In order to analyze the spatial distribution patterns, pollution sources and ecological risks of heavy metals
(As, Cd, Cr, Cu, Mn, Ni, Pb and Zn), 30 sediment samples were taken from in the Yangtze River Estuary
(YRE). The results indicated that the contamination ranking of heavy metals was As > Cr > Cd > Ni > Mn >
Pb > Zn > Cu. In the various areas, the pollution magnitude decreased as follows: adjacent sea > river
mouth > inner-region. Compared to data published for other regions, the YRE data indicated that the sediment
was not severely contaminated by heavy metals. In the YRE, natural and anthropogenic inputs
dominated the distribution patterns of the heavy metals. Beyond that, the hydrodynamic conditions, such
as the Taiwan warm current, coastal current and Yangtze diluted water, also caused distribution variations
in the study areas.
In order to analyze the spatial distribution patterns, pollution sources and ecological risks of heavy metals(As, Cd, Cr, Cu, Mn, Ni, Pb and Zn), 30 sediment samples were taken from in the Yangtze River Estuary(YRE). The results indicated that the contamination ranking of heavy metals was As > Cr > Cd > Ni > Mn >Pb > Zn > Cu. In the various areas, the pollution magnitude decreased as follows: adjacent sea > rivermouth > inner-region. Compared to data published for other regions, the YRE data indicated that the sedimentwas not severely contaminated by heavy metals. In the YRE, natural and anthropogenic inputsdominated the distribution patterns of the heavy metals. Beyond that, the hydrodynamic conditions, suchas the Taiwan warm current, coastal current and Yangtze diluted water, also caused distribution variationsin the study areas.
การแปล กรุณารอสักครู่..