California Home	ARB:	Home	Search	Site Map				Contact Us

	Annual Toxics Summary Simi Valley-Cochran Street FAQs Vanadium nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2023		1.04	1.04	*	1.04	2.2	0.28	19	2.08
2022		1.04	1.04	1.34	2.3	3.4	0.68	31	2.08
2021		1.04	1.04	*	1.04	2.8	0.51	22	2.08
2020		1.04	*	*	*	2.2	0.41	8	2.08
2019		1.04	1.04	1.67	3.1	3.8	0.94	29	2.08
2018		1.04	2.3	2.21	3.4	6.1	1.29	34	2.08
2017		1.04	1.04	1.96	3.4	5.3	1.26	29	2.08
2016		1.04	1.04	*	2.3	2.8	0.59	28	2.08
2015		1.04	1.04	1.10	1.04	2.4	0.26	30	2.08
2014		1.2	1.2	1.54	3.2	3.7	0.85	30	2.4
2013		0.6	0.6	*	3.1	3.7	0.99	26	1.2
2012		0.75	0.75	0.85	0.75	2.2	0.32	28	1.5
2011		0.75	0.75	*	2.2	10	1.91	25	1.5
2010		0.75	0.75	*	2.3	3.4	0.83	25	1.5
2009		0.75	1.6	2.13	4.4	7.6	1.78	31	1.5
2008		*	*	*	*	*	*	0	*
2007		0.75	3.6	*	5.9	8.6	2.26	23	1.5
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		1	*	*	*	12	4.97	4	2.0
2002		5.0	11	10.8	19	23	5.68	29	2.0
2001		5	12.5	*	23.7	160	31.3	24	10
2000		5	5	*	11.2	12	2.66	15	10
1999		5	5	*	11.4	16	2.90	27	10
1998		5	5	5.46	5	11	1.42	29	10
1997		5	5	5.58	5	12	1.93	31	10
1996		5	5	6.31	11.2	15	3.16	29	10
1995		5	5	6.75	13	17	3.82	31	10
1994		5	5	*	11	18	3.32	27	10
1993		5	5	7.60	12	36	6.09	31	10
1992		5	5	*	12	13	3.18	22	10
1991		5	11	11.0	17	22	5.24	28	10
1990		5	12.5	*	21	23	6.33	16	10
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.