Organophosphate Esters in Sediment of the Great Lakes
文献类型：期刊论文
| 作者 | Guo, Jiehong; Cao, Dandan; Wang, Yawei; Li, Zhuona; Liang, Kang; Corcoran, Margaret B.; Hosseini, Soheil; Bonina, Solidea M. C.; Rockne, Karl J.; Sturchio, Neil C. |
| 刊名 | ENVIRONMENTAL SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 51期号:3页码:1441-1449 |
| 英文摘要 | This is the first study on organophosphate ester (OPEs) flame retardants and plasticizers in the sediment of the Great Lakes. Concentrations of 14 OPEs were measured in three sediment cores and 88 Ponar surface grabs collected from Lakes Ontario, Michigan, and Superior of North America. The sum of these OPEs (Sigma 14OPEs) in Ponar grabs averaged 2.2, 4.7, and 16.6 ng g(-1)dw in Lakes Superior, Michigan, and Ontario, respectively. Multiple linear regression analyses demonstrated statistically significant associations between logarithm concentrations of Sigma 14OPEs as well as selected congeners in surface grab samples and sediment organic carbon content as well as a newly developed urban distance factor. Temporal trends observed in dated sediment cores from Lake Michigan demonstrated that the recent increase in depositional flux to sediment is dominated by chlorinated OPEs, particularly tris(2chloroisopropyl) phosphate (TCPP), which has a doubling time of about 20 years. Downward diffusion within sediment may have caused vertical fractionation of OPEs over time. Two relatively hydrophilic OPEs including TCPP had much higher concentrations in sediment than estimated based on equilibria between water and sediment organic carbon. Approximately a quarter (17 tonnes) of the estimated total OPE burden (63 tonnes) in Lake Michigan resides in sediment, which may act as a secondary source releasing OPEs to the water column for years to come. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39377]  |
| 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 |
| 推荐引用方式 GB/T 7714 | Guo, Jiehong,Cao, Dandan,Wang, Yawei,et al. Organophosphate Esters in Sediment of the Great Lakes[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2017,51(3):1441-1449. |
| APA | Guo, Jiehong.,Cao, Dandan.,Wang, Yawei.,Li, Zhuona.,Liang, Kang.,...&Jiang, Guibin.(2017).Organophosphate Esters in Sediment of the Great Lakes.ENVIRONMENTAL SCIENCE & TECHNOLOGY,51(3),1441-1449. |
| MLA | Guo, Jiehong,et al."Organophosphate Esters in Sediment of the Great Lakes".ENVIRONMENTAL SCIENCE & TECHNOLOGY 51.3(2017):1441-1449. |
入库方式： OAI收割
来源：生态环境研究中心
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