This study identified concentrations of air pollutants emitted from idling of vehicles such as cars, taxis, trucks, and buses. In this investigation we analyzed concentrations of SO2, NOx, CO, and CO2 emitted from exhaust pipe of vehicles as a function of vehicle type, mileage, exhaust volume, and fuel type using the GreenLine.
Compact or light cars, which have relatively low exhaust volume, showed much higher exhaust concentrations of SO2, CO, and NOx than those emitted from vehicles with high exhaust volume. Vehicles using light oil showed much higher exhaust NOx concentrations than those of vehicles using gasoline. Vehicles using LPG and compact cars showed very high exhaust CO concentration compared to other vehicles. NOx exhaust concentrations were increased with increasing the mileage of vehicles.

• 이병규(울산대학교 토목환경공학부) | Byeong Kyu Lee
• 조성웅(울산대학교 토목환경공학부) | Sung Woong Cho
• 나덕재(울산대학교 토목환경공학부) | Deok Jae Na
• 정혁용(울산대학교 토목환경공학부) | Hyuk Yong Jung
• 정광륜(울산대학교 토목환경공학부) | Kwang Ryun Jung
• 이채복(울산대학교 토목환경공학부) | Chae Bog Lee