Author:
Hong Shengyang,Wang Chengcong,Wang Wenjie,Zhang Peng,Guo Yujie,Ma Zijun,Hong Wenhai,Ren Zhibin
Abstract
Abstract
Context
Air pollution significantly impacts urban sustainable development and public health. Urban ozone pollution (UOP) is currently one of the most challenging tasks for urban air pollution control, and is possibly linked to urban morphology. However, the effect of urban two-dimensional (2D) (coverage or density, etc.) and three-dimensional (3D) (density + height, etc.) morphology on the UOP concentration remains unclear.
Objectives
The objective of this study was to explore the influence of urban morphology on UOP concentration and provide useful information to control urban air pollutants.
Methods
First, based on building height and remotely sensed UOP data from 68 Chinese cities, the general spatial pattern of urban 3D morphology and UOP was detected across different climate zones in China. Then, this study used variance decomposition to investigate the contribution of 2D and 3D urban morphology to UOP in China.
Results
The study showed that China's urban morphology was dominated by Medium Rise & Medium Density (MRMD). Large cities had higher UOP levels in summer, especially for the urban morphology with Low Rise & High Density (LRHD). Further, UOP concentrations were substantially higher in the southern temperate zone than in other climatic zones. Anthropogenic factors (rather than natural factors) were always the dominant factors influencing UOP across different seasons; specifically, urban 2D and 3D morphology can explain 40% of UOP variation. The effects of urban 3D and 2D morphologies on UOP concentrations varied seasonally. Urban 2D morphology dominated in spring, whereas 3D morphology dominated in winter.
Conclusions
Our study elucidates the effect of urban morphology on UOP and provides insights for sustainable urban development.
Funder
Youth Innovation Promotion Association of the Chinese Academy of Sciences
National Natural Science Foundation of China
the Strategic Priority Research Program of the Chinese Academy of Sciences
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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