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	Annual Toxics Summary San Jose-4th Street FAQs Sulfur 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		280	*	*	*	1100	285	10	2
2001		170	570	591	860	1300	285	30	2
2000		100	590	599	890	1600	291	28	2
1999		250	610	713	1300	1800	396	30	2
1998		210	460	503	800	1100	227	29	2
1997		160	490	570	940	1500	313	30	2
1996		160	530	619	1200	1300	352	28	2
1995		63	540	561	960	1600	324	30	2
1994		100	540	574	1000	1300	312	31	2
1993		220	650	763	1300	1800	402	29	2
1992		310	840	866	1400	1700	379	30	2
1991		250	760	754	1000	1200	306	28	2
1990		360	730	*	1200	1600	333	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.