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	Annual Toxics Summary Fremont-Chapel Way 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		0.07	*	*	*	0.36	0.141	5	0.05	*
2004		0.025	0.025	0.080	0.20	0.53	0.110	30	0.05	0.03
2003		0.025	0.06	0.099	0.21	0.56	0.121	31	0.05	0.03
2002		0.025	0.05	0.105	0.28	0.53	0.125	30	0.05	0.03
2001		0.025	0.07	0.159	0.45	0.93	0.242	31	0.05	0.05
2000		0.025	0.05	0.186	0.69	0.78	0.247	30	0.05	0.06
1999		0.025	0.09	0.218	0.66	1.1	0.272	30	0.05	0.07
1998		0.025	0.14	0.247	0.54	1.4	0.306	31	0.05	0.08
1997		0.025	0.09	0.149	0.28	0.91	0.197	30	0.05	0.05
1996		0.025	0.09	0.183	0.41	1.4	0.287	24	0.05	0.06
1995		0.025	0.20	0.270	0.51	1.0	0.231	24	0.05	0.09
1994		0.12	0.46	*	1.38	1.6	0.479	14	0.05	*
1993		0.025	0.23	0.540	1.45	2.0	0.589	24	0.05	0.2
1992		0.025	0.18	0.321	0.97	1.4	0.417	24	0.05	0.1
1991		0.025	0.24	0.531	1.2	3.3	0.812	24	0.05	0.2
1990		0.14	*	*	*	2.0	0.595	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.