Variability of roof runoff quality

被引：115

作者：

Förster, J ^{[1
]}

机构：

[1] Univ Bayreuth, Dept Hydrol, D-95440 Bayreuth, Germany

来源：

WATER SCIENCE AND TECHNOLOGY | 1999年 / 39卷 / 05期

关键词：

roof runoff pollution; first flush; PAH; heavy metals; roof materials; washoff;

D O I：

10.1016/S0273-1223(99)00095-5

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The variability of the pollution of roof runoff was investigated considering a variety of possibly influencing factors. Runoff samples were taken from an experimental roof system that allows the comparison of five different roof materials at urban background conditions, and from house roofs at five different locations in the town of Bayreuth, Germany. It was found that local sources (e.g. PAH from heating systems), dissolution of the roof systems' metal components, and background air pollution are the main sources of runoff pollution. Its variability is extremely high in between different roofs (up to three orders of magnitude) and high within as well as in between single precipitation events. The first flush is often heavily polluted and should be treated in an appropriate way. Roofs with metal surfaces should not be connected to infiltration facilities as concentrations of copper and zinc by far exceed various toxicity threshold values. (C) 1999 IAWQ Published by Elsevier Science Ltd. All rights reserved.

引用

页码：137 / 144

页数：8

共 12 条

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