NDLI: Minerals as additives for decreasing the toxicity of Mediterranean contaminated dredged sediments.

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Minerals as additives for decreasing the toxicity of Mediterranean contaminated dredged sediments.

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Minerals as additives for decreasing the toxicity of Mediterranean contaminated dredged sediments.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Mamindy-Pajany, Y. Galgani, F. Roméo, M. Hurel, C. Marmier, N.
Spatial Coverage	France Mediterranean Sea
Description	Country affiliation: France Author Affiliation: Mamindy-Pajany Y ( University of Nice Sophia-Antipolis, Faculté des Sciences, Laboratoire de Radiochimie, Sciences Analytiques et Environnement, BP 71, 28, Avenue Valrose, 06108 Nice Cedex 02, France.)
Abstract	The management of dredged sediments is a priority issue in the Mediterranean sea where sediments are historically polluted. The aims of this study were to evaluate the toxicity of port sediment samples and the effect of three mineral additives (hematite, zerovalent iron (ZVI) and natural zeolite (NZ)) on sediment elutriate toxicity. Four sediments (A, B, C and D) were provided by port authorities after composting procedure; particle size, particulate organic carbon, metals and organic pollutants (TBT, PAHs, PCBs) were determined in whole sediments. Elutriates from these composted sediments were analyzed by determining toxicity level using oyster (Crassostrea gigas) larvae bioassay, metal and dissolved organic carbon concentrations. Toxicity, measured on undiluted elutriates (250 g/L), decreased as follows: A≥B>Câ¼D. The treatment of sediments with mineral additives (5%) revealed that hematite tends to decrease the elutriate toxicity in all samples, particularly in samples B and C. This effect may be related to metal concentration decrease in elutriates, in particular Cu and Zn, that have a significant toxic effect on oyster larvae. ZVI and NZ have a variable influence on elutriate toxicity. Results suggest that hematite may be a possible candidate for decreasing chemical concentration and improving the quality of elutriates. Hematite could be used for sediment stabilization prior to the deposit in a specific site or landfill.
File Format	HTM / HTML
ISSN	01476513
Issue Number	7
Volume Number	73
e-ISSN	10902414
Journal	Ecotoxicology and Environmental Safety
Language	English
Publisher	Elsevier
Publisher Date	2010-10-01
Publisher Place	Netherlands
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Environmental Sciences Environmental Pollutants Analysis Toxicity Environmental Restoration And Remediation Methods Geologic Sediments Chemistry Ostreidae Drug Effects Analysis Of Variance Animals Carbon Ferric Compounds France Iron Mediterranean Sea Metals, Heavy Particle Size Polychlorinated Biphenyls Polycyclic Hydrocarbons, Aromatic Toxicity Tests Trialkyltin Compounds Zeolites Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Pollution Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health

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Minerals as additives for decreasing the toxicity of Mediterranean contaminated dredged sediments.

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