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Zinc
nanograms per cubic meter
Year Months
Present
Minimum Median Mean 90th
Percentile
Maximum Standard
Deviation
Number of
Observations
Detection
Limit
2023
4.99 23 * 49 54 15.8 20 9.98
2022
4.99 24 28.3 57 69 17.1 31 9.98
2021
13 27 * 55 60 15.8 23 9.98
2020
15 * * * 71 21.8 8 9.98
2019
4.99 24 30.7 66 92 22.2 30 9.98
2018
4.99 35 * 62 112 24.6 25 9.98
2017
5 25 32.0 64 82 22.1 30 10
2016
5 36 * 80 88 24.2 27 10
2015
5 23 29.5 61 82 20.4 30 10
2014
4.2 17 22.1 48 65 16.9 31 8.4
2013
2.6 22 * 41 54 13.4 24 5.2
2012
10 25 * 42 63 13.3 20 9
2011
9 17 * 40 51 12.8 21 9
2010
4.5 17 * 30 64 13.7 15 9
2009
4.5 35 36.1 57 72 16.0 30 9
2008
* * * * * * 0 *
2007
16 35 * 62 87 19.1 19 3
2006
* * * * * * 0 *
2005
* * * * * * 0 *
2004
* * * * * * 0 *
2003
16 * * * 82 24.7 5 1
2002
14 42 48.2 88 110 25.2 30 1
2001
11 35 40.1 72 130 25.9 28 2
2000
13 36 * 79 100 27.1 11 2
1999
1 21 * 39 100 22.9 17 2
1998
15 29 36.0 57 62 15.9 27 2
1997
11 34 36.7 56 81 17.5 29 2
1996
4 24 30.7 54 85 19.5 30 2
1995
9 28 32.0 57 110 21.2 29 2
1994
9 28 34.8 55 150 27.1 30 2
1993
11 29 37.8 67 76 20.1 27 2
1992
8 24 30.6 52 78 18.3 28 2
1991
7 22 30.2 51 82 18.7 29 2
1990
15 30 * 60 85 19.0 16 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.