Year | Arsenic | Zinc | Mercury | Cadmium | Chromium | Nickel | Lead | Copper | Selenium | Vanadium |
---|
1980 | 20.83 | 106.24 | 9.28 | 7.30 | 20.88 | 65.57 | 574.24 | 40.79 | 4.81 | 232.24 |
1985 | 21.57 | 115.30 | 9.05 | 6.89 | 21.71 | 72.80 | 531.98 | 38.58 | 4.66 | 239.66 |
1990 | 4.04 | 70.78 | 3.08 | 1.73 | 17.88 | 26.93 | 815.40 | 18.35 | 6.51 | 144.50 |
1991 | 3.54 | 68.46 | 2.95 | 1.68 | 13.09 | 29.56 | 712.16 | 16.31 | 6.04 | 158.47 |
1992 | 3.28 | 54.55 | 2.62 | 1.59 | 10.69 | 31.46 | 276.68 | 14.54 | 6.05 | 156.94 |
1993 | 3.36 | 58.63 | 2.67 | 1.64 | 11.74 | 36.05 | 241.17 | 14.81 | 5.84 | 173.43 |
1994 | 3.28 | 54.04 | 2.58 | 1.58 | 12.32 | 34.58 | 192.99 | 14.20 | 5.59 | 165.36 |
1995 | 3.29 | 52.68 | 2.24 | 1.56 | 11.98 | 33.29 | 142.85 | 14.15 | 5.85 | 144.36 |
1996 | 3.36 | 51.76 | 2.18 | 1.53 | 12.08 | 31.76 | 114.03 | 14.18 | 6.23 | 128.81 |
1997 | 3.33 | 50.58 | 2.10 | 1.51 | 11.21 | 33.56 | 97.07 | 14.73 | 6.24 | 134.47 |
1998 | 3.34 | 46.97 | 2.01 | 1.48 | 11.56 | 30.60 | 90.76 | 15.56 | 6.26 | 132.08 |
1999 | 3.30 | 46.15 | 2.00 | 1.43 | 11.56 | 29.55 | 28.58 | 16.16 | 6.22 | 123.29 |
2000 | 3.14 | 56.13 | 1.96 | 1.69 | 12.14 | 21.33 | 18.75 | 16.23 | 5.83 | 108.01 |
2001 | 3.11 | 59.53 | 1.96 | 1.78 | 12.58 | 17.61 | 19.24 | 17.09 | 5.71 | 107.44 |
2002 | 3.11 | 51.04 | 1.90 | 1.44 | 12.41 | 12.75 | 20.28 | 18.09 | 5.49 | 82.15 |
2003 | 3.00 | 56.56 | 1.89 | 1.51 | 12.53 | 11.16 | 20.74 | 18.97 | 5.60 | 75.59 |
2004 | 2.84 | 53.93 | 1.79 | 1.35 | 12.21 | 9.90 | 19.53 | 19.93 | 5.10 | 63.22 |
2005 | 2.52 | 51.68 | 1.65 | 1.23 | 12.10 | 7.83 | 10.57 | 20.87 | 4.16 | 60.20 |
2006 | 2.48 | 53.03 | 1.25 | 1.24 | 12.75 | 8.76 | 9.81 | 26.70 | 3.96 | 62.89 |
2007 | 2.57 | 49.43 | 1.21 | 1.28 | 13.60 | 8.68 | 9.38 | 27.21 | 4.14 | 61.79 |
2008 | 2.54 | 47.57 | 1.24 | 1.25 | 12.83 | 9.45 | 11.12 | 42.16 | 4.01 | 63.04 |
2009 | 2.40 | 54.82 | 1.11 | 1.40 | 9.98 | 8.39 | 8.96 | 29.04 | 3.63 | 66.06 |
2010 | 2.23 | 58.38 | 1.10 | 1.47 | 11.35 | 6.99 | 8.27 | 20.72 | 3.59 | .. |
2011 | 2.26 | 67.98 | 1.08 | 1.61 | 11.80 | 7.89 | 9.39 | 19.75 | 3.72 | .. |
2012 | 2.11 | 72.05 | 1.09 | 1.68 | 11.02 | 6.83 | 9.28 | 19.23 | 3.65 | .. |
2013 | 1.83 | 67.40 | 0.96 | 1.69 | 8.05 | 6.24 | 8.81 | 18.15 | 3.58 | .. |
2014 | 1.92 | 60.10 | 1.00 | 1.51 | 8.98 | 6.24 | 8.42 | 19.95 | 3.44 | .. |
2015 | 2.10 | 63.57 | 1.06 | 1.58 | 11.51 | 6.00 | 8.87 | 21.74 | 3.38 | .. |
2016 | 1.90 | 63.76 | 1.02 | 1.55 | 9.72 | 5.72 | 8.99 | 22.63 | 3.25 | .. |
2017 | 2.10 | 62.09 | 1.16 | 1.52 | 12.49 | 5.80 | 8.71 | 24.16 | 3.06 | .. |
2018 | 2.07 | 56.26 | 1.02 | 1.36 | 12.64 | 5.54 | 8.24 | 25.19 | 2.82 | .. |