Pavement coating to ‘eat’ pollution
12 April 2012
An invisible pavement coating that can "eat" pollution is to be tested on the capital's worst-affected streets.
Transport for London has modified a winter gritting machine to spray the coating onto roads, and hopes it will reduce levels of PM10, one of the most harmful types of pollution, by up to 20 per cent.
The coating is made up of calcium magnesium acetate and sticks the polluted matter to the roads, preventing it re-circulating in the air. It is used in several European cities, including Barcelona.
If the trial is a success, the system could be used throughout London.
