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Article: Potential for increased human foodborne exposure to PCDD/F when recycling sewage sludge on agricultural land.
- Article from:
- Environmental Health Perspectives
- Article date:
- June 15, 2004
- Author:
CopyrightCOPYRIGHT 2004 National Institute of Environmental Health Sciences. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Sewage sludge from municipal wastewater treatment is used in agriculture as a nutrient source and to aid in moisture retention. To examine the potential impact of sludge-amended soil on exposures to polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) from plant and animal foods, we conducted a review of published empirical data from international sources. Levels of PCDD/F in municipal sewage sludge ranged from 0.0005 to 8,300 pg toxic equivalents (TEQ)/g. Background levels in soil ranged from 0.003 to 186 pg TEQ/g. In sludge-amended soils, levels of PCDD/F ranged from 1.4 to 15 pg TEQ/g. Studies that measured levels before and after sludge treatment showed an ...
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Article: Development and tests of lightweight aggregate using ...
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... ... of this study is to efficiently treat sewage sludge discharged from sewage treatment plants ... aggregate made from a large quantity of sewage sludge. Sintered lightweight aggregate from sewage sludge is experimentally manufactured with ...
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