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(Article of periodic en Anglais - 2009)

Document title

Soil and sediment properties affecting the accumulation of mercury in a flood control reservoir

Authors(s) and Affiliation(s)

RHOTON F.E. (1) ; BENNETT S.J. (2) ;
(1) USDA-ARS National Sedimentation Lab., MS, Oxford, ETATS-UNIS
(2) Dep. of Geography, Univ., Buffalo, ETATS-UNIS

Abstract

Mercury accumulations in some fish species from Grenada Lake in north Mississippi exceed the Food and Drug Administration standards for human consumption. This study was conducted to characterize the distribution of total Hg in watershed soils and determine the relationship between the easily transportable clay, organic C (OC), and Fe oxide fractions and the movement of Hg from upland sources to reservoir sinks. Cores were collected from soils, of different land-use, representative of the three soil orders (Alfisols, Entisols, and Vertisols) found in the watersheds. The higher correlations for the lake sediment reflect an enrichment of the Hg-laden clay fraction relative to stream sediment through flocculation and sedimentation processes in the slack-water environment of the reservoir

Source

Article of periodic

published at : Catena / ISSN 0341-8162

Editor : Catena, Cremlingen-Destedt - ALLEMAGNE (1973)

Millesime : 2009, vol. 79, no1 [pp. 39-48]

Bibliographic references : 30 ref.

Collation : 7 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 16767

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1016/j.catena.2009.05.004

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2010
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