Monitoring and Research on urban impervious surface rainfall runoff pollution
Vol 3, Issue 1, 2022
VIEWS - 44 (Abstract)
Abstract
Urban impervious surface rainfall runoff pollution is an important part of non-point source pollution, and the pollutants accumulated on urban impervious surface in non rainy days are the main source of pollutants in rainfall runoff. Taking the first 10 rainfall events in 2015 as an example, the impervious surfaces such as the roof of teaching buildings, campus roads and adjacent main traffic roads within the university campus in southeast Beijing were selected as the research objects to conduct field sampling and Analysis on the natural rainfall and the rainfall runoff pollution. The results show that the first rainfall runoff pollution after winter is serious, and the water quality is inferior to class v. After that, the rainfall runoff pollution is reduced; the severity of water pollution is different at different sampling points; the closer to the building toilet exhaust outlet, the higher the ammonia nitrogen pollution concentration; the existence of pervious surface facilities can reduce the degree of runoff pollution. According to the analysis and research results, some suggestions for controlling and harnessing urban rainfall runoff pollution are put forward.
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