《水科学与技术》杂志刊登“屋顶表面径流对城市水质的影响”

作者：P. Egodawatta, N. S. Miguntanna and A. Goonetilleke

刊物：Water Science & Technology，2012年，66卷第7期，1527-1533页

关键词：屋顶表面径流；雨洪污染；城市水质

摘要：当前有关城市雨洪对纳污水体的环境影响的研究文献非常丰富。但是研究普遍将路面径流作为主要的污染源。本文研究屋顶表面在城市水环境中的作用，特别关注了固体、营养物质和有机碳等污染源。结果表明，屋顶表面对城市雨洪的污染特征有重要影响。陆面和屋顶表面的污染物堆积以及冲洗特征有明显区别。屋顶表面的污染物冲洗特征主要表现在其对首次冲洗现象的影响，这比陆面的情况更明显。在大多数城市，屋顶表面作为不透水区域在城市中的比重越来越大，因此，非常有必要在城市雨洪水污染防治决策中考虑屋顶表面带来的环境影响。

Impact of roof surface runoff on urban water quality

Authors : P. Egodawatta, N. S. Miguntanna and A. Goonetilleke

Journal: Water Science & Technology，2012.66(7)，1527-1533

keywords: roof surface runoff；storm-water pollution；urban water quality

Abstract: The pollutant impacts of urban storm-water runoff on receiving waters are well documented in research literature. However, it is road surfaces that are commonly identified as the significant pollutant source. This paper presents the outcomes of an extensive program of research into the role of roof surfaces in urban water quality with particular focus on solids, nutrients and organic carbon. The outcomes confirmed that roof surfaces play an important role in influencing the pollutant characteristics of urban storm-water runoff. Pollutant build-up and wash-off characteristics for roads and roof surfaces were found to be appreciably different. The pollutant wash-off characteristics exhibited by roof surfaces show that it influences the first flush phenomenon more significantly than road surfaces. In most urban catchments, as roof surfaces constitute a higher fraction of impervious area compared with road surfaces, it is important that the pollutant generation role of roof surfaces is specifically taken into consideration in storm-water quality mitigation strategies.

原文链接: http://www.ncbi.nlm.nih.gov/pubmed/22864440