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	Annual Toxics Summary Chula Vista 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	*	*	*	1400	487	5	4
2002		360	780	886	1300	2400	463	30	4
2001		260	730	685	950	1400	250	28	3
2000		230	620	*	1200	1400	366	11	3
1999		43	710	*	860	2100	436	17	3
1998		200	580	707	1100	2000	385	27	3
1997		150	690	724	1000	1900	366	29	3
1996		210	470	553	990	1300	276	30	3
1995		220	630	636	1000	1400	301	29	3
1994		220	680	727	920	2300	381	30	3
1993		190	530	663	1000	2000	375	27	3
1992		160	610	601	1000	1300	289	28	3
1991		280	480	574	820	1100	209	29	3
1990		340	720	*	1500	1600	392	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.