Bioaccumulation, maternal transfer and elimination of polybrominated diphenyl ethers in wild frogs

Publication year: 2011
Source: Chemosphere, In Press, Corrected Proof, Available online 14 June 2011

Peng-Yan, Liu , Guo-Dong, Du , Ya-Xian, Zhao , Yun-Song, Mu , Ai-Qian, Zhang , …

To investigate bioaccumulation, maternal transfer and elimination of polybrominated diphenyl ethers (PBDEs) in amphibians, we collected adult frogs (Rana limnocharis) from a rice field in an e-waste recycling site in China. We found that ∑PBDEs in the whole frogs and various tissues (brain, liver, testis and egg) ranged from 17.10 to 141.11ngg−1 wet weight. Various tissues exhibited a similar PBDE congener profile, which was characterized by intermediate brominated congeners (BDE-99 and BDE-153) as the largest contributors, with less lower brominated congeners (BDE-28 and BDE-47) and higher brominated congeners (BDE-209). The maternal transfer capacity of PBDEs declined with the increase in…

 Highlights: ► PBDE congener profiles in frogs differed from aquatic and terrestrial species. ► Maternal transfer capacity of PBDEs was negatively correlative with bromine number. ► We investigated for the first time PBDEs elimination in frogs.