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	Annual Toxics Summary Simi Valley-Cochran Street FAQs Calcium nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2024		*	*	*	*	*	*	0	*
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	*	*	*	2000	822	4	4
2002		340	1100	1080	1800	2500	578	29	4
2001		86	800	*	1600	2000	536	24	3
2000		52	650	*	1100	1200	346	15	3
1999		150	1100	*	1600	1900	526	27	3
1998		41	660	647	1100	1900	415	29	3
1997		77	670	793	1200	3600	624	31	3
1996		31	1000	838	1500	1800	510	29	3
1995		57	740	1010	2000	2400	709	31	3
1994		190	840	*	1500	2200	530	27	3
1993		64	690	837	1500	2900	628	31	3
1992		120	750	*	1400	2100	527	22	3
1991		100	880	943	1500	2100	478	28	3
1990		360	1400	*	2800	4900	1180	16	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.