Radiological Conditions at Bikini Atoll PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Radiological Conditions at Bikini Atoll PDF full book. Access full book title Radiological Conditions at Bikini Atoll by International Atomic Energy Agency. Download full books in PDF and EPUB format.
Author: International Atomic Energy Agency Publisher: ISBN: Category : Business & Economics Languages : en Pages : 82
Book Description
The general concern about the state of the environment has focused the attention of many countries in recent years on the need to remediate areas affected by radioactive residues. The present assessment was requested by the Government of the Republic of the Marshall Islands, with the purpose of obtaining an independent view of the radiological situation on Bikini Atoll, the site of nuclear weapons testing in the period 1946 -1958. In particular, questions were posed about whether the former inhabitants should be permitted to return to their homes and about the nature and extent of any remedial actions which might be necessary. This report presents the results and conclusions of a meeting of international experts convened by the IAEA and chaired by K. Lokan, Australia, in December 1995 to review the available information on the subject.
Author: International Atomic Energy Agency Publisher: ISBN: Category : Business & Economics Languages : en Pages : 82
Book Description
The general concern about the state of the environment has focused the attention of many countries in recent years on the need to remediate areas affected by radioactive residues. The present assessment was requested by the Government of the Republic of the Marshall Islands, with the purpose of obtaining an independent view of the radiological situation on Bikini Atoll, the site of nuclear weapons testing in the period 1946 -1958. In particular, questions were posed about whether the former inhabitants should be permitted to return to their homes and about the nature and extent of any remedial actions which might be necessary. This report presents the results and conclusions of a meeting of international experts convened by the IAEA and chaired by K. Lokan, Australia, in December 1995 to review the available information on the subject.
Author: Harold L. Beck Publisher: ISBN: Category : Bikini Atoll (Marshall Islands). Languages : en Pages : 104
Book Description
The large amount and consistency of the data indicate that a reliable and comprehensive picture has been obtained of the external gamma radiation environment of the atoll.
Author: United States. Ad Hoc Committee to Evaluate the Radiological Hazards of Resettlement of the Bikini Atoll Publisher: ISBN: Category : Bikini Atoll (Marshall Islands) Languages : en Pages :
Author: Publisher: ISBN: Category : Languages : en Pages : 8
Book Description
The US conducted a nuclear testing program at Bikini and Enewetak Atolls in the Marshall Islands from 1946 through 1958. Several atolls, including Bikini, were contaminated as a result of the nuclear detonations. Since 1974 the authors have conducted an extensive research and monitoring program to determine the radiological conditions at the atolls, identify the critical radionuclides and pathways, estimate the radiological dose to current or resettling populations, and develop remedial measures to reduce the dose to atoll populations. This paper describes exposure pathways and radionuclides; composition of atoll soils; radionuclide transport and dose estimates; remedial measures; and reduction in dose from a combined option.
Author: Publisher: ISBN: Category : Languages : en Pages : 5
Book Description
The most widely accepted international guidelines for protection of the public from ionizing radiation and in circumstances related to intervention strategies to reduce exposures to preexisting conditions, such as those on Rongelap Island, come from the International Commission on Radiological Protection, the National Council on Radiation Protection and the International Atomic Energy Agency. By all internationally agreed scientific criteria, present radiological conditions on Rongelap Island are considered safe for permanent resettlement. Safe implies that no additional cancer deaths are expected among those living on Rongelap Island beyond the number that would occur in a community of the same population size, similar ages and mix of males and females, who do not experience exposure to residual fallout by living on the island. It is expected that the average dose received by Rongelap Island residents will fall well below the dose adopted by the Republic of the Marshall Islands Nuclear Claims Tribunal considered a ''safe'' or acceptable health risk. These conclusions are supported by environmental measurements and assessments performed by the Lawrence Livermore National Laboratory (LLNL) including the results of radiological surveillance of resettlement workers living on Rongelap Island for various lengths of time from 1999 through 2002, and independent studies conducted by Japanese scientists. Atmospheric testing of nuclear weapons was responsible for the widespread dispersion of radioactive fallout around the globe. Rongelap Island received higher levels of fallout from local or close-in fallout deposition from nuclear testing on Bikini Atoll. The main pathway for exposure to radiation from the bomb testing is ''internally'' through ingestion of radioactive cesium (cesium-137) taken up from the soil into locally grown foodstuffs. Resettlement workers living on Rongelap Island who ate local foods have volunteered to have the cesium-137 content of their bodies measured. The measuring device is called a whole body counter. A person relaxes in a chair for a few minutes while counts are taken using a detector a few inches away from the body. The whole body counting program on Rongelap Island was established under a cooperative agreement between the Rongelap Atoll Local Government (RALG), the Republic of the Marshall Islands and the U.S. Department of Energy (DOE). Local technicians from Rongelap continue to operate the facility under supervision of scientists from LLNL. Whole body counting data collected on resettlement workers during the initial phases of resettlement can tell us what exposure level a permanently resettled population could reasonably expect. The average internal dose to resettlement workers from cesium-137 is less than 1 mrem (0.01 mSv) per year. The highest individual dose observed over the last 3-years was less than 4 mrem (0.04 mSv) per year. The RALG-DOE resettlement support plan also calls for spreading potassium fertilizer across the agricultural areas to prevent the uptake of cesium-137 into plants. Fertilization will reduce the dietary intake of cesium-137 and reduce the dose to island residents. By 2004, over 70 percent of the cesium-137 deposition in soil from fallout in 1954 will have decayed to a non-radioactive substance. Over the next 10-20 years, more than one-half of the remaining cesium-137 in the soil and vegetation of the atoll islands will have disappeared by decay or washed out of the soil by rain. Removing some soil, applying crushed coral around living areas, and spreading potassium fertilizer across agricultural areas will reduce the level of radiation exposure in the resettled population to levels below those considered safe by the Nuclear Claims Tribunal and to levels well below those considered safe by the international scientific community.
Author: Ostenfosh Burnns Publisher: ISBN: 9781912483525 Category : Science Languages : en Pages : 150
Book Description
Nuclear test Environment. Marshall Islands: Bikini Atoll, Enewetak Atoll, Rongelap Atoll, Utrōk Atoll. The United States Department of Energy has recently implemented a series of strategic initiatives to address long-term radiological surveillance needs at former U.S. nuclear test sites in the Marshall Islands. The plan is to engage local atoll communities in developing shared responsibilities for implementing radiation surveillance monitoring programs for resettled and resettling populations in the northern Marshall Islands.
Author: Publisher: ISBN: Category : Languages : en Pages : 6
Book Description
The US conducted a nuclear testing program at Bikini and Enewetak Atolls in the Marshall Islands from 1946 through 1958. A total of 66 nuclear devices were tested--23 at Bikini Atoll (total yield of 77 megatons) and 43 at Enewetak Atoll (total yield of 33 megatons). This resulted in contamination of many of the islands at each atoll. The BRAVO test (yield 15 megatons) on March 1, 1954 contaminated several atolls to the east of Bikini Atoll some of which were inhabited. The author has conducted an experimental, monitoring, and dose assessment program at atolls in the northern Marshall Islands for the past 20 years. The goals have been to: (1) determine the radiological conditions at the atolls; (2) provide dose assessments for resettlement options and alternate living patterns; (3) develop and evaluate remedial measures to reduce the dose to people reinhabiting the atolls; and (4) discuss the results with each of the communities and the Republic of the Marshall Islands government officials to help them understand the data as a basis for resettlement decisions. The remaining radionuclides at the atolls that contribute any significant dose are 137Cs, 9°Sr, {sup 239+240}Pu, and 241Am.
Author: National Research Council Publisher: National Academies Press ISBN: 0309096103 Category : Science Languages : en Pages : 431
Book Description
The Radiation Exposure Compensation Act (RECA) was set up by Congress in 1990 to compensate people who have been diagnosed with specified cancers and chronic diseases that could have resulted from exposure to nuclear-weapons tests at various U.S. test sites. Eligible claimants include civilian onsite participants, downwinders who lived in areas currently designated by RECA, and uranium workers and ore transporters who meet specified residence or exposure criteria. The Health Resources and Services Administration (HRSA), which oversees the screening, education, and referral services program for RECA populations, asked the National Academies to review its program and assess whether new scientific information could be used to improve its program and determine if additional populations or geographic areas should be covered under RECA. The report recommends Congress should establish a new science-based process using a method called "probability of causation/assigned share" (PC/AS) to determine eligibility for compensation. Because fallout may have been higher for people outside RECA-designated areas, the new PC/AS process should apply to all residents of the continental US, Alaska, Hawaii, and overseas US territories who have been diagnosed with specific RECA-compensable diseases and who may have been exposed, even in utero, to radiation from U.S. nuclear-weapons testing fallout. However, because the risks of radiation-induced disease are generally low at the exposure levels of concern in RECA populations, in most cases it is unlikely that exposure to radioactive fallout was a substantial contributing cause of cancer.
Author: International Atomic Energy Agency
Author: International Atomic Energy Agency
Author: Harold L. Beck
Author: W. L. Robison
Author: University of Washington. Applied Fisheries Laboratory
Author: United States. Ad Hoc Committee to Evaluate the Radiological Hazards of Resettlement of the Bikini Atoll
Author: 
Author: 
Author: Ostenfosh Burnns
Author: 
Author: National Research Council