Oct, 2017
Soil contamination by halogenated polycyclic aromatic hydrocarbons from open burning of e-waste in Agbogbloshie (Accra, Ghana)
JOURNAL OF MATERIAL CYCLES AND WASTE MANAGEMENT
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- Volume
- 19
- Number
- 4
- First page
- 1324
- Last page
- 1332
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1007/s10163-016-0568-y
- Publisher
- SPRINGER
Detailed composition of chlorinated and brominated polycyclic aromatic hydrocarbons (Cl-PAHs and Br-PAHs) generated during informal recycling of e-waste and their toxic relevance are still poorly understood. This study investigated the occurrence of Cl-PAHs and Br-PAHs in surface soil samples from the Agbogbloshie e-waste recycling site (Accra, Ghana) using quantitative gas chromatography-mass spectrometry (GC-MS) and comprehensive two-dimensional GC-time-of-flight mass spectrometry (GC x GC-ToFMS) profiling. The results of GC-MS analysis showed elevated concentrations in open e-waste burning areas (160-220 and 19-46 ng/g dry weight for Cl- and Br-PAHs, respectively) with substantial contribution from unidentified compounds (respectively, more than 36 and 70%, based on the total areas of potential peaks). Cl- and Br-PAHs from e-waste burning had a distinctive composition dominated by ring-ring compounds. Several homologue groups not monitored with GC-MS were found using GC x GC-ToFMS: PAHs with up to 5 Cl or 3Br, mixed halogenated PAHs and chlorinated methylPAHs. The dioxin-like toxic equivalents of the identified Cl-/Br-PAHs in soils, estimated from their in vitro AhR agonist potencies relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin, were much lower than the range reported for chlorinated and brominated dioxins. However, the toxicity of the unidentified halogenated PAHs remained unclear.
- Link information
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- DOI
- https://doi.org/10.1007/s10163-016-0568-y
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000412841300003&DestApp=WOS_CPL
- URL
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85001070136&origin=inward
- ID information
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- DOI : 10.1007/s10163-016-0568-y
- ISSN : 1438-4957
- eISSN : 1611-8227
- SCOPUS ID : 85001070136
- Web of Science ID : WOS:000412841300003