A dynamic plant chamber system with downstream reaction chamber to study the effects of pollution on biogenic emissions
J. Timkovsky1, P. Gankema2, R. Pierik2, and R. Holzinger11Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, the Netherlands 2Plant Ecophysiology, Institute of Environmental Biology, Utrecht University, the Netherlands
Received: 30 Sep 2013 – Accepted for review: 12 Oct 2013 – Discussion started: 22 Oct 2013
Abstract. A system of two dynamic plant chambers and a downstream reaction chamber has been set up to investigate the emission of biogenic volatile organic compounds (BVOC) and possible effects from pollutants such as ozone. The system can be used to compare BVOC emissions from two sets of differently treated plants, or to study the photochemistry of real plant emissions under polluted conditions without exposing the plants to pollutants. The main analytical tool is a proton-transfer-reaction time-of-flight mass spectrometer (PTR-TOF-MS) which allows online monitoring of biogenic emissions and chemical degradation products. The identification of BVOCs and their oxidation products is aided by cryogenic trapping and subsequent in situ gas chromatographic analysis. The data presented in the paper demonstrates the good performance of the setup.
Timkovsky, J., Gankema, P., Pierik, R., and Holzinger, R.: A dynamic plant chamber system with downstream reaction chamber to study the effects of pollution on biogenic emissions, Atmos. Meas. Tech. Discuss., 6, 9005-9036, doi:10.5194/amtd-6-9005-2013, 2013.