2018年PM2.5外文翻译--PM2.5对城市室内环境的影响综述（节选）

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1、7700 英文单词， 4.2 万英文字符 ，中文 1.3 万字 文献出处： Martins N R, Da Graa G C. Impact of PM2. 5 in indoor urban environments: a reviewJ. Sustainable Cities and Society 42 (2018) 259275 Impact of PM2.5 in indoor urban environments: A review Nuno R. Martins, Guilherme Carrilho da Graa ABSTRACT Airborne ne particulat

2、e matter (PM2.5) is a pollutant that is found in all urban environments. PM2.5 is pre- dominantly generated by traffic and domestic fuel combustion and has signicant negative health impacts. The ever-growing urban population spends most of their time in indoor environments where it is exposed to PM2

3、.5 that is brought in from the outdoor environment by ventilation airow. Several studies show this inow of outdoor PM2.5, combined with internal sources (e.g. indoor combustion, particle re-suspension) can lead to an I/ O ratio above one: indoor air quality is lower than outdoors. The most common ap

4、proach to limit ventilation inow of PM2.5 is the use of mechanical ventilation systems with cloth lters that can signicantly increase ventilation fan energy consumption. Decreasing exposure to PM2.5 is challenging, requiring a thorough understanding of PM2.5s origin and the interaction between build

5、ings and their surrounding environment. This review of the impact of PM2.5 in indoor urban environments summarizes existing research in this area, specically, the main PM2.5 sources and sinks in outdoor and indoor urban environments, the PM2.5 exposure limits that are currently applicable throughout

6、 the world, the main socio-economic impacts of exposure to PM2.5 and the most promising solutions to minimize indoor exposure. Keywords: Review; PM2.5; Fine particles; Particle exposure ;Indoor air; Air quality modeling 1. Introduction The term air pollution refers to a group of airborne pollutants that are known to contribute to decreased life expectancy (Baklanov, Molina, & Gauss, 2016), namely: carbon monoxide (CO), sulfur and nitrogen oxides (SOx and NOx), ozone (O3) and airbo