Radiation data and reports. Surface air sampling program--80th meridian network. January-December 1971.
D000398:Air Pollution, Radioactive / Q000032:analysis*; D002564:Cerium Isotopes / Q000032:analysis; D002587:Cesium Isotopes / Q000032:analysis; D009656:North America; D011005:Plutonium / Q000032:analysis; D011834:Radiation Monitoring; D011868:Radioisotopes / Q000032:analysis; D013020:South America; D013326:Strontium Radioisotopes / Q000032:analysis; D015040:Zirconium / Q000032:analysis
D002564:Cerium Isotopes; D002587:Cesium Isotopes; D011868:Radioisotopes; D013326:Strontium Radioisotopes; D011005:Plutonium; D015040:Zirconium