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	Annual Toxics Summary Stockton-Hazelton Street FAQs Phosphorus 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		4	*	*	*	57	19.1	5	2
2002		8	54	55.3	95	150	33.1	35	2
2001		18	50	58.2	86	170	31.8	35	15
2000		19	51	61.6	91	250	41.2	33	15
1999		25	52	58.8	85	180	34.8	31	15
1998		18	56	68.1	93	220	44.6	31	15
1997		16	53	63.9	96	180	37.6	29	15
1996		7.5	46	52.4	98	140	29.0	32	15
1995		7.5	16	*	99	180	47.4	27	15
1994		7.5	27	*	54	110	26.0	16	15
1993		*	*	*	*	*	*	0	*
1992		1	21	*	69	100	25.9	20	2
1991		1	41	44.1	68	170	36.4	31	2
1990		1	37	*	120	180	49.6	17	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.