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	Annual Toxics Summary Burbank-W Palm Avenue FAQs Strontium 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		7.6	12	*	18.7	20	4.15	12	1.2
2013		3.0	12.5	*	20.5	30	6.34	26	1.5
2012		3.1	9.2	10.3	16.4	18	4.37	29	1.5
2011		2.2	12	*	16	25	4.64	21	1.5
2010		0.75	8.2	*	15	16	3.99	26	1.5
2009		1.9	11	13.3	18.2	63	10.5	30	1.5
2008		*	*	*	*	*	*	0	*
2007		4.0	9.7	11.2	20.7	25	5.68	24	1.5
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		9.0	*	*	*	31	9.10	5	1.0
2002		7.0	17.5	19.3	29	41	7.78	30	1.0
2001		4.0	13.5	*	23.3	26	6.21	28	2.0
2000		3.0	14	14.9	21	31	6.22	31	2.0
1999		7.0	16	*	28.6	110	19.9	25	2.0
1998		5.0	14	13.5	19.2	23	4.67	29	2.0
1997		4.0	17	*	25	30	6.99	29	2.0
1996		2.0	16	*	21	24	5.99	23	2.0
1995		3.0	13	14.6	24	41	8.31	31	2.0
1994		4.0	16	*	23	34	7.18	27	2.0
1993		3.0	16	16.3	26	48	9.22	31	2.0
1992		5.0	16	21.3	29	160	30.0	31	2.0
1991		4.0	17.5	19.7	33.5	46	10.3	28	2.0
1990		13	23	*	35	40	8.75	15	2.0
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.