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| Geographical distribution of polybrominated diphenyl ethers（PBDEs）in resident eurasian tree sparrows （Passer montanus）across Shanghai， China |
| Received:November 12, 2022 Revised:January 04, 2023 |
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| KeyWord:polybrominated diphenyl ethers（PBDEs）;resident bird;eurasian tree sparrow;geographical distribution;Shanghai |
| Author Name | Affiliation | E-mail | | HUANG Kai | Shanghai Xin Jinqiao Environmental Protection Company, Shanghai 201201, China | | | LIN Kuangfei | East China University of Science and Technology, State Environmental Protection, Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, Shanghai 200237, China | kflin@ecust.edu.cn |
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| Abstract: |
| This study took Shanghai as a typical research area. Eurasian tree sparrow muscles from different functional areas were selected to analyze the levels of polybrominated diphenyl ethers(PBDEs) and their geographical distribution patterns in Shanghai. The concentrations of Σ7PBDEs(sum of BDE 28, BDE 47, BDE 99, BDE 100, BDE 153, BDE 154 and BDE 183 concentrations)ranged from 9.0 ng·g-1 to 83.6 ng·g-1 (lipid weight). The highest concentration of BDE 209 was 292.0 ng·g-1. The average concentration of BDE 209 was about twice that of Σ7PBDEs. Commercial decabromodiphenyl ether products were the main source of sparrow PBDEs pollution in Shanghai. The concentrations of Σ8PBDEs(sum of Σ7PBDEs and BDE 209 concentrations)in sparrow muscle in central urban areas and industrial parks were significantly higher than that in rural areas. The geographical distribution pattern of Σ8PBDEs followed the rule of landfill ＞ industrial park ＞ urban central area ＞ suburban area ＞ rural area. Shanghai waste landfills and industrial parks were potent sources of PBDEs release. Compared with other regions of China, the concentrations of PBDEs in sparrows in Shanghai were at a low level and pose relatively little ecological risk. However, the concentrations of PBDEs in individual sparrow samples from landfills, industrial parks and urban centers were relatively high, and therefore the potential environmental risk should not be ignored. |
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