To go with India-Italy-pollution-environ

To go with India-Italy-pollution-environment,FOCUS by Pratap Chakravarty Pedestrians take a look at a newly set up Air-Cleaning machine outside Palika Bazar market in New Delhi on March 8, 2010. India has switched on its first public air purifier in the heart of capital New Delhi as part of an experiment that backers say could help other smog-choked cities of the country. The maker of the seven-ton machine, Italy's Systemlife, claims the box-like structure can purify 10,000 cubic metres (13,079 cubic yards) of air every hour, scrubbing out pollutants such as carbon dioxide and nitrogen oxide. The unit, plugged in MArch 6 in a traffic-clogged area of central Delhi, is a pilot that could lead to more being installed in other areas of the city, ranked the world's fourth most polluted by World Health Organisation. AFP PHOTO/ MANAN VATSYAYANA (Photo credit should read MANAN VATSYAYANA/AFP via Getty Images)