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dc.contributor.authorKwakman PJM
dc.contributor.authorOverwater RMW
dc.date.accessioned2017-02-20T08:04:35
dc.date.issued2015-06-08
dc.identifier2015-0011
dc.description.abstractHet RIVM controleert maximaal achtmaal per jaar de metingen van COVRA. Het gaat hierbij om lozingen van radioactiviteit in water en lucht. De contraexpertise onderbouwt de betrouwbaarheid van de analyses die COVRA uitvoert. De overeenstemming in de gammaspectrometrische resultaten en de resultaten van de tritiumbepaling was goed. Bij de totaal-alfa, totaal-beta en 14C-resultaten in afvalwater was de overeenstemming redelijk. Gezien het feit dat RIVM en COVRA verschillende meetprincipes toepassen komen de totaal bèta meetwaarden van RIVM en de rest-bèta meetwaarden van COVRA in 2013 redelijk overeen. Bij de 14C bepaling was er één afwijkend resultaat waar de oorzaak niet duidelijk is. De overeenstemming tussen RIVM en COVRA betreffende de ventilatieluchtresultaten van AVG en HABOG is eveneens overwegend goed. Het RIVM heeft in 2013 vijf afvalwatermonsters en acht monsters van ventilatielucht van zowel het afvalverwerkingsgebouw als het HABOG geanalyseerd, die verspreid over het jaar door COVRA zijn genomen. Opdrachtgever is de Kernfysische Dienst van de Inspectie Leefomgeving en Transport, Ministerie van Infrastructuur en Milieu.
dc.description.abstractWithin the framework of a monitoring programme, RIVM measures the release of radioactivity into water and ventilation air of COVRA N.V. Measurements are carried out up to eight times per year. This form of counter-expertise is aimed at verifying and supporting the reliability of the analyses carried out by COVRA. The two different sets of waste water analyses are generally in agreement, as is also the case in 2013 for gamma-emitters and tritium. For gross alpha, gross beta and 14C the agreement is reasonable. Considering the fact that RIVM and COVRA apply different measuring principles the agreement in the gross beta results in waste water is good. For one of the 14C determinations the agreement was bad without a clear explanation. The results for gross alpha and gross beta, 3H and 14C obtained by RIVM and COVRA in ventilation air samples of the waste treatment building are generally in good agreement The agreement was good in the analytical results found by RIVM and COVRA in ventilation air from the high activity waste storage building. RIVM analyzed five waste water samples and eight samples of ventilation air from both the waste treatment building and the high activity waste storage building. These samples were taken by COVRA at various time points dispersed throughout 2013. The analyses were carried out on behalf of the Department of Nuclear Safety, Security and Safeguards of the Human Environment and Transport Inspectorate, Ministry of Infrastructure and Environment.
dc.description.sponsorshipInspectie Leefomgeving en Transport
dc.formatapplication/pdf
dc.format.extent42 p
dc.format.extent327 kb
dc.language.isonl
dc.publisherRijksinstituut voor Volksgezondheid en Milieu RIVM
dc.relation.ispartofseriesRIVM briefrapport 2015-0011
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/2015-0011.html
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/2015-0011.pdf
dc.subjectCOVRAnl
dc.subjectradioactiviteitnl
dc.subjectlozingennl
dc.subjectafvalwaternl
dc.subjectventilatieluchtnl
dc.subjectCOVRAen
dc.subjectradioactivityen
dc.subjectdischargesen
dc.subjectwaste wateren
dc.subjectventilation airen
dc.titleContra-expertise op bepalingen van radioactiviteit van afvalwater en ventilatielucht van COVRA N.V. : Periode 2013nl
dc.title.alternativeContra-expertise on the determination of radioactivity of waste water and ventilation air of COVRA N.V. : Period 2013en
dc.typeBriefrapport
dc.contributor.departmentM&M
dc.date.updated2017-02-20T07:04:35Z
dc.contributor.divisionM&V
refterms.dateFOA2018-12-13T10:46:30Z
html.description.abstractHet RIVM controleert maximaal achtmaal per jaar de metingen van COVRA. Het gaat hierbij om lozingen van radioactiviteit in water en lucht. De contraexpertise onderbouwt de betrouwbaarheid van de analyses die COVRA uitvoert.<br> <br>De overeenstemming in de gammaspectrometrische resultaten en de resultaten van de tritiumbepaling was goed. Bij de totaal-alfa, totaal-beta en 14C-resultaten in afvalwater was de overeenstemming redelijk. Gezien het feit dat RIVM en COVRA verschillende meetprincipes toepassen komen de totaal bèta meetwaarden van RIVM en de rest-bèta meetwaarden van COVRA in 2013 redelijk overeen. Bij de 14C bepaling was er één afwijkend resultaat waar de oorzaak niet duidelijk is. De overeenstemming tussen RIVM en COVRA betreffende de ventilatieluchtresultaten van AVG en HABOG is eveneens overwegend goed.<br> <br>Het RIVM heeft in 2013 vijf afvalwatermonsters en acht monsters van ventilatielucht van zowel het afvalverwerkingsgebouw als het HABOG geanalyseerd, die verspreid over het jaar door COVRA zijn genomen. Opdrachtgever is de Kernfysische Dienst van de Inspectie Leefomgeving en Transport, Ministerie van Infrastructuur en Milieu.<br>
html.description.abstractWithin the framework of a monitoring programme, RIVM measures the release of radioactivity into water and ventilation air of COVRA N.V. Measurements are carried out up to eight times per year. This form of counter-expertise is aimed at verifying and supporting the reliability of the analyses carried out by COVRA. The two different sets of waste water analyses are generally in agreement, as is also the case in 2013 for gamma-emitters and tritium. For gross alpha, gross beta and 14C the agreement is reasonable. Considering the fact that RIVM and COVRA apply different measuring principles the agreement in the gross beta results in waste water is good. For one of the 14C determinations the agreement was bad without a clear explanation.<br> <br>The results for gross alpha and gross beta, 3H and 14C obtained by RIVM and COVRA in ventilation air samples of the waste treatment building are generally in good agreement The agreement was good in the analytical results found by RIVM and COVRA in ventilation air from the high activity waste storage building.<br> <br>RIVM analyzed five waste water samples and eight samples of ventilation air from both the waste treatment building and the high activity waste storage building. These samples were taken by COVRA at various time points dispersed throughout 2013. The analyses were carried out on behalf of the Department of Nuclear Safety, Security and Safeguards of the Human Environment and Transport Inspectorate, Ministry of Infrastructure and Environment.<br>


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