Since April 29th 1986 air radioactivity measurements at ground level in relation to the Chernobyl accident, were performed in our Institute by high resolution gamma-ray spectrometry. Airborne dust samples were collected on 0.45 pm filters, with controlled flow samplers, on a 4 h time basis until May 1st. Afterwards, samples were collected on a daily basis. The maximum air radioactivity was observed on May 1st when the following average values (mBq mp3) were detected: 131I = 15 577; 132I (132Te) = 10 550; 103Ru = 4070; 137Cs = 1783; 134Cs = 929; 106Ru=1100; 99mTc=969; 140Ba=944; 140La = 548.
The deposition of chernobyl fallout in North-east Italy
Degetto S.;Tositti L.;
1987
Abstract
Since April 29th 1986 air radioactivity measurements at ground level in relation to the Chernobyl accident, were performed in our Institute by high resolution gamma-ray spectrometry. Airborne dust samples were collected on 0.45 pm filters, with controlled flow samplers, on a 4 h time basis until May 1st. Afterwards, samples were collected on a daily basis. The maximum air radioactivity was observed on May 1st when the following average values (mBq mp3) were detected: 131I = 15 577; 132I (132Te) = 10 550; 103Ru = 4070; 137Cs = 1783; 134Cs = 929; 106Ru=1100; 99mTc=969; 140Ba=944; 140La = 548.File in questo prodotto:
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