英国兰开斯特大学Kevin C. Jones教授-持久性有机污染物的全球循环
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入会暗号
直播时间：2022年12月01日 7:00pm（北京时间）
Zoom会议ID：816 9975 7155
Bilibili链接：
https://live.bilibili.com/25002335?broadcast_type=0&;is_room_feed=1&spm_id_from=333.999.0.0（生态环境健康EEH）
本期主题
持久性有机污染物的全球循环
The Global Cycling of Persistent Organic Pollutants
本期主持：陈长二 教授
华南师范大学
特邀主讲：Kevin Christopher JONES 教授
英国兰开斯特大学
Kevin C. Jones, 英国兰卡斯特大学杰出教授。本科就读于伦敦大学，后于伦敦国王学院取得博士学位。Jones教授是环境污染行为及效应领域全球著名科学家，以有机污染物“全球污染源解析-区域与全球环境过程和行为-区域与全球尺度模型模拟”为研究主线，从全球尺度监测和解析有机污染物的来源、分布及其毒理效应和生态影响，并评估环境风险，为有机污染物控制消减政策提供重要支撑。曾任欧洲主要环境中心之一的英国兰卡斯特大学环境中心（LEC）主任，与许多国际高校及研究机构建立了良好的合作关系。主要的学术贡献为：（1）建立了第一份持久性有机污染物（POPs）的全球排放清单；（2）提出了有关POPs全球迁移的新理论和新观点，并被学界普遍接受；（3）开发了多介质迁移模型和新型采样技术；（4）开展了有机污染物的环境降解行为、暴露和毒性研究。主持完成了130余项研究课题，累计经费超过1000万英镑。先后在Nature、ES&T等著名期刊上发表论文近700篇（其中，ES&T论文超200篇），H指数95，总引用超过30000次。是国际环境/生态领域引用最多的学者之一（前10名）。
报告摘要
Persistent organic pollutants (POPs) and related chemicals are fascinating because of their combination of physical- chemical properties and complex effects. Most are man-made, but some also have natural origins. They are persistent in the environment, but they can be broken down variously by biodegradation, atmospheric reactions, and abiotic transformations. They can exist in the gas or particle phases, or both, in the atmosphere and in the dissolved or particulate phases, or both, in water. These combinations mean that they may undergo long-range transport in the atmosphere or oceans, or they may stay close to sources. Hence, emissions from one country are frequently a source of contamination to another country. They are also usually lipophilic, so–combined with persistence–this means they can accumulate in organisms and biomagnify through food chains. We all have a baseline of POPs residues in our tissues, even the unborn fetus via placental transfer and the newly born baby via mother’s milk. POPs in biological systems occur in mixtures, so confirming effects caused by POPs on humans and other top predators is never straightforward. Depending on which papers you read, POPs may be relatively benign, or they could be responsible for key subchronic and chronic effects on reproductive potential, on immune response, as carcinogens, and on a range of behavioral and cognitive end points. They could be a factor behind diseases and conditions which have been increasingly reported and studied in modern societies. In short, they are endlessly fascinating to scientists and a nightmare to regulators and policy makers.
