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	Annual Toxics Summary Simi Valley-Cochran Street FAQs Indeno(1,2,3-cd)pyrene-10 nanograms per cubic meter

Read About Estimated Risk

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit	Estimated Risk
2005		0.025	*	*	*	0.22	0.079	5	0.05	*
2004		0.025	0.025	0.058	0.13	0.20	0.054	31	0.05	0.02
2003		0.025	0.025	0.079	0.21	0.39	0.092	31	0.05	0.03
2002		0.025	0.025	0.104	0.31	0.46	0.121	31	0.05	0.03
2001		0.025	0.025	0.075	0.21	0.36	0.086	31	0.05	0.02
2000		0.025	0.025	0.114	0.34	0.58	0.139	31	0.05	0.04
1999		0.025	0.05	0.096	0.33	0.58	0.138	30	0.05	0.03
1998		0.025	0.06	0.114	0.41	0.79	0.177	30	0.05	0.04
1997		0.025	0.05	0.098	0.23	0.40	0.105	31	0.05	0.03
1996		0.025	0.07	0.135	0.24	0.90	0.187	24	0.05	0.04
1995		0.025	0.10	0.135	0.23	0.63	0.142	24	0.05	0.04
1994		0.05	0.23	*	0.40	0.43	0.131	12	0.05	*
1993		0.025	0.11	0.216	0.55	0.94	0.254	24	0.05	0.07
1992		0.025	0.10	0.147	0.31	0.78	0.169	24	0.05	0.05
1991		0.025	0.16	0.381	1.17	1.6	0.472	24	0.05	0.1
1990		0.06	*	*	*	1.0	0.337	8	0.05	*
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.