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	Annual Toxics Summary Fresno-1st Street FAQs Zinc 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		4.5	25	*	69	100	24.7	25	9
2010		12	31	*	56	64	16.4	17	9
2009		12	30	*	53	100	19.0	30	9
2008		*	*	*	*	*	*	0	*
2007		13	43	*	75	91	23.0	19	3
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		13	*	*	*	64	15.4	7	1
2002		14	37	41.9	79	95	21.7	29	1
2001		5	33	35.5	59	76	18.7	32	2
2000		10	32	40.1	80	120	26.9	29	2
1999		6	31	*	60	83	19.4	25	2
1998		8	30	34.5	60	68	17.2	26	2
1997		4	32	40.4	72	87	22.1	30	2
1996		6	26	29.6	51	95	18.3	29	2
1995		7	31	38.6	69	120	26.9	31	2
1994		8	31	*	44	72	15.2	25	2
1993		9	38	44.0	85	96	24.9	29	2
1992		12	39	44.3	68	94	19.7	31	2
1991		10	40	*	71	100	25.5	25	2
1990		16	53	*	93	130	31.0	16	2
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.