Ключевые слова: biomass, chimney, clouds, condensation, danger, dangerous, drying, ecology, emission, engineering, enterprise, environment, environmental, factory, firewood, flue, forest, harmful emissions, hazardous, industrial, industry, logging, lumber, manufacture, mdf, mill, pipes, plant, pollute, pollution, power, processing, railway wagons, raw, recycled, reflection, resource, river, sawmill, sky, smog, smoke, stack, timber, trees, warehouse, waste, wood, wooden, woodworking,