EMISSION CONTROL STRATEGY FOR SRI LANKA BY IMPROVING VEHICLE INSPECTION & MAINTENANCE ACTIVITIES

Abstract

For the economic development of a country increase in transport industry activity is vital.This will inevitably expose a large portion of urban population exposed to automobilepollution emission. Hence, there is a great need or an emission control strategy to minimizethe adverse effects due to pollution by vehicle emission

In some parts or the world this problem has been addressed by approaches such as trafficmanagement measures, established emission standards. cffccti ve vehicle inspection andmaintenance programmes (11M programmes). encouraging public transport. encouragingcleaner fuel and road user charges etc. Even though some of the above measures have heeninitiated in Sri Lanka. vehicle emission standards or effective 11M programme arc almostnon-ex istent.

This paper discusses the present situation of vehicle emission in Sri Lanka and identifiespossible measures that could he adopted to control vehicle emission by changing the vehicletechnology standards. An overview of principles of automobile emission formation, mainsources of emissions, the effects of the fuels used and emission related combustionchemistry is also presented.

The historical development of motor vehicle emission control technology and the standardsset by the developed nations have been analysed to identify probable measures to controlvehicle emissions in Sri Lanka in the near future with affordable technology. Vehicleemission estimates 1'01' different 11M measures, fuel types and vehicle growth scenarios arecompared to identify efficient measures in emission control. In estimating vehicle emissionsthe guidelines given by the Intergovernmental Panel on Climate change ({PCC) andemission factors developed to suit the Sri Lankan conditions have been used.