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	Annual Toxics Summary San Jose-4th 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	*	*
2004		*	*	*	*	*	*	0	*	*
2003		*	*	*	*	*	*	0	*	*
2002		0.025	*	*	*	0.14	0.046	10	0.05	*
2001		0.025	0.025	0.043	0.07	0.38	0.068	31	0.05	0.1
2000		0.025	0.025	0.035	0.025	0.14	0.029	30	0.05	0.1
1999		0.025	0.025	0.048	0.12	0.19	0.045	30	0.05	0.2
1998		0.025	0.025	0.036	0.08	0.13	0.027	31	0.05	0.1
1997		0.025	0.025	0.031	0.025	0.10	0.017	30	0.05	0.1
1996		0.025	0.025	0.026	0.025	0.05	0.005	24	0.05	0.09
1995		0.025	0.025	0.032	0.025	0.15	0.026	24	0.05	0.1
1994		0.025	0.025	*	0.14	0.19	0.056	14	0.05	*
1993		0.025	0.025	0.048	0.10	0.15	0.036	24	0.05	0.2
1992		0.025	0.025	0.051	0.13	0.26	0.060	24	0.05	0.2
1991		0.025	0.025	0.052	0.14	0.20	0.053	24	0.05	0.2
1990		0.025	*	*	*	1.8	0.595	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.