Poultry Farm Emissions (image) American Chemical Society Caption Scientists report that planting three rows of trees around poultry farms can reduce emissions of dust, ammonia and odor. Credit Credit: George W. Malone, University of Delaware. Usage Restrictions None 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.