Ключевые слова: air, auto, automobile, car, carbon, chrome, close, closeup, co2, combustion, concentration, detail, dirty, double, dual, eco pollution, ecology, emission, engine, environment, environmental, exhaust, fuel, fumes, gas, gasoline, global warming, hydrocarbon, industry, modern, monoxide, motor, muffler, parts, photo, picture, pipe, pollution, power, road, safe, smoke, steam, tailpipe, traffic, transport, transportation, truck, unhealthy, vehicle,