[Role of volcanoes in forming a natural level of carcinogens].
D001580:Benzopyrenes; D002274:Carcinogens, Environmental; D055593:Geological Phenomena; D005844:Geology; D014586:USSR
D001580:Benzopyrenes; D002274:Carcinogens, Environmental
O roli vulkanov v formirovanii prirodnogo urovnia kantserogennykh veshchestv.