Eurovia’s paving that absorbs air pollution
Monday, April 30th, 2012Steve Van Dulken writes in his British Library patents blog: “French company Eurovia will be installing paving slabs that absorb air pollution in Kendal, Cumbria, next month. The name for the product is NOxer®.”
“The coating is a mixture of spruce wood, cement, water and titanium dioxide. When it receives ultraviolet sunlight, it is able to absorb nitrogen oxide, which is emitted by car exhausts. The pollutants become nitrate ions, which are either washed away by rain or absorbed harmlessly into the paving.”
“The new paving has already been used in many towns in Japan. Eurovia has a page about the product. It sounds like a very interesting development, though I’m not clear how much more expensive it is than normal paving, and how effective it is in reducing air pollution for the pedestrians.”
[Source British Library blog as above]