California Home	ARB:	Home	Search	Site Map				Contact Us

	Annual Toxics Summary Fontana-Arrow Highway 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		0.025	0.025	0.025	0.025	0.025	0.000	29	0.05	0.08
2002		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
2001		0.025	0.025	0.027	0.025	0.07	0.008	29	0.05	0.09
2000		0.025	0.025	0.025	0.025	0.025	0.000	31	0.05	0.08
1999		0.025	0.025	0.025	0.025	0.025	0.000	30	0.05	0.08
1998		0.025	0.025	*	0.025	0.07	0.009	23	0.05	*
1997		*	*	*	*	*	*	0	*	*
1996		*	*	*	*	*	*	0	*	*
1995		*	*	*	*	*	*	0	*	*
1994		*	*	*	*	*	*	0	*	*
1993		*	*	*	*	*	*	0	*	*
1992		*	*	*	*	*	*	0	*	*
1991		*	*	*	*	*	*	0	*	*
1990		*	*	*	*	*	*	0	*	*
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.