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	Annual Toxics Summary Chico-Manzanita Avenue FAQs Vanadium 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		0.75	0.75	*	2.4	3.0	0.80	12	1.5
2011		0.75	0.75	*	2.7	6.2	1.34	29	1.5
2010		0.75	0.75	1.14	2.1	3.3	0.70	30	1.5
2009		0.75	0.75	1.06	2.0	2.5	0.57	30	1.5
2008		*	*	*	*	*	*	0	*
2007		0.75	0.75	1.52	2.6	4.1	0.99	29	1.5
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		1	*	*	*	2.0	0.45	5	2.0
2002		5.0	5.0	6.65	12	14	3.48	31	2.0
2001		5	5	7.79	15.9	22	4.95	32	10
2000		5	5	5.21	5	10	0.90	31	10
1999		5	5	6.10	10.1	17	2.78	30	10
1998		5	5	5.31	5	11	1.36	32	10
1997		5	5	5.25	5	14	1.64	30	10
1996		5	5	5.75	5	13	1.92	29	10
1995		5	5	5.00	5	5	0.00	29	10
1994		5	5	6.26	11.1	16	2.93	30	10
1993		5	5	6.00	10.6	20	3.45	29	10
1992		5	5	*	15.5	19	5.01	16	10
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.