Air pollution is an emerging environmental issue in Asia as it is in other parts of the world. In particular, emissions of sulphur dioxide and nitrogen oxides have been rising steadily over the past few decades. In addition, rapid growth of cities, together with associated expansion of industry and transport systems, has made the Asian region increasingly concerned with these emissions.

After consultations and study of the European and American experiences in coping with atmospheric pollution, the UNEP RRC.AP is following a three-stage approach to promote the policy cycle in the region. The program includes i) raise awareness amongst the policymakers and scientific community; ii) build regional capacity for a network monitoring mechanism to collect and analyze data; and iii) take measures to reduce emissions through strongly improved energy use efficiency, economic and/or legal instruments.