title: EPA scraps radionuclide regulations.
mesh_terms: D004781:Environmental Exposure; D006077:Government Agencies; D006801:Humans; D007883:Legislation, Medical; D009381:Neoplasms, Radiation-Induced / Q000517:prevention & control; D011868:Radioisotopes / Q000009:adverse effects*; D014481:United States; D014484:United States Environmental Protection Agency
chemical_list: D011868:Radioisotopes