International Journal of Analytical Chemistry / 2015 / Article / Tab 8

Research Article

Risk Assessment and Prediction of Heavy Metal Pollution in Groundwater and River Sediment: A Case Study of a Typical Agricultural Irrigation Area in Northeast China

Table 8

Morphologic analysis of heavy metals in sediment.

NumberHeavy metalsProportion of various forms % Morphological distribution order
A (weak acid-extractable form)B
(reducible form)
C
(oxidizable form)
D
(residual form)

N19-2Cr(VI)D > C > B > A
AsD > B > A > C
CdD > A > B > C
PbD > B > A > C

S20-1Cr(VI)D > C > B > A
AsD > B > A > C
CdD > A > B > C
PbD > B > A > C

N21-1Cr(VI)D > C > B > A
AsD > A > B > C
CdD > A > B > C
PbD > B > A > C

N21-2Cr(VI)D > C > B > A
AsD > B > C > A
CdD > A > C > B
PbD > B > C > A

Note: the data are the mean standard deviation.

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