SNAP plutonium-238 fallout at Ispra, Italy.
D000512:Alpha Particles; D007558:Italy; D008722:Methods; D011005:Plutonium; D011834:Radiation Monitoring; D011847:Radioactive Fallout; D012621:Seasons; D013057:Spectrum Analysis
D011847:Radioactive Fallout; D011005:Plutonium