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HomeRadioactivity measurements in Europe after the Chernobyl accident. Part II, Fallout and deposition
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This report contains a set of radioactivity measurements of fallout and deposition performed in various Countries of Europe after the accident of Chernobyl. The measurements, concernine) the Caesium isotopes only, have been throroughly checked and validated. The contribution to cumulative deposition of bomb fallout has been also evaluated and subtracted from the total soil contamination, either by the single laboratory supplying the original data or by the authors of this report. The collection of deposition measurements, presented in this report and included in the floppy disk in the back cover has been put together as part of the REM programme (ßadioactivity Environmental Monitoring). This follows the compilation of air measurements (part 1) published previously (Raes, 1989). The objective of these compilations is to promote the integration of Chernobyl data on a European-wide basis to make them widely available in a coherent form for scientific study. Deposition measurements come in many forms (fallout, rain, soil) but all reflect the phenomena by which radionuclides in the air reach the surface. Depending on the manner of sampling, measurements can reflect integral values (e.g. from surface soil) or some fraction of the deposition (e.g. daily deposition using fallout or rain collectors). The latter can also be expressed as wet or dry according to the sampling apparatus used. The original sources of information from which this compilation was made vary widely : some of the data were obtained directly from floppy disks or tapes; others were copied manually from tables found in reports or papers in the scientific literature. All data were thoroughly checked before loading into the bank. The sets of measurements presented in this report were selected from this large patrimony of data in the REM data bank. Specific criteria were used to make this selection. Overall, only those data were used which had fully defined records. For daily deposition data actually sampled over 24 hourly periods were selected. With cumulative deposition care was taken to select data which covered the whole period of deposition marked by the passage of the cloud. The resulting data are presented on a unified format and as far as possible keep to individual measured values. In this manner the greatest flexibility is given to the user of this data. The collection of deposition measurements, presented in this report and included in the floppy disk in the back cover has been put together as part of the REM programme (ßadioactivity Environmental Monitoring). This follows the compilation of air measurements (part 1) published previously (Raes, 1989). The objective of these compilations is to promote the integration of Chernobyl data on a European-wide basis to make them widely available in a coherent form for scientific study. Deposition measurements come in many forms (fallout, rain, soil) but all reflect the phenomena by which radionuclides in the air reach the surface. Depending on the manner of sampling, measurements can reflect integral values (e.g. from surface soil) or some fraction of the deposition (e.g. daily deposition using fallout or rain collectors). The latter can also be expressed as wet or dry according to the sampling apparatus used.
- Published:
- Corporate author(s): Directorate-General for Research and Innovation (European Commission) , Joint Research Centre – Ispra (Joint Research Centre)
- Personal author(s): Holder, G ; Raes, F ; Graziani, G ; Stanners, D ; Pierce, D
- Subject: environmental statistics , nuclear accident , nuclear power station , nuclear safety , radiation exposure , radioactive effluent , radioactive pollution , Ukraine
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| ISSN 1018-5593 | ISBN | DOI | Catalogue number CD-NA-12-800-EN-C |
- Released on EU Publications:
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