Urban trees and air pollution: Effect of drought and salt stress on the production of VOC and absorption of ozone by different city trees

Sanden Hans

Institute of Forest Ecology

01.03.2018 - 28.02.2023

Research project (§ 26 & § 27)

Program Environmental Systems Research

Funder National: Institutions under Public Law

Competencies

Boden und Landökosysteme
Wasser - Atmosphäre - Umwelt
Lebensraum und Landschaft

Abstract

Ozone is a serious health problem in many cities during hot summer days. The ozone causes breathing problems as well as heart diseases and WHO has lately lowered the recommended limits exposure concentration. City trees can both increase and decrease the ozone levels depending on the environmental conditions. The increase of ozone is caused by the release of volatile organic compounds (VOC) which in the presents of NOx produce ozone. On the other hand leaves can decrease ozone levels trough deposition processes. The trees influence on both production of ozone and absorption depends on species but also on the physiological status of the tree such as drought or salt stress. By measuring the VOC production as well as the ozone absorption of species commonly used as street trees we can identify species that at high temperatures has a large capacity to decrease ozone concentrations. Further we can test how the influence on the ozone concentration is affected by drought and salt stress and how the response differs between species. The results will be used to model the ozone concentrations in Vienna The findings and the improved model can in the future be used as decision tools when planning the urban landscape to minimize ozone peaks.

Publications

Ozone and BVOC interactions on leaf surfaces of stressed urban trees: A project plan

Autoren: Fitzky, A; Halbwirth, H; Trimmel, H; Weihs, P; Rieder-Gradinger, C; Srebotnik, E; Karl, T; Rewald, B; Godbold, D; Sandén, H Jahr: 2018

Conference & Workshop proceedings, paper, abstract
Combined effects of ozone and drought stress on the emission of biogenic volatile organic compounds from Quercus robur L.

Autoren: Peron, A; Kaser, L; Fitzky, AC; Graus, M; Halbwirth, H; Greiner, J; Wohlfahrt, G; Rewald, B; Sandén, H; Karl, T Jahr: 2020

Journal articles
Combined effects of ozone and drought stress on the emission of biogenic volatile organic compounds from Quercus robur L.

Autoren: Arianna Peron; Lisa Kaser; Anne Charlott Fitzky; Martin Graus; Heidi Halbwirth; Jürgen Greiner; Georg Wohlfahrt; Boris Rewald; Hans Sandén; Thomas Karl Jahr: 2021

Journal articles
Constitutive VOC emissions of four common European tree species

Autoren: Fitzky, AC; Peron, A; Kaser, L; Karl, T; Graus, M; Tholen, D; Pesendorfer, M; Mahmoud, M; Sandén, H; Rewald, B Jahr: 2021

Conference & Workshop proceedings, paper, abstract
Diversity and Interrelations Among the Constitutive VOC Emission Blends of Four Broad-Leaved Tree Species at Seedling Stage

Autoren: Anne Charlott Fitzky; Arianna Peron; Lisa Kaser; Thomas Karl; Martin Graus; Danny Tholen; Mario Pesendorfer; Maha Mahmoud; Hans Sandén; Boris Rewald Jahr: 2021

Journal articles
Diversity and interrelations among the constitutive BVOC emission blends and changes during salt and drought stress of four broad-leaved tree species at seedling stage

Autoren: Fitzky, AC; Peron, A; Kaser, L; Karl, T; Graus, M; Tholen, D; Pesendorfer, M; Mahmoud, M; Trimmel, H; Halbwirth, H; Sandén, H; Rewald, B Jahr: 2022

Conference & Workshop proceedings, paper, abstract
Diversity and interrelations among the constitutive BVOC emission blends as affected by salt and drought stress

Autoren: Fitzky, AC; Peron, A; Kaser, L; Karl, T; Graus, M; Tholen, D; Pesendorfer, M; Mahmoud, M; Sandén, H; Rewald, B Jahr: 2022

Conference & Workshop proceedings, paper, abstract
The Interplay Between Ozone and Urban Vegetation—BVOC Emissions, Ozone Deposition, and Tree Ecophysiology

Autoren: Anne Charlott Fitzky; Hans Sandén; Thomas Karl; Silvano Fares; Carlo Calfapietra; Rüdiger Grote; Amélie Saunier; Boris Rewald Jahr: 2019

Journal articles