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	Annual Toxics Summary Bakersfield-5558 California Avenue FAQs Benzo(a)pyrene-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	*	*	*	0.26	0.092	5	0.05	*
2004		0.025	0.025	0.132	0.33	1.1	0.227	29	0.05	0.4
2003		0.025	0.025	0.131	0.43	1.1	0.238	31	0.05	0.4
2002		0.025	0.025	0.190	0.50	1.0	0.259	30	0.05	0.6
2001		0.025	0.025	0.187	0.59	1.7	0.389	31	0.05	0.6
2000		0.025	0.025	0.197	0.52	1.6	0.359	30	0.05	0.6
1999		0.025	0.025	0.208	0.70	1.2	0.356	30	0.05	0.7
1998		0.025	0.07	0.196	0.62	1.4	0.322	31	0.05	0.6
1997		0.025	0.05	0.282	0.57	2.3	0.476	30	0.05	0.9
1996		0.025	0.06	0.219	0.58	1.3	0.366	24	0.05	0.7
1995		0.025	0.09	0.255	0.49	1.9	0.436	24	0.05	0.8
1994		0.07	*	*	*	3.3	1.07	8	0.05	*
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.