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Marine pollution bulletin. 2023 Sep;194(Pt B):115387. doi: 10.1016/j.marpolbul.2023.115387 Q14.92025

Temporal variation of per- and polyfluoroalkyl substances (PFASs) abundances in Shenzhen Bay sediments over past 65 years

深圳湾沉积物中全氟和多氟化合物(PFASs)六十五年的时间变化规律研究 翻译改进

Danxu Guo  1, Yang Zhou  2, Fang Chen  3, Zimin Wang  1, Haoshuai Li  1, Nan Wang  4, Huayang Gan  2, Shuhong Fang  5, Rui Bao  6

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作者单位

  • 1 Key Laboratory of Marine Chemistry Theory and Engineering Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China.
  • 2 Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 5111458, China; Guangzhou Marine Geological Survey, Ministry of Natural Resources, Guangzhou, 511458, China.
  • 3 Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou), Guangzhou 5111458, China; Guangzhou Marine Geological Survey, Ministry of Natural Resources, Guangzhou, 511458, China. Electronic address: Zhchenfang66@21cn.com.
  • 4 Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of China, Qingdao 266100, China.
  • 5 College of Resources and Environment, Chengdu University of Information Technology, Chengdu 610225, China. Electronic address: fsh@cuit.edu.cn.
  • 6 Key Laboratory of Marine Chemistry Theory and Engineering Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China. Electronic address: baorui@ouc.edu.cn.

    • DOI: 10.1016/j.marpolbul.2023.115387 PMID: 37595453

    摘要 Ai翻译

    We examined the vertical distribution of per- and polyfluoroalkyl substances (PFASs) and total organic carbon in sediment cores located in Shenzhen Bay area. We investigated the 210Pbex specific activity of the sediments and calculated the flux of PFASs to understand the temporal variation of PFASs in the past 65 years. The results showed that the concentrations of PFASs generally decreased with depth, ranging from 13 to 251 pg/g dw. The highest PFASs detected were perfluorobutanesulfonic acid, perfluorooctanoic acid, and perfluorohexanoic acid, which correspond to raw materials used in fire-fighting foam and food packaging industries. The flux of PFASs in Shenzhen Bay showed varying growth after 1978 when China's GDP entered a rapid growth stage. Our findings suggest that the vertical distribution of PFASs in Shenzhen Bay is fluctuating with the changes in industrial types and economic development, with implications for studying the fate of other persistent pollutants in the oceans.

    Keywords: Human activity; Long-time scale; PFASs; Sediments; Shenzhen Bay; Vertical variation.

    Keywords：PFASs; temporal variation; sediment; shenzhen bay

    关键词：per-和poly氟化烷基物质; PFASs; 时间变化; 沉积物; 深圳湾

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    期刊名：Marine pollution bulletin

    缩写：MAR POLLUT BULL

    ISSN：0025-326X

    e-ISSN：1879-3363

    IF/分区：4.9/Q1

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    Temporal variation of per- and polyfluoroalkyl substances (PFASs) abundances in Shenzhen Bay sediments over past 65 years