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Abstract

In this yearbook, there are reported the results of measurements of environmental radioactivity performed by the Radiation Protection Unit of the Joint Research Centre - Ispra Establishment, in charge for the site surveillance during 1997. These results also appear in the report EUR 18700 EN.

A brief introduction describes the type of samples, the frequency of sampling, the chemical treatment, the instruments used for the measurements and the statistics for analyzing data.

Data are given on the concentrations of some radionuclides (90Sr, 137Cs, Tritium and others) in precipitation, air, deposition, water, hay, milk, fish and radioactive effluents.

The presence of low contamination in the environment is still a consequence of the nuclear accident in Chernobyl and of the fall-out due to nuclear experiments in the atmosphere performed around 1960. The possible doses to the population are due to these causes, since the radioactive effluents discharged by the Establishment in the environment during 1997 are similar in quantity and isotopic composition to those of the previous years and imply a negligible effective dose equivalent.

Additional information

Authors: VOCINO V, Commissione Europea, Centro Comune di Ricerca, UnitÓ Radioprotezione, Ispra (IT);OSIMANI C, Commissione Europea, Centro Comune di Ricerca, UnitÓ Radioprotezione, Ispra (IT);D'ALBERTI F, Commissione Europea, Centro Comune di Ricerca, UnitÓ Radioprotezione, Ispra (IT);CAZZANIGAR, Commissione Europea, Centro Comune di Ricerca, UnitÓ Radioprotezione, Ispra (IT)
Bibliographic Reference: EUR 18732 IT (1999) 64 pp.
Availability: Available free of charge from Documentation Service JRC Ispra
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