Pollution (IMAGE) University of Barcelona Caption Car exhaust air pollution in cities. Novosibirsk, winter 2021. Credit S. Dukhovnikov Usage Restrictions you may state that the image may only be used with appropriate caption or credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.