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	Annual Toxics Summary Bakersfield-5558 California Avenue FAQs Methyl Chloroform parts per billion

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2023		0.005	0.005	*	0.005	0.005	0.000	15	0.01
2022		0.005	0.005	0.005	0.005	0.005	0.000	29	0.01
2021		0.005	0.005	*	0.005	0.005	0.000	23	0.01
2020		0.005	*	*	*	0.005	0.000	7	0.01
2019		0.005	0.005	0.005	0.005	0.005	0.000	29	0.01
2018		0.005	0.005	0.005	0.005	0.005	0.000	36	0.01
2017		0.005	0.005	0.005	0.005	0.005	0.000	30	0.01
2016		0.005	0.005	0.005	0.005	0.005	0.000	31	0.01
2015		0.005	0.005	0.006	0.005	0.03	0.005	30	0.01
2014		0.005	0.005	*	0.005	0.01	0.002	15	0.01
2013		0.005	0.005	*	0.005	0.005	0.000	23	0.01
2012		0.005	0.01	0.013	0.02	0.15	0.025	33	0.01
2011		0.005	0.01	0.014	0.02	0.04	0.008	33	0.01
2010		0.01	0.02	0.017	0.03	0.05	0.009	30	0.01
2009		0.01	0.02	0.018	0.02	0.03	0.005	34	0.01
2008		0.01	0.02	0.022	0.03	0.10	0.015	33	0.01
2007		0.01	0.02	0.019	0.02	0.03	0.004	32	0.01
2006		0.02	0.02	0.027	0.04	0.06	0.011	30	0.01
2005		0.02	0.02	0.024	0.03	0.05	0.007	31	0.01
2004		0.02	0.03	*	0.03	0.03	0.003	25	0.01
2003		0.03	0.03	0.032	0.04	0.04	0.004	29	0.01
2002		0.03	0.04	0.040	0.04	0.05	0.003	30	0.01
2001		0.03	0.04	0.042	0.05	0.08	0.009	31	0.01
2000		0.04	0.05	0.062	0.10	0.12	0.022	30	0.01
1999		0.05	0.06	*	0.08	0.10	0.013	16	0.01
1998		0.04	0.05	*	0.08	0.27	0.045	28	0.01
1997		0.06	0.08	0.104	0.15	0.24	0.048	32	0.01
1996		0.07	0.10	0.118	0.18	0.42	0.068	32	0.01
1995		0.07	0.15	0.219	0.42	0.97	0.186	32	0.01
1994		0.06	0.20	*	1.2	4.9	1.03	23	0.01
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.