Ecotoxicological evaluation for the screening of areas polluted by mining activities |
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Authors: | M L García-Lorenzo M J Martínez-Sánchez C Pérez-Sirvent J Molina |
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Institution: | (1) University of Murcia, Murcia, Spain; |
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Abstract: | The aim of this study was to evaluate the applicability of three bioassays representing multiple trophic levels, for the preliminary
ecotoxicological screening of sediments from sites contaminated by mining activities. Of the bioassays used in this study,
the ostracod test was the most responsive. Vibrio fischeri luminiscence inhibition assay was less sensitive to the toxicants in the sediments than the phytotoxicity assays. The general
trend observed was an increase in toxicity values measured by the bioassays with increasing metal mobilization in sediment
samples. Therefore, the test battery can be used as a rapid and sensitive tool to evaluate the heavy metal contamination in
sediments. |
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