Design issues of integrated subway air quality management system base on particulate matter measurements

Nowadays, air quality problems are getting more serious. Without having a good outdoor air quality, indoor air quality also could be a serious problem. The Seoul Metro of Korea always wants to reduce air pollution in the subway stations for people using subway as daily transportation. Fine particles (such as, PM10, PM2.5) are well known pollutants that can cause many diseases. In this paper we discuss framework design of the Integrated Air Quality Management System for Subway (IUMS) in support of subway stations' air quality improvement. By using this system the Metro subway office clerks can automatically monitoring and controlling the status of air quality in a subway station. To make this IT-based air quality system more efficient and realistic, PM10 mass and ion had been measured at the four subway stations in Seoul. The measurements were conducted in four different compartments in a station so that we can find sources and processes of particle pollution. From these joint effort of IT-ET, we are expecting to get cleaner-but-greener air quality management system.