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	Annual Toxics Summary Fremont-Chapel Way FAQs Titanium 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		4.5	4.5	*	4.5	12	2.2	17	9
2009		4.5	4.5	7.3	14	17	4.1	31	9
2008		11	30	44.6	100	160	33.6	30	1
2007		4.5	10	12.7	23	46	10.2	29	9
2006		*	*	*	*	*	*	0	*
2005		*	*	*	*	*	*	0	*
2004		*	*	*	*	*	*	0	*
2003		25	*	*	*	81	20.6	5	3
2002		10	54	*	96	110	29.1	24	3
2001		5	49	*	82	100	25.3	27	10
2000		5	37	55.0	110	150	39.2	28	10
1999		5	56	61.3	100	260	48.0	28	10
1998		16	44	64.9	110	410	78.4	25	10
1997		5	38	*	100	200	40.5	28	10
1996		5	37	54.8	130	160	46.8	30	10
1995		5	45	53.7	100	170	41.1	30	10
1994		5	51	53.4	96	130	33.8	29	10
1993		5	42	58.3	120	190	46.8	29	10
1992		5	42	48.5	79	110	26.3	31	10
1991		14	61	75.5	130	270	55.4	29	10
1990		35	79	*	160	220	52.6	15	10
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.