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	Annual Toxics Summary San Jose-4th Street FAQs Benzo(b)fluoranthene-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	*	*
2002		0.025	*	*	*	0.76	0.266	10	0.05	*
2001		0.025	0.025	0.167	0.34	2.4	0.438	31	0.05	0.05
2000		0.025	0.025	0.173	0.61	1.2	0.277	30	0.05	0.06
1999		0.025	0.08	0.219	0.69	1.4	0.313	30	0.05	0.07
1998		0.025	0.07	0.202	0.68	1.1	0.290	31	0.05	0.06
1997		0.025	0.06	0.221	0.41	1.6	0.353	30	0.05	0.07
1996		0.025	0.06	0.149	0.47	0.72	0.201	24	0.05	0.05
1995		0.025	0.13	0.256	0.42	2.3	0.465	24	0.05	0.08
1994		0.10	0.39	*	1.94	2.9	0.839	14	0.05	*
1993		0.025	0.14	0.576	1.67	3.8	0.933	24	0.05	0.2
1992		0.025	0.15	0.458	1.63	2.4	0.686	24	0.05	0.1
1991		0.025	0.13	0.310	0.85	1.2	0.351	24	0.05	0.1
1990		0.025	0.13	0.787	1.7	6.2	1.64	24	0.05	0.3
1989		0.025	0.19	*	1.96	2.4	0.796	18	0.05	*

	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.