Union Environment Minister Prakash Javadekar today said Air quality in Delhi has been going from bad to worse and the situation is serious and government has prepared a one-year plan to improve it. <br/><br/>Talking to media at New Delhi, he said steps have been taken to improve air pollution levels in the national capital and support has been sought from various agencies and governments, besides public, in winning the war against pollution.<br/><br/>He said with consistent efforts of working with state governments of Punjab and Haryana, stubble burning this time has come down by 25 per cent which is a major relief.<br/> <br/>Mr Javadekar said all know that air pollution is a global problem in many cities world over and in Delhi, air quality is going from bad to worse for last 10 years.