title: Ultrafine particle air pollution inside diesel-propelled passenger trains.
abstract: Locomotives with diesel engines are used worldwide and are an important source of air pollution. Pollutant emissions by locomotive engines affect the air quality inside passenger trains. This study is aimed at investigating ultrafine particle (UFP) air pollution inside passenger trains and providing a basis for assessing passenger exposure to this pollutant. The concentrations of UFPs inside the carriages of push-pull trains are dramatically higher when the train operates in pull mode. This clearly shows that locomotive engine emissions are a dominant factor in train passengers' exposure to UFPs. The highest levels of UFP air pollution are observed inside the carriages of pull trains close to the locomotive. In push mode, the UFP number concentrations were lower by factors of 2.6-43 (depending on the carriage type) compared to pull mode. The UFP concentrations are substantially lower in diesel multiple-unit trains than in trains operating in pull mode. A significant influence of the train movement regime on the UFP NC inside a carriage is observed.
authors.affiliation: Technion - Israel Institute of Technology, Technion City, Haifa 3200003, Israel.
authors.forename: Victoria
authors.initials: V
authors.lastname: Abramesko
authors.affiliation: Technion - Israel Institute of Technology, Technion City, Haifa 3200003, Israel. Electronic address: tartak@technion.ac.il.
authors.forename: Leonid
authors.initials: L
authors.lastname: Tartakovsky
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000032:analysis; D016902:Air Pollution, Indoor / Q000032:analysis*; D004784:Environmental Monitoring; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D011890:Railroads / Q000706:statistics & numerical data*; D012828:Silicones; D001335:Vehicle Emissions / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D052638:Particulate Matter; D012828:Silicones; D001335:Vehicle Emissions
keywords: Commuters exposure to ultrafine particles; Diesel train; Indoor particle concentrations; Push-pull train; Ultrafine particles