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	Annual Toxics Summary San Jose-4th Street FAQs Tin 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		*	*	*	*	*	*	0	*
2002		2	*	*	*	9.0	2.79	10	4.0
2001		2	2	2.53	4.3	8.0	1.65	30	4.0
2000		2	2	2.83	5.0	8.0	1.56	28	4.0
1999		2	2	2.61	4.1	7.0	1.44	30	4.0
1998		2	2	2.92	6.0	9.0	1.98	29	4.0
1997		2	2	2.32	2	7.0	1.15	30	4.0
1996		2	2	2.13	2	5.0	0.67	28	4.0
1995		2	2	3.03	5.1	11	2.17	30	4.0
1994		2	2	2.86	5.0	8.0	1.61	31	4.0
1993		2	2	2.83	5.4	10	2.04	29	4.0
1992		2	*	*	*	8.0	2.36	10	4.0
1991		*	*	*	*	*	*	0	*
1990		*	*	*	*	*	*	0	*
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.