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	Annual Toxics Summary San Jose-Jackson Street FAQs Zinc nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2025		4.99	25	*	56	76	18.9	16	9.98
2024		11	35	39.6	67	92	21.4	28	5.1
2023		4.99	27	*	77	90	24.7	26	9.98
2022		13	31	38.0	72	100	22.2	33	9.98
2021		4.99	26	*	61	90	21.2	25	9.98
2020		13	*	*	*	120	43.2	9	9.98
2019		4.99	26	37.4	84	125	32.6	29	9.98
2018		4.99	31	*	110	353	72.7	23	9.98
2017		5	48	56.9	120	149	37.9	30	10
2016		5	36	39.5	60	100	19.5	31	10
2015		13	43	47.3	76	103	22.9	30	10
2014		4.2	35	35.4	54	110	25.0	29	8.4
2013		13	37	*	66	880	164	27	5.2
2012		16	31	*	67	100	21.9	22	9
2011		10	24	*	62	72	19.7	13	9
2010		10	28	*	55	70	17.2	18	9
2009		4.5	27	*	41	62	13.7	27	9
2008		*	*	*	*	*	*	0	*
2007		19	39	*	59	140	26.0	19	3
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		26	*	*	*	99	26.5	5	1
2002		20	*	*	*	68	20.0	6	1
2001		*	*	*	*	*	*	0	*
2000		*	*	*	*	*	*	0	*
1999		*	*	*	*	*	*	0	*
1998		*	*	*	*	*	*	0	*
1997		*	*	*	*	*	*	0	*
1996		*	*	*	*	*	*	0	*
1995		*	*	*	*	*	*	0	*
1994		*	*	*	*	*	*	0	*
1993		*	*	*	*	*	*	0	*
1992		*	*	*	*	*	*	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.