气候变化领域集成服务门户(CCPortal): From PM2.5 exposure to PM2.5 risks of inhaled dose in daily activities: Empirical evidence during workdays from guangzhou, China

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DOI	10.1016/j.atmosenv.2021.118224
	From PM2.5 exposure to PM2.5 risks of inhaled dose in daily activities: Empirical evidence during workdays from guangzhou, China
	Song J.; Zhou S.; Xu J.; Su L.
发表日期	2021
ISSN	1352-2310
卷号	249
英文摘要	PM2.5 pollution poses a serious health risk to residents. In recent years, individual exposure to PM2.5 in daily activities has received much attention, but the impact of different activities at different times and spaces on PM2.5-triggered individual health risks has been ignored. In this paper, the residents' activity diaries and the data on the spatial-temporal changes in urban PM2.5 concentration obtained through the land-use regression model (LUR) were coupled to dynamically evaluate and analyze the characteristics of Guangzhou residents' PM2.5 inhaled dose in 24 h during workdays. The study showed that the residents' PM2.5 inhaled dose in daily activities is about 940.2 ± 94.5 μg (95% CI). This can better reflect the individual differences than the exposure to PM2.5 in daily activities. For every increase of 1 μg/day in the exposure to PM2.5, the inhaled dose will increase by 1.5 μg/day. The obvious spatial-temporal characteristics of PM2.5 inhaled dose are closely related to people's daily activities. The inhaled dose is high during the day and low at night, and the individual differences in inhaled dose in the commuting and leisure period is significant but is small during the working and sleeping period; if the individual inhaled dose exceeds the population's average for accumulated 7 h in a day, the probability of a high risk of the all-day inhaled dose increases significantly. The inhaled dose at the workplace and residence as well as in light physical activities accounts for a large proportion of the total. However, although the inhaled dose on roads and in other places, and moderate physical activities account for only a small proportion, it has a great impact on the risk level of the individual total inhaled dose. Therefore, the characteristics of PM2.5 inhaled dose and the individual activity should be considered, to propose targeted policies and suggestions from the perspective of both the government and individuals to reduce the health risk caused by PM2.5 pollution. © 2021 The Author(s)
关键词	Assessment Daily activities Guangzhou Inhaled dose PM2.5
语种	英语
scopus关键词	Health; Land use; Pollution; Regression analysis; Guangzhou , China; Individual Differences; Individual exposures; Land-use regression models; Physical activity; PM2.5 concentration; Spatial-temporal changes; Spatial-temporal characteristics; Health risks; dose-response relationship; health risk; particulate matter; physical activity; pollution exposure; public health; risk factor; spatiotemporal analysis; urban area; adult; article; China; controlled study; daily life activity; government; health hazard; human; inhalational drug administration; land use; night; physical activity; PM2.5 exposure; probability; resident; sleep; working time; workplace; China; Guangdong; Guangzhou
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248553
作者单位	School of Geography and Planning, Sun Yat-sen University, Guangzhou, 510275, China; Guangdong Provincial Engineering Research Center for Public Security and Disaster, Guangzhou, 510275, China; Guangdong Key Laboratory for Urbanization and Geo-simulation, Guangzhou, 510275, China
推荐引用方式 GB/T 7714	Song J.,Zhou S.,Xu J.,et al. From PM2.5 exposure to PM2.5 risks of inhaled dose in daily activities: Empirical evidence during workdays from guangzhou, China[J],2021,249.
APA	Song J.,Zhou S.,Xu J.,&Su L..(2021).From PM2.5 exposure to PM2.5 risks of inhaled dose in daily activities: Empirical evidence during workdays from guangzhou, China.ATMOSPHERIC ENVIRONMENT,249.
MLA	Song J.,et al."From PM2.5 exposure to PM2.5 risks of inhaled dose in daily activities: Empirical evidence during workdays from guangzhou, China".ATMOSPHERIC ENVIRONMENT 249(2021).