Download or read book Determination of Pu 239 240 Tissue Concentrations in Non occupationally Exposed Residents of New York City written by McDonald E. Wrenn and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Pu 239 240 Tissue Concentrations in Non occupationally Exposed Residents of New York City written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reports on the Pu-239, 240 concentrations in various tissues obtained from individuals residing in New York City. Twenty-six tissue samples have been analyzed for their Pu-239, 240 content, which include sections from the right lung, the liver, bone (4th and 5th vertebrae) and the kidney. The tissues were obtained at autopsy from a selected population not occupationally exposed to plutonium and whose deaths were the result of causes other than metabolic disorders. A detailed description is presented of the radiochemical procedures employed to separate Pu and electrochemically deposit plutonium isotopes prior to alpha spectrometry with Si surface-barrier detectors. Results of these measurements are given as activity per gram wet weight and activity per gram of calcium in the individual tissue. All results have been compared to similar measurements made at other laboratories and with estimates of concentration based on metabolic models. To date, the magnitudes and the distribution of the measured values are consistent with the values inferred from the ICRP lung model and measured concentrations of air.

Download or read book Low level Radiation written by United States. Department of Energy. Technical Information Center and published by . This book was released on 1978 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1977 with total page 900 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 1696 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for Plutonium written by and published by . This book was released on 2010 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1977 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicology Research Projects Directory written by and published by . This book was released on 1978 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feasibility of Determining Pu 239 Environmental and Occupational Levels in Urinary Excretion by Fission Track Analysis written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of bioassay programs for detecting human exposure to plutonium are currently playing a role that they were never intended or prepared to fulfill. With little resistance or support from the scientific community, the regulatory community established exposure limits for plutonium burdens based largely on imprecise inference of causes and effects; thus, to an extent, incomplete data and analysis formed the basis for most existing bioassay programs. At the time these early programs were developed, they were used only to determine the occupational exposure to radiation workers and populations unintentionally exposed to occupational levels during open air testing. The results from these programs are now used in litigation to determine cause, negligence and responsibility for health problems associated with the populations surrounding facilities that store, handle and process nuclear materials. As this role is beyond the scope of most bioassay programs' designs, concern for the use of existing bioassay programs in this manner is rising. It is imperative that defendable, scientifically-based, more sensitive techniques be researched and developed to measure the presence of Plutonium (Pu), which in turn can be used to establish and predict the health effects of a minimal Pu exposure. Currently, estimates to predict systemic deposition using urinalysis data are several times greater than the exposure levels measured by autopsy. The scientific research conducted in this study can serve to narrow this discrepancy and provide the regulatory community with a more reliable basis for establishing regulatory exposure limits and accurately predicting systemic deposition. Furthermore, this research and the continued development of more sophisticated detection techniques can serve to dispel general public concern over the possibility of radiation exposure from ongoing site remediation and closure efforts.

Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Plutonium Content of Tissues and Organs of Non occupationally Exposed Members of the General Public written by Mohammad Taghi Bahreyni-Toossi and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government Reports Annual Index written by and published by . This book was released on 1977 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Medicine Biology written by and published by . This book was released on 1983-03-08 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Toxicological Profile for Thorium written by and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sources Effects and Risks of Ionizing Radiation United Nations Scientific Committee on the Effects of Atomic Radiation UNSCEAR 2016 Report written by United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) and published by United Nations. This book was released on 2017-04-25 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report assesses the levels and effects of exposure to ionizing radiation. Scientific findings underpin radiation risk evaluation and international protection standards. This report comprises a report with two underpinning scientific annexes. The first annex recapitulates and clarifies the philosophy of science as well as the scientific knowledge for attributing observed health effects in individuals and populations to radiation exposure, and distinguishes between that and inferring risk to individuals and populations from an exposure. The second annex reviews the latest thinking and approaches to quantifying the uncertainties in assessments of risk from radiation exposure, and illustrates these approaches with application to examples that are highly pertinent to radiation protection.

Download or read book Government Reports Announcements Index written by and published by . This book was released on 1993 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Health Risks of Radon and Other Internally Deposited Alpha Emitters written by National Research Council and published by National Academies Press. This book was released on 1988-02-01 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.