서울 한강변 자전거 도로의 시공간적 대기오염 특징

Abstract

Bicycle way is generally located near the motor road due to the limitation of available space and convenient use. People who use bicycle may inhale highly polluted air during the travelling over the bicycle way. In this study, spatial and temporal variation of air quality over bicycle way was investigated using a mobile laboratory equipped with real-time monitoring instruments. Size distribution of particles ranging from 5.6~560 nm, black carbon, and particle-bound PAHs (polycyclic aromatic hydrocarbons) were monitored. In addition, NO, NO2, and NOx were measured. They are indicators of vehicle exhaust. Air pollution level over bicycle way was compared with those of expressway and city road, and the nearest ambient air quality monitoring station. As expected, the air pollution level over bicycle road was high during the commuting time due to the heavy traffic volume. The air pollution level at the location close to the expressway was almost the same as that of the expressway. It is suggested that cyclists need to be cautious about highly polluted air over bicycle way.