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Title: A contribution towards the risk assessment of soils from the São Domingos mine (Portugal): chemical, microbial and ecotoxicological indicators
Author: Alvarenga, Paula
Palma, Patrícia
Varennes, A.
Queda, C. Cunha
Keywords: bioavailability
mine soils
risk assessment
trace elements
Issue Date: 2012
Publisher: Elsevier
Citation: "Environmental Pollution". ISSN 0269-7491. 161 (2012) 50-56
Abstract: This study is a contribution towards a risk assessment of the São Domingos Mine area (Portugal), integrating information from: soil physicochemical characteristics, pseudo-total and bioavailable trace elements (As, Cd, Cr, Cu, Ni, Pb and Zn), ecotoxicological evaluation, and microbial indicators. The bioassays using soil eluates (seed germination, luminescent inhibition of Vibrio fischeri and Daphnia magna immobilization) confirmed the soil toxicity categorization obtained with the bioassays using soil (plant growth tests, Eisenia fetida mortality and avoidance behaviour). However, the soil identified as the most toxic using bioassays, was different from the expected when considering the results from pseudototal and effective bioavailable trace elements. Taking in consideration the observations, it is highly recommended to complement the results from environmental chemistry with results from bioassays, in order to provide a more complete and relevant information on the bioavailability of contaminants and to characterize the risk of contaminated soils.
Description: Available at SciVerse ScienceDirect
Peer review: yes
ISSN: 0269-7491
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Appears in Collections:DCEB - Artigos de Revistas

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