Leipzig/Halle Airport in Germany (IMAGE) Friedrich-Schiller-Universitaet Jena Caption Airports use de-icing agents during the winter. These chemicals have a negative impact on groundwater quality, according to a new study of geoscientists from the Friedrich Schiller University Jena. Credit Jan-Peter Kasper 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.