California Home	ARB:	Home	Search	Site Map				Contact Us

	Annual Toxics Summary Chula Vista FAQs Aluminum nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2024		*	*	*	*	*	*	0	*
2023		*	*	*	*	*	*	0	*
2022		*	*	*	*	*	*	0	*
2021		*	*	*	*	*	*	0	*
2020		*	*	*	*	*	*	0	*
2019		*	*	*	*	*	*	0	*
2018		*	*	*	*	*	*	0	*
2017		*	*	*	*	*	*	0	*
2016		*	*	*	*	*	*	0	*
2015		*	*	*	*	*	*	0	*
2014		*	*	*	*	*	*	0	*
2013		*	*	*	*	*	*	0	*
2012		*	*	*	*	*	*	0	*
2011		*	*	*	*	*	*	0	*
2010		*	*	*	*	*	*	0	*
2009		*	*	*	*	*	*	0	*
2008		*	*	*	*	*	*	0	*
2007		*	*	*	*	*	*	0	*
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		120	*	*	*	1600	624	5	4
2002		210	870	1010	1700	2500	528	30	4
2001		290	890	904	1300	1600	362	28	5
2000		350	790	*	1700	2100	530	11	5
1999		78	970	*	1300	2800	618	17	5
1998		150	720	892	1500	2200	472	27	5
1997		130	920	994	1600	2700	572	29	5
1996		200	510	683	1300	1800	428	30	5
1995		200	840	899	1600	2300	516	29	5
1994		170	980	1060	1500	3100	581	30	5
1993		170	780	992	1600	2800	615	27	5
1992		180	890	961	1900	2400	588	28	5
1991		170	810	932	1400	2600	504	29	5
1990		300	1200	*	2800	3400	919	16	5
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.