Effect of Cadmium, Copper and Lead on the Growth of Rice in the Coal Mining Region of Quang Ninh, Cam-Pha (Vietnam)

J. Eduardo Marquez, Olivier Pourret, Michel-Pierre Faucon, Sebastian Weber, Thi Bích Hòa Hoàng and Raul E. Martinez
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J. Eduardo Marquez: Institute for Earth and Environmental Science, Albert-Ludwigs University, 79104 Freiburg, Germany
Olivier Pourret: AGHYLE, UniLaSalle, 60026 Beauvais cedex, France
Michel-Pierre Faucon: AGHYLE, UniLaSalle, 60026 Beauvais cedex, France
Sebastian Weber: Institute for Earth and Environmental Science, Albert-Ludwigs University, 79104 Freiburg, Germany
Thi Bích Hòa Hoàng: Institute for Earth and Environmental Science, Albert-Ludwigs University, 79104 Freiburg, Germany
Raul E. Martinez: Institute for Earth and Environmental Science, Albert-Ludwigs University, 79104 Freiburg, Germany

Sustainability, 2018, vol. 10, issue 6, 1-16

Abstract: The goal of this study was to quantify the mobility and partitioning of trace elements originating from mine waste rocks derived from open pit coal extraction activities. The results showed that native rice plants were adapted to growing in metal contaminated soils, posing a severe health risk to local population. Sequential extraction procedures and bulk soil chemical analyses both suggest enrichment of Cd, Pb and Cu in rice paddy soils. Lead was shown to be evenly partitioned among all mineral and organic phases. Copper was associated with carbonates and organic matter. Smaller fractions of Pb and Cu were also bound to Fe and Mn oxides. Only 25% of Cd, 9% of Pb and 48% of Cu were associated with the exchangeable fraction, considered mobile and thus bioavailable for plant uptake. Effects of Cd, Cu and Pb on local Cam Pha Nep cai Hoa vang , and control Asia Italian rice, showed marked differences in growth. The local Vietnamese variety grew close to control values, even upon exposure to higher trace metal concentrations. Whereas the development of the control rice species was significantly affected by increasing trace metal concentrations. This result suggests toxic trace elements accumulation in the edible parts of crops.

Keywords: open-pit coal mining; Oryza sativa L.; rice plant contamination; contaminated paddy soil; metals (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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