浙江沿海贝类体内有机锡化合物分布特征与风险评价

doi:10.3969/j.issn.1001-909X.2020.04.007

摘要/Abstract

摘要： 为了探讨浙江沿海贝类体内有机锡的存在形态及分布特征,采用戊基化格氏衍生GC-FPD方法测定了沿海六县(市)采集的双壳贝类体内3种丁基锡和3种苯基锡化合物含量,并采用风险系数法进行了健康风险评价。研究表明,苯基锡是贝类体内有机锡的主要污染物,含量范围为nd~203.6 ng·g^-1(干重),以二苯基锡为主。丁基锡总含量范围为nd~8.2 ng·g^-1(干重),以三丁基锡为主。贝类中贻贝对有机锡的富集能力较强。不同区域贝类体内的有机锡主要来源于海运船舶的防污涂料。健康风险评价结果表明,浙江沿海贝类对食用人群的健康是安全的。

关键词: 浙江沿海, 贝类生物, 丁基锡化合物, 苯基锡化合物, 健康风险评价

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

中图分类号:

X503.1
X55

方杰, 母清林, 张庆红, 王晓华. 浙江沿海贝类体内有机锡化合物分布特征与风险评价[J]. 海洋学研究, 2020, 38(4): 65-71.

FANG Jie, MU Qinglin, ZHANG Qinghong, WANG Xiaohua. Distribution and risk assessment of organotin compounds in marine shellfishes from coastal areas of Zhejiang Province, China[J]. Journal of Marine Sciences, 2020, 38(4): 65-71.

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