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	Annual Toxics Summary Fresno-1st 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	*	*	*	0.11	0.035	5	0.05	*
2004		0.025	0.025	0.049	0.10	0.34	0.062	30	0.05	0.2
2003		0.025	0.025	0.075	0.23	0.41	0.104	31	0.05	0.3
2002		0.025	0.025	0.086	0.25	0.34	0.097	30	0.05	0.3
2001		0.025	0.025	0.080	0.23	0.58	0.136	31	0.05	0.3
2000		0.025	0.025	0.073	0.15	0.62	0.129	30	0.05	0.2
1999		0.025	0.025	0.078	0.25	0.73	0.145	30	0.05	0.3
1998		0.025	0.025	0.059	0.15	0.39	0.076	31	0.05	0.2
1997		0.025	0.025	0.066	0.13	0.52	0.101	30	0.05	0.2
1996		0.025	0.025	0.046	0.12	0.21	0.049	24	0.05	0.2
1995		0.025	0.025	0.045	0.07	0.21	0.051	24	0.05	0.2
1994		0.025	0.05	*	0.19	0.35	0.094	14	0.05	*
1993		0.025	0.025	0.119	0.34	0.43	0.135	24	0.05	0.4
1992		0.025	0.025	0.067	0.17	0.33	0.082	24	0.05	0.2
1991		0.025	0.025	0.133	0.36	0.72	0.179	24	0.05	0.4
1990		0.06	*	*	*	6.6	2.27	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.