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

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2024		1.4	3.2	*	14.9	16.1	5.51	12	0.07
2023		1.43	5.5	*	7.7	9.4	2.46	24	2.86
2022		3.7	7.2	9.96	16.2	41.4	7.49	30	2.86
2021		1.43	6.6	*	17.1	21	5.42	23	2.86
2020		4.8	*	*	*	24.8	8.66	7	2.86
2019		1.43	9.9	12.0	21.3	56.5	10.5	30	2.86
2018		3.3	12.8	*	25.1	34	7.89	26	2.86
2017		1.43	12.9	16.1	25.2	60.2	11.5	29	2.86
2016		1.43	13	19.6	34.9	107	23.3	31	2.86
2015		4.6	13.1	19.3	44.5	62.9	16.4	28	2.86
2014		3.05	40	62.2	170	240	65.0	30	6.1
2013		1.7	42	*	74.7	130	28.3	28	1.5
2012		5.9	15	*	31.1	37	8.66	20	1.5
2011		2.3	22	*	49.4	190	42.2	19	1.5
2010		4.7	17.5	*	36.5	54	13.8	16	1.5
2009		4.3	16	*	40.5	45	11.9	26	1.5
2008		*	*	*	*	*	*	0	*
2007		6.7	17.5	20.7	34.9	45	9.75	28	1.5
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		12	*	*	*	37	9.56	5	1.0
2002		4.0	16	19.2	34.4	56	13.0	30	1.0
2001		4.0	15	21.7	52	84	19.9	31	2.0
2000		4.0	13.5	20.9	33.7	61	13.3	28	2.0
1999		5.0	23	39.7	64.2	430	78.3	29	2.0
1998		6.0	33	47.7	120	180	45.0	29	2.0
1997		7.0	58	69.0	130	200	47.9	29	2.0
1996		5.0	45	60.4	140	200	50.1	31	2.0
1995		6.0	56	48.7	96.1	140	35.2	30	2.0
1994		9.0	36	47.8	98.1	110	32.3	30	2.0
1993		4.0	33.5	*	96.7	120	35.1	24	2.0
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.