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California Air Resources Board

Annual Toxics Summary
ARB's ADAM Air Quality Database
Fremont-Chapel Way FAQs
Yttrium
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
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 * * * 1 0.0 5 2
2002
1 1 * 3 3 0.8 24 2
2001
1 1 * 1 3 0.5 27 2
2000
1 1 1.0 1 1 0.0 28 2
1999
1 1 1.1 1 3 0.4 28 2
1998
1 1 1.1 1 4 0.6 25 2
1997
1 1 * 1 3 0.4 28 2
1996
1 1 1.0 1 2 0.2 30 2
1995
1 1 1.1 1 3 0.4 30 2
1994
1 1 1.0 1 2 0.2 29 2
1993
1 1 1.2 1 3 0.5 29 2
1992
1 1 1.2 2 3 0.5 31 2
1991
1 1 1.4 2 3 0.7 29 2
1990
1 1 * 2 2 0.4 15 2
1989
* * * * * * 0 *
Graph It!
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.