INVESTIGATION ON THE IMPACT OF TRANSPORT EXHAUST EMISSIONS ON THE AIR

Abstract

The investigation carried out has revealed that in Vievis settlement and near the highway Vilnius ‐ Kaunas the highest concentrations of pollutants are emitted during morning and afternoon rush‐hours when motor transport traffic is the heaviest. Extremely high amounts of emitted aerosol particles were recorded 1–2 m away from the driving part, and 4–6 m away the amounts of aerosol particles sharply go down. CO gas concentrations caused by passing motor transport were also analysed. It has been set that the concentrations of CO and aerosol particles depend directly on motor transport traffic intensity. CO concentration goes evenly down receding from the driving part. In most cases maximum permitted concentration of CO was recorded.