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The interplay between ozone and urban vegetation – BVOC emissions, ozone deposition, and tree ecophysiology

Fitzky, Anne Charlott; Sandén, Hans; Karl, Thomas; Fares, Silvano; Calfapietra, Carlo; Grote, Rüdiger; Saunier, Amelie; Rewald, Boris

Abstract (englisch):
Tropospheric ozone (O3) is one of the most prominent air pollution problems in Europe and other countries worldwide. Human health is affected by O3 via the respiratory as well the cardiovascular systems. Even though trees are present in relatively low numbers in urban areas, they can be a dominant factor in the regulation of urban O3 concentrations. Trees affect the O3 concentration via emission of biogenic volatile organic compounds (BVOC), which can act as a precursor of O3, and by O3 deposition on leaves. The role of urban trees with regard to O3 will gain further importance as NOx concentrations continue declining and climate warming is progressing—rendering especially the urban ozone chemistry more sensitive to BVOC emissions. However, the role of urban vegetation on the local regulation of tropospheric O3 concentrations is complex and largely influenced by species-specific emission rates of BVOCs and O3 deposition rates, both highly modified by tree physiological status. In this review, we shed light on processes related to trees that affect tropospheric ozone concentrations in metropolitan areas from rural settings to urban centers, and discuss their importance under present and future conditions. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000098200
Veröffentlicht am 10.09.2019
DOI: 10.3389/ffgc.2019.0050
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Umweltforschung (IMK-IFU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 2624-893X
KITopen-ID: 1000098200
HGF-Programm 12.02.04 (POF III, LK 01)
Urban-Rural Interactions
Erschienen in Frontiers in Forests and Global Change
Band 2
Heft 50
Seiten 1-17
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