Results of measurements of the radioactive contamination of the biosphere in the Netherlands, compiled by the CCRX 1982

In this report results are given of measurements of the radioactive contamination of the biosphere in the Netherlands. These measurements are coordinated by the Coordinating Committee for the Monitoring of Radioactive and Xenobiotic Substances (CCRX). The measurements are divided into measurements for the National Measurement Programme and Additional Measurements. The former include the analyses considered essential for an efficacious determination of the radioactivity of the biosphere. The measurements are performed in air, surface water, milk and precipitation. The analysis of other food products is thought to be no longer necessary. Finally, also samples of milk and grass from the surroundings of nuclear reactors have been analysed. The second category of measurements comprises orientating research for specific radionuclides which may be present in some samples and other investigations which may yield useful information. Results of determinations of radionuclides in water from the North Sea and in some fishery products from the Dutch waters are given in view of the potential which some marine organisms have to concentrate fission products and especially activated corrosion products from nuclear installations. As 'additional' the results of measurements by the licenseees of the Dutch nuclear installations of samples from the surroundings of their plants are also given. (orig.)