DOI: 10.1016/j.atmosenv.2017.08.020
Scopus记录号: 2-s2.0-85029183713
论文题名: Trees in urban parks and forests reduce O3, but not NO2 concentrations in Baltimore, MD, USA
作者: Yli-Pelkonen V ; , Scott A ; A ; , Viippola V ; , Setälä H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 167 起始页码: 73
结束页码: 80
语种: 英语
英文关键词: Air pollution
; Ecosystem services
; Nitrogen dioxide
; Ozone
; Urban trees
; Urban vegetation
Scopus关键词: Air pollution
; Air quality
; Ecology
; Ecosystems
; Nitrogen
; Nitrogen compounds
; Nitrogen oxides
; Ozone
; Pollution
; Vegetation
; Ecosystem services
; Ground-level ozone
; Local air pollutions
; Nitrogen dioxides
; Pollutant concentration
; Traffic conditions
; Urban trees
; Urban vegetation
; Forestry
; nitrogen dioxide
; ozone
; air quality
; atmospheric pollution
; concentration (composition)
; ecosystem service
; greenspace
; high temperature
; nitrogen dioxide
; ozone
; perception
; phytoremediation
; pollutant removal
; pollution control
; temperature effect
; tree
; urban ecosystem
; vegetation structure
; air pollution
; Article
; canopy
; light
; Maryland
; microclimate
; priority journal
; recreational park
; solar radiation
; temperature
; tree
; United States
; urban area
; vegetation
; Baltimore
; Maryland
; Mid-Atlantic States
; United States
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: Trees and other vegetation absorb and capture air pollutants, leading to the common perception that they, and trees in particular, can improve air quality in cities and provide an important ecosystem service for urban inhabitants. Yet, there has been a lack of empirical evidence showing this at the local scale with different plant configurations and climatic regions. We studied the impact of urban park and forest vegetation on the levels of nitrogen dioxide (NO2) and ground-level ozone (O3) while controlling for temperature during early summer (May) using passive samplers in Baltimore, USA. Concentrations of O3 were significantly lower in tree-covered habitats than in adjacent open habitats, but concentrations of NO2 did not differ significantly between tree-covered and open habitats. Higher temperatures resulted in higher pollutant concentrations and NO2 and O3 concentration were negatively correlated with each other. Our results suggest that the role of trees in reducing NO2 concentrations in urban parks and forests in the Mid-Atlantic USA is minor, but that the presence of tree-cover can result in lower O3 levels compared to similar open areas. Our results further suggest that actions aiming at local air pollution mitigation should consider local variability in vegetation, climate, micro-climate, and traffic conditions. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82721
Appears in Collections: 气候变化事实与影响
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作者单位: University of Helsinki, Department of Environmental Sciences, University of Helsinki, P.O. Box 65, Finland; Johns Hopkins, Department of Earth and Planetary Sciences, 3400 N. Charles Street, Baltimore, MD, United States; University of Helsinki, Department of Environmental Sciences, Niemenkatu 73, Lahti, Finland
Recommended Citation:
Yli-Pelkonen V,, Scott A,A,et al. Trees in urban parks and forests reduce O3, but not NO2 concentrations in Baltimore, MD, USA[J]. Atmospheric Environment,2017-01-01,167