Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 87, Issue 2, Pages 184-189Publisher
SPRINGER
DOI: 10.1007/s00128-011-0319-7
Keywords
Dioxins; Furans; Brominated flame retardants; Polybrominated diphenyl ethers
Categories
Funding
- National Science Foundation of China [40903043]
- National Basic Research Program of China [2008CB418205]
- State Key Laboratory of Organic Geochemistry [SKLOG2008A03]
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The mean particulate polybrominated dibenzo-p-dioxins/furans (PBDD/Fs) levels for Guangzhou were in the range of 225-2244 fg/m(3) and showed the spatial trend of background < suburb areas < urban area < industrial area, suggesting the industrial and urban sources of PBDD/Fs. The most abundant congeners were 2,3,7,8-TBDF, 1,2,3,7,8-PeBDF and 2,3,4,7,8-PeBDF. The mean toxicity equivalency quantities (TEQs) of PBDD/Fs were in the range of 89.3-456 fg I-TEQ/m(3) for Guangzhou, which were several times higher than that of the background area (49.1 fg I-TEQ/m(3)). The rough inhalation risk evaluation showed that the residents in Guangzhou were in relatively higher exposure levels of PBDD/Fs.
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