Pollution Removal Tool (IMAGE) UK Centre for Ecology & Hydrology Caption The online tool can calculate how much particulate matter will be removed from a local area by adding trees, as well as the public health cost saving Credit CEH 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.