Journal
JOURNAL OF GEOCHEMICAL EXPLORATION
Volume 147, Issue -, Pages 130-138Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.gexplo.2014.05.019
Keywords
Bioassay; Microtox; Phytotoxicity; Ostracods; Phosphogypsum; Phosphate industry
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Phosphate Phosphogypsum (PG) is a waste product of the phosphoric acid production process and contains, generally, high activity concentrations of uranium series radionuclides. This study is a contribution towards a risk assessment in areas affected by phosphate industry in SW Spain, integrating information from soil physicochemical characteristics, total and soluble potentially toxic elements (Zn, Pb, Cd, Cu, As and Fe), mineralogical composition and ecotoxicological evaluation. The applied bioassays confirmed the soil toxicity categorisation and then, 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 characterise the risk of contaminated areas. (C) 2014 Elsevier By. All rights reserved.industry
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