California Home	ARB:	Home	Search	Site Map				Contact Us

	Annual Toxics Summary San Francisco-Arkansas Street FAQs Methyl Bromide parts per billion

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2023		0.015	0.015	*	0.015	0.015	0.000	19	0.03
2022		0.015	0.015	0.015	0.015	0.015	0.000	30	0.03
2021		0.015	0.015	*	0.015	0.015	0.000	23	0.03
2020		0.015	*	*	*	0.015	0.000	9	0.03
2019		0.015	0.015	0.015	0.015	0.015	0.000	30	0.03
2018		0.015	0.015	0.015	0.015	0.015	0.000	31	0.03
2017		0.015	0.015	0.015	0.015	0.015	0.000	29	0.03
2016		0.015	0.015	0.017	0.015	0.08	0.012	30	0.03
2015		0.015	0.015	0.015	0.015	0.015	0.000	30	0.03
2014		0.015	0.015	0.017	0.015	0.04	0.005	30	0.03
2013		0.015	0.015	0.016	0.015	0.05	0.005	31	0.03
2012		0.015	0.015	0.019	0.03	0.06	0.009	29	0.03
2011		0.015	0.015	0.015	0.015	0.015	0.000	31	0.03
2010		0.015	0.015	0.016	0.015	0.04	0.005	29	0.03
2009		0.015	0.015	0.015	0.015	0.015	0.000	28	0.03
2008		0.015	0.015	0.015	0.015	0.015	0.000	31	0.03
2007		0.015	0.015	0.015	0.015	0.015	0.000	29	0.03
2006		0.015	0.015	0.018	0.015	0.05	0.009	30	0.03
2005		0.015	0.015	0.017	0.015	0.07	0.010	31	0.03
2004		0.015	0.015	0.015	0.015	0.03	0.003	30	0.03
2003		0.015	0.015	0.015	0.015	0.015	0.000	31	0.03
2002		0.015	0.015	*	0.03	0.08	0.018	15	0.03
2001		*	*	*	*	*	*	0	*
2000		*	*	*	*	*	*	0	*
1999		*	*	*	*	*	*	0	*
1998		*	*	*	*	*	*	0	*
1997		*	*	*	*	*	*	0	*
1996		*	*	*	*	*	*	0	*
1995		*	*	*	*	*	*	0	*
1994		*	*	*	*	*	*	0	*
1993		*	*	*	*	*	*	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.