Year
|
Arsenic and compounds (As)
|
Cadmium and compounds (Cd)
|
Chromium and compounds (Cr)
|
Copper and compounds (Cu)
|
Lead and compounds (Pb)
|
Mercury and compounds (Hg)
|
Nickel and compounds (Ni)
|
Zinc and compounds (Zn)
|
2007
|
3.5
|
0.5
|
3.4
|
19.7
|
4.0
|
0.0
|
4.5
|
99.6
|
2008
|
1.9
|
0.2
|
3.3
|
27.7
|
2.9
|
0.0
|
3.4
|
95.7
|
2009
|
1.7
|
0.3
|
4.0
|
29.5
|
4.2
|
0.1
|
5.2
|
175.2
|
2010
|
1.3
|
0.2
|
2.6
|
91.6
|
2.6
|
0.0
|
3.2
|
127.1
|
2011
|
1.3
|
0.1
|
2.5
|
32.6
|
1.9
|
0.0
|
3.0
|
108.7
|
2012
|
0.9
|
0.2
|
1.0
|
18.2
|
1.2
|
0.0
|
7.3
|
56.5
|
2013
|
1.1
|
0.1
|
1.1
|
40.3
|
1.3
|
0.0
|
3.8
|
68.2
|
2014
|
0.9
|
0.1
|
0.8
|
37.9
|
0.8
|
0.0
|
3.4
|
64.4
|
2015
|
0.7
|
0.1
|
0.7
|
7.8
|
0.9
|
0.0
|
3.6
|
54.8
|
2016
|
0.5
|
0.1
|
0.7
|
23.1
|
0.6
|
0.0
|
2.1
|
42.7
|
2017
|
2.6
|
1.2
|
3.4
|
32.0
|
6.2
|
0.2
|
4.3
|
167.6
|
2018
|
3.4
|
0.9
|
1.3
|
16.4
|
9.6
|
0.1
|
2.9
|
161.4
|
2019
|
31.4
|
3.1
|
1.1
|
14.6
|
13.4
|
0.1
|
2.8
|
105.6
|
2020
|
2.1
|
3.6
|
1.0
|
21.7
|
20.0
|
0.3
|
2.7
|
149.3
|