Ключевые слова: activity, air, chemical, chemicals, chimneys, combustion, dusk, emissions, energy, engineering, environment, equipment, facility, flames, fuel, gas, heat, hydrocarbons, industrial, industry, infrastructure, lighting, machinery, manufacturing, night, oil, operations, petrochemical, plant, pollution, processes, production, refinery, resources, safety, skyline, smoke, stack, supply, systems, technology, temperature, tower,