The physical and chemical nature of elemental selenium in the environment

环境中元素硒的物理和化学性质

• 批准号: RGPIN-2017-06203
• 负责人: Wallschläger, Dirk
• 金额: $ 2.33万
• 依托单位: Trent University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633671
• 关键词: physical; chemical; nature; elemental; selenium

Selenium (Se) is an inorganic contaminant of high current importance in North America. It is discharged accidentally into the aquatic environment from some major industrial processes, including coal-fired power plants, petroleum refineries and various types of mining operations (e.g. coal, gold and uranium). In some receiving environments, there is concern about ecotoxicological effects arising from Se discharges, which may lead to Se bioaccumulation in aquatic organisms, and to reproductive effects in aquatic birds and predatory fish that can ultimately endanger the survival of entire local populations.

硒（Se）是目前北美重要的无机污染物。它是从一些主要的工业过程中意外排放到水生环境中的，包括燃煤发电厂、炼油厂和各种类型的采矿作业（如煤、金和铀）。在一些接收环境中，人们担心硒排放产生的生态毒理学效应，这可能导致硒在水生生物中的生物积累，并对水生鸟类和捕食性鱼类的生殖产生影响，最终危及整个当地人口的生存。