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Melting and Incineration Plants of Municipal Waste : Chemical and Biochemical Diagnosis of Thermal Processing Samples (Emissions, Residues).
Environ. Sci. Pollut. Res. 9, 337-344 (2001)
Control of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in emissions and thermal residues from incinerators has been a cause of public concern for more than one decade. Recently, several studies showed that other persistent organic pollutants (Pops) such as coplanar polychlorinated biphenyls (co-PCBs) also have dioxin-like activity and are released from incinerators. Therefore, the present study was aimed at making a risk assessment about dioxin-like activity in extracts of thermal waste residues (e.g. combustion gas; fly ash, slag) from incineration and melting processes in Germany and Japan. For this purpose, polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs), coplanar polychlorinated biphenyls (co-PCBs), polychlorinated naphthalenes (PCNs) and polyaromatic hydrocarbons (PAHs) were analyzed by chemical analysis. Additionally, 2,3,7,8-TCDD equivalents (EROD-TEQs) were determined by in vitro Micro-EROD bioassay using rat H4IIE hepatoma cells. EROD-TEQs could be correlated to I-TEQ values (from PCDD/Fs/co-PCBs) analyzed by chemical analysis resulting in a maximal sixfold higher estimate. Our study indicates minor influences of co-PCBs, PAHs and PCNs to the sum of dioxin-like toxicity in the extracts of thermal waste residues as determined here. Furthermore, we showed that the levels of dioxins and co-PCBs contained in slag from melting processes and bottom ashes from incineration processes were lower by 1-2 orders of magnitude than that in fly ash.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
bioassay; dioxins; dioxin-like compounds; EROD bioassay; melting; municipal waste incinerator (MWI); persistent organic pollutants (POPs); polyaromatic hydrocarbons (PAHs); polychlorinated naphthalenes (PCNs); polychlorinated biphenyls (PCBs); tetrachlorodibenzo-p-dioxin (TCDD); toxicity equivalents (TEQ)
ISSN (print) / ISBN
0944-1344
e-ISSN
1614-7499
Quellenangaben
Volume: 9 ,
Issue: 5,
Pages: 337-344
Publisher
Springer
Non-patent literature
Publications
Reviewing status
Peer reviewed
Institute(s)
Institute of Ecological Chemistry (IOEC)