NKS Programmet 1998-2001 Årsrapport 2000

DK0100067 Nordisk kernesikkerhedsforskning Norrænar kjamoryggisrannsoknir Pohjoisrnainenydinturvallisuustutkimus Nordisk kjemesikkerhetsforskning Nordisk kårnsakerhetsforskning Nordic nuclear safety research NKS-22 ISBN 87-7893-072-3 NKS Programmet 1998-2001 Årsrapport 2000 Torkel Bennerstedt (ed.) NKS 3 2/42 Marts 2001

Abstract This annual report summarizes - without going into technical, administrative or financial detail - the NKS work carried out in the year 2000. A comprehensive list of ongoing projects and subprojects is included. The report gives an overview of the status of the six projects as compared to adopted plans, project criteria and budget constraints. For each project, participating organizations, published articles and reports, important seminars, meetings etc. and contracts are listed. The work of the NKS Secretariat is briefly summarized. Key words Risk Assessment; Reactor Safety; Radioactive Waste; Emergency Preparedness; Radioecology; Environmental Consequences; Nuclear Threats NKS-22 ISBN 87-7893-072-3 Danka Services International, DSI, 2001 The report can be obtained from NKS Secretariat P.O. Box 30 DK-4000 Roskilde Denmark Phone +45 4677 4045 Fax +45 4677 4046 http://www.nks.org e-mail: annette.lemmens@catscience.dk

Nordisk kernesikkerhedsforskning Norrænar kjarnoryggisrannsoknir Pohjoismainen ydinturvallisuustutkimus Nordisk kjernesikkerhetsforskning Nordisk kårnsåkerhetsforskning Nordic nuclear safety research NKS-22 ISBN 87-7893-072-3 NKS Programmet 1998-2001 Årsrapport 2000 Torkel Bennerstedt (ed.) NKS Marts 2001

Indholdsfortegnelse Side Indledning 3 Projekt och delprojekt inom NKS-programmet 1998-2001 5 Projects and Subprojcts Within the NKS Program 1998-2001 6 SOS-1, Riskvardering och strategier for såkerhet 7 SOS-2, Reaktorsakerhet 12 SOS-3, Radioaktivt avfall 17 BOK-1, Nukleart beredskab 22 BOK-2, Radiologiske og miljømæssige konsekvenser 27 SBA-1, Trusselbildet fra nukleære installasjoner i Nordens nærområder.. 32 SEK, Sekretariatet 34 Styrelsens sammansattning 2000 36 NKS'finansiering 2000 36 Økonomisk Oversigt for perioden 1.2.00-26.01.01 37 Reservationer 38 Fortegnelse over samtlige hidtil (tom 2000) publiceret NKS-rapporter fra perioden 1998-2001 39 Fortegnelse over NKS-dokumenter 2000 40 Viktigare kalendariske hållpunkter 41 Seminarier NKS sommaren 2000 - våren 2002 43

Inledning Detta ar årsrapporten for NKS-verksamheten 2000. Det ar - enligt tidigare styrelsebeslut - en relativt oversiktlig årsrapport, utan tekniska och ekonomiska detaljuppgifter. Avsikten år snarare att ge en låttoverskådlig presentation av resultat och ekonomiskt utfall i forhållande till godkånda projektplaner och beviljade budgetramar. (Se rapport NKS-5, Planer for NKS-programmet 1998-2001, daterad 1999-08-02.) Vidare har viktigare rapporter, avtal, seminarier, arbetsmoten etc fortecknats. Deltagande organisationer och personer omnamns, och en uppskattning gors for varje projekt av de totala nationella bidragen (utover NKS' egna medel) till forskningsarbetet. NKS-arbetet fmansieras till storsta delen av foljande konsortialparter: Beredskabsstyrelsen i Danmark Handels- och industriministeriet i Finland Geislavarnir rikisins i Island Statens strålevern i Norge Statens kårrikraftinspektion och Statens strålskyddsinstitut i Sverige NKS vill i detta sammanhang framfora sitt varma tack till projektledarna och ovriga personer och organisationer som genom sina arbetsinsatser och stod i många andra former gjort det framgångsrika NKS-arbetet under 2000 mojligt, Detta galler inte minst NKS' tillaggsfinansiårer: Fortum och TVO i Finland; Svensk kåmbrånslehantering (SKB), Vattenfall AB, Sydkraft AB samt Kårnkraftsakerhet och utbildning AB (KSU) i Sverige. Den totala NKS-finansieringen (bidrag från konsortialparter och tillaggsfinansiårer) var cirka DKK 9 miljoner under år 2000. De uppskattade nationella bidragen (i form av odebiterade arbetsinsatser, reskostnader etc) under samma år var cirka DKK 11 miljoner. I rapportens borjan finns forteckningar av projekten och delprojekten, dels en på danska, norska och svenska, dels en på engelska. Darefter foljer projektledarnas rapporter for 2000. Avslutningsvis foljer en kort resumé av sekretariatets verksamhet och en ekonomisk oversikt. Sekretariatsavsnittet innehåller åven listor over NKS-rapporter som utgivits hittilis under fyraårsperioden och NKS-numrerade dokument som givits ut under 2000, en forteckning over viktigare kalendariska hållpunkter under slutfasen av det pågående programmet samt en forteckning over den avslutande seminarieverksamheten under denna fyraårsperiod. Programmet 1998-2001 kommer att avslutas med ett seminarium i Danmark i mars 2002, då åven det kommande programmet (med start 2002) kommer att presenteras och diskuteras. Mer information om detta slut/startseminarium kommer att såndas ut når detaljerna om tid, plats och innehåll blir klara. Under året har informationsprojektet (SBA-2) lagts ner, eftersom de fiesta av de involverade i projektet, inklusive projektledaren, bytt arbetsplats eller fått nya arbetsuppgifter. Ett forsok att genomfora en kort variant av SBA-2 gjordes, men det gick inte att få tillråcklig nordisk uppslutning kring det bantade projektet. Vidare har under året en deltidsevaluering av verksamheten gjorts, i samband med ett statusseminarium på VTT/Innopoli den 7 november 2000. Statusrapporterna och

deltidsevalueringen finns i dokumentet NKS(00)20. Arbetet med den slutliga utvarderingen av hela programmet 1998-2001 har också borjat. Raimo Mustonen (STUK) och Gustaf Lowenhielm (SKI) har utsetts att granska det teknisk/vetenskapliga arbetet. Deras slutrapport ska presenteras for styrelsen i november 2001. Martin Høiby (Strålevernet) har utsetts att utvardera organisation och administration av verksamheten. Hans rapport ska presenteras vid styrelsemotet i Island 21-22 maj 2001. Årsrapporten diskuterades och godkandes (med vissa andringar) av konsortialpartema vid deras extra mote på SKI i Stockholm den 7-8 mars 2001. Mer information om NKS finns på vår hemsida, www.nks.org, dar man aven kan bestålla rapporter och andra dokument. Torkel Bennerstedt Exekutivsekreterare

Projekt och delprojekt inom NKS-programmet 1998-2001 SOS-l SOS-2 SOS-3 BOK-1 BOK-2 SBA-1 Risk vardering och strategier for sakerhet Projektledare: Kjell Andersson, Karinta-Konsult SOS-1.1 Riskvardering SOS -1.2 S akerhets vardering - sakerhetsanalys SOS -1.3 Såkerhetsvardering - innehåll och strategi Reaktorsakerhet Projektledare: Kaisa Simola, VTT Automation SOS-2.1 Sakerhetsutveckling SOS-2.2 Kvalitetssåkring och underhall SOS -2.3 Svåra havener Radioaktivt avfall Projektledare: Karin Brodén, Studsvik RadWaste SOS -3.1 Miljokonsekvensbeskrivning SOS -3.2 Erfarenheter av lagring och deponering SOS-3.3 Kontaminationsnivåer i metaller Nuklleart beredskab Projektledare: Bent Lauritzen, Risø BOK-1.1 Laboratoriemålinger og kvalitetssikring BOK-1.2 Mobile målinger og målestrategier BOK-1.3 Feltmålinger og data-assimilering BOK-1.4 Tiltag indenfor landbrug og skovbrug BOK-1.5 Nukleare målesystemer i de nordiske lande og i Østersøområdet BOK-1.6 Nukleare øvelser Radiologiske og miljømæssige konsekvenser Projektledare: Sigur5ur Emil Pålsson, Geislavarnir rikisins BOK-2.1 Vigtige nordiske fødekæder BOK-2.1.1 Radioøkologisk følsomhed BOK-2.1.2 Interne strålingsdoser BOK-2.2 Radioaktive sporstoffer i nordiske havområder BOK-2.2.1 Transport af havvand BOK-2.2.2 Biologiske og biogeokemiske processer Trusselbildet fra nukleære installasjoner i Nordens nærområder Projektledare: Inger Margrethe H. Eikelmann, Statens strålevern SBA-1.A Evaluering av trusslene fra nukleære installasjoner i Nordens nærområder SB A-1. A. 1 Trusselen fra kjernekraftverk SBA-1.A.2 Trusselen fra skipsreaktorer SBA-1.A.3 Trusselen ved lagring og håndtering av brukt brensel og radioaktivt avfall SBA-1.B Kunnskapsbase over nukleære trussler i Nordens nærområder SBA-1.B. 1 Litteraturdatabase over nukleære trussler i Nordens nærområder SBA-1.B.2 Workshop om nukleære trussler i Nordens nærområder SBA-1.B.3 Web-basert formidling av kunnskaps-basen SBA-1.B.4 Initiere komplementerende studier

Projects and Subprojects within the NKS Program 1998-2001 SOS-l SOS-2 SOS-3 BOK-1 BOK-2 SBA-1 Risk Assessment and Strategies for Safety Project leader: Kjell Andersson, Karinta-Konsult SOS-l.1 Risk Assessment SOS-1.2 Safety Assessment - Safety Analysis SOS-l.3 Strategies for Safety Assessment Reactor Safety Project leader: Kaisa Simola, VTT Automation SOS-2.1 Safety Development SOS-2.2 Management of Plant Maintenance and Renewal SOS-2.3 Severe Accidents Radioactive Waste Project leader: Karin Brodén, Studsvik RadWaste SOS-3.1 Environmental Impact Assessment SOS-3.2 Experience of Storage and Disposal SOS-3.3 Contamination Levels in Metals Nuclear Emergency Preparedness Project leader: Bent Lauritzen, Risø BOK-1.1 Laboratory Measurements and Quality Assurance BOK-1.2 Mobile Measurements and Measurement Strategies BOK-1.3 Field Measurements and Data Assimilation BOK-1.4 Countermeasures in Agriculture and Forestry BOK-1.5 Emergency Monitoring in the Nordic and Baltic Sea Countries BOK-1.6 Nuclear Exerci ses Radiological and Environmental Consequences Project leader: Siguråur Emil Pålsson, Icelandic Radiation Protection Institute BOK-2.1 Important Nordic Food Chains BOK-2.1.1 Radioecological Vulnerability BOK-2.1.2 Internal Doses BOK-2.2 Radioactive Tracers in Nordic Sea Areas BOK-2.2.1 Sea Water Transport BOK-2.2.2 Biological and Biogeochemical Processes Nuclear Threats in Nordic Surroundings Project leader: Inger Margrethe H. Eikelmann, Norwegian Radiation Protection Authority SB A-1.A Evaluation of Nuclear Threats in Nordic Surroundings SB A-1.A. 1 Threats from Nuclear Power Plants SB A-1. A.2 Threats from Ship Reactors SBA-1.A.3 Threats from Storage and Handling of Used Fuel and Radioactive Waste SBA-l.B Nuclear Threats in Nordic Surroundings - Base of Knowledge SB A-1.B. 1 Literature Database for Nuclear Threats in Nordic Surroundings SB A-1.B.2 Workshops on Nuclear Threats in Nordic Surroundings SBA-1.B.3 Web Presentation of the Base of Knowledge SBA-1.B.4 Initiate Complementary Studies

SOS-1: Riskvårdering och strategier for såkerhet Kjell Andersson, Karinta-Konsult 2001-01-25 Aktiviteter/resultat Milstolpar/tidsplaner Budget SOS-1, generellt Projektplanering Slutrapport Deltagande Samarbete med SOS-2 och SOS-3 SOS-1.1 Riskvårdering Diskussioner i fokusgrupper Frågeformular Seminarium Rapport Utbi 1 dni ngspaket Gors av projektledare i samråd med projektgrupp Innehåll och medforfattare ar utsedda Representanter från Danmark, Finland, Norge och Sverige deltar i projektet. Projektledarna for SOS-2 och SOS-3 ar med i projektgruppen for SOS-1. Har genomforts i Oskarshamn, 11-12 maj, Har genomforts, analys avslutad Har genomforts enligt plan den 25 sept Utkast till rapport granskas Utkast finns framtaget Budget: 900 000 DKK Projektet ligger over budget framst p.g.a. bestallning om sakerhetsrelaterade frågor i kkv:s ledningsgrapper Enligt plan Ingen kostnad under 2000 Uppskattad nationeli finansiering utover NKSmedel (2000): DKK 1 450 000. Rynns inom projektledarens åtaganden. Enligt plan Enligt plan Enligt plan Enligt plan Enligt plan Enligt plan SOS-1.2 Såkerhetsanalys Seminarium om såkerhetsanalys den 22-23 mars, 2000, Risø Rapport om risldianering inom EU Genomfort Utkast till rapport granskas Klar, Rapport under tryckning Enligt plan Enligt plan Enligt plan

Aktiviteter/resultat SOS-1.3 Såkerhetsvardering - innehåll och strategi Kartlåggning av kvalitetssikring Kvalitetssikring 16-17 jan 2001 Milstolpar/tidsplaner Genomford vid svenska och finska kkv, samt vid Halden Forberedd under år 2000 Budget Något over budget Något over budget (Halden har tillkommit) Enligt plan Dokumentoversikt/rapporter Nummer NKS-3, 1999. NKS-10, 2000 NKS-14, 2000 Forfattare, titel etc. Sakerhetsindikatorer inom karnkraftindustrin; definitioner, anvåndning och erfarenheter. Rapport från ett seminarium på VTT den 17-18 mars 1999, Bjorn Wahlstrom (red.) NKS/SOS-1 Seminarium om såkerhetskultur, Rapport från ett seminarium i Olkiluoto. den 26-27 oktober 1999, Bjorn Wahlstrom, Lennart Hammar Syn på såkerhetskultur vid svenska och finska kårnkraftverk, Lennart Hammar, Bjorn Wahlstrom, Jari Kettunen Projektet NKS/SOS-1, Riskvårdering och strategier for sakerhet, Lagesrapport - september 1999, Kjell Andersson L. Hammar & K. Andersson, Communicating on risk and safety in terms of awareness. VALDOR Symposium Stockholm, June 1999 L. Hammar & K. Andersson, Awareness - A key to safety management and risk communication, ESREL-2000; SRA Annual Conference, Edinburgh, 14-17 May, 2000 Utkast granskas Fardig for tryckning Utkast granskas NKS/SOS-1- Safety analysis, Seminar held on 22-23 March, 2000 Risø National Laboratory. K. Andersson (Ed.) Safety-and risk analysis in other areas than the nuclear industry 1, Igor Kozine, Nils Jan Duijm and Kurt Lauridsen Rapport från seminarium om riskkommunikation, Oskarshamn, 2000-09-25. K. Andersson (Ed.) 1 Rapporten, som ger en oversikt over hur risker varderas, sarskit inomeu, har tillkommit for att ge perspektiv på den riskbedomning som gors inom kamkraften. 8

Doku mente versikt/rapporter Utkast granskas Utkast granskas; Beståliningar Gransoverskridande kommunikation, Rapport från fokusgrupper och enkat i Oskarshamn, Britt-Marie Drottz-Sjoberg Utbildningspaket (OH), Bjorn Wahlstrom NKS/SOS-l (98)B1 NKS/SOS-1 (99)B1 NKS/SOS-l (99)B2 NKS/SOS-1 (OO)Bl Anvandning av såkerhetsindikatorer i det operativa sakerhetsarbetet (VTT) Risos deltagande i NKS/SOS-1 projektet under 1999 (Riso) Definition och anvandning av begreppet såkerhetskultur i det operativa sakerhetsarbetet (VTT) Risos deltagande i NKS/SOS-1 projektet under 2000. Avser bl.a. seminarium på Riso och Sevesodirektiv (Riso) NKS/SOS-l (00)B2 NKS/SOS-1 (0())B3 NKS/SOS-1 (00)B4 NKS/SOS-1 (00)B5 NKS/SOS-1 (00)B6 Bidrag konferensen ESREL -2000 (ES-Konsult) Samordning av krav på sakerhet och dosbegrånsning vid underhall och fornyelse av karnkraftverken Forstudie (ES- Konsult) Kvalitetssikring i komplexa system (VTT) Kommunikation 2000 - fokusgrupper Oskarshamn (BMD Research) Syn på kvalitetssikring vid karnkraftverken - intervjuundersokning vid Halden (ES-Konsult) NKS/SOS-1 (00)B7 NKS/SOS-1 (00)B8 NKS/SOS-1 (O1)B1 Behandling av sakerhetsrelaterade frågor i kamkraftverkens tedningsgrupper (VTT) Utbildningspaket om sakerhetsarbetet på karnkraftverken (VTT) Seminarium om kvalitetssåkring, 16-17 januari, 2001 (ESiConsult) Seminarier 1999 17-18 mars 14-15 april 26-27 oktober S akerhetsindikatorer Riskvardering Sakerhetskultur

Seminarier 2000 22-23 mars 25 september Sakerhetsanalys S åkerhets vardering - fokusgrupper, Oskarshamn 2001 16-17 januari 22-24 augusti 27-27 november Kvalitetssikring Miljokonsekvensbeskrivningar (MKB) och Strategisk miljobedomning (SMB) Slutseminarium Deltagare SOS-l Projektgrupp Kjell Andersson, SOS-l Torkel Bennerstedt, NKS Karin Brodén, Studsvik Radwaste AB Thommy Godås, SSI Lennart Hammar, ES-Konsult Goran Hultqvist, Forsmark Kraftgrupp AB Anders Jorle, SKI Stig-Erik Larsson, SYCON Kurt Lauridsen, Riso Bo Liwång, SKI Bjarne Norén, OKG Annika Ovegård, SKI Jussi Palmu, Posiva Tonis Papp, SKB Bjorn Wahlstrom, VTT Automation Kaisa Simola, VTT Automation Per Wethe, IFE Stig Wingefors, SKI Kaisa Åstrand, STUK SOS-1.1 Riskvardering Kjell Andersson, SOS-l Torsten Carlsson, ordf. i Lokala Såkerhetsnamnden i Kalmar lån Kurt Lauridsen, Riso Bo Liwång, SKI Bjarne Norén, OKG Britt-Marie Drottz- Sjoberg, Institutt for Psykologi (Dragvoll), KASAM Bjorn Wahlstrom, VTT Automation Torkel Bennerstedt, NKS 10

SOS-1.2 Såkerhetsvårdering - såkerhetsanalys Kjell Andersson, SOS-1 Tonis Papp, SEB Kaisa Simola, SOS-2 Lars Gunsell, SKI Kurt Lauridsen, Ri so Dan Wilson, OKG/Nusab SOS-1.3 Sakerhetskultur Kjell Andersson, SOS-1 Lennart Haminar, ES-Konsult Bjorn Wahlstrom, VTT Carl Rollenhagen, Vattenfall Energisystem Kurt Lauridsen, Ri so 11

SOS-2 Reactor Safety Kaisa Simola,VTT Automation 17.1.2001 Activity Time schedule Budget Project management According to schedule. OK Sub-project SOS-2.1 Safety development Task 1. Uncertainty in safety analyses Task 2. Risk informed principles in safety management Sub-project SOS-2.2 Management of plant maintenance and renewal Task 1. Quality of operability verification Task 2. Maintenance decisions Task 3. Human aspects of maintenance Task 4. Plant modernisation and information systems The work is progressing mainly according to the plans, but there are delays in completing of some sub-tasks. The analyses in the comparative study of 03 and F3 level 1 PSAs have been completed and the final reporting is under way. Conference paper on uncertainty studies in PSA has been published. A study on commission errors is going on. Topics for further work have been selected: A study on LOCA frequency estimation is going on. A review of risk informed decision making in USA and a Finnish case study have been ordered (scheduled for 2001). Some changes have been made in the original work plans. Otherwise the work is progressing mainly according to the plans, with slight delays in the completion and reporting of some studies. The task has been closed due to lack of interest in NKS-co-operation (because of national activities). A study on transformer failures is completed. A discussion and working group in the area of maintenance classifications and decision support for selection of maintenance actions has held two meetings. A conference paper on display system design has been published. A study for identification of common features in maintenance related human errors at Finnish NPPs is under way. A survey on the needs of human factors research in maintenance area in Sweden has been planned and ordered (scheduled for 2001). A work plan to review the management of condition monitoring information has been established (interviews scheduled for 2001). Lower costs due to delays in some topics. Lower costs due to delays in some topics. Remaining funds transferred to other tasks. 12

Sub-project SOS-2.3 Severe accidents Task 1. Current status of severe accident research Task 2. Behaviour of organic iodine Task 3. Hydrogen issues The work is progressing mainly according to the plans, except the delay in task 1. Changes in original plans of task 2 are due to the acceptance of an EU-proposal with Swedish participation. A draft version of the state of the art report on Nordic accident management approaches has been completed. A seminar on Nordic severe accident research and management has been held in December. Literature study on gas phase chemistry and removal of CH3I during severe accident has been completed. Experimental studies on the absorption of methyl iodide into the filter solution have been performed. Three-dimensional simulations of hydrogen detonations in a selected room in Olkiluoto reactor building have been made and the study has been reported. Structural analyses of a part of the reinforced concrete wall have been completed and reported. A study on a hydrogen scenario of Ringhals has been planned and ordered (sheduled for 2001). According to plans. NKS financing during 2000: 1450 kdkk National financing during 2000: 1940 kdkk Documents/reports Number Author, title etc. Work and research reports, other technical documents WR/SOS-2(00)1 VTT/TAU BOO 1 WR/SOS-2(00)2 WR/SOS-2(00)3 NKS-18 WR/SOS-2(00)4 WR/SOS-2(00)5 WR/SOS-2(00)6 NKS-xx (in presis) WR/SOS-2(00)7 NKS-xx (in press) Laakso, K. A cause classification model of human errors related to maintenance. Pyy, P., Pulkkinen, U. & Simola, K. How to enhance uncertainty analysis of PSA studies. In Cottam, M.P., Harvey, D.W., Pape, R.P. & Tait: Foresight and Precaution, Proceedings of ESREL 2000 Conference, Edinburgh, Scotland, 15-17.5.2000. pp. 1097-1105. Laakso, K. & Simola, K. (eds.). Reliability centered maintenance miniseminar. Paulsen, J. Design of simple display systems for condition monitoring, using invariants and physical laws. Proceedings of CSEPC2000, Cognitive Systems Engineering in Process Control, November 22-25 2000, Taaejon,Korea. Simola, K. Nordic research project on nuclear safety, SOS-2. In Kondo, S. & Furuta, K.: PSAM5 - Probabilistic Safety Assessment and Management, Proceedings of PSAM5 conference, Osaka, Japan, 27.11.-1.12.2000. Vol. 1. pp.139-144. Saarenheimo, A. Reinforced concrete wall under hydrogen detonation. Silde, A. & Redlinger, R. Three-dimensional simulation of hydrogen detonations in the Olkiluoto BWR reactor building. 13

WR/SOS-2(00)8 NKS-xx (in press) WR/SOS-2(00)9 Minutes of meetings M1N/SOS-2(00)1 MIN/SOS-2(00)2 MIN/SOS-2(00)3 MIN/SOS-2(00)4 MIN/SOS-2(00)5 Contracts AFT/SOS-2(00)1 AFT/SOS-2(00)2 AFT/SOS-2(00)3 AFT/SOS-2(00)4 AFT/SOS-2(00)5 AFT/SOS-2(00)6 AFT/SOS-2(00)7 AFT/SOS-2(00)8 AFT/SOS-2(00)9 AFT/SOS-2(00)10 AFT/SOS-2(00)11 AFT/SOS-2(00)12 Karhu, A. Gas phase chemistry and removal of CH3I during a severe accident. Paulsen, J. Transformer study. Risø National Laboratory, December 2000. SOS-2.1 Safety development, Minutes of the 3. project group meeting 17.-18.2.2000 SOS-2.2 Management of plant maintenance and renewal, Minutes of the 3. project group meeting 21.-22.3.2000 SOS-2.3 Severe Accidents, Minutes of the 3. project group meeting 30.3.2000 SOS-2.1 Safety development, Minutes of the 4. project group meeting 28.-29.9.2000 SOS-2.2 Management of plant maintenance and renewal, Minutes of the 4. project group meeting 12.-13.10.2000 NKS/SOS-2.3: A detailed 3-dimensional analysis of hydrogen detonation in a Nordic BWR reactor building room with DET3D computer code (VTT/ENE) NKS/SOS-2.1 Analysis of commission errors (VTT/AUT) NKS/SOS-2.1: Analysis of commission errors (SwedPower) NKS/SOS-2.2: Study on transformers and condition monitoring information management (Risø National Laboratory) NKS/SOS-2.3: Formation and behaviour of organic iodine, experimental studies (VTT/KET) NKS/SOS-2.3: Formation and behaviour of organic iodine, literature study (VTT/ENE) NKS/SOS-2.2: Contributions to the Task 3 "Human aspects of maintenance" of the subproject SOS-2.2 "Management of plant maintenance and renewal" (VTT/AUT) NKS/SOS-2.2: Contributions to Task 2 "Maintenance decisions" and Task 4 "Modernisation and information systems" of the subproject SOS-2.2 "Management of plant maintenance and renewal" (VTT/AUT) NKS/SOS-2.1: Study of a risk informed safety classification for a Nordic NPP (Fortum Engineering) NKS/SOS-2.1: Application of risk based and risk informed decision in USA (Forsmark Kraftgrupp) NKS/SOS-2.2: Inventering och behov av månskliga-faktorn forskning om underhållsarbete vid svenska karnkraftverk (Lunds Universitet) NKS/SOS-2.3: Vatgas vid sekvenser med återflodning (SwedPower) 14

Project participants Sub-project SOS-2.1 Safety development Sub-project SOS-2.2 Management o;f plant maintenance and renewal Sub-project SCS-2.3 Severe accidents Participants in SOS-2.1 project group: Anders Hallman, SKI Risto Himanen, TVO Jan Holmberg, SwedPower Goran Hultqvist, FKA Ingemar Ingemarson, BKAB Ilkka Niemela, STUK Urho Pulkkinen, VTT Automation Kurt Porn, Porn Consulting Kaisa Simola, VTT Automation Jussi Vaurio, Fortum Power & Heat (Loviisa) Other WG participants (commission errors, F3/O3 comparative studv): Pekka Pyy, VTT Automation Per Evenéus, SwedPower Gisle Andresen, OECD Halden RP Jean-Pierre Bento, JPB-consulting Jonas Bergman, OKG Jan-Tomas Bergstrom, Relcon Pernilla Lunden, FKA Lennart Agrenius, Agrenius Participants in SOS-2.2 project group: Anders Hallman, SKI Jan Holmberg, SwedPower Goran Hultqvist, FKA Kari Laakso, VTT Automation Jette L. Paulsen, Risø Kaisa Simola, VTT Automation Pekka Skogberg, BKAB Petted Tiippana, STUK Other participants in Maintenance Decisions WG: Alpo Savikoski, Fortum Power & Heat (Loviisa) Pentti Saarelainen, Fortum Power & Heat (Loviisa) Jari Snellman, Fortum Power & Heat (Loviisa) Jussi Vaurio, Fortum Power & Heat (Loviisa) Kalle Jankala, Fortum Engineering Esa Unga, TVO Kari Nieminen, TVO WiktorFrid, SKI Veine Gustavsson, SwedPower Anna Karhu, VTT Energy Timo Karjunen, STUK Arja Saarenheimo, VTT Manufacturing Technology Raj Sehgal, KTH Ari Silde, VTT Energy Heikki Sjovall, TVO TordWalderhaug, IFE Riitta Zilliacus, VTT Chemical Technology Caisa Simola, VTT Automation 15

Important meetings/seminars 17.-18.2.2000 21.-22.3.2000 30.3.2000 12.4.2000 28.-29.9.2000 12.-13.10.2000 18.10.2000 7.-8.12.2000 9.2.,14.4.,16.10., 15.12. 11.4.,30.6. SOS-2.1 project group meeting, VTT, Espoo SOS-2.2 project group meeting, Risø SOS-2.3 project group meeting, VTT, Espoo SOS-2.2 "Maintenance decisions discussion and working group" 1. meeting, Loviisa NPP SOS-2.1 project group meeting, SKI, Stockholm SOS-2.2 project group meeting, SwedPower, Stockholm SOS-2.2 "Maintenance decisions discussion and working group" 2. meeting, Olkiluoto NPP SOS-2.3 seminar, Swedpower, Stockholm "Comparative study of 03 and F3 PSAs" - working group meetings, Stockholm "Errors of commission" working group meetings, Stockholm 16

SOS-3:Avfall Karin Brodén, Studsvik RadWaste AB 2001-01-19 Akti vitete r/resu Itat Milstolpar/tidsplaner Budget SOS-3, genere Ilt Projektplanering Utfall Deltagande Samarbete med SOS-1 SOS-3.1: Miljokonsekvensbeskrivningar MKB-temamote i Island, 2-6 september 2000 Planering infor MKB/SMBseminarium (genomfors i samarbete med SOS-1) SOS-3.2: Lagring och deponering Rapport om mellanlagring Rapportering orn deponering Projektet år anpassat till de rådande ekonomiska forutsattningarna. Projektet foljer i stora drag den uppdaterade planen. Representanter från Danmark, Finland, Island, Norge och Sverige deltar i projektet. Projektledaren for SOS-3 ar med i projektgruppen for SOS-1. Rapport från motet klar for tryckning. Motet kommer att hållas i Åbo den 22-24 augusti 2001 och inkluderar besok i Olkiluoto. Planeringsmoten har genomforts. Ett forstå utkast till agenda foreligger. Rapporten klar for slutredigering. Ett avsnitt om fat som deponerats i Kj eller ingår i rapporten om mellanlagring. Eftersom faten ska gravas upp och vidarehanteras blir deponeringen i praktiken en form av mellanlagring. NKS-medel 2000: DKK 700 000 (lagre an i projektplanen från forprojektet). Upparbetning (fakturering + reseirverade medel) ungefår enligt budget. Uppskattad nationell finansiering utover NKSmedel (2000): DKK 1 050 000. Ryms inom projektledarens åtaganden. OK. OK. OK. OK. Omfattningen av delprojektet SOS-3.2 har jlivit något mindre ån i den ursprangliga projektplanen eftersom endast ett fåtal fat i Sjeller hittills gravts upp. 17

Aktiviteter/res u Itat Delprojekt SOS-3.3: Kontaminationsnivåer i metaller Rapport om friklassning i Norden Matningar på prover Rapport om matresultat Planering infor seminarium om radioaktivitet i metaller Milstolpar/tidsplaner Rapporten klar for tryckning. Matningar har genomforts på stål-, aluminium och magnesiumprover. Matningar har aven genomforts på kalibreringsprover. Underlag med resultat från måtningarna ska skickas till projektledaren i januari 2001. Forstå rapportutkastet beraknas vara klart i maj. Seminariet kommer att hållas på VTT den 12-13 september 2001 och inkludera besok vid Kuusakoski Oy. Budget OK. OK. OK. OK. 18

Dokumentoversikt/rapporter Nummer NKS-4 NKS-11 NKS-20 NKS-24 AFT/SOS-3(99)DK1 AFT/SOS-3(99)FI1 AFT/SOS-3(99)IS1 AFT/SOS-3(99)NO1 AFT/SOS-3(99)NO2 AFT/SOS-3(99)SE1 AFT/SOS-3(00)DK1 AFT/SOS-3(00)FI1 AFT/SOS-3(00)IS1 AFT/SOS-3(00)NOl AFT/SOS-3(00)NO2 AFT/SOS-3(00)SE1 REF/SOS-3(99)1 REF/SOS-3(99)2 REF/SOS-3(99)3 REF/SOS-3(00)1 REF/SOS-3(00)2 REF/SOS-3(00)3 Forfattare, titel etc. Karin Brodén. Nordic co-operation on EIA for radioactive waste repositories. Environmental assessment in the Nordic Countries - Experience and prospects. Proceedings from the 3 rd Nordic EIA/SEA Conference, Karlskrona, Sweden, 22-23 November 1999. Nordregio 2000, R2000:3, p 27-30. Karin Brodén, Malgorzata Sne ve och Steinar Backe. Miljokonsekvensbeskrivningar vid slutforvaring av radioaktivt avfall. Temamote, Gardermoen, Norge, 24-25 november 1998. Karin Brodén och Steen Carugati. Miljokonsekvensbeskrivning vid slutforvaring av radioaktivt avfall. Temamote, Roskilde, Danmark, 30-31 augusti 1999. Karin Brodén, Mette Øhlenschlærer, Esko Ruokola, Thora Johnsdottir, Tonje Sekse and Åsa Wiklund. Current practice for clearance in the Nordic Countries. Karin Brodén, Siguråur Emil Pålsson och Poroddur Poroddsson. Miljokonsekvensbeskrivningar i Norden. Temamote, Island, 2-6 september 2000. Karin Brodén, Steen Carugati, Knud Brodersen, Esko Ruokola and Tore Ramsøy. Experiences of Storage of Radioactive Waste Packages in the Nordic Countries. NKS-rapport klar for slutredigering. Avtal med Risø: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med VTT: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med Geislavarnir: Medverkan i SOS-3.1 och SOS-3.3. Avtal med IFE: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med Strålevernet: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med Studsvik Nuclear: Matningar inom SOS-3.3. Avtal med Risø: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med VTT: Medverkan i SOS-3.1 och SOS-3.3. Avtal med Geislavarnir: Medverkan i SOS-3.1 och SOS-3.3. Avtal med IFE: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med Strålevernet: Medverkan i SOS-3.1, SOS-3.2 och SOS-3.3. Avtal med Studsvik Nuclear: Matningar inom SOS-3.3. Tore Ramsøy. Referat från SOS-3.2 arbetsmote, Kjeller, 1999-10-05. Tore Ramsøy. Referat från SOS-3.3 arbetsmote, Kjeller, 1999-10-06. Kristin Fure. Referat från SOS-3.3 arbetsmote, Arlanda, 1999-11-12. Steen Carugati. Referat från SOS-3.2 arbetsmote, Ringhals, 2000-04-11 12. Tore Ramsøy. Referat från SOS-3.3 arbetsmote, Arlanda, 2000-05-04. Ibnje Sekse. Referat från SOS-3.3 arbetsmote, Kjeller, 2000-10-31-2000-11-01. 19

Oversikt over projektdeltagare Danmark Finland Island Norge Sverige h2i Knud Brodersen Steen Carugati w>i Mette Øhlenschlæger 3 Anne Vååtåinen * Antti Ikonen l Ronnie Olander 2 Maija Lipponen 3 Antero Tiitta i Seppo Vuori 1>2 u 5>6ra Jonsdottir Siguråur Emil Pålsson ' 6roddur Poroddsson' Kristin Fure 2lJ SteinarBacke 1>AJ Gordon Christensen ' John Erling Lundby ' ToreRamsøy IAJ Ingar Amundsen ' Christian Holthe ' Tonje Sekse l ' 2 ' 3 Malgorzata Sneve 1>2 ' 3 Helene Stensrud l Kjell Andersson 1 Shankar Menon 3 Olof Soderberg ' Holmfndur Bjarnadottir ' Torsten Eng ' Saida Engstrom ' Bengt Hedberg ' Josef in Viidas 1 Stig Wingefors ' Bjorn Hedberg ' John-Christer Lindhé J Tomas Lofgren ' Maria Norden 1 Magnus Westerlind ' Åsa Wiklund J Yvonne Sandeli 3 Karin Brodén IA3 Risø Risø SIS Handels- och industriministeriet Posiva Posiva VTT VTT VTT Geislavarnir Geislavarnir Skipulag IFE Halden IFE Kjeller IFEKjeller IFE Kjeller IFE Kjeller Statens strålevern Statens strålevern Statens Strålevern Statens Strålevern Statens Strålevern Karinta-Konsult Menon Consulting Miljodepartementet Nordregio SKB SKB SKI SKI SKI SSI SSI SSI SSI SSI, SKI SSI Studsvik Nuclear Studsvik RadWaste 1) Deltagare i SOS-3.1: Miljokonsekvensbeskrivningar 2) Deltagare i SOS-3.2: Lagring och deponering j) Deltagare i SOS-3.3: Kontaminationsnivaer i metaller 20

Viktiga moten och seminarier 1998 SOS-3.1 1999 SOS-3.1 SOS-3.2 SOS-3.3 SOS-3.3 2000 SOS-3.1 SOS-3.2 SOS-3.3 SOS-3.3 2001 SOS-3.1 SOS-3.3 Temamote om miljokonsekvensbeskrivningar vid silutforvaring av radioaktivt avfall, Gardermoen, Norge, 24-25 november 1998. Temamote om miljokonsekvensbeskrivning vid slutforvaring av radioaktivt avfall, Roskilde, Danmark, 30-31 augusti 1999. Arbetsmote om erfarenheter från lagring och deponering, Kjeller, 5 oktober 1999. Arbetsmote om kontaminationsnivaer i metaller, Kjeller, 6 oktober 1999. Arbetsmote om radioaktivitet i metaller från smaltverk, Arlanda, 12 november 1999. Temamote om miljokonsekvensbeskrivningar, Island, 2-6 september 2000. Arbetsmote om erfarenheter från lagring av radioaktivt avfall, Ringhals, 11-12 april 2000. Arbetsmote om resultat från måtprogram, Arlanda, 4 maj 2000. Arbetsmote om resultat från måtningar, Kjeller, 31 oktober- 1 november 2000. MKB/SMB-seminariurn, Åbo, 22-24 augusti 2001 (samarbete med SOS-1). Seminarium om radioaktivitet i metaller, VTT, 12-13 september. 21

BOK-1 Nuclear Emergency Preparedness Bent Lauritzen,Risø National Laboratory 25-01-2001 Activity BOK-1.1 Laboratory measurements and quality assurance Intercomparison exercise on radioactivity measurements Sampling methods in the Nordic countries Accreditation and Q.A. Gamma-spectroscopy software BOK-1.2 Mobile measurements and measurement strategies RESUME 99 exercise Processing of CGS data from RESUME 99 exercise Barents Rescue 2001 Status Mostly according to plans First exercise completed with 34 laboratories participating. Report NKS-19 by Chr. Fogh, Dec. 2000. Second exercise initiated, samples have been mailed to participants. Survey of sampling methods carried out. Report NKS-17 by Mats Isaksson, Oct. 2000. Seminar on accreditation held in Oslo, March 27, 2000. Draft of accreditation report by Sigur5ur Emil Pålsson available. First y-spectrum analysis exercise completed, exercise report by Mika Nikinen available. Second y- spectrum analysis exercise planned. According to plans Exercise report NKS-15 by Simon Karlsson et al., Aug. 2000. Research work proceeds on the integration of AGS and CGS data, e.g., comparing different CGS systems, correlation with land use, road type, depth distribution, etc. A seminar on RESUME 99 exercise data is planned for the spring, 2001. Initial planning of the Barents Rescue monitoring exercise. Budget Budget OK Extra funding of DKK 75,000 from NKS Extra funding of SEK 400 from SSI Extra funding of DKK 1,000 from NKS 22

Activity Status Comments BOK-1.3 Field measurements and data assimilation Theoretical data assimilation project Measurements on routine releases of 41 Ar BOK-1.4 Countermeasu res in agriculture and forestry Data sheets on dose reduction Huginn exercise Handbook on agricultural countermeasures Seminar Electronic manual Transfer factors Forestry BOK-1.5 Emergency monitoring in the Nordic and Baltic Sea countries Report on emergency monitoring BOK-1.6 Emergency exercises Baltic Nuclear Workshop Mobile Internet Delays because of closure of the Risø DR3 reactor; co-ordination with EU FP5 project. Ph.D. project on data assimilation started, work proceeding on data assimilation on short distances. Simultaneous lidar scanning and spectroscopic measurements on plume planned to take place in spring 2001 in Mol, Belgium. Work proceeds as planned Data sheets compiled. Report NKS-16 by Kasper Andersson et al., August 2000. Huginn exercise completed. Report expected February 2001. Work on handbook proceeds as planned. A two-day seminar held in Copenhagen, Oct. 10-11, 2000 with 43 participants. Prototype of electronic manual of agricultural countermeasures available. Web-based version expected in summer 2001. Work on transfer factors for emergency preparedness initiated. Study on remediation techniques in the forestry environment proceeds as planned. Work delayed Work delayed, report expected in February, 2001 Project reorganized in 2000 Workshop planned for March 19-20, 2001 in Stockholm. Work proceeds as planned. 'nvestigation of technology use for emergency preparedness initiated. Pest of system at NEP exercises planned. Budget OK Project delayed High costs due to project enlargement Budget OK Low costs due to delay Extra funding of DKK 400 from NKS 23

Documents/reports Number NKS-Reports NKS-15, BOK-1.2 NKS-16, BOK-1.4 NKS-17, BOK-1.1 NKS-19,B0K-l.l Report, BOK-1.5 (draft) Report, BOK-1.4 (draft) Other reports NGU 2000.087 (BOK-1.2) IT-NT-55 Author, title, etc. S. Karlsson, H. Mellander, J. Lindgren, R. Finck and B. Lauritzen: RESUME 99, Rapid environmental surveying using mobile equipment. K.G. Andersson, A. Rantavaara, J. Roed, K. Rosen, B. Salbu and L. Skipperud: A guide to countermeasures for implementation in the event of a nuclear accident affecting Nordic food-producing areas. M. Isaksson: Sampling methods, A survey of methods in use in the Nordic Countries. C. Lange Fogh: NKS 1999 intercomparison of measurements of radioactivity Radiological Emergency Monitoring Systems in the Nordic and Baltic Sea Countries Huginn. A late-phase nuclear emergency exercise. M.A. Smethurst: Rapid environmental surveying using mobile gamma ray spectrometry: processing of results from the RESUME 99 exercise, Gavle, Sweden. Report of NGU. H.K. Aage et al: Comparison of CGS and AGS measurements of I37 Cs. DTU preprint. Contracts AFT/BOK-1(00)1 AFT/BOK-1(00)2 AFT/BOK-1(00)3 AFT/BOK-1(00)4 AFT/BOK-1(00)5 AFT/BOK-1(00)6 AFT/BOK-1(00)7 AFT/BOK-1(00)8 AFT/BOK-1(00)9 AFT/BOK-1(00)10 AFT/BOK-1(00)11 AFT/BOK-1(00)12 AFT/BOK-1(00)13 AFT/BOK-1(00)14 AFT/BOK-1(00)15 Status reports BOK-1.1 BOK-1.2 BOK-1.6 NKS/BOK-1.4, Procedures for remediating contaminated forest and park areas (SSI) NKS/BOK-1.4, Procedures for remediating contaminated forest and park areas (Risø) NKS/BOK-1.4, Procedures for remediating contaminated forest and park areas (STUK) NKS/BOK-1.4, Deltagelse i BOK-1.4 øvelsen Huginn (SLU) NKS/BOK-1.4, Deltagelse i BOK-1.4 øvelsen Huginn (NLH) NKS/BOK-1.4, Deltagelse i BOK-1.4 øvelsen Huginn (STUK) NKS/BOK-1.4, Deltagelse i BOK-1.4 øvelsen Huginn (Risø) NKS/BOK-1.6, Planlægning af BOK-1.6 øvelsen Østersøkraft (L-G. Wahlberg) NKS/BOK-1.1, Spectrum analysis exercise (Doletum Oy) NKS/BOK-1.2, Sammenligning af AGS og CGS data (DTU) NKS/BOK-1.6, WAP technology (GR) NKS/BOK-1.1, Delprojektledelse (GR) NKS/BOK-1.3, Finansiering af Ph.D. projekt (Risø) NKS/BOK-1.1, Second intercomparison exercise of radioactivity measurements (Risø) NKS/BOK-1.4, Transfer factors for nuclear emergency preparedness (STUK) December 2000, Spectrum analysis exercise January 2001, RESUME 99 database June 2000, Revised project plan 24

Project participants B0K1-1 BOK-1.2 BOK-1.3 BOK-1.4a BOK-1.4b BOK-1.5 BOK-1.6 Sigurdur Emil Pålsson, GR Christian Fogh, Risø Mats Isakson, Goteborg Seppo Klemola, STUK Finn Ugletveit, NRPA Mika Nikinen, Doletum Oy Elis Holm, Risø Hans Mellander, SSI Simon Karlsson, SSI Uffe Korsbech, DTU Kim Bargholz, DTU/DEMA Finn Ugletveit, NRPA Mikael Moring, STUK Jonas Lindgren, SSI Frank Andersen, DEMA Robert Finck, SSI Christer Samuelsson, Lund Kaj Vesterbacka, STUK Mark Smethurst, NGU Soren Bystrom, SGU Bent Lauritzen, Risø Torben Mikkelsen, Risø Mikko Ilvonen, VTT Kim Bargholz, DEMA/DTU Magnus Brink, Plantedirektoratet Jan Preuthun, Jordbruksverket Riitta Hanninen, STUK Aino Rantavaara, STUK Siguråur Orn Hansson, Landbragsministeriet (IS) Jørn Roed, Risø Kasper Andersson, Risø Klas Rosen, SLU Kettil Svensson, Uppsala Brit Salbu, NLH Lynn Hubbard, SSI Aino Rantavaara, STUK Jørn Roed, Risø Kasper Andersson, Risø Sent Lauritzen, Risø Kim Bargholz, DEMA/DTU Lennart Devell, consultant to SSI Sent Lauritzen, Risø Siguråur Emil Pålsson, GR ^ars-goran Wahlberg, consultant 25

Important meetings, seminars 2000 12.1.2000 12-13.1.2000 1-2.2.2000 27.3.2000 26.4.2000 4-5.5.2000 25.5.2000 15.6.2000 10-11.10.2000 21.11.2000 27-28.11.2000 2001 23.1.2001 24-25.1.2001 24-25.1.2001 BOK-1.4 project meeting, STUK BOK-1.2 project meeting, STUK BOK-1.4 WG meetings, Oslo B OK-1.1 seminar, Oslo BOK-1.4b WG meeting, SSI BOK-1.2 WG meeting, Trondheim BOK-1.6 planning meeting, SSI BOK-1.4 WG meeting, Copenhagen BOK-1.4 seminar, Copenhagen BOK-1.3 WG meeting, Risø BOK-1.4 WG meeting, Jonkoping BOK-1.4b WG meeting, SSI BOK-1.4 WG meeting, Oslo BOK-1.2 WG meeting, Sigtuna Non-NKS funding National funding of BOK-1 project work in 2000 is estimated at DKK 1.5 million. Most of the funding is in the form of work-time contributed by participating laboratories to BOK-1.1 (approx. DKK 0.3 million) by BOK-1.2 and BOK-1.4 project members, and by BOK-1.5 monitoring report authors (total approx. DKK 1 million). The project has received contributions of SEK 400 000 from SSI and an extra NKS support of DKK 1 475 000, in addition to the originally decided NKS budget of DKK 1 700 000. This support and the SSI funds for Baltic participation in the project are gratefully acknowledged. 26

BOK-2 Radiological and Environmental Consequences Siguråur Emil Pålsson, Geislavarnir rikisins, Iceland 21 January 2001 Most of the project work is based on contracts and thus the spending for each item has a fixed predefined limit. Type of work Compliance with plan /schedule Compliance with budget plan Project co-ordination Project leadership Meetings BOK-2.1.1 BOK-2.1.1/DK BOK-2.1.1/FO BOK-2.1.1/FI BOK-2.1. I/IS BOK-2.1. I/NO BOK-2.1.1/SE BOK-2.1.2 BOK-2.2 BOK-2.2/DK BOK-2.2/FO BOK-2.2/FI BOK-2.2/IS BOK-2.2/NO BOK-2.2/SE BOK-2.3 Mass spectrometry Work in accordance with plans approved by the NKS Board on 3 May 2000. OK OK See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 See note below 1 OK. Workshop held at NLH, Ås, Norway and work on comparison with traditional methods started. OK OK (payments f. group dinners) OK OK OK OK OK OK OK OK OK OK OK OK OK Additions to BOK-2, approved by the NKS Board, 8 November 2000 Calculation of closes and definition of reference levels for radionuclides in exported forest products (proposed by Elis Holm) Course on internal dosimetry (proposed by Rolf Falk and Tua Rahola, to be integrated with BOK- 2.1.2 work) Radiocaesium levels in lamb, a study on sheep in Våsterbotten county 2001 (proposed by Inger Andersson, to be harmonised with related BOK- 2.1 lamb studies) OK The work described is being harmonised with other relevant work within the project in cooperation with the persons responsible for the proposals. Extra funding was given with each additional work task. The budget for the work planned is in each case within the constraints of this extra funding. The progress of work carried out in each participating country has been satisfactory and according to plan. For details please see the BOK-2 status report, November 2000, a set of reports available at the BOK-2 web site: http://www.gr.is/bok-2/ 27

NKS funding in 2000: Originally DKK 1 800 000, plus an additional DKK 200 000 for work regarding mass spectrometry. Special funding from the NKS for travel support made it possible to invite project participants from the Baltic States to the project group meetings in March and August. Non-NKS funding of project work The structure of project work is essentially the same as in 1999 and the same estimate of non-nks contribution to project work is used here: DKK 5 million. This reflects that the projects are built on ongoing research in each country, but the NKS contribution is essential for creating and maintaining the Nordic co-operation and providing the stimulating research environment for the participants. Reports Status reports describing the work done within BOK-2. They have been updated to November 2000 and can be regarded as drafts for the final reports on each work task. These individual reports are currently available at the BOK-2 web site: http://www.gr.is/bok-2/ and in printed form from the project leader. The listing of reports is divided into sections corresponding to different sections of project work. BOK-2.1.1 Radioecological vulnerability Re-evaluation of fallout data and studies of vulnerability Re-evaluation of Danish fallout data + update Synthesis of fallout data and radioecological vulnerability in Finland Modelling long-term variation of radioecological contamination in the Faroe Islands Radioactive fallout in Iceland from atmospheric nuclear weapons tests Radioactive fallout in Norway from atmospheric nuclear weapons tests - collection of data and evaluation of doses to man Chemical processes (plutonium, caesium) Determination of Radiocaesium Interception Potential (RIP) for Nordic soils and Pu ratios for Norwegian soils Plutonium in a boreal pine forest Mobility of plutonium in a bog-stream system in the catchment of Øvre Heimdalsvatn, Norway Field Sampling and Preparation Procedure for Large Freshwater Samples Prior to Plutonium Analysis A Study of Plutonium in different fresh water systems Summary of Radioecological Research carried out at the Univeristy of Lund Transfer 137 Cs from soil to plants and sheep Transfer of U/ Cs from soil to plants and sheep at Tjøtta, Norway, 1988-1998 Transfer of radiocaesium to lamb meat in the Faroe Islands Transfer of Cs-137 from soil to plants and lamb meat in Iceland Transfer of Cs-137 to lamb meat in Denmark (section in Re-evaluation of Danish fallout data) Sr-90 Studies Monitoring of yu Sr in milk in Norway BOK-2.1.2 Internal doses Internal doses - Summary of project work Assessment of lj/ Cs intake in rural populations in Norway: Results of fieldwork in 1996 Dietary surveys and whole body counting in Kautokeino, Northern Norway 28

Reports BOK-2.2 Radioactive tracers in Nordic sea areas BOK-2.2.1 Sea water transport Map of Nordic sampling stations for seaweed as of January 1999 Contemporary situation in relation to yy Tc releases and monitoring in the marine environment Cs-134/Cs-137 Ratios in Skagerak and in the North Sea Outflow of radiocaesium from the Baltic Sea detected in brown algae along the southern Norwegian coast. Radioactive Tracers in Nordic Waters, Danish Tc-99 Study Radiostctive tracers in fucus at the Finnish coast Tc-99 in Norwegian Sea Areas, Coastal Environments and Studies of its Uptake in Marine Biota Time Trends of Tc-99 in Fucus Vesiculosus long the Norwegian Coast Radioactive tracers in Faroese sea areas Radioactive tracers in the Iceland Sea and Icelandic seaweed Tc-99 measurements in Icelandic seaweed BOK-2.2.2 Biological and biogeochemical processes Scavenging processes and residence time of Th at the Landsort station BY- 31, Baltic Sea Determination of Tc-99 using ICP-MS and Use of Stable Analogues (Re, Mo, W) to Study Temporal Variations in Tc-99 Uptake in Seaweed Comparison between beta-counting and ICP-MS for estimating Tc-99 in seaweed In Situ Sorption of Technetium using Activated Carbon Radioecology in the Baltic States, present situation and developments Estonia: Laboratory at the Institute of Physics, University of Tartu Lithuania: Radiation Protection Centre Contracts Code (Code as below + the prefix "AFT) BOK-2.1.1(00)DK BOK-2.1.1(00)FO BOK-2.1.1(00)FI BOK-2.1.1(00)IS/GR BOK-2.1.1(00)IS/RaLa BOK-2.1.1(00)NO BOK-2.1.1(00)SE BOK-2.1.2(00) BOK-2.2(00)DK BOK-2.2(00)FO BOK-2.2(00)FI BOK-2.2(00)IS/GR BOK-2.2(00)IS/Hafr BOK-2.2(00)NO BOK-2.2(00)SE Organisation / Institute Forskningscenter Risø 1 FroSskaparsetur Føroya Såteilyturvakeskus (STUK) Geislavarnir rikisins (Gr) Rannsoknastofnun landbunaåarins Statens strålevern (NRPA) 1 Lunds universitet Såteilyturvakeskus (STUK) 2 Forskningscenter Risø 1 Froåskaparsetur Føroya Såteilyturvakeskus (STUK) Geislavarnir rikisins Hafrannsoknastofnunin Statens strålevern (NRPA) 1 Lunds universitet 29 Amount (in DKK) 120 000 60 000 95 000 60 000 60 000 95 000 120 000 185 000 120 000 60 000 120 000 80 000 40 000 120 000 120 000

BOK-2.3(00)NLH BOK-2.3(00)Gr Agricultural University (NLH) Geislavarnir nkisins (Gr) 78 000 75 000 1 Co-ordinating institute. Part of the funding goes to other participating institutes. 2 STUK is the co-ordinating institute within BOK-2.1.2. The funding is also shared with researchers in Sweden (co-ordinated by SSI) and Norway (co-ordinated by NRPA). 3 The contract for project leadership is made directly between Geislavarnir nkisins and NKS and it is not included in this list. Project participants BOK-2.1.1 & BOK-2.2 Radioecological vulnerability & Radioactive tracers in Nordic sea areas Sigurdur Emil Pålsson, Gr (IS) Henning Dahlgaard, Risø (DK) Sven P. Nielsen, Risø (DK) Miranda Keith-Roach, Risø (DK) Mette Øhlenschlæger, SIS (DK) Mats Eriksson, Risø (DK) Aino Rantavaara, STUK (FI) Erkki Dus, STUK (FI) Ritva Saxen, STUK (FI) Eila Kostiainen, STUK (FI) Tarja K. Ikaheimonen, STUK (FI) Jukka Mattila, STUK (FI) Vesa-Pekka Vartti, STUK (FI) Kristina Rissanen, STUK (FI) Hans Pauli Joensen, Univ. of Faroe Islands (FO) Trygvi Vestergaard, Univ. of Faroe Islands (FO) Magnus Å. Sigurgeirsson, Gr (IS) 6rhallur I. Halldorsson, Gr (IS) Elisabet Dolinda Olafsdottir, Gr (IS) Olafur Arnalds, Agr. Res. Institute (IS) Eirikur Porkelsson, Agr. Res. Institute (IS) Svend Aage Malmberg, Marine Res. Inst. (IS) Hé5inn Valdimarsson, Marine Res. Inst. (IS) Anne Liv Rudjord, NRPA (NO) Lavrans Skuterud, NRPA (NO) Astrid Liland, NRPA (NO) Line Diana Blytt, NRPA (NO) Deborah Oughton, NLH (NO) Lindis Skiperud, NLH (NO) Tone Bergan, NRPA (NO) Ingar Amundsen, NRPA (NO) Justin Brown, NRPA (NO) Trine Kolstad, NRPA (NO) Gordon C. Christensen, DFE (NO) Per Varskog, IFE (NO) Lars Føyn, IMR (NO) John E. Brittain, LFI (NO) 30

Project participants BOK-2.1.2 Leif Moberg, SSI (SE) Dan Josefsson, SSI (SE) Elis Holm, Univ. of Lund (SE) Per Roos, Univ. of Lund (SE) Enn Realo, Univ. of Tartu, Instit. of Physics (EE) Gendrutis Morkunas, Radiation Protection Centre (LT) Anita Skujina, Lielriga Regional Environmental Board (LV) Internal doses Tua Rahola, STUK (FI) Rolf Falk, SSI (SE) Bente Lauridsen, Risø (DK) Jens Soegaard-Hansen, Risø (DK) Klaus Ennow, Risø (DK) Michael Tillander, Helsinki Univ. (FI) Sigur5ur Emil Pålsson, Gr (IS) Lavrans Skuterud, NRPA (NO) Tone Bergan, NRPA (NO) Aud Raaum, IFE (NO) Tore Ramsoy, IFE (NO) Heidi Andersen, IFE (NO) Goran Ågren, FOA (SE) Tomas Åberg, Barsebåck Kraft AB (SE) Monica Eklof, Forsmarks Kraftgrupp (SE) Felix Kuffner, Forsmarks Kraftgrupp (SE).Mats Hjelm, OKG Aktiebolag (SE) Annette Lovefors Daun, Ringhals AB (SE) Anders Bjoreland, Studsvik Nuclear AB (SE) Mats Isaksson, Inst. for Radiofysik, Sahlgrenska Sjukhuset (SE) Jacob Eberhardt, Departement of Radiation Physics, Lund Univ. (SE) Christofer Raaf, Inst. f. Radiofysik, Univers.sjukhuset MAS, Malmo (SE) Lennart Johansson, Inst. f. Radiofysik, Norrlands Universitetssjukh. (SE) Michael Andersson, ABB-ATOM AB, Vå'sterås (SE) Main meetings / seminars 2000 28-29 March 19-21 August 22-24 Nov. 4-5 Dec. 2001 28 Febr. 18-21 August Project group meeting, Statens strålevern (NRPA), Oslo (held in connection with a B OK-1.1 seminar) Project group meeting in the Faroe Islands Course: ICP-MS measurement oftc-99 and other long-lived radionuclides at Agricultural University of Norway, Ås Workshop on results within the BOK-2.1.2 sub-project on internal doses Project group meeting in connection with the 8th Nordic Radioecological Seminai', Rovaniemi Course on internal dosimetry Visits using ICP-MS facilities at Agricultural University of Norway, Ås Final project group meeting + seminar at Myvatn, Iceland. 31