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	Annual Toxics Summary Burbank-W Palm Avenue FAQs Zinc 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		15	41	*	100	140	37.6	12	8.4
2013		25	62	*	120	130	33.4	24	5.2
2012		25	56	*	79	100	19.4	22	9
2011		19	69	*	83	140	27.5	16	9
2010		26	44	*	88	100	23.0	13	9
2009		19	62	64.7	92	140	25.7	28	9
2008		*	*	*	*	*	*	0	*
2007		37	66	*	130	140	34.2	21	3
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		43	*	*	*	100	23.4	5	1
2002		23	83	85.3	120	150	31.3	30	1
2001		21	66	*	120	140	31.3	28	2
2000		31	85	86.1	120	170	35.4	31	2
1999		21	69	*	100	140	29.7	25	2
1998		29	66	77.6	96	350	59.1	29	2
1997		19	67	*	100	170	31.9	29	2
1996		25	76	*	120	140	28.3	23	2
1995		13	76	83.2	140	190	48.1	31	2
1994		23	78	*	120	220	40.1	27	2
1993		19	79	81.3	130	170	38.1	31	2
1992		34	92	114	150	750	128	31	2
1991		21	99	100	160	180	43.8	28	2
1990		65	110	*	160	230	42.8	15	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.