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	Annual Toxics Summary Burbank-W Palm Avenue FAQs Barium 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		49	*	*	*	72	9.6	5	19
2002		9.5	81	88.5	150	190	38.4	30	19
2001		12.5	65	*	110	180	39.5	28	25
2000		12.5	69	78.1	110	220	41.9	31	25
1999		12.5	75	*	150	530	100	25	25
1998		12.5	60	62.6	90	160	30.2	29	25
1997		12.5	57	*	94	190	33.8	29	25
1996		12.5	59	*	81	110	20.9	23	25
1995		12.5	57	65.5	120	190	43.6	31	25
1994		12.5	52	*	100	200	40.6	27	25
1993		12.5	70	69.2	120	140	38.1	31	25
1992		12.5	50	70.9	120	510	89.1	31	25
1991		12.5	42	54.4	100	130	36.2	28	25
1990		12.5	55	*	140	170	47.6	15	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.