Comparison of solid-phase and eluate assays to gauge the ecotoxicological risk of organic wastes on soil organisms
Domene, Xavier (Xavier) (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Alcañiz, Josep M (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Andrés Pastor, Pilar (Centre de Recerca Ecològica i d'Aplicacions Forestals)

Fecha:	2008
Resumen:	Development of methodologies to assess the safety of reusing polluted organic wastes in soil is a priority in Europe. In this study, and coupled with chemical analysis, seven organic wastes were subjected to different aquatic and soil bioassays. Tests were carried out with solid-phase waste and three different waste eluates (water, methanol, and dichloromethane). Solid-phase assays were indicated as the most suitable for waste testing not only in terms of relevance for real situations, but also because toxicity in eluates was generally not representative of the chronic effects in solid-phase. No general correlations were found between toxicity and waste pollutant burden, neither in solid-phase nor in eluate assays, showing the inability of chemical methods to predict the ecotoxicological risks of wastes. On the contrary, several physicochemical parameters reflecting the degree of low organic matter stability in wastes were the main contributors to the acute toxicity seen in collembolans and daphnids.
Ayudas:	Ministerio de Ciencia y Tecnología AGL2002-03297
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Organic wastes ecotoxicity ; Solid-phase tests ; Eluate tests
Publicado en:	Environmental pollution, Vol. 151 Issue 3 (February 2008) , p. 549-558, ISSN 0269-7491

DOI: 10.1016/j.envpol.2007.04.007

Post-print 37 p, 613.4 KB

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