FATE OF MERCURY IN THE ARCTIC Michael Evan ... - COGCI

Depth (cm)
Depth (cm)
a
b
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0 10 20 30 40
0
-10
-20
-30
-40
-50
-60
-70
Ash (%)
-80
0 5 10 15
Ash (%)
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0 0.1 0.2 0.3
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0 50 100 150
Bulk Density (g/cm3) Hg (ng/g)
0
-10
-20
-30
-40
-50
-60
-70
-80
0 0.05 0.1 0.15 0.2
0
-10
-20
-30
-40
-50
-60
-70
-80
0 100 200 300
Bulk Density (g/cm3) Hg (ng/g)
Shotyk et al., "Atmospheric Hg, Pb, and As in peat from Greenland...", revised version, April 15, 2003
0
-10
-20
-30
-40
-50
-60
-70
-80
-90
0 5 10 15 20 25
0
-10
-20
-30
-40
-50
-60
-70
1973
AD 948 +/- 52
AD 938 +/- 48
Hg (ng/cm3)
1964
1981
1992
1962
-80
0 10 20 30 40 50
Hg (ng/cm3)
1956
AD 1683 to AD 1928
2395 +/- 45 14C yr BP
3225 +/- 50 14C yr BP
2935 +/- 50 14C yr BP
2970 +/- 50 14C yr BP
GREENLAND
2485 +/- 45 14C yr BP
2845 +/- 45 14C yr BP
1958
ca.17th to 20th C.
disturbance by peat cutting
DENMARK
FIGURE 2