Temporal dynamics of pore water concentrations of Cd, Co, Cu, Ni, and Zn and their controlling factors in a contaminated floodplain soil assessed by undisturbed groundwater lysimeters

Sabry M Shaheen; Jörg Rinklebe; Holger Rupp; Ralph Meissner

doi:10.1016/j.envpol.2014.04.035

Temporal dynamics of pore water concentrations of Cd, Co, Cu, Ni, and Zn and their controlling factors in a contaminated floodplain soil assessed by undisturbed groundwater lysimeters

Environ Pollut. 2014 Aug:191:223-31. doi: 10.1016/j.envpol.2014.04.035. Epub 2014 May 23.

Authors

Sabry M Shaheen¹, Jörg Rinklebe², Holger Rupp³, Ralph Meissner³

Affiliations

¹ University of Kafrelsheikh, Faculty of Agriculture, Department of Soil and Water Sciences, 33 516 Kafr El-Sheikh, Egypt; University of Wuppertal, Department D, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany.
² University of Wuppertal, Department D, Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany. Electronic address: rinklebe@uni-wuppertal.de.
³ Helmholtz Centre for Environmental Research - UFZ, Department of Soil Physics, Lysimeter station Falkenberg, Dorfstr. 55, 39615 Falkenberg, Germany.

PMID: 24861239
DOI: 10.1016/j.envpol.2014.04.035

Abstract

We aimed to assess the dynamics of pore water concentrations of Cd, Co, Cu, Ni, Zn and their controlling factors (EH, pH, DOC, Fe, Mn, and SO4(2-)) in a contaminated floodplain soil under different flood-dry-cycles. Two parallel undisturbed groundwater lysimeters (mean values presented) were used for long term (LT; 94 days) and short term (ST; 21 days) flood-dry-cycles. Reducing conditions under LT lead to low EH and pH, while DOC, Co, Fe, Mn, and Ni increased. Cadmium, Cu, Zn, and SO4(2-) increased under oxidizing conditions during ST. Cobalt and Ni revealed a similar behavior which seem to governed by EH/pH, Mn, Fe, and DOC. Cadmium, Cu, and Zn reveal a similar fate; their dynamics were affected by EH/pH, DOC, and SO4(2-). Our findings suggest that a release of Cd, Cu, Co, Fe, Mn, Ni, and Zn under different flood-dry-cycles can assumed what might create potential environmental risks in using metal-enriched floodplain soils.

Keywords: Flooding periods; Metals; Redox potential; Wetland soil.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Floods*
Groundwater / chemistry*
Metals, Heavy / analysis
Metals, Heavy / chemistry*
Soil / chemistry*
Soil Pollutants / analysis
Soil Pollutants / chemistry*

Substances

Metals, Heavy
Soil
Soil Pollutants