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	Annual Toxics Summary El Cajon-Redwood Avenue 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		290	*	*	*	1300	387	5	4
2002		370	1000	1110	1600	2100	457	29	4
2001		240	970	885	1300	1600	392	30	3
2000		280	1000	*	1500	1900	441	14	3
1999		210	800	*	1500	1800	417	20	3
1998		200	720	764	1200	1900	377	24	3
1997		140	790	755	1200	1300	346	27	3
1996		110	750	815	1500	1800	445	27	3
1995		99	830	*	1600	6700	1190	27	3
1994		180	680	*	1100	1800	352	27	3
1993		150	720	774	1100	2800	508	29	3
1992		97	700	741	1400	1700	466	26	3
1991		210	710	1160	1200	10000	1680	31	3
1990		320	910	*	1300	2100	422	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.