https://scholars.lib.ntu.edu.tw/handle/123456789/385352
標題: | Is the phototransformation of pharmaceuticals a natural purification process that decreases ecological and human health risks? | 作者: | Wang, X.-H. ANGELA YU-CHEN LIN |
關鍵字: | Natural attenuation; Pharmaceutical mixtures; Photo-toxicity; Phototransformation | 公開日期: | 2014 | 卷: | 186 | 起(迄)頁: | 203-215 | 來源出版物: | Environmental Pollution | 摘要: | Sunlight photodegradation has long been considered a significant process in lowering the concentrations of pharmaceuticals in surface waters and thus decreasing the ecological risk. For the first time, this study identified the significance of investigating the environmental photodegradation of a pharmaceutical residue mixture (rather than a single compound) and the associated toxicity of transformation byproducts in environmental waters, including rivers, hospital wastewaters, and effluents from wastewater treatment plants and pharmaceutical production facilities. Pharmaceuticals undergo phototransformation rather than mineralization (11-23% in 34 h). Pharmaceutical mixtures could possibly act as dissolved organic matter for each individual compound and subsequently affect the photolysis rates. The increased toxicity of irradiated pharmaceutical mixtures challenges the validity of the current understanding of sunlight photolysis. The implications of this work suggest that current knowledge concerning the occurrence, natural attenuation, ecotoxicity, and human health risks of pharmaceuticals is far from complete; photolysis is not necessarily a purification process. ? 2013 Elsevier Ltd. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84891724030&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/385352 |
DOI: | 10.1016/j.envpol.2013.12.007 | SDG/關鍵字: | Dissolved organic matters; Pharmaceutical mixtures; Pharmaceutical production; Pharmaceutical residues; Photo-toxicity; Phototransformations; Transformation by-products; Wastewater treatment plants; Byproducts; Ecology; Mixtures; Natural attenuation; Photolysis; Purification; Toxicity; drug; river water; water; drug; ecotoxicology; health risk; natural attenuation; photodegradation; photolysis; toxicity; transformation; article; controlled study; drug mixture; ecotoxicity; effluent; hospital waste; mineralization; photodegradation; photolysis; risk reduction; sunlight; sunlight photolysis; waste water management; waste water treatment plant; Natural attenuation; Pharmaceutical mixtures; Photo-toxicity; Phototransformation; Ecology; Humans; Pharmaceutical Preparations; Photolysis; Risk Assessment; Rivers; Sunlight; Water Pollutants, Chemical; Water Purification |
顯示於: | 環境工程學研究所 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。