期刊
ENVIRONMENTAL POLLUTION
卷 179, 期 -, 页码 326-342出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.envpol.2013.04.027
关键词
Bioassays; Soil; pH tolerance; Metal contamination; Bioavailability; Risk screening
资金
- Sweden America Foundation
- Knut and Alice Wallenberg Foundation
To improve risk estimates at the screening stage of Ecological Risk Assessment (ERA), short duration bioassays tailored to undisturbed soil cores from the contaminated site could be useful. However, existing standardized bioassays use disturbed soil samples and often pH sensitive organisms. This is a problem as naturally acidic soils are widespread. Changing soil properties to suit the test organism may change metal bioavailability, leading to erroneous risk estimates. For bioassays in undisturbed soil cores to be effective, species able to withstand natural soil properties must be identified. This review presents a critical examination of bioassay species' tolerance of acidic soils and sensitivity to metal contaminants such as Pb and Zn. Promising organisms include; Dendrobaena octaedra, Folsomia candida, Caenorhabditis elegans, Oppia nitens, Brassica rapa, Trifolium pratense, Allium cepa, Quercus rubra and Acer rubrum. The MetSTICK test and the Bait lamina test were also identified as suitable microorganism tests. (C) 2013 Elsevier Ltd. All rights reserved.
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