California Home	ARB:	Home	Search	Site Map				Contact Us

	Annual Toxics Summary El Cajon-Redwood Avenue 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	0.030	0.025	0.11	0.018	31	0.05	0.1
2003		0.025	0.025	0.030	0.025	0.12	0.019	31	0.05	0.1
2002		0.025	0.025	0.036	0.06	0.15	0.029	31	0.05	0.1
2001		0.025	0.025	0.046	0.13	0.19	0.048	30	0.05	0.2
2000		0.025	0.025	0.042	0.10	0.20	0.042	31	0.05	0.1
1999		0.025	0.025	0.046	0.12	0.16	0.042	30	0.05	0.2
1998		0.025	0.025	0.035	0.05	0.24	0.041	30	0.05	0.1
1997		0.025	0.025	0.033	0.06	0.10	0.018	31	0.05	0.1
1996		0.025	0.025	0.029	0.025	0.07	0.012	24	0.05	0.1
1995		0.025	0.025	0.029	0.025	0.12	0.019	24	0.05	0.1
1994		0.025	0.025	*	0.10	0.18	0.047	14	0.05	*
1993		0.025	0.025	0.048	0.12	0.15	0.040	24	0.05	0.2
1992		0.025	0.025	0.049	0.13	0.18	0.046	24	0.05	0.2
1991		0.025	0.025	0.046	0.10	0.20	0.042	24	0.05	0.2
1990		0.025	*	*	*	1.2	0.407	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.