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Ecology & Safety, Volume 12, 2018

ESTIMATION OF THE POTENTIAL RUNOFF QUALITY IMPROVEMENT AS A RESULT OF APPLIED GREEN INFRASTRUCTURE MEASURES IN A HUNGARIAN TOWN
Gabriella Hancz, János Biró, Barbara Biró
Pages: 183-196
Published: 27 Jul 2018
Views: 652
Downloads: 187
Abstract: Green infrastructure measures provide several services – improves the microclimate of a town, improves air quality, decreases noise and improves the quality of surface and subsurface waters as well along with increasing the water balance on the town level. These facts are proved by several studies which will be quoted in the study. The aim of the study is to estimate the potential runoff quality improvement as a result of applying green infrastructure elements along traffic roads in the town. This improvement is of high priority in the aquifer protection area from where runoff water may infiltrate into the aquifer carrying with it pollutants from the surface. Estimations is going to be applied on more levels, first we determine the surface of traffic roads, then estimate the quantity of different kinds of pollutants accumulated on the surface and thirdly we estimate the expected performance of the applied green infrastructure elements based on findings in the literature in this topic. We determine the impervious urban surface area associated with transport-related functions within the protected drinking water recharge area using GIS technic using available orthophotos. We introduce data regarding the roads with the densest traffic in 2016. within the investigated area. We estimate the expected reduction of runoff pollution if sustainable storm water management practices are applied in the area. The overall goal is to make the significance of diffuse pollution more obvious and enhance drinking water protection through taking diffuse pollution into consideration.
Keywords: traffic related urban surfaces, reduction of pollution load from roads, protected drinking water recharge area, stormwater management practices, water
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