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	Annual Toxics Summary Stockton-Hazelton Street FAQs Aluminum 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		350	*	*	*	1200	320	5	4
2002		27	1800	1770	2900	5200	1090	35	4
2001		270	1300	1750	3200	6200	1300	35	5
2000		160	1500	1610	2500	7300	1310	33	5
1999		310	1500	1790	2800	10000	1730	31	5
1998		280	1300	1620	2500	7500	1450	31	5
1997		86	2000	2050	3300	6300	1300	29	5
1996		140	1500	1530	2800	3400	979	32	5
1995		260	1300	*	3600	6000	1560	27	5
1994		180	1800	1960	3200	5500	1200	34	5
1993		340	2000	2310	4400	8500	1760	31	5
1992		300	2200	2320	4100	6300	1490	30	5
1991		520	3000	3170	5200	9000	1920	31	5
1990		910	3100	*	7000	8800	2350	17	5
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.