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Số người truy cập: 106,077,209

 Personal Exposure to Airborne Particles in Transport Micro-Environments and Potential Health Impacts: A Tale of Two Cities.
Tác giả hoặc Nhóm tác giả: Tran, P.T., Nguyen, T. and Balasubramanian, R.,
Nơi đăng: Sustainable Cities and Society; Số: 63;Từ->đến trang: 102470;Năm: 2020
Lĩnh vực: Môi trường; Loại: Bài báo khoa học; Thể loại: Quốc tế
TÓM TẮT
ABSTRACT
The present study investigated the personal exposure (PE) of commuters to fine particles (PM2.5) and black carbon (BC) in two cities: Singapore and Danang (Vietnam) with different socio-economic conditions. The PE measurement was conducted during a multimodal round trip from Singapore to Danang and back with various on-road transport modes in urban micro-environments within each city by using portable devices. Real-time assessment of PE revealed that more than 60% of the integrated inhaled dose of PM2.5 by commuters to occurred at airport concourses and transit micro-environments to/from the aeroplane by apron bus. Whereas for BC, the transit by apron bus made a major contribution (> 50%) to the total integrated exposure. The PE to PM2.5 and BC in transport micro-environments was an order of magnitude higher in Danang compared to Singapore while using various on-road modes of transport in each city. Elevated concentrations of airborne particles in Singapore and Danang were significantly contributed by heavy-duty diesel vehicles and motorcycles, respectively. Moreover, a reduction in years of life expectancy is likely to occur among urban commuters while using motorized transport compared to active mobility (cycling).
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