Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Biosolids‐Amended Soils: Part II. Chemical Lability as a Measure of Contaminant Bioaccessability
Biosolids recycling by amending agricultural soils has increased significantly over the last few decades. The presence of contaminants in small, bioavailable quantities has generated concerns about health threats resulting from accumulation of potential toxins in the food chain. In this study, land application of biosolids was evaluated for environmental risk. Chemical lability tests for metals were used for the test soils and included analyses for water soluble, exchangeable, and metals extractable by the physiologically based extraction test. Chemical extractions detected slight increases in labile metal concentrations for many of the treated soils, particularly those receiving long‐term applications of 5 years or more. Significantly higher metal concentrations were observed in the soils that had been exposed to biosolids before the U.S. Environmental Protection Agency (Washington, D.C.) 503 Rule (U.S. EPA, 2004) was implemented.
Biosolids‐Amended Soils: Part II. Chemical Lability as a Measure of Contaminant Bioaccessability
Biosolids recycling by amending agricultural soils has increased significantly over the last few decades. The presence of contaminants in small, bioavailable quantities has generated concerns about health threats resulting from accumulation of potential toxins in the food chain. In this study, land application of biosolids was evaluated for environmental risk. Chemical lability tests for metals were used for the test soils and included analyses for water soluble, exchangeable, and metals extractable by the physiologically based extraction test. Chemical extractions detected slight increases in labile metal concentrations for many of the treated soils, particularly those receiving long‐term applications of 5 years or more. Significantly higher metal concentrations were observed in the soils that had been exposed to biosolids before the U.S. Environmental Protection Agency (Washington, D.C.) 503 Rule (U.S. EPA, 2004) was implemented.
Biosolids‐Amended Soils: Part II. Chemical Lability as a Measure of Contaminant Bioaccessability
Schwab, A. P. (Autor:in) / Lewis, K. (Autor:in) / Banks, M. K. (Autor:in)
Water Environment Research ; 78 ; 2231-2243
01.11.2006
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
bioavailability , lability , bioaccessibility , arsenic , metals , lead , cadmium , chromium , biosolids , toxicity
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