Multi-scenario PM2.5 distribution and dynamic exposure assessment of university community residents: Development and application of intelligent health risk management system integrated low-cost sensors

被引：0

作者：

Ou, Changhong ^{[1
,2
]}

Li, Fei ^{[1
,2
]}

Zhang, Jingdong ^{[1
,2
]}

Jiang, Pei ^{[1
,2
]}

Li, Wei ^{[1
,2
]}

Kong, Shaojie ^{[1
,2
]}

Guo, Jinyuan ^{[1
,2
]}

Fan, Wenbo ^{[1
,2
]}

Zhao, Junrui ^{[1
,2
]}

机构：

[1] Research Center for Environment and Health, Zhongnan University of Economics and Law, Wuhan,430073, China

[2] School of Information and Safety Engineering, Zhongnan University of Economics and Law, Wuhan,430073, China

来源：

Environment International | 2024年 / 185卷

关键词：

Air quality - Costs - Housing - Internet of things - Risk assessment - Risk management - Risk perception;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Exposure scenario and receptor behavior significantly affect PM2.5 exposure quantity of persons and resident groups, which in turn influenced indoor or outdoor air quality & health management. An Internet of Things (IoT) system, EnvironMax+, was developed to accurately and conveniently assess residential dynamic PM2.5 exposure state. A university community QC, as the application area, was divided into four exposure scenarios and five groups of residents. Low-cost mobile sensors and indoor/outdoor pollution migration (IOP) models jointly estimated multi-scenario real-time PM2.5 concentrations. Questionnaire was used to investigate residents' indoor activity characteristics. Mobile application (app) Air health management (AHM) could automatic collect residents' activity trajectory. At last, multi-scenario daily exposure concentrations of each residents-group were obtained. The results showed that residential exposure scenario was the most important one, where residents spend about 60 % of their daily time. Closing window was the most significant behavior affecting indoor contamination. The annual average PM2.5 concentration in the studied scenarios: residential scenario (RS) 3. The multi-scenario population weighted annual average exposure concentration was 37.1 μg/m3, which was 78 % of the annual average outdoor concentration. The exposure concentration of 5 groups: cooks > outdoor workers > indoor workers > students > the elderly, related to their daily activity time proportion in different exposure scenario. © 2024 The Author(s)

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