Table 2.

Speciation fractions of elements in soil samples at the depth of 3 and 1.8 m from Profile #8

ElementsSamplesTOTALFr1Fr2Fr3Fr4Fr5Fr6Fr7
As ppmP008-1011.40.050.030.061.553.650.046.20
P008-2210.10.030.020.141.382.650.035.10
Hg ×10−3 ppmP008-1033.00.100.100.905.601.205.2020.0
P008-2238.00.100.101.605.701.106.2023.0
Sb ppmP008-100.790.0080.0070.0130.0850.0080.0050.52
P008-220.730.0070.0040.0180.0210.0060.0060.57
Mn ppmP008-105903.6532.940.721.217922.0252
P008-226143.6333.710.418.514915.7277
Cu ppmP008-1021.70.0120.0330.573.014.320.5511.0
P008-2220.10.0150.0940.302.512.310.5411.4
Pb ppmP008-1035.60.020.060.8610.85.681.0515.0
P008-2233.80.030.010.4910.64.200.7617.0
Zn ppmP008-1059.90.050.760.923.117.593.7540.2
P008-2258.30.051.070.634.214.712.2134.5

Total, the ‘total’ element content; Fr1, water-soluble fraction; Fr2, exchangeable fraction; Fr3, fraction bound to carbonates; Fr4, bound to humic acid; Fr5, fraction bound to Fe-Mn oxides; Fr6, fraction bound to organic matter; Fr7, residuals.