Field-investigations of pollutants in stormwater runoff, seepage water and topsoil of stormwater infiltration sites

摘要

Nowadays, the natural water cycle is fundamentally influenced by anthropogenic factors. In recent years, increasing urban settlement in drainage areas has led to intensified surface paving and consequently to an enormous increase in the water to be collected and transported from urban area. Therefore, current approaches to wastewater collection have caused different economic and environmental problems in urban hydrology. The main problems are: - overloading of sewage treatment plants, - increasing number of flood events, - reduced groundwater recharge, - adverse impacts on the quality of receiving water by, e.g., combined sewer overflows, and - increasing investment and operating costs for sewage treatment facilities.