Journal of Marine Sciences ›› 2020, Vol. 38 ›› Issue (4): 65-71.DOI: 10.3969/j.issn.1001-909X.2020.04.007

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Distribution and risk assessment of organotin compounds in marine shellfishes from coastal areas of Zhejiang Province, China

FANG Jie, MU Qinglin, ZHANG Qinghong, WANG Xiaohua   

  1. Zhejiang Marine Ecology and Environment Monitoring Center, Zhoushan 316021, China
  • Received:2020-11-10 Online:2020-12-15 Published:2020-12-15

Abstract: In order to study the occurrence and distribution of organotin compounds(OTs) in marine shellfishes from coastal areas of Zhejiang, six OTs including butyltin and phenyltin species were determined in shellfishes which were collected from seven sampling sites of Zhejiang by GC-FPD after sample treatment with pentylized derivatization, and then the health risk assessment was studied. The results showed that phenyltin species were the main contaminants in shellfishes, while the concentration ranges of phenyltin compounds were from nd to 203.6 ng·g-1(dw). The concentrations in shellfishes varied from nd to 8.2 ng·g-1(dw) for butyltin compounds. DPT and TBT were high levels in phenyltin compounds and butyltin compounds, respectively. Concentrations of OTs in mussels (Mytilus edulis) were obviously higher than those in other species, indicating that they had stronger abilities of enrichment for OTs. The distributions of OTs concentrations in different sampling sites showed that both butyltin and phenyltin compounds mainly came from antifouling paints for ships. The results of human health risk assessment showed that food exposure of OTs posed no health risks for consumers living the coastal areas.

Key words: Zhejiang coastal area, marine shellfishes, butyltin compounds, phenyltin compounds, human health risk assessment

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