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	Annual Toxics Summary Fremont-Chapel Way FAQs Calcium nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2023		*	*	*	*	*	*	0	*
2022		*	*	*	*	*	*	0	*
2021		*	*	*	*	*	*	0	*
2020		*	*	*	*	*	*	0	*
2019		*	*	*	*	*	*	0	*
2018		*	*	*	*	*	*	0	*
2017		*	*	*	*	*	*	0	*
2016		*	*	*	*	*	*	0	*
2015		*	*	*	*	*	*	0	*
2014		*	*	*	*	*	*	0	*
2013		*	*	*	*	*	*	0	*
2012		*	*	*	*	*	*	0	*
2011		*	*	*	*	*	*	0	*
2010		*	*	*	*	*	*	0	*
2009		*	*	*	*	*	*	0	*
2008		*	*	*	*	*	*	0	*
2007		*	*	*	*	*	*	0	*
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		250	*	*	*	720	187	5	4
2002		130	710	*	1300	1500	391	24	4
2001		120	550	*	950	1300	300	27	3
2000		110	530	635	1200	1700	405	28	3
1999		170	670	707	1100	1900	397	28	3
1998		200	500	718	1300	3000	592	25	3
1997		82	560	*	1600	4000	803	28	3
1996		150	500	850	1900	4100	935	30	3
1995		66	460	537	1000	1800	403	30	3
1994		78	570	565	1000	1200	317	29	3
1993		180	460	603	1100	1700	384	29	3
1992		88	490	517	880	1100	271	31	3
1991		130	560	628	1100	1700	375	29	3
1990		310	680	*	1300	1600	401	15	3
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.