Bisphenol A and its analogues in sedimentary microplastics of Hong Kong

Hoi Shing Lo, Beverly Hoi Ki Po, Laam Li, Aman Yi Man Wong, Richard Yuen Chong Kong, Lei Li, William K F TSE, Chris K C WONG, Siu Gin Cheung*, Keng Po Lai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The occurrence and spatial distribution of bisphenol A (BPA) and analogues bisphenol B (BPB), bisphenol F (BPF) and bisphenol S (BPS) were investigated in microplastic on 11 beaches in Hong Kong. At 10 sites, BPA was the only detected chemical with concentrations ranged from 82.4–989 ng g−1 microplastic. BPA, BPB and BPS co-occurred at only one site, where it is located close proximity to the outfall of a sewage treatment plant. There was no significant spatial difference of BPA concentrations in microplastic when all the sites were considered, indicating that some remote and presumably cleaner beaches have been contaminated. PE, PP and PS (represented >90% of total polymers) were the most dominated polymers, but there was no correlation between polymer types and BPA concentrations. No evidence was found that the BPA and its analogues accumulate on microplastic since the concentrations were comparable to those found in the sediment.

Original languageEnglish
Article number112090
JournalMarine Pollution Bulletin
Volume164
DOIs
Publication statusPublished - Mar 2021

Scopus Subject Areas

  • Oceanography
  • Aquatic Science
  • Pollution

User-Defined Keywords

  • Bisphenol analogues
  • Ecotoxicity
  • Endocrine disrupting chemicals
  • Microplastics

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