期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 132, 期 -, 页码 178-187出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2013.11.009
关键词
Roofing material; Seasonal variation; Water quality; Roof management; Rainwater harvesting
资金
- National Water Pollution Control and Management Technology Major Projects of China [2012ZX07307]
- National Natural Science Foundation of China [41030744, 40901265]
There is an urgent requirement to examine the quality of harvested rainwater for potable and non-potable purposes, based on the type of roofing material. In this study, we examined the effect on the quality of harvested rainwater of conventional roofing materials (concrete, asphalt and ceramic tile roofs) compared with alternative roofing materials (green roof). The results showed that the ceramic tile roof was the most suitable for rainwater-harvesting applications because of the lower concentrations of leachable pollutants. However, in this study, the green roof was not suitable for rainwater harvesting applications. In addition, seasonal trends in water quality parameters showed that pollutants in roof runoff in summer and autumn were lower than those in winter and spring. This study revealed that the quality of harvested rainwater was significantly affected by the roofing material; therefore, local government and urban planners should develop stricter testing programs and produce more weathering resistant roofing materials to allow the harvesting of rainwater for domestic and public uses. (C) 2013 Elsevier Ltd. All rights reserved.
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