Highlights ► In-cabin PM2.5 is linearly proportional to a HSR’s load factor. ► PM2.5 concentrations are inversely proportional to the outside air exchange rates. ► PM2.5 concentrations inside the dinning cabin are much greater than in passenger carriages.
Abstract Exposure to PM2.5 and CO2 inside standard high-speed Chinese rail carriages is examined. The concentrations, 0.07mg/m3 and 1200ppm, are found to be significantly affected by passenger numbers, ventilation systems, and the carriage class. As passengers increase from 10 to 80 in a carriage, the concentrations increases by up to 0.04mg/m3 in the passenger-breathing zone, and are inversely proportional to the air exchange rate. The greatest in-carriage PM2.5 concentration are found in the dinning carriage, with lower but similar levels found in other carriage classes. More rapid air turnover leads to slightly higher PM2.5 removal.
Commuter exposure to particle matter and carbon dioxide inside high-speed rail carriages
2013-01-01
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Commuter exposure to particle matter and carbon dioxide inside high-speed rail carriages
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