Distribution and Elimination of Trifluoropropylmethylsiloxane Oligomers in Both Biosolid-Amended Soils and Earthworms
文献类型：期刊论文
| 作者 | Zhi, Liqin ; Sun, Hongyu; Xu, Lin; Cai, Yaqi
|
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-01-19 |
| 卷号 | 55期号:2页码:985-993 |
| ISSN号 | 0013-936X |
| 英文摘要 | During a primary screening in 2015 and 2016, tris-(trifluoropropyl) trimethylcyclotrisiloxane (D3F) and cis-/trans-tetrakis(trifluoropropyl)tetramethylcyclotetrasiloxane isomers (cis-D4F, trans-D4Fa,b,c) were detected in 12 biosolid-amended soils from Laixi and Shijiazhuang Cities of China, with mean concentrations being 10.3 ng/g dry weight (dw) and 2.7 ng/g dw for D3F and D4F, respectively. Subsequently, one further systematical survey found that although repeatedly amended by biosolids containing trifluoropropylmethylsiloxanes (4.2-724 ng/g dw), these compounds had no increasing trend in biosolid-amended soils (n = 100) collected from Laixi City at five sampling events from February 2017 to June 2019. Simulated experiments indicated that hydrolysis half-lives (1.8-28.0 days) of trifluoropropylmethylsiloxanes in soils were 3.0-18.3 times shorter than volatilization half-lives (7.4-362 days). Compared with those of octamethylcyclotetrasiloxane (D4), the hydrolysis rates of D4F isomers were faster in soils with total organic carbon (TOC) <= 80 mg/g but lower in soils with TOC >= 150 mg/g. In earthworm bodies, trifluoropropylmethylsiloxanes had 1.03-1.5 times lower biota-soil accumulation factors (1.3-3.2) but 1.4-3.0 times longer half-lives (2.6-5.7 days) than D4. The stronger persistence of fluorinated-siloxane than the corresponding dimethylsiloxane in both soils (at high TOC levels) and earthworms indicated that environmental risks of these compounds deserve further investigation. |
| WOS研究方向 | Engineering, Environmental ; Environmental Sciences |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45707]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Chem & Ecotoxicol, Beijing 100085, Peoples R China 2.Environm Protect Res Inst Light Ind, Beijing 100089, Peoples R China 3.Tianjin Chengjian Univ, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China 4.Jianghan Univ, Inst Environm & Hlth, Hubei Key Lab Environm & Hlth Effects Persistence, Wuhan 430056, Peoples R China 5.UCAS, Hangzhou Inst Adv Study, Sch Environm, Hangzhou 330106, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhi, Liqin,Sun, Hongyu,Xu, Lin,et al. Distribution and Elimination of Trifluoropropylmethylsiloxane Oligomers in Both Biosolid-Amended Soils and Earthworms[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2021,55(2):985-993. |
| APA | Zhi, Liqin,Sun, Hongyu,Xu, Lin,&Cai, Yaqi.(2021).Distribution and Elimination of Trifluoropropylmethylsiloxane Oligomers in Both Biosolid-Amended Soils and Earthworms.ENVIRONMENTAL SCIENCE & TECHNOLOGY,55(2),985-993. |
| MLA | Zhi, Liqin,et al."Distribution and Elimination of Trifluoropropylmethylsiloxane Oligomers in Both Biosolid-Amended Soils and Earthworms".ENVIRONMENTAL SCIENCE & TECHNOLOGY 55.2(2021):985-993. |
入库方式： OAI收割
来源：生态环境研究中心
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