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	Annual Toxics Summary Riverside-Rubidoux FAQs Indeno(1,2,3-cd)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	*	*
2004		0.025	0.06	0.099	0.27	0.37	0.104	31	0.05	0.03
2003		0.025	0.06	0.121	0.27	0.54	0.124	31	0.05	0.04
2002		0.025	0.09	0.157	0.39	0.62	0.164	31	0.05	0.05
2001		0.025	0.09	0.174	0.59	0.71	0.216	30	0.05	0.06
2000		0.025	0.13	0.192	0.52	1.2	0.257	31	0.05	0.06
1999		0.025	0.10	0.172	0.43	0.73	0.201	30	0.05	0.05
1998		0.025	0.14	0.249	0.56	1.7	0.343	29	0.05	0.08
1997		0.025	0.09	*	0.45	0.83	0.196	29	0.05	*
1996		0.025	0.15	0.248	0.64	1.0	0.254	24	0.05	0.08
1995		0.025	0.20	*	0.58	1.0	0.263	20	0.05	*
1994		0.07	0.51	*	0.86	1.0	0.289	14	0.05	*
1993		0.025	0.20	0.361	0.81	1.6	0.385	24	0.05	0.1
1992		0.025	0.15	0.297	0.64	1.8	0.388	24	0.05	0.09
1991		0.025	0.22	0.378	1.1	1.3	0.432	24	0.05	0.1
1990		0.06	*	*	*	1.0	0.292	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.