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Antimony
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2023
0.65 0.65 * 2 4 0.8 17 1.3
2022
0.65 0.65 1.5 3 7 1.4 31 1.3
2021
0.65 0.65 * 2 5 1.0 23 1.3
2020
0.65 * * * 7 2.2 9 1.3
2019
0.65 2 2.8 6 8 2.0 29 1.3
2018
0.65 3 4.1 7 26 4.7 30 1.3
2017
0.65 3 3.6 7 9 2.3 28 1.3
2016
0.65 2 4.1 8 38 6.8 30 1.3
2015
0.65 2 2.7 5 14 2.6 30 1.3
2014
0.85 3 3.2 6 12 2.6 30 1.7
2013
2 3 * 6 7 2.0 28 1.5
2012
1.5 1.5 2.2 5 7 1.6 30 3
2011
1.5 1.5 2.1 4 6 1.3 29 3
2010
1.5 1.5 2.6 7 8 2.1 30 3
2009
1.5 1.5 2.5 5 7 1.7 31 3
2008
* * * * * * 0 *
2007
1.5 3 * 7 11 2.9 13 3
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
3 * * * 9 2.7 6 6
2002
2.5 2.5 3.5 2.5 12 2.3 30 5
2001
2.5 2.5 3.6 7 14 2.5 31 5
2000
2.5 2.5 * 9 12 3.1 19 5
1999
2.5 2.5 * 7 8 1.9 20 5
1998
2.5 2.5 3.0 6 8 1.4 26 5
1997
2.5 2.5 2.9 2.5 9 1.4 28 5
1996
2.5 2.5 3.1 2.5 7 1.3 26 5
1995
2.5 2.5 3.7 6 8 1.9 30 5
1994
2.5 2.5 3.0 5 7 1.2 30 5
1993
2.5 2.5 3.5 6 8 1.8 27 5
1992
2.5 * * * 6 1.4 8 5
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.