Stream (IMAGE) American Society of Agronomy Caption The research team monitored streams for atrazine and DEA levels. The pesticide atrazine breaks down into DEA through chemical processes. Credit Rachel Leege Usage Restrictions For use with this story only. 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.