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	Annual Toxics Summary San Jose-4th Street FAQs Phosphorus nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2024		*	*	*	*	*	*	0	*
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		29	*	*	*	72	13.8	10	15
2001		7.5	44	47.9	74	120	25.3	30	15
2000		15	44	46.1	68	120	21.7	28	15
1999		20	44	49.3	68	140	25.6	30	15
1998		7.5	42	47.4	82	120	24.9	29	15
1997		7.5	40	39.3	63	74	18.9	30	15
1996		7.5	34	34.2	60	72	19.0	28	15
1995		7.5	7.5	27.0	80	92	28.9	30	15
1994		7.5	7.5	*	34	44	12.4	16	15
1993		*	*	*	*	*	*	0	*
1992		1	14	*	33	52	14.3	20	2
1991		1	18	26.1	56	90	25.2	28	2
1990		1	17	*	61	69	23.6	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.