Environmental survey at Lucas Heights Research Laboratories, 1991

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dc.contributor.authorHoffmann, ELen_AU
dc.contributor.authorLoosz, Ten_AU
dc.date.accessioned2007-11-22T04:23:11Zen_AU
dc.date.accessioned2010-04-30T04:35:05Zen_AU
dc.date.available2007-11-22T04:23:11Zen_AU
dc.date.available2010-04-30T04:35:05Zen_AU
dc.date.issued1994-05en_AU
dc.description.abstractIn common with many other nuclear facilities ANSTO undertakes an extensive program of meteorological measurements. The prime reason for such a program is to allow estimates to be made of the downwind concentration of any airborne pollutants particularly radionuclides released from the site through routine operations or under accident conditions. The data collection from this program provide the necessary input to the atmospheric dispersion model called ADDCOR (ANSTO 1989) which can be used to compute the effective dose to an individual due to the routine airborne or accidental release of radionuclides from the LHRL. None of the samples taken from possible human food chains in the vicinity of the Lucas Heights Research Laboratories contained radioactivity which could be attributed to the operation of the site. Discharges of airborne radioactive gases were within authorised limits when averaged over the year. The dose to the most sensitive members of the public from iodine-131 release was < 0.4 x 10 -3 mSv/year and the calculated dose from released noble gases to the most exposed individuals was less than 0.01 mSv/year. These figures represent less than one per cent of the most restrictive limits recommended by the National Health and Medical Research Council of Australia. The annual average liquid effluent discharge to the Water Board Sewer during 1991 was less than 29 per cent of the permitted level. For tritium the concentration was less than 2 per cent of the specified limit. The data presented in this report clearly shows that the environmental impact of operations at LHRL has been very low. The effective dose to residents living in the immediate neighbourhood of the reactor are very difficult to measure directly but calculated dose estimates are far lower than those due to natural background radiation and medical exposures.en_AU
dc.identifier.citationHoffmann, E. L. & Loosz. T. (1994). Environmental survey at Lucas Heights Research Laboratories, 1991. (ANSTO/E708). Lucas Heights, NSW: Australian Nuclear Science and Technology Organisation.en_AU
dc.identifier.govdoc489en_AU
dc.identifier.issn10307745en_AU
dc.identifier.otherANSTO-E-708en_AU
dc.identifier.placeofpublicationLucas Heights, New South Walesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/479en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectANSTOen_AU
dc.subjectReactor accidentsen_AU
dc.subjectRadioisotopesen_AU
dc.subjectRadioactive wastesen_AU
dc.titleEnvironmental survey at Lucas Heights Research Laboratories, 1991en_AU
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