Trace elements and heavy metals in the Grand Bay National Estuarine Reserve in the northern Gulf of Mexico

MARINE POLLUTION BULLETIN

卷:99

Article

McComb, Jacqueline Q.¹  Han, Fengxiang X.^1,2  Rogers, Christian¹  Thomas, Catherine³  Arslan, Zikri²  Ardeshir, Adeli⁴  Tchounwou, Paul B.¹ 

[1] Jackson State Univ, Environm PhD Sci, Jackson, MS 39217 USA

[2] Jackson State Univ, Dept Chem & Biochem, Jackson, MS 39217 USA

[3] US Army Engineer Res & Dev Ctr ERDC, Vicksburg, MS 39180 USA

[4] USDA ARS, Genet & Precis Agr Res Unit, Mississippi State, MS 39762 USA

关键词: Environmental impact;    Estuarine chemistry;    Trace elements;    Biogeochemical process;    Lead isotopes;    Grand Bay Reserve;   

DOI  :  10.1016/j.marpolbul.2015.07.062

来源: Elsevier

【 摘 要 】

The objectives of this study are to investigate distribution of trace elements and heavy metals in the salt marsh and wetland soil and biogeochemical processes in the Grand Bay National Estuarine Research Reserve of the northern Gulf of Mexico. The results show that Hg, Cd and to some extent, As and Pb have been significantly accumulated in soils. The strongest correlations were found between concentrations of Ni and total organic matter contents. The correlations decreased in the order: Ni > Cr > Sr > Co > Zn, Cd > Cu > Cs. Strong correlations were also observed between total P and concentrations of Ni, Co, Cr, Sr, Zn, Cu, and Cd. This may be related to the P spilling accident in 2005 in the Bangs Lake site. Lead isotopic ratios in soils matched well those of North American coals, indicating the contribution of Pb through atmospheric fallout from coal power plants. (C) 2015 Elsevier Ltd. All rights reserved.

【 授权许可】

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