Health Risks of Radon and Other Internally Deposited Alpha-Emitters


Book Description

This book describes hazards from radon progeny and other alpha-emitters that humans may inhale or ingest from their environment. In their analysis, the authors summarize in one document clinical and epidemiological evidence, the results of animal studies, research on alpha-particle damage at the cellular level, metabolic pathways for internal alpha-emitters, dosimetry and microdosimetry of radionuclides deposited in specific tissues, and the chemical toxicity of some low-specific-activity alpha-emitters. Techniques for estimating the risks to humans posed by radon and other internally deposited alpha-emitters are offered, along with a discussion of formulas, models, methods, and the level of uncertainty inherent in the risk estimates.




The Environmental Behaviour of Polonium


Book Description

Polonium-210 is an alpha emitting radionuclide with no radioactive progeny and produces only very-low-intensity gamma rays at very low abundance. This means doses largely arise from internal exposure. In addition to the relatively high ingestion does coefficient of 210Po, radionuclide transfer in the environment results in high activity concentrations in certain foods. This publication focuses on radionuclide transfers in terrestrial, freshwater and marine environments, and provides information on key transfer processes, concepts and models--back cover.




ERDA.


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Radioecological Concentration Processes


Book Description

Radioecological Concentration Processes present the overall model for problems of environmental contamination in terms of system analysis. This book discusses the major investigational approaches to study of environmental contamination with radioactivity. Organized into 90 chapters, this book starts with an overview of the results of the experimental investigations into the distribution of strontium in soils and the uptake of this nuclide by plants. This text then presents the comparison of the distribution character in different soil types, which shows clearly that ploughed soils differ from virgin soils by a more uniform and similar character of radioisotope distribution in them. Other chapters consider the migration of 90Sr in the mostly podzolic and water-logged soils of moderately northern latitudes of Russia. The final chapter deals with the experiments with the shore crab Carcinus maenas, which shows that the crab is able to regulate the zinc content of its body against changes in the zinc content of food or of surrounding water. Biochemists will find this book useful.
















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