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National Repository of Grey Literature 1 records found  Search took 0.01 seconds. 
Vegetation effects on ambient air quality alongside the motorways
 Kučera, Lukáš ; Hůnová, Iva (advisor) ; Lhotka, Radek (referee)
The bachelor thesis is a literature search on the removal of pollutants emitted by traffic with the use of vegetation barriers along public roads. The aim of the thesis is to investigate the reasons leading to contradictions existing in the literature about the effectiveness of vegetation barriers. It explores which type and structure of vegetation barrier is the most effective in removing pollutants from the air. On the basis of the conducted research and available data, it determines whether it makes sense to consider introduction of vegetation barriers along H6 Úlibice-Hořice and H7 Hořice-Sadová, the segments of the D35 highway. The first part of the paper outlines that the effectiveness of a vegetation barrier is influenced by a number of factors such as the wind speed and its direction, precipitation summary, vegetation density,itś height and species composition or dimensions of vegetation barriers itself. For this reason, there is no general type or structure of vegetation barrier that improves air quality, and it is therefore essential to desingn such barrier on a site-specific basis. The reason for negative impact of some vegetation barriers on air quality was due to their improper design. The second part of the thesis deals with the suitability of planting vegetation barriers on selected...
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