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	Annual Toxics Summary Roseville-N Sunrise Blvd FAQs Zinc nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2023		4.99	20	*	38	47	13.4	21	9.98
2022		15	26	32.0	53	75	15.2	30	9.98
2021		4.99	27	*	48	63	14.1	23	9.98
2020		14	*	*	*	86	27.3	7	9.98
2019		4.99	23	26.3	52	62	16.3	30	9.98
2018		4.99	31	*	59	66	17.9	25	9.98
2017		5	33	32.1	55	95	19.1	29	10
2016		5	25	29.9	55	81	17.6	31	10
2015		12	35	39.7	55	90	16.5	28	10
2014		4.2	21	49.0	53	610	109	30	8.4
2013		7	24	*	59	67	17.3	23	5.2
2012		13	28	*	34	66	11.4	20	9
2011		4.5	25	*	39	44	10.1	23	9
2010		10	*	*	*	38	10.0	10	9
2009		12	28	*	47	58	12.8	28	9
2008		*	*	*	*	*	*	0	*
2007		17	31	*	44	72	11.6	25	3
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		25	*	*	*	100	27.5	5	1
2002		16	36	39.0	68	79	19.1	30	1
2001		9	32	37.1	64	80	20.6	31	2
2000		6	34	38.6	66	74	19.4	28	2
1999		23	49	48.0	73	88	17.8	29	2
1998		19	47	52.6	82	120	26.2	29	2
1997		7	36	46.3	82	120	29.2	29	2
1996		6	35	40.0	64	100	22.0	31	2
1995		7	30	34.5	70	80	20.9	30	2
1994		9	34	37.2	62	89	19.1	30	2
1993		12	22	*	55	63	15.0	24	2
1992		*	*	*	*	*	*	0	*
1991		*	*	*	*	*	*	0	*
1990		*	*	*	*	*	*	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.