Cadmium Deposition (image) USDA Forest Service - Pacific Northwest Research Station Share Print E-Mail Caption A US Forest Service Pacific Northwest Research Station-led moss study yielded a fine-scale map of cadmium deposition across the city of Portland. Credit Saran Jovan, U.S. Forest Service Usage Restrictions Include credit. 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.