Document of bibliographic reference 128805

BibliographicReference record

Type

Bibliographic resource

Type of document

Journal article

BibLvlCode

AS

Title

Mobility and toxicity of metals in sandy sediments deposited on land

Abstract

A times series of laboratory experiments were conducted to investigate the effect of land deposition of contaminated sediments on the bioavailability and mobility of metals. Four sandy sediments were sampled at sites expected to have elevated levels of cadmium and zinc. The physical and chemical characteristics and ecotoxicity of sediments, pore waters, and leachates were evaluated after periods ranging from 1 to 45 days of land deposition. Cd and Zn retardation and leaching potential were calculated and this simulation gave good predictions of subsequently observed Cd and Zn mobility. The mobility and leaching of Cd and Zn in the sediments increased with decreasing pH and with decreasing content of organic matter. During the deposition an increase in sediment toxicity to plants and an increase in eluate toxicity to invertebrates were observed. A high rate of water flow through the sediment resulted in a lower toxicity enhancement of the sediments and a higher toxicity enhancement of the eluates. This result suggests that water flow through the sediment reduces the actual toxicity of the upper layer of deposited sediment but at the same time intensifies the risk of groundwater contamination.

WebOfScience code

https://www.webofscience.com/wos/woscc/full-record/WOS:000180963300010

Bibliographic citation

Prokop, Z.; Vangheluwe, M.L.; Van Sprang, P.A.; Janssen, C.R.; Holoubek, I. (2003). Mobility and toxicity of metals in sandy sediments deposited on land. Ecotoxicol. Environ. Saf. 54(1): 65-73. https://dx.doi.org/10.1016/S0147-6513(02)00022-2

Is peer reviewed

true