Author(s)

L.Y. Chan & Y.M. Liu

Abstract

Automobile emission is the major source of air pollution in Hong Kong. Many people are not aware of the importance of air quality inside vehicle compartments. In this study, in-vehicle CO level was measured in a light goods vehicle. The vehicle was driven over different districts and commuting roads. Results indicate that the in-vehicle CO level is the highest while traversing tunnels. Higher in-vehicle CO level was recorded in area related to commercial activities. Lower in-vehicle CO level was measured in remote area and highways. Self-emitted and surrounding vehicle exhaust are the sources of in- vehicle CO level. CO intrudes into vehicle compartment through the leaks. Ambient CO level and AADT in

Keywords