Lab (image) American Society of Agronomy Share Print E-Mail Caption Technician Renee Russell analyzes the pesticide content of water samples collected from rice fields using a gas chromatograph. Credit Peggy Greb. Usage Restrictions Please use with story only Share Print E-Mail 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.