DOI: 10.1016/j.atmosenv.2017.06.007
Scopus记录号: 2-s2.0-85020702772
论文题名: Contribution of time-activity pattern and microenvironment to black carbon (BC) inhalation exposure and potential internal dose among elementary school children
作者: Jeong H ; , Park D
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 164 起始页码: 270
结束页码: 279
语种: 英语
英文关键词: Black carbon (BC)
; Contribution
; Exposure
; Intensity
; Microenvironment (ME)
; Potential inhaled dose
; Time-activity pattern
Scopus关键词: Earth atmosphere
; Black carbon
; Contribution
; Exposure
; Intensity
; Microenvironments
; Potential inhaled dose
; Time activity patterns
; Atmospherics
; black carbon
; activity pattern
; black carbon
; child health
; education
; pollution exposure
; urban area
; Article
; child
; clinical article
; environmental exposure
; environmental monitoring
; follow up
; human
; Korea
; microenvironment
; motor vehicle
; primary school
; priority journal
; season
; time
; traffic and transport
; travel
; urban area
; Korea
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: The aims of this study were to quantify the contributions of activities or microenvironments (MEs) to daily total exposure to and potential dose of black carbon (BC). Daily BC exposures (24-h) were monitored using a micro-aethalometer micoAeth AE51 with forty school-aged children living in an urban area in Korea from August 2015 to January 2016. The children's time-activity patterns and the MEs they visited were investigated by means of a time-activity diary (TAD) and follow-up interviews with the children and their parents. Potential inhaled dose was estimated by multiplying the airborne BC concentrations (μg/m3) we monitored for the time the children spent in a particular ME by the inhalation rate (IR, m3/h) for the time-activity performed. The contribution of activities and MEs to overall daily exposure to and potential dose of BC was quantified. Overall mean daily potential dose was equal to 24.1 ± 10.6 μg/day (range: 6.6–46.3 μg/day). The largest contribution to BC exposure and potential dose (51.9% and 41.7% respectively) occurred in the home thanks to the large amount of time spent there. Transportation was where children received the most intense exposure to (14.8%) and potential dose (20.2%) of BC, while it accounted for 7.6% of daily time. School on weekdays during the semester was responsible for 20.3% of exposure and 22.5% of potential dose. Contribution to BC exposure and potential dose was altered by several time-activity parameters, such as type of day (weekdays vs. weekends; school days vs. holidays), season, and gender. Traveling by motor vehicle and subway showed more elevated exposure or potential dose intensity on weekdays or school days, probably influenced by the increased surrounding traffic volumes on these days compared to on weekends or holidays. This study may be used to prioritize targets for minimizing children's exposure to BC and to indicate outcomes of BC control strategies. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82775
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Environmental Health, Korea National Open University, South Korea
Recommended Citation:
Jeong H,, Park D. Contribution of time-activity pattern and microenvironment to black carbon (BC) inhalation exposure and potential internal dose among elementary school children[J]. Atmospheric Environment,2017-01-01,164