The influence of street layouts and viaduct settings on daily carbon monoxide exposure and intake fraction in idealized urban canyons

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• 作者：Jian Hang^a ; Zhiwen Luo^b ; ^{z.luo@reading.ac.uk} ; Xuemei Wang^a ; Lejian He^a ; Baomin Wang^a ; Wei Zhu^a
• 关键词：Street canyon ; Intake fraction ; Daily pollutant exposure ; Viaduct ; Noise barrier
• 刊名：Environmental Pollution
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：220
• 期：part_PA
• 页码：72-86
• 全文大小：4290 K
• 卷排序：220

文摘

Intake fraction (IF) and daily CO exposure are adopted to assess human exposure. Effects of street layouts, viaduct/noise barriers and source locations are studied. Viaducts attain smaller human exposure if single source is elevated onto viaduct. Noise barriers raise CO concentration above a viaduct, but reduce indoor exposure. Indoor exposure to traffic emissions is much greater than that at pedestrian level.