ANNA WRIGHT / SCIENCE PHOTO LIBRARY ANNA WRIGHT / SCIENCE PHOTO LIBRARY
Traffic pollution, computer artwork. Pedestrians being covered by exhaust fumes from a car. Motor vehicles are a major source of atmospheric pollutants, producing poisonous gases such as nitrogen oxides, carbon monoxide and ozone. They also emit unburnt hydrocarbons and microscopic particles of partially-burnt soot.
Model release not required. Property release not required.