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

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit
2024		*	*	*	*	*	*	0	*
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		28	*	*	*	53	9.7	5	19
2002		9.5	51	60.0	85	160	32.2	36	19
2001		12.5	47	50.6	92	130	28.5	39	25
2000		12.5	51	58.3	110	170	35.8	40	25
1999		12.5	48	47.9	89	150	30.8	39	25
1998		12.5	45	49.4	80	200	34.1	42	25
1997		12.5	48	51.9	81	110	24.3	34	25
1996		12.5	39	39.4	79	110	25.2	36	25
1995		12.5	46	50.8	100	120	35.0	30	25
1994		12.5	39	*	80	97	24.5	25	25
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.