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	Annual Toxics Summary Bakersfield-5558 California Avenue FAQs Mercury nanograms per cubic meter

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
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		1.5	*	*	*	1.5	0.0	5	3
2002		1.5	1.5	1.7	3	4	0.6	36	3
2001		1.5	1.5	1.6	1.5	4	0.5	39	3
2000		1.5	1.5	1.6	1.5	4	0.5	40	3
1999		1.5	1.5	1.8	3	5	0.8	39	3
1998		1.5	1.5	1.5	1.5	1.5	0.0	42	3
1997		1.5	1.5	1.9	3	5	0.9	34	3
1996		1.5	1.5	1.6	1.5	4	0.5	36	3
1995		1.5	1.5	1.5	1.5	1.5	0.0	30	3
1994		1.5	1.5	*	1.5	1.5	0.0	25	3
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.