讲座报告 Seminar
Luncheon Seminar #129: Studies of the emerging contaminants in estuarine sediments and ocean water  

【时间 Time】:2018-12-10 (星期一) 11:40am-1:00pm Seminar starts at 12:00pm    【浏览次数 Count】:435   【发布时间 Updated】:2018-12-3
【地点 Venue】:周隆泉楼A3-206   A3-206 Zhou Long Quan Building
【主讲人 Speaker】:戴溪,博士后    Xi Dai
【来访单位 Institution】:近海海洋环境科学国家重点实验室,中国     
【邀请人 Host】:李骁麟  Xiaolin Li      【联络人 Contact】:黄迎   Ying Huang 2181571

Abstract:
Since the second half of the 20th Century, the synthesis of new chemicals has experienced an exponential growth. Negative effects of the contaminants on the environment and human health became apparent soon after their widespread release into the environment. Quaternary ammonium compounds (QACs), the emerging contaminants, are the major class of cationic surfactants used as the ingredients in fabric softeners, disinfectants, biocides, detergents, phase transfer agent and numerous personal care products. QACs have a positively charged quaternary nitrogen atom containing four functional groups, which readily adsorb negatively charged sludge and suspended particles. We found that QACs contributed to about 70% of the mass inventory of the legacy and emerging organic contaminants (> 100 chemicals) in the surface sediments of Pearl River Estuary, China. The contaminants are widespread not only on land but also in the open ocean. With the development of plastic pollution, microplastices have been the emerging contaminant and the carrier of pollutants. Up to now, microplastices have been documented in all marine environments, from coastlines to the open ocean, from the sea surface to the sea floor, in deep-sea sediments and even in Arctic sea ice. It is an urgent issue to research the environmental consequences of this contamination.

工作经历
2017.12 - 至今 厦门大学 近海海洋环境科学国家重点实验室 博士后
2016.06 -2017.09 济南大学 光功能材料与成像研究院 助理教授

教育经历
2011.09-2016.06 山东大学 化学与化工学院 有机化学 博士研究生
2009.09-2011.06 曲阜师范大学 化学与化工学院 化学专业 本科学士

研究方向
新型污染物在河口、海洋中的迁移、转化机制以及海洋有机碳循环