Mobilization of trace metals in a tropical turbid estuary influenced by a monsoon season
作者： S. M. Nair , A. N. Balchand , K. J. Prashob Peter , P. Shaiju
DOI: 10.1007/S12665-012-2170-5
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摘要: The selective removal of trace metals by suspended matter in high turbidity zones plays a major role the fluvial transport terrigenous to marine environment. seasonal longitudinal variability elements (Cu, Zn, Cd, Ni, Pb, Fe, and Mn) Cochin estuary, tropical positive was studied results were compared with prevailing situation other subtropical waterways. hydrodynamical features showed increasing downstream salinities during both seasons. In contrast temperate estuaries where development maxima causes metals, tropics modify way redistribution between dissolved particulate fractions intermediate salinities. distributional are primarily influenced variations river discharges. Consequently, this gives rise two different types patterns: (1) premonsoon, estuarine reactivity is more pronounced hence, mid-estuarine solubilization metal appears play prominent controlling fluxes (2) but monsoon, hydrological conditions influence physical dilution than chemical reactivity.
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