60Co in air.
D000398:Air Pollution, Radioactive / Q000032:analysis*; D003037:Cobalt Radioisotopes / Q000032:analysis*; D007558:Italy; D011834:Radiation Monitoring / Q000295:instrumentation; D011847:Radioactive Fallout; D011891:Rain
D003037:Cobalt Radioisotopes; D011847:Radioactive Fallout