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	Annual Toxics Summary Stockton-Hazelton 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	*
2022		*	*	*	*	*	*	0	*
2021		0.015	0.015	*	0.015	0.015	0.000	18	0.03
2020		0.015	*	*	*	0.015	0.000	7	0.03
2019		0.015	0.015	0.017	0.015	0.04	0.007	29	0.03
2018		0.015	0.015	0.020	0.04	0.07	0.013	30	0.03
2017		0.015	0.015	0.019	0.015	0.07	0.013	28	0.03
2016		0.015	0.015	0.019	0.015	0.11	0.018	29	0.03
2015		0.015	0.015	0.024	0.06	0.07	0.017	30	0.03
2014		0.015	0.015	0.035	0.06	0.23	0.047	31	0.03
2013		0.015	0.015	0.021	0.03	0.10	0.017	30	0.03
2012		0.015	0.015	0.022	0.05	0.07	0.017	30	0.03
2011		0.015	0.015	0.045	0.14	0.18	0.054	29	0.03
2010		0.015	0.015	0.031	0.08	0.11	0.030	30	0.03
2009		0.015	0.015	0.068	0.16	0.41	0.085	31	0.03
2008		0.015	0.015	0.078	0.18	0.61	0.120	31	0.03
2007		0.015	0.05	0.182	0.53	1.6	0.324	30	0.03
2006		0.015	0.06	0.183	0.46	1.4	0.284	30	0.03
2005		0.015	0.04	0.134	0.39	0.69	0.193	31	0.03
2004		0.015	0.04	0.131	0.24	1.1	0.221	30	0.03
2003		0.015	0.04	0.088	0.29	0.48	0.123	30	0.03
2002		0.015	0.05	0.144	0.41	0.90	0.216	27	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.