Spatial variation of copper and lead concentrations of water hyacinth plants in a wetland receiving urban run-off
Date
1997
Authors
Vesk, P.A.
Allaway, W.G.
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Abstract
The spatial distribution of trace metals within the wetland environment determines their availability to the biota in the immediate area. In this study, metal concentrations in sediments, roots and leaves were found to decrease exponentially with distance from the inflow point. In addition, concentrations were found to be greater in the finer secondary roots as compared to the coarser primary roots. Therefore, sampling of wetlands must allow for these factors when assessing a wetland's pollution status.
Description
p. 33-44
Keywords
aquatic plants, wetlands, estuaries, point source pollution, copper, lead, sea grass, pollution