作者
Xiaoxing Cui, Feng Li, Jianbang Xiang, Lin Fang, Ming Kei Chung, Drew B Day, Jinhan Mo, Charles J Weschler, Jicheng Gong, Linchen He, Dong Zhu, Chengjian Lu, Hailong Han, Yinping Zhang, Junfeng Jim Zhang
发表日期
2018/5/1
期刊
Environment international
卷号
114
页码范围
27-36
出版商
Pergamon
简介
Background
More than 90% of the world's population lives in areas where outdoor air pollution levels exceed health-based limits. In these areas, individuals may use indoor air filtration, often on a sporadic basis, in their residences to reduce exposure to respirable particles (PM2.5). Whether this intervention can lead to improvements in health outcomes has not been evaluated.
Methods
Seventy non-smoking healthy adults, aged 19 to 26 years, received both true and sham indoor air filtration in a double-blinded randomized crossover study. Each filtration session was approximately 13 h long. True and sham filtration sessions were separated by a two-week washout interval. The study was carried out in a suburb of Shanghai.
Results
During the study period, outdoor PM2.5 concentrations ranged from 18.6 to 106.9 μg/m3, which overlapped with levels measured in Western Europe and North America. Compared to …
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