NDLI: Waste Disposal in the Marine Environment. 1. Biological Availability of Heavy Metals to Marine Invertebrates

Content Provider	IEEE Xplore Digital Library
Author	Breteler, R. Neff, J.
Copyright Year	1983
Description	Author affiliation: New England Marine research Lab., Duxbury, MA, USA (Breteler, R.)
Abstract	Anthropogenic wastes such as fly ash, drilling muds, dredged materials and sewage sludge often contain significant amounts of trace metals. Disposal of these materials in coastal or marine waters may result in metal contamination of bottom sediments. There exists considerable uncertainty about the ultimate availability of these metals to the marine fauna, either through direct uptake of desorbed trace elements by deposit-feeding and suspension-feeding benthic invertebrates, or through food-web biomagnification processes. The relative importance of these different pathways of metal transfer is still poorly understood. Field investigations augmented by laboratory studies have shown that the rate and degree of metal contamination by marine organisms is controlled by a number of interacting factors. Predictions of metal concentrations in marine organisms exposed to metal contaminated sediments are therefore difficult to make. This paper is a summary of results from recent field investigations and laboratory studies and will focus on the relative bioavailability of particulate-bound metals from a variety of man-induced sources. The relative importance of sediment organic content, grain size, salinity, redox potential, pH and level of contamination of the sediment will be discussed with respect to the availability of toxic metals to various marine organisms and in relation to recent investigations conducted by the authors.
Starting Page	905
Ending Page	910
File Size	445768
Page Count	6
File Format	PDF
DOI	10.1109/OCEANS.1983.1151973
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1983-08-29
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sediments Biological materials Organisms Laboratories Inorganic materials Sea measurements Water pollution Contamination Conducting materials Chemical elements
Content Type	Text
Resource Type	Article

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Waste Disposal in the Marine Environment. 1. Biological Availability of Heavy Metals to Marine Invertebrates