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	Annual Toxics Summary Riverside-Rubidoux 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	0.04	0.005	20	0.03
2022		0.015	0.015	0.015	0.015	0.015	0.000	29	0.03
2021		0.015	0.015	*	0.015	0.015	0.000	22	0.03
2020		0.015	*	*	*	0.015	0.000	7	0.03
2019		0.015	0.015	*	0.015	0.015	0.000	26	0.03
2018		*	*	*	*	*	*	0	*
2017		0.015	0.015	*	0.015	0.015	0.000	20	0.03
2016		0.015	0.015	0.017	0.015	0.07	0.009	30	0.03
2015		0.015	0.015	*	0.015	0.04	0.006	25	0.03
2014		0.015	0.015	0.019	0.04	0.05	0.010	28	0.03
2013		0.015	0.015	0.016	0.015	0.03	0.003	31	0.03
2012		0.015	0.015	0.020	0.04	0.06	0.012	30	0.03
2011		0.015	0.015	0.016	0.015	0.05	0.007	31	0.03
2010		0.015	0.015	0.016	0.015	0.04	0.004	31	0.03
2009		0.015	0.015	*	0.015	0.04	0.008	27	0.03
2008		0.015	0.015	0.016	0.015	0.03	0.004	30	0.03
2007		0.015	0.015	0.017	0.03	0.05	0.010	30	0.03
2006		0.015	0.015	0.022	0.05	0.06	0.014	29	0.03
2005		0.015	0.015	0.020	0.04	0.06	0.012	31	0.03
2004		0.015	0.015	0.023	0.06	0.09	0.020	30	0.03
2003		0.015	0.015	0.028	0.06	0.10	0.022	30	0.03
2002		0.015	0.015	*	0.05	0.13	0.025	25	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.