PM 2.5 on the London Underground.

J D Smith,B M Barratt,G W Fuller,F J Kelly,M Loxham, E Nicolosi,M Priestman,A H Tremper, D C Green

Environment International（2020）

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摘要

•PM2.5 concentrations on the London Underground are higher than ambient and other subway systems.•Dust is generated by the wear of train components and resuspended by passing trains.•Variability is caused by ventilation rates and is highest in long underground sections.•The differing chemical composition of PM2.5 necessitates calibration of portable instruments.

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关键词

PM2.5,Subway,Exposure,Composition,Metro

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