Dirty Air (IMAGE) Columbia Climate School Caption Study author Dan Westervelt sets up an air-quality monitor in Kinshasa, capital of the Democratic Republic of the Congo. Credit Courtesy Dan Westervelt Usage Restrictions Credit must be given. 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.