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Tin
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2023
0.78 0.78 * 0.78 2.7 0.45 19 1.56
2022
0.78 0.78 1.18 2.2 3.9 0.82 31 1.56
2021
0.78 0.78 * 2.7 3.3 0.86 22 1.56
2020
0.78 * * * 3.0 1.03 8 1.56
2019
0.78 1.9 1.84 3.5 3.8 1.03 29 1.56
2018
0.78 2.0 2.14 3.7 4.8 1.29 34 1.56
2017
0.78 0.78 1.59 3.6 5.2 1.32 29 1.56
2016
0.78 1.7 * 3.1 5.9 1.20 28 1.56
2015
0.78 0.78 1.11 2.2 2.5 0.62 30 1.56
2014
1 1 2.24 4.5 5.4 1.55 30 2.0
2013
0.8 0.8 * 0.8 3.5 0.56 26 1.6
2012
1.5 1.5 1.72 1.5 5.0 0.72 28 3.0
2011
1.5 * * * 1.5 0.00 4 3.0
2010
1.5 1.5 1.50 1.5 1.5 0.00 28 3.0
2009
1.5 1.5 1.50 1.5 1.5 0.00 31 3.0
2008
* * * * * * 0 *
2007
0.75 0.75 * 1.7 1.9 0.41 17 1.5
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
2.5 * * * 2.5 0.00 4 5.0
2002
2 2 4.29 7.4 16 3.35 29 4.0
2001
2 4.5 * 8.7 16 3.37 24 4.0
2000
2 2 * 2 6.0 1.12 15 4.0
1999
2 2 * 5.8 11 2.39 27 4.0
1998
2 2 2.53 4.2 8.0 1.38 29 4.0
1997
2 2 2.00 2 2 0.00 31 4.0
1996
2 2 2.00 2 2 0.00 29 4.0
1995
2 2 2.14 2 5.0 0.64 31 4.0
1994
2 2 * 4.4 8.0 1.58 27 4.0
1993
2 2 2.86 6.0 7.0 1.57 31 4.0
1992
2 * * * 9.0 2.54 10 4.0
1991
* * * * * * 0 *
1990
* * * * * * 0 *
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.