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	Annual Toxics Summary North Long Beach FAQs Benzo(k)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		0.025	0.025	0.055	0.12	0.19	0.048	31	0.05	0.02
2003		0.025	0.025	0.038	0.06	0.12	0.025	31	0.05	0.01
2002		0.025	0.025	0.052	0.13	0.18	0.047	31	0.05	0.02
2001		0.025	0.025	0.068	0.15	0.44	0.088	28	0.05	0.02
2000		0.025	0.025	0.060	0.16	0.33	0.073	31	0.05	0.02
1999		0.025	0.025	0.074	0.18	0.28	0.075	30	0.05	0.02
1998		0.025	0.025	0.077	0.19	0.65	0.122	30	0.05	0.02
1997		0.025	0.025	0.084	0.20	0.34	0.083	31	0.05	0.03
1996		0.025	0.025	*	0.12	0.24	0.058	20	0.05	*
1995		0.025	0.025	0.070	0.16	0.31	0.077	24	0.05	0.02
1994		0.025	0.12	*	0.31	0.55	0.145	14	0.05	*
1993		0.025	0.08	0.140	0.34	0.54	0.148	24	0.05	0.04
1992		0.025	0.025	0.168	0.55	0.85	0.232	24	0.05	0.05
1991		0.025	0.06	*	0.19	0.64	0.153	19	0.05	*
1990		0.025	0.06	0.162	0.44	0.60	0.185	24	0.05	0.05
1989		0.025	0.025	*	0.30	0.74	0.186	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.