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	Annual Toxics Summary San Jose-4th Street FAQs Chromium 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		1	*	*	*	7	1.9	10	2
2001		1	4	4.6	8	17	3.4	30	2
2000		1	4	4.5	7	15	2.8	28	2
1999		1	4	4.5	8	17	3.4	30	2
1998		1	5	5.0	10	13	3.3	29	2
1997		1	4	4.6	8	9	2.3	30	2
1996		1	4	3.9	6	9	2.3	28	2
1995		1	4	4.6	11	14	3.9	30	2
1994		1	5	5.7	9	29	5.2	31	2
1993		1	6	6.7	10	17	3.9	29	2
1992		1	6	6.4	10	22	4.2	30	2
1991		1	6	8.7	16	25	6.1	28	2
1990		1	6	5.8	9	15	3.1	30	1
1989		2	7	7.7	12	19	3.6	57	1

	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.