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	Annual Toxics Summary Los Angeles-North Main 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		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
2003		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
2002		0.025	0.025	0.027	0.025	0.06	0.008	31	0.05	0.09
2001		0.025	0.025	0.028	0.025	0.08	0.012	30	0.05	0.09
2000		0.025	0.025	0.028	0.025	0.07	0.013	31	0.05	0.1
1999		0.025	0.025	0.025	0.025	0.025	0.000	30	0.05	0.08
1998		0.025	0.025	0.026	0.025	0.05	0.005	30	0.05	0.09
1997		0.025	0.025	0.025	0.025	0.025	0.000	30	0.05	0.08
1996		0.025	0.025	0.026	0.025	0.06	0.007	24	0.05	0.09
1995		0.025	0.025	0.025	0.025	0.025	0.000	24	0.05	0.08
1994		0.025	0.025	*	0.06	0.13	0.029	14	0.05	*
1993		0.025	0.025	0.035	0.06	0.10	0.020	24	0.05	0.1
1992		0.025	0.025	0.042	0.11	0.14	0.036	24	0.05	0.1
1991		0.025	0.025	0.063	0.08	0.60	0.121	24	0.05	0.2
1990		0.025	*	*	*	0.22	0.074	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.