DOI: 10.1016/j.scitotenv.2019.135458
论文题名: The impact of urban agglomeration on ozone precursor conditions: A systematic investigation across global agglomerations utilizing multi-source geospatial datasets
作者: Li J. ; Gao Y. ; Huang X.
刊名: Science of the Total Environment
ISSN: 489697
出版年: 2020
卷: 704 语种: 英语
英文关键词: Geospatial datasets
; Global
; Ozone precursor condition
; Urban agglomeration
Scopus关键词: Industrial emissions
; Nitrogen oxides
; Ozone
; Volatile organic compounds
; Developing regions
; Geo-spatial
; Global
; Ozone precursors
; Precursor concentration
; Spatio-temporal variation
; Temporal dynamics
; Urban agglomerations
; Agglomeration
; formaldehyde
; nitrogen dioxide
; nitrogen oxide
; ozone
; volatile organic compound
; agglomeration
; data set
; nitrogen oxides
; ozone
; spatial data
; urban area
; urbanization
; volatile organic compound
; air pollution
; air temperature
; Article
; climate change
; concentration (parameter)
; controlled study
; developed country
; developing country
; dispersion
; environmental policy
; human activities
; humidity
; industrial waste
; land use
; latitude
; population density
; priority journal
; satellite imagery
; solar radiation
; spatiotemporal analysis
; urbanization
; validation process
; vegetation
英文摘要: Urbanization significantly influences ozone via two conditions of its formation: 1) precursor concentration; and 2) chemical regime. Recently, there has been raised concern about the influence of urban agglomerations on these two conditions. Although valuable efforts have been made, some contrary viewpoints exist. Meanwhile, urban agglomerations in developed and developing regions are experiencing different urbanization processes, so a systematic comparison between these two regions is warranted. In this context, by leveraging multi-source geospatial datasets, this paper systematically gauges the influence of urban agglomerations on ozone precursor conditions and further investigates the spatiotemporal variations. Based on the analysis of 71 global agglomerations during 2005–2016, it is found that: 1) not all urban agglomerations have a positive effect on ozone precursor conditions; 2) the negative effects of urban agglomerations can be attributed to the low latitudes and the ecological areas (p < 0.05); 3) the agglomeration influence intensifies with the increase of built-up area, population, and latitude (p < 0.05); 4) the anthropogenic nitrogen oxide (NOx) emission from all sectors can aggravate the magnitude of the urban agglomeration influence (p < 0.05), while for volatile organic compounds (VOCs), only the contribution of industrial emissions is significant (p < 0.05); and 5) in view of the temporal dynamics, the influence of urban agglomeration on ozone precursor condition is opposite in developed and developing regions. This study will provide important insights for future urban agglomeration studies and ozone pollution monitoring with geospatial datasets. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159222
Appears in Collections: 气候变化与战略
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作者单位: School of Remote Sensing and Information Engineering, Wuhan University, Wuhan, 430079, China; State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University, Wuhan, 430079, China
Recommended Citation:
Li J.,Gao Y.,Huang X.. The impact of urban agglomeration on ozone precursor conditions: A systematic investigation across global agglomerations utilizing multi-source geospatial datasets[J]. Science of the Total Environment,2020-01-01,704