Atmospheric Ammonia Fluxes (IMAGE) CNRS Caption This is a map of atmospheric ammonia fluxes based on 9 years of IASI data. It shows 242 hot spots, surrounded by black circles, and 178 wider emission zones, framed by white rectangles. Credit © Martin Van Damme and Lieven Clarisse / ULB Usage Restrictions None 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.