Duckshin PARK

Biographical note
Manager, Transportation Envorinmental Research Team

Presentation: Subway air quality
Air quality in subway is comparatively worse than in the indoor spaces of other public buildings at ground level. Therefore, passenger health becomes an increasing concern as they are exposed to such pollutants over a prolonged period of time. PM is a major pollutant in subway stations that is known to be generated from various factors such as subway train operation, passenger movement, and the inflow of outside air through the ventilation system. Epidemiological studies show that exposure to PM is highly hazardous to the body, since it raises the sensible pollution level and along with it is the possible occurrence of disease and death rates. As PM concentrations measured in subways are generally higher and more toxic than those in the air, they play a major role in deteriorating subway air quality and as such require proper control.