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dc.contributor.authorBENISEK Martinen_GB
dc.contributor.authorKUCKUCKA Petren_GB
dc.contributor.authorMARIANI Giulioen_GB
dc.contributor.authorSUURKUUSK GERTen_GB
dc.contributor.authorGAWLIK Bernden_GB
dc.contributor.authorLOCORO Giovannien_GB
dc.contributor.authorGIESY J.p.en_GB
dc.contributor.authorBLAHA Ludeken_GB
dc.identifier.citationCHEMOSPHERE vol. 122 p. 168-175en_GB
dc.description.abstractAerobic composting and anaerobic digestion plays an important role in reduction of organic waste by transforming the waste into humus, which is an excellent soil conditioner. However, applications of chem- ical-contaminated composts on soils may have unwanted consequences such as accumulation of persistent compounds and their transfer into food chains. The present study investigated burden of composts and dig- estates collected in 16 European countries (88 samples) by the compounds causing dioxin-like effects as determined by use of an in vitro transactivation assay to quantify total concentrations of aryl hydrocarbon receptor-(AhR) mediated potency. Measured concentrations of 2,3,7,8-Tetrachlorodibeno-p-dioxin (2,3,7,8-TCDD) equivalents (TEQbio) were compared to concentrations of polycyclic aromatic hydrocarbons (PAHs) and selected chlorinated compounds, including polychlorinated dibenzo-p-dioxins/furans (PCDD/ Fs), co-planar polychlorinated biphenyls (PCBs), indicator PCB congeners and organochlorine pesticides (OCPs). Median concentrations of TEQbio (dioxin-like compounds) determined by the in vitro assay in crude extracts of various types of composts ranged from 0.05 to 1.2 with a maximum 8.22 lg (TEQbio) kg1 dry mass. Potencies were mostly associated with less persistent compounds such as PAHs because treatment with sulfuric acid removed bioactivity from most samples. The pan-European investigation of contamina- tion by organic contaminants showed generally good quality of the composts, the majority of which were in compliance with conservative limits applied in some countries. Results demonstrate performance and added value of rapid, inexpensive, effect-based monitoring, and points out the need to derive correspond- ing effect-based trigger values for the risk assessment of complex contaminated matrices such as composts.en_GB
dc.description.sponsorshipJRC.H.1-Water Resourcesen_GB
dc.titleDioxins and dioxin-like compounds in composts and digestates from European countries as determined by the in vitro bioassay and chemical analysisen_GB
dc.typeArticles in periodicals and booksen_GB
JRC Directorate:Sustainable Resources

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