Environmental Protection

In Publication 103, the Commission included a section on the protection of the environment, and indicated that it would be further developing its approach to this difficult subject by way of a set of Reference Animals and Plants (RAPs) as the basis for relating exposure to dose, and dose to radiation effects, for different types of animals and plants.

Subsequently, a set of 12 RAPs has been described in some detail, particularly with regard to estimation of the doses received by them, at a whole-body level, in relation to internal and external radionuclide concentrations; and what is known about the effects of radiation on such types of animals and plants. A set of dose conversion factors for all of the RAPs has been derived, and the resultant dose rates can be compared with evaluations of the effects of dose rates using derived consideration reference levels (DCRLs). Each DCRL constitutes a band of dose rates for each RAP within which there is likely to be some chance of the occurrence of deleterious effects. Site-specific data on Representative Organisms (i.e. organisms of specific interest for an assessment) can then be compared with such values and used as a basis for decision making.

Zusammenfassung
A title, in which, the commission includes a section on the protection of the environment, and indicated that it would be further developing its approach to this subject by way of a set of Reference Animals and Plants (RAPs) as the basis for relating exposure to dose, and dose to radiation effects, for different types of animals and plants.

Inhalt

PREFACE Executive Summary Glossary 1. INTRODUCTION 2. OVERVIEW OF APPROACHES USED TO MODEL TRANSFER OF RADIONUCLIDES IN THE ENVIRONMENT 3. DERIVATION OF CONCENTRATION RATIOS (CRS) FOR REFERENCE ANIMALS AND PLANTS 4. CONCENTRATION RATIOS FOR REFERENCE ANIMALS AND PLANTS ANNEX A: DETAILED STATISTICAL INFORMATION ON CONCENTRATION RATIOS FOR REFERENCE ANIMALS AND PLANTS ANNEX B: DERIVED CONCENTRATION RATIOS ANNEX C 1. INTERNAL BODY DISTRIBUTIONS OF SELECTED ELEMENTS IN THE REFERENCE ANIMAL AND PLAN 'FLATFISH' : DATA FOR THE EUROPEAN PLAICE : PLEURONECTES PLATESSA L. 2 ACCUMULATION OF SOME RADIONUCLIDES BY EGGS OF THE EUROPEAN PLAICE : PLEURONECTES PLATESSA L. 3 SOME BIOLOGICAL HALF-TIMES FOR THE EUROPEAN PLAICE : PLEURONECTES PLATESSA L.