0.05 0.06 0.018 29 0.02 0.7
1989
0.01 0.03 0.030 0.05 0.06 0.016 22 0.02 0.8
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.
Risks shown only for those substances with unit risk factors.