The titanium dioxide coating can absorb the pollution from 20 cars every day.

This article titled “New Simon Armitage poem fights pollution – literally” was written by Alison Flood, for theguardian.com on Wednesday 14th May 2014 11.29 UTC

A new poem from Simon Armitage is setting out to do more than merely tug at the emotions and expand the horizons of its readers: this particular piece of verse from the award-winning poet is intended to purify the air.

Armitage's In Praise of Air has been printed on a 10m by 20m piece of material which has been coated with microscopic pollution-eating particles of titanium dioxide. These use sunlight and oxygen to react with nitrogen oxide pollutants and purify the air, with the material said by the University of Sheffield, which devised it, to be capable of absorbing the pollution from 20 cars every day.

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