A. Szulecka, M. Bogacki
AGH University of Science and Technology, Department of Environmental Management and Protection, Kraków, PL
INITIAL ASSESSMENT OF BIOGENIC VOLATILE ORGANIC COMPOUNDS EMISSION RATES FROM THE AREA OF POLAND. CASE STUDY: JULY 2015
The emission of volatile organic compounds (VOCs) from natural sources, including terrestrial plants, constitutes an important contribution to the global emissions budget of these compounds in the air. It is a component of the global carbon cycle in nature. Volatile organic compounds released from plants (BVOCs) are a response to a number of stress factors and result from plant interactions with surrounding environment. Emitted BVOCs affect atmospheric chemistry, including the formation of secondary pollutants such as ozone. The paper presents preliminary results of the emission inventory for two basic groups of BVOCs: isoprene and terpenes, emitted from natural sources from the area of Poland in July 2015. BVOCs emission was determined using computer simulations performed using MEGAN v2.1 (Model of Emissions of Gases and Aerosols from Nature) driven with 1-h meteorological outputs generated in the WRF v3.8 model (Weather Research and Forecasting). The estimation of volatile organic compounds emission from vegetation at spatial resolution of 4x4 km and with 1 hour time step was conducted based on 16 global PFT (Plant Functional Types) distribution. Total emission rates of analysed compounds, their spatial distribution and temporal variability as a function of actual atmospheric conditions (including temperature and insolation) were analysed. Conducted computer simulations are initial stage of the research on the emission of VOC in the area of Poland from vegetation, especially from forests.
Keywords: MEGAN, WRF, biogenic emission, isoprene, terpenes, volatile organic compounds