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Tag:

air borne pollutants

Highway Barriers Stifle Pollution

written by Environmental News Network

Highway barriers erected along roadways can be perceived as massive monuments to the future and were intended to block the sound and sight of traffic for the adjacent neighborhoods. They may do a bit more in terms of air borne pollution. In a study by NOAA and the US Environmental Protection Agency, researchers released harmless “tracers” to measure the potential movement of pollutants such as carbon monoxide and heavy metals, and volatile organic compounds such as benzene. The results showed a significant reduction for those neighborhoods in pollutants as a result of the barriers.

Highway barriers were originally designed to help block highway noise as well as to improve the view for nearby residents. At first the barriers were somewhat ugly but many now have vines and other vegetation softening the aesthetic effects.

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January 15, 2010 0 comment
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