Time focused measurements of roof runoff quality |
| |
Authors: | A. Schriewer |
| |
Affiliation: | Technical University Munich, Institute of Water Quality Control, Am Coulombwall, 85748 Garching, Germany |
| |
Abstract: | Runoff properties and their changes during runoff of a 14 year old zinc roof were investigated. Zinc, lead, cadmium, pH value, rain intensity and electric conductivity have been measured for a period of one year. A runoff rate of 3.73 g/m2 a and a volume weighted mean zinc concentration of 4.9 mg/L were determined. First flush behaviour was observed in 93% of runoff events. Low rain intensities are correlating with higher zinc concentrations in runoff, whereas the duration of antecedent dry periods could not directly be linked with initial zinc concentrations. |
| |
Keywords: | A. Metal roof A. Zinc C. First flush C. Roof runoff C. Runoff rate |
本文献已被 ScienceDirect 等数据库收录! |
|