𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The use of bioassay and associated tests in dredged material and disposal management

✍ Scribed by Charles R. Lee; Richard K. Peddicord; Bobby L. Folsom; John G. Skogerboe

Publisher
Springer
Year
1987
Tongue
English
Weight
400 KB
Volume
149
Category
Article
ISSN
1573-5141

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✦ Synopsis

Plant bioassays and simulated rainfall-surface runoff tests have been developed and are being refined to assist in the evaluation of the environmental impact of dredged material disposal alternatives. Plant bioassay tests have been used to give appropriate information to describe the potential for contaminant mobility from dredged material into plants colonizing wetland and upland disposal environments. Index plants have shown elevated contents of Cd, Zn, Cu, Cr and Pb when grown on contaminated dredged material placed in a terrestrial disposal environment. Simulated rainfall-surface runoff water quality tests are being developed to determine the potential for contaminant mobility resulting from physicochemical changes in dredged material following upland disposal.

A management strategy has been developed that incorporates the above test results for a selection of environmentally acceptable dredged material disposal alternatives.

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