Wildfires in Chornobyl Exclusion zone (IMAGE) University of Tsukuba Caption Production of charred residues by the wildfires promotes the leaching of radionuclides, and contributes to increased radionuclide concentrations in river water. Credit Denis Vishnevskiy Usage Restrictions Unauthorized use is prohibited. License Original 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.