Ключевые слова: aerial, air, aircraft, bacterium, biology, biomass, circle, cleaning, construction, dirty, ecology, environment, europe, facility, factory, flight, flow, fly, garbage, industrial, industry, machine, manufacture, manufacturing, plant, poland, power, process, processing, production, purification, purified, purity, recycle, recycled, recycling, reduce, removal, road, sewage, sludge, smell, station, tank, treatment, tree, unpleasant, urban, view, waste,