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137Cs Chernobyl fallout in Greece and its associated radiological impact






Environment International 22(SUPPL 1): S369-S373

137Cs Chernobyl fallout in Greece and its associated radiological impact

Right after the Chernobyl reactor accident, a systematic soil sampling and analysis programme was undertaken to detect and quantitatively analyse the long-lived radionuclides in the Chernobyl fallout in Greece. In the frame of this programme, 1242 soil samples of 1-cm thick surface soil were collected over Greece during the period May - November 1986. The samples were counted and analysed using Ge-detector setups for fission products from the Chernobyl fallout, which led to the mapping of 137Cs deposition in the form of a five-class histogram, extending between 0- 150 kBq m-2, with boundaries defined by isolines of 5, 15, 35, 65, and 150 kBq m-2. To investigate the radiological impact of the 137Cs fallout on the Greek population, the computer code PABLM was run using as input the above isoline data. According to the results obtained, the total body collective effective dose commitment of the Greek population was estimated as 340 manSv over the first year after the accident and 8800 manSv over a period of 40 y. Concerning the 6000 inhabitants within the 65 kBqm-2 isoline, the results were 2 manSv over the first year after the accident and 55 manSv over a period of 40 y. The above radiological impact was compared to that due to fly ash releases from the Ptolemais Lignite Power Plants in northern Greece.

Accession: 002734339

DOI: 10.1016/s0160-4120(96)00133-x

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Related references

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