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Published on: July 1, 2016
Metals of the bottom muds in Townsville Harbor, Australia
1College of Marine Studies, University of Delaware, Newark, Delaware 19716, USA.
Abstract:
Samples of Townsville Harbor bottom mud were acid leached (0.3 m HCl) to measure bioavailability of Cd, Co, Cu, Fe, Mn, Ni, Pb, Sn and Zn. Three of seven samples showed enrichment factors relative to average soil of 25-30 for Cd, 5-71 for Cu, 21-81 for Pb, and 13-37 for Zn. The other four samples were only high in Cd, Pb, and Zn by an enrichment factor of 2-7. Considering that this harbor is in the middle of the environmentally sensitive Great Barrier Reef area, the disposal of the dredged harbor muds poses a special problem.
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