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

Read About Estimated Risk

Year	Months Present	Minimum	Median	Mean	90th Percentile	Maximum	Standard Deviation	Number of Observations	Detection Limit	Estimated Risk
2023		0.0215	0.0215	*	0.05	0.09	0.018	18	0.043	*
2022		0.0215	0.0215	0.396	0.06	13	2.37	30	0.043	164
2021		0.0215	0.0215	*	0.06	0.09	0.023	26	0.043	*
2020		0.0215	*	*	*	0.0215	0.00	9	0.043	*
2019		0.0215	0.0215	0.027	0.0215	0.08	0.014	33	0.043	11
2018		0.03	0.01	*	0.04	0.07	0.016	20	0.02	*
2017		0.03	0.03	*	0.06	0.16	0.03	23	0.06	*
2016		0.03	*	*	*	0.03	*	21	0.06	*
2015		0.03	*	0.03	*	0.03	*	27	0.06	12
2014		0.03	*	*	*	0.03	*	13	0.06	*
2013		0.03	*	*	*	0.03	*	20	0.06	*
2012		0.03	*	0.03	*	0.03	*	28	0.06	12
2011		0.03	*	0.03	*	0.03	*	28	0.06	12
2010		0.03	*	0.03	*	0.03	*	28	0.06	12
2009		0.03	*	0.03	*	0.03	*	28	0.06	12
2008		0.03	*	0.03	*	0.03	*	28	0.06	12
2007		0.03	*	0.038	*	0.06	*	27	0.06	16
2006		0.03	*	0.03	*	0.03	*	28	0.06	12
2005		0.03	*	0.045	*	0.09	*	28	0.06	19
2004		0.03	*	*	*	0.06	*	21	0.06	*
2003		0.03	*	0.053	*	0.09	*	28	0.06	22
2002		0.03	*	0.078	*	0.15	*	28	0.06	32
2001		0.1	0.1	*	0.1	0.3	0.04	30	0.2	*
2000		0.1	0.1	0.10	0.1	0.2	0.02	34	0.2	43
1999		0.1	0.1	0.10	0.1	0.3	0.03	35	0.2	43
1998		0.1	0.1	0.10	0.1	0.1	0.00	35	0.2	42
1997		0.1	0.1	0.10	0.1	0.1	0.00	33	0.2	42
1996		0.1	0.1	0.13	0.2	0.3	0.05	33	0.2	53
1995		0.1	0.3	0.26	0.4	0.5	0.11	35	0.2	109
1994		0.1	0.1	*	0.2	0.3	0.07	27	0.2	*
1993		*	*	*	*	*	*	0	*	*
1992		*	*	*	*	*	*	0	*	*
1991		*	*	*	*	*	*	0	*	*
1990		*	*	*	*	*	*	0	*	*
1989		*	*	*	*	*	*	0	*	*

2002 and later data based on quarterly composites; percentiles and standard deviation cannot be determined.
	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.