Delhi smog points to worsening air quality
New Delhi, November 7, 2009: Delhi has finally lost the gains of its CNG programme. Its air is increasingly becoming more polluted and unbreathable, bringing back the pre-CNG days when diesel-driven buses and autos had made it one of the most polluted cities on earth: says the Centre for Science and Environment (CSE) in its latest analysis of recent air quality data in Delhi.