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	Annual Toxics Summary Stockton-Hazelton Street FAQs Barium nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2025		*	*	*	*	*	*	0	*
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		9.5	*	*	*	41	13.7	5	19
2002		9.5	36	36.2	66	110	25.1	35	19
2001		12.5	29	32.0	50	130	24.8	35	25
2000		12.5	34	32.0	58	75	19.3	33	25
1999		12.5	28	29.5	54	91	20.5	31	25
1998		12.5	28	31.4	60	100	22.2	31	25
1997		12.5	38	39.4	67	97	21.4	29	25
1996		12.5	27	27.9	47	65	14.7	32	25
1995		12.5	12.5	*	64	120	27.3	27	25
1994		12.5	30	27.5	50	64	14.9	34	25
1993		12.5	32	38.0	72	160	30.2	31	25
1992		12.5	12.5	25.1	45	68	16.9	30	25
1991		12.5	12.5	26.0	44	120	23.0	31	25
1990		12.5	12.5	*	59	70	20.5	17	25
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.