Urban trees and air pollution: Effect of drought and salt stress on the production of VOC and absorption of ozone by different city trees
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 BVOC emissions and the ozone uptake 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.
Publikationen
Project staff
Monika Mayer
Mag. Dr. Monika Mayer
monika.mayer@boku.ac.at
Tel: +43 1 47654-81427
Project Leader
12.07.2022 - 28.02.2023
Project Staff
01.03.2018 - 11.07.2022
Heidelinde Trimmel
Dipl.-Ing. Dr. Heidelinde Trimmel
heidelinde.trimmel@boku.ac.at
Tel: +43 1 47654-81425
Project Leader
01.03.2018 - 11.07.2022
Ramiro Checa-Garcia
Dr. Ramiro Checa-Garcia
ramiro.checa-garcia@boku.ac.at
Project Staff
01.03.2018 - 28.02.2023
Josef Eitzinger
Univ.Prof. Dipl.-Ing. Dr.nat.techn. Josef Eitzinger
josef.eitzinger@boku.ac.at
Tel: +43 1 47654-81422
Project Staff
01.03.2018 - 28.02.2023
Harald Rieder
Univ.Prof. Mag. Dr. Harald Rieder
harald.rieder@boku.ac.at
Tel: +43 1 47654-81401, 81411
Project Staff
01.03.2018 - 28.02.2023
Christian Schmidt
Christian Schmidt MSc.
christian.schmidt@boku.ac.at
Project Staff
01.03.2018 - 28.02.2023
Philipp Weihs
Ao.Univ.Prof. Mag.rer.nat. Dr.rer.nat. Philipp Weihs
philipp.weihs@boku.ac.at
Tel: +43 1 47654-81424
Project Staff
01.03.2018 - 28.02.2023