News tagged with pavements

Coal-tar-sealant runoff causes toxicity and DNA damage

Runoff from pavement with coal-tar-based sealant is toxic to aquatic life, damages DNA, and impairs DNA repair, according to two studies by the U.S. Geological Survey published in the journals Environmental Science and Technology ...

May 04, 2015
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Over 270,000 pedestrians killed each year

More than 270,000 pedestrians are killed on the world's roads each year, the World Health Organisation said Thursday, slamming decades of neglect in favour of vehicle transportation.

May 02, 2013
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Innovative, off-road wheelchairs hit the US market

The rugged, low-cost wheelchairs designed by SF State's Whirlwind Wheelchair program have helped thousands of people in developing countries. Now they're available in the U.S., where they are opening up new territory for ...

Dec 14, 2012
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