Historical trends of perfluoroalkyl substances (PFASs) in dated sediments from semi-enclosed bays of Korea
- Title
- Historical trends of perfluoroalkyl substances (PFASs) in dated sediments from semi-enclosed bays of Korea
- Author
- 문효방
- Keywords
- Pollution history; PFOS; Inventory; Flux; Sediment core
- Issue Date
- 2018-03
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Citation
- MARINE POLLUTION BULLETIN, v. 128, Page. 287-294
- Abstract
- Information is scarce on historical trends of perfluoroalkyl substances (PFASs) in the coastal environment. In this study, four sediment cores were collected from semi-enclosed bays of Korea to investigate the pollution history, contamination profiles, and environmental burden of PFASs. The total PFAS concentrations in sediment cores ranged from 6.61 to 821 pg/g dry weight. The highest concentrations of PFASs were found in surface or subsurface sediments, indicating on-going contamination by PFASs. Historical trends in PFASs showed a clear increase since the 1980s, which was consistent with the global PFAS consumption pattern. Concentrations of PFASs were dependent on the organic carbon content in sediment cores. PFOS and longer-chain PFASs were predominant in all of the sediment cores. In particular, a large proportion of longer-chain PFASs was observed in the upper layers of the sediment cores from industrialized coastal regions. Inventories and fluxes estimated for PFASs were similar to those for PCDD/Fs.
- URI
- https://www.sciencedirect.com/science/article/pii/S0025326X1830050Xhttps://repository.hanyang.ac.kr/handle/20.500.11754/80976
- ISSN
- 0025-326X
- DOI
- 10.1016/j.marpolbul.2018.01.039
- Appears in Collections:
- COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY[E](과학기술융합대학) > MARINE SCIENCE AND CONVERGENCE ENGINEERING(해양융합공학과) > Articles
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