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Distribution of methylsiloxanes in benthic mollusks from the Chinese Bohai Sea
Zhi, Liqin; Xu, Lin; He, Xudan; Zhang, Chunhui; Cai, Yaqi
2019-02
Source PublicationJOURNAL OF ENVIRONMENTAL SCIENCES
ISSN1001-0742
Volume76Pages:199-207
AbstractMethylsiloxanes are a class of silicone compounds that have been widely used in various industrial processes and personal care products for several decades. This study investigated the spatial distribution of three cyclic methylsiloxanes (D4-D6) and twelve linear methylsiloxanes (L5-L16) in mollusks collected from seven cities along the Bohai Sea. D4-D6 (df = 71%-81%) and L8-L16 (df = 32%-40%) were frequently detectable in the mollusk samples, while L5-L7 were not found in any mollusk samples. Cyclic methylsiloxanes (D4-D6) were found in mollusks with the mean concentrations of 15.7 +/- 12.3 ng/g ww for D4, 24.6 +/- 15.8 ng/g ww for D5 and 34.0 +/- 23.0 ng/g ww for D6. Among the seven sampling cities, the cyclic methylsiloxanes were predominant in mollusks, with the total cyclic methylsiloxanes (sum of D4-D6, Sigma CMS) accounting for 74.2%-80.7% of the total methylsiloxanes. Sigma CMS along the coastline demonstrated a clear gradient, with the highest concentrations in mollusks at the sampling sites located in the western part of the Bohai Sea and the lowest concentrations in mollusks from cities located in the eastern part of the Bohai Sea. The biota-sediment accumulation factors for cyclic methylsiloxanes (D4-D6) and linear methylsiloxanes (L8-L16) were estimated as 0.42 +/- 0.06-0.53 +/- 0.06 and 0.13 +/- 0.03-0.19 +/- 0.05, respectively. (C) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
Department环境化学与生态毒理学国家重点实验室
KeywordMethylsiloxane Mollusks Sediment Bioaccumulation
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/42931
Collection环境化学与生态毒理学国家重点实验室
Affiliation1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Environm Protect Res Inst Light Ind, Beijing 100089, Peoples R China
4.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
5.Jianghan Univ, Inst Environm & Hlth, Wuhan 430056, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Zhi, Liqin,Xu, Lin,He, Xudan,et al. Distribution of methylsiloxanes in benthic mollusks from the Chinese Bohai Sea[J]. JOURNAL OF ENVIRONMENTAL SCIENCES,2019,76:199-207.
APA Zhi, Liqin,Xu, Lin,He, Xudan,Zhang, Chunhui,&Cai, Yaqi.(2019).Distribution of methylsiloxanes in benthic mollusks from the Chinese Bohai Sea.JOURNAL OF ENVIRONMENTAL SCIENCES,76,199-207.
MLA Zhi, Liqin,et al."Distribution of methylsiloxanes in benthic mollusks from the Chinese Bohai Sea".JOURNAL OF ENVIRONMENTAL SCIENCES 76(2019):199-207.
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