Data generated by CPCB of ambient air quality in various cities and towns of India under National Air Quality Monitoring Programme (NAMP) have been analyzed. A decreasing trends has been obseved in ambient sulphur dioxide levels in many cities like Delhi, Hyderabad, Kanpur, Lucknow, Mumbai etc. This may be due to various interventions like reduction of sulphur in diesel, use of CNG as the vehicular fuel in Delhi and Mumbai etc.

Municipal solid waste (MSW) management is considered to be one of the major problems being faced by municipalities in the developing countries around the world and National Capital Territory of Delhi in India is not an exception. Appropriate solid waste management of a city is crucial for public health and aesthetic surroundings. The objectives of the present study are to assess the strategies adopted by the various civic agencies for management of MSW and to determine the qualitative and quantitative characteristics of the waste produced.