Exposure and health impact evaluation based on simultaneous measurement of indoor and ambient PM2.5 in Haidian, Beijing
文献类型：期刊论文
| 作者 | Tao, Shu; Xing, Baoshan; Qi, Meng; Zhu, Xi; Du, Wei; Chen, Yilin; Chen, Yuanchen; Huang, Tianbo; Pan, Xuelian; Zhong, Qirui |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2017 |
| 卷号 | 220期号:2页码:704-712 |
| 关键词 | Pm2.5 Indoor Air I/o Modeling Population Exposure |
| 英文摘要 | Because people spend most of their time indoors, the characterization of indoor air quality is important for exposure assessment. Unfortunately, indoor air data are scarce, leading to a major data gap in risk assessment. In this study, PM2.5 concentrations in both indoor and outdoor air were simultaneously measured using on-line particulate counters in 13 households in Haidian, Beijing for both heating and non-heating seasons. A bimodal distribution of PM2.5 concentrations suggests rapid transitions between polluted and non-polluted situations. The PM2.5 concentrations in indoor and outdoor air varied synchronously, with the indoor variation lagging. The lag time in the heating season was longer than that in the non-heating season. The particle sizes in indoor air were smaller than those in ambient air in the heating season and vice versa in the non-heating season. PM2.5 concentrations in indoor air were generally lower than those in ambient air except when ambient concentrations dropped sharply to very low levels or there were internal emissions from cooking or other activities. The effectiveness of an air cleaner to reduce indoor PM2.5 concentrations was demonstrated. Non-linear regression models were developed to predict indoor air PM2.5 concentrations based on ambient data with lag time incorporated. The models were applied to estimate the overall population exposure to PM2.5 and the health consequences in Haidian. The health impacts would be significantly overestimated without the indoor exposure being taken into consideration, and this bias would increase as the ambient air quality improved in the future. (C) 2016 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39020]  |
| 专题 | 生态环境研究中心_城市与区域生态国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Tao, Shu,Xing, Baoshan,Qi, Meng,et al. Exposure and health impact evaluation based on simultaneous measurement of indoor and ambient PM2.5 in Haidian, Beijing[J]. ENVIRONMENTAL POLLUTION,2017,220(2):704-712. |
| APA | Tao, Shu.,Xing, Baoshan.,Qi, Meng.,Zhu, Xi.,Du, Wei.,...&Zeng, Eddy Y..(2017).Exposure and health impact evaluation based on simultaneous measurement of indoor and ambient PM2.5 in Haidian, Beijing.ENVIRONMENTAL POLLUTION,220(2),704-712. |
| MLA | Tao, Shu,et al."Exposure and health impact evaluation based on simultaneous measurement of indoor and ambient PM2.5 in Haidian, Beijing".ENVIRONMENTAL POLLUTION 220.2(2017):704-712. |
入库方式： OAI收割
来源：生态环境研究中心
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