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	Annual Toxics Summary San Jose-4th Street FAQs Calcium nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2025		*	*	*	*	*	*	0	*
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		*	*	*	*	*	*	0	*
2002		590	*	*	*	1700	370	10	9
2001		250	1200	1430	2500	4000	911	30	3
2000		180	1100	1320	1900	3900	771	28	3
1999		410	1000	1180	1800	2800	611	30	3
1998		280	730	1000	1800	3100	700	29	3
1997		150	890	960	1600	1900	478	30	3
1996		200	860	895	1500	1700	460	28	3
1995		75	740	976	1700	3200	777	30	3
1994		170	1000	979	1600	2700	564	31	3
1993		230	1000	1050	1800	3100	607	29	3
1992		260	1000	1120	1700	2500	517	30	3
1991		300	1000	1240	2300	2800	697	28	3
1990		530	1300	*	1500	2300	397	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.