Strontium-90 and cesium-137 in North American milk.
The strontium-90 and cesium-137 concentrations in powdered milk in North America vary roughly with the specific activity of rain. The Sr(90)/Cs(137). ratios in over 800 powdered milk samples taken from 60 stations in North America from 1957-60 have a standard deviation of only 44 percent.
D000818:Animals; D002586:Cesium; D002588:Cesium Radioisotopes; D008892:Milk / Q000737:chemistry*; D009656:North America; D013324:Strontium; D013326:Strontium Radioisotopes; D014481:United States
D002588:Cesium Radioisotopes; D013326:Strontium Radioisotopes; D002586:Cesium; D013324:Strontium
CESIUM/radioactive; MILK/chemistry; STRONTIUM/radioactive