Concentrations of PCDD/PCDFs and PCBs in spent foundry sands
| Autor: | Robert S. Dungan, Rufus L. Chaney, Janice K. Huwe |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Polychlorinated Dibenzodioxins
Environmental Engineering Municipal solid waste Beneficial use Health Toxicology and Mutagenesis Polychlorinated dibenzodioxins chemistry.chemical_compound Soil Pollutants Environmental Chemistry Toxic equivalency factor Benzofurans Persistent organic pollutant Waste management Public Health Environmental and Occupational Health Agriculture General Medicine General Chemistry Dibenzofurans Polychlorinated Silicon Dioxide Polychlorinated Biphenyls Pollution Soil contamination chemistry Environmental chemistry Metallurgy Foundry Polychlorinated dibenzofurans |
| Zdroj: | Chemosphere. 75:1232-1235 |
| ISSN: | 0045-6535 |
| Popis: | Approximately 10 million tons of spent foundry sand (SFS) are generated in the United States each year, and their beneficial use in agricultural and horticultural applications is being considered. Other studies have demonstrated that trace elements are low enough in sands from iron, steel, and aluminum foundries to allow their beneficial use. Because data were not available on polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and polychlorinated biphenyls in SFSs, we analyzed representative spent sands from 10 foundries to assess the potential for these compounds to limit their use in soil-related applications. The total TEQ (toxicity equivalent) concentrations ranged from 0.01 to 3.13 ng TEQ kg(-1), with an average concentration of 0.58 ng TEQ kg(-1). These concentrations are within the range of natural background in soils. |
| Databáze: | OpenAIRE |
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