The article presents the results of measurements of the atmospheric quality in “Kolomna” municipal solid waste (MSW) landfill, the visual assessment of plant life and analysis of morphological parameters of leaves, which grow in experimental and control areas, and the 3D concentration spreading of landfill gas emission. The main idea is to identify the influence of landfill gas emission and morphological parameters of leaves, which grow near the landfill. By factor analysis, we proved the factor value of landfill gas emissions on the morphological parameters of leaves and revealed the main factors which could change the morphological parameters of leaves in experimental and control areas. © Kaunas University of Technology.