Increased vehicle emission in Colombo is one of the most important environmental issues that has drawn the attention of policymakers, administrators, and environmentalists in the recent past. Various studies undertaken by regulatory agencies and researchers clearly indicate that inefficient...

The city of Colombo is gradually being choked to death by motor traffic and urgently needs to implement a raft of economic measures to curb emissions. This is the verdict of a study that has attracted the attention of local policymakers. The study looked at the growth of traffic in the city and...

Ground level ozone pollution is one of the most significant air pollution problems in Beijing. Because of the complex way in which ozone is formed, it is difficult for policy makers to decide which ozone control options are the most cost-effective. This study, assessed a range of options for...