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	Annual Toxics Summary San Jose-4th Street FAQs Bromine 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		3	*	*	*	18	5.2	10	2
2001		1	7	8.0	16	26	6.3	30	2
2000		1	6	6.5	12	17	4.0	28	2
1999		3	7	7.8	13	19	3.8	30	2
1998		2	6	6.3	10	11	2.9	29	2
1997		1	6	7.0	13	25	5.3	30	2
1996		1	8	8.3	13	18	3.7	28	2
1995		1	6	5.6	10	18	4.0	30	2
1994		2	8	8.5	15	18	4.0	31	2
1993		1	8	8.3	13	14	3.5	29	2
1992		1	9	9.4	14	17	3.6	30	2
1991		2	8	7.7	14	16	4.0	28	2
1990		2	10	*	17	24	6.2	15	2
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.