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	Annual Toxics Summary Simi Valley-Cochran Street FAQs Dibenz(a,h)anthracene-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	*	*	*	0.025	0.000	5	0.05	*
2004		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
2003		0.025	0.025	0.026	0.025	0.06	0.006	31	0.05	0.09
2002		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
2001		0.025	0.025	0.026	0.025	0.05	0.004	31	0.05	0.09
2000		0.025	0.025	0.026	0.025	0.05	0.004	31	0.05	0.09
1999		0.025	0.025	0.025	0.025	0.025	0.000	30	0.05	0.08
1998		0.025	0.025	0.027	0.025	0.08	0.010	30	0.05	0.09
1997		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
1996		0.025	0.025	0.025	0.025	0.025	0.000	24	0.05	0.08
1995		0.025	0.025	0.025	0.025	0.025	0.000	24	0.05	0.08
1994		0.025	0.025	*	0.025	0.025	0.000	12	0.05	*
1993		0.025	0.025	0.027	0.025	0.08	0.011	24	0.05	0.09
1992		0.025	0.025	0.028	0.025	0.10	0.015	24	0.05	0.09
1991		0.025	0.025	0.046	0.08	0.22	0.056	24	0.05	0.2
1990		0.025	*	*	*	0.10	0.035	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.