Podrobný výpis o publikaci

Urban vegetation reduces the concentrations of aerosol partieles (PM10), nitrogen oxides (NOx) and ground-level ozone (O3). Concentrations of PM10, NOx, O3 and meteorological parameters were measured by sensors at 11 sites in the experimental locality Ostrava - Radvanice (10418 m2), which is strongly influenced by emissions from nearby industrial enterprises. The capture of PM10, NOx, O3 by existing and proposed vegetation (trees, grassland) in September and October 2019 was determined from the mode led deposition flux of these pollutants and from the measured and modeled leaf area indices of plants. Deposition fluxes of pollutants were modeled using resistance models from measured concentrations of these substances and meteorological parameters. A detailed dendrometric survey (height, mean crown projection) was performed and the species representation and health status of the existing vegetation was determined, and at the same time a new vegetation with maximum ability to capture pollutants was designed. The modeled pollutant removal by the existing and proposed vegetation were finally compared in a detailed 1 x 1 m network. The total removal of existing vegetation in the locality was 1.0 kg of PM10, 0.7 kg of NOx and 11.9 kg of O3, the total removal of the proposed vegetation was 1.8 kg of PM10, 0.8 kg of NOx and 14.7 kg of O3.