대중교통 차량의 실외 미세먼지 유입에 관한 연구

Abstract

The purpose of this study was to calculate indoor particles inflow rate according to ventilation methods of public transport buses. Air leakage rate, ventilation rate and indoor particle concentration are measured in different ventilation system modes, and the indoor particles inflow rate is calculated on ventilation modes. From the results of measurement, it was found that air leakage rate and ventilation rate have a variety values(9.6~ 312.0㎥/h). For inflow rate, PM10 was derived from 40~80%, and PM2.5 was 80~100%. These results indicate that to control the concentration of particle mattes in public transport, improvement of ventilation system design is necessary, especially PM2.5.