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THE SERBIAN RADON MAPPING PROJECT: OVERVIEW, STATUS, FURTHER PLANS

THE SERBIAN RADON MAPPING PROJECT: OVERVIEW, STATUS, FURTHER PLANS. Žunić , Z. S. 1 , Bossew , P. 2 , Carpentieri C. 3 , Veselinović , N. 1 ,Tollefsen T., Radanović , S. 4 , Čuknić , O. 5 , Udovičić , V. 6 , Filipovi ć J. 1 ,

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THE SERBIAN RADON MAPPING PROJECT: OVERVIEW, STATUS, FURTHER PLANS

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  1. THE SERBIAN RADON MAPPING PROJECT: OVERVIEW, STATUS, FURTHER PLANS Žunić, Z. S.1, Bossew, P.2, Carpentieri C.3, Veselinović, N.1,Tollefsen T., Radanović, S.4, Čuknić, O.5, Udovičić, V.6, Filipović J.1, Ujic P.1, Stojanovska Z.7,Celikovic I.1, Bochicchio, F.3 1 ECE Lab., Vinča Institute of Nuclear Sciences, University of Belgrade, Serbia 2 Bundesamt für Strahlenschutz German Federal Office for Radiation Protection div. SW 1.1, Germany 3Italian National Institute of Health, Italy 4Economic Association for Production, Processing and Transport, Kolubara Mining Basen Ltd., Lazrevac, Serbia 5 Public Company Nuclear Facilities of Serbia, Serbia 6Low-Background Laboratory for Nuclear Physics, Institute of Physics, University of Belgrade, Serbia 7 Faculty of Medical Sciences, Goce Delcev University, Stip, TFYR of Macedonia, RAD2012, Niš, 25.04.-27.04.2012

  2. Beginning of the study • Radon project objectivites: • Determination of nationalgeographical distribution of indoor radon • Corelation with geology and building characteristic • Identification/prediction of high exposure situations • Development of appropriate remedial/preventative measures • To improve public perception of environmental radioactivity RAD2012, Niš, 25.04.-27.04.2012

  3. Periods of investigation: • Period I-HOUSES: Overview 1997-2008 • 1997-1999 (Kalna (Rn),GornjaStubla (Rn & Tn), Montenegro Adriatric Coast (Rn); • 2003-2007 (Bujanovac, Zlatibor, Han Pijesak, Hydrometereological stations, NiskaBanja, Obrenovac (Rn & Tn) • Period II-HOUSES AND SCHOOLS: Overview 2007-2011 • 2007-2011 (Houses of North Kosovo, Central Kosovo and Prizren region (Rn & Tn)) • 2008-2010 (Schools in Pčinjski district, Jablanički district and Zaječarski district (Rn & Tn)) • Period III-HOUSES: Current status and further plans 2009-2012 • 2011-2012Current project - Houses of Sokobanja (Rn & Tn, Rn/Tn progeny), ONION model • 2009-2012 Houses of Kosovo • Integration of Serbian data into the European indoor Radon map RAD2012, Niš, 25.04.-27.04.2012

  4. ECE history ECE Lab, transferedfrom NIRS (Chiba, Japan) and founded at Vinca Institute, March 17, 2003 II ECE workshop, ’’The new perspectives for thoron survey and dosimetry’’, 2005, Niška Banja, South Serbia I ECE workshop, ’’Promotion of ECE Lab’’,2003, Belgrade RAD2012, Niš, 25.04.-27.04.2012

  5. IV ECE workshop ’’Status of work related to radon in Serbia: ongoing projects, international collaboration and plans’’, 2011, Kragujevac, Central Serbia III ECE workshop ’’First Results of the Serbian Radon (Risk Mapping) Survey ’’, 2010, Beograd and Sokobanja RAD2012, Niš, 25.04.-27.04.2012

  6. DETECTORS RADUET CR-39 UFO Rn/Tn progeny RAD2012, Niš, 25.04.-27.04.2012

  7. Period I:1997-2003-2007Nine field locations: (Rn or Rn&Tn) with Number of houses RAD2012, Niš, 25.04.-27.04.2012

  8. Investigated areas since1997 to 1999 (Rn) RAD2012, Niš, 25.04.-27.04.2012

  9. High Thoron and High Radon: Gornja Stubla (Kosovo) RAD2012, Niš, 25.04.-27.04.2012

  10. Investigated areas since1997 to 2007 (Rn&Tn) Radon effective equvalent doses in investigated rural Balkan communities RAD2012, Niš, 25.04.-27.04.2012

  11. Investigated areas since1997 to 2007 (Rn&Tn) Thoron effective equvalent dosesin investigated rural Balkan communities RAD2012, Niš, 25.04.-27.04.2012

  12. Radon issue in schools of Serbia – the activities from May 2008 to 2011- ORGANIZATION CONTACTS CONTRACTS FIELD ACTIVITY FIELD WORK REPORTS DETECTORS DELIVERY LABORATORY WORK RESULTS MAPPING RAD2012, Niš, 25.04.-27.04.2012

  13. Preparation before field work in schools IIAdministrative implementation • I Design implementation • Contact with municipality: Rn survey performed in exchange for logistic support • III Logistical implementation • Visiting of the area, deployment/collection of detectors, informing local authorities about progress • Select schools; In schools: select room; In room: select location.Communicate to teachers: purpose, method, how to treat the detectors, etc. Logistical implementation RAD2012, Niš, 25.04.-27.04.2012 RAD2012, Niš, 25.04.-27.04.2012

  14. Field work in schools Protocol and database Each site is represented by a file consisting of protocol (one for each visit) and data sheet. • The protocol includes for following data: • Site: district, municipality, village, name of school; • GPS coordinates (map if aveilable) • Type of room, floor level, location of detector • in the room; • Date of detector deployment or collection; • Detector codes; • (observations, remarks). • Information on school and municipality: • School: construction year, construction type (building material), photo; • School: number of pupils and teachers; • Municipality: area and population of municipality, number of schools; • Administrative data and documents. RAD2012, Niš, 25.04.-27.04.2012

  15. Location of detectors in clasrooms RAD2012, Niš, 25.04.-27.04.2012

  16. School building types in rural regions Goločevac,community Trgovište Blendija, community Sokobanja Belut, community Bosilegrad Kosančić community Bojnik Measurement technique • Detectors: CR-39, supplied to Vinča institute by F. Bochiccio, InstitutSuperiorediSanita, Rome • Each school: ≥ 2 ground floor rooms, in each room 2 detectors. • Exposure ½ year, then a new pair of detectors. • Detector locations: • Cupboards, shelves • wall RAD2012, Niš, 25.04.-27.04.2012

  17. Number of used detectors in schools RAD2012, Niš, 25.04.-27.04.2012

  18. Annual radon concentration Summary for each district RAD2012, Niš, 25.04.-27.04.2012

  19. Spatial estimate • FIRST RESULTS ON INDOOR RADON SURVEY IN SERBIAN SCHOOLS RAD2012, Niš, 25.04.-27.04.2012

  20. REPRESENTATIVITY PROBLEMS schools • If the measurement results shall • represent the exposure of the • population or spatial mean Rn: • Is geographical distribution of schools representative for the local population or for the territory? • Location of schools in villages? • Types of school buildings vs. residental • buildings? • Location of detectors witin classroom? type 1: ca. 1900-1930 type 2: ca. a1960-1980 comparable ? old new residential houses new old old old RAD2012, Niš, 25.04.-27.04.2012 RAD2012, Niš, 25.04.-27.04.2012

  21. „Onion“ design confidence interval of estimated mean, based on spatial variability model 3 zones: 1) circle, area = 1 km² 2) circle, area = 2 km² 3) whole town RAD2012, Niš, 25.04.-27.04.2012

  22. First results – houses in Sokobanja Summary statistics (Hale formula) for now: all values used: ground floor, first floor distributions appear neither normal nor lognormal should be below ca. 20-25% mean CV = 0.75 very high!! expected  0.55 RAD2012, Niš, 25.04.-27.04.2012

  23. Integration Serbian data into the European indoor Radon map - current status altogether ca. 800,000 measurements used.

  24. INFORMATION OF THE RESEARCHPROJECT CYCLE 2011-2014 MINISTRY OF EDUCATION AND SCIENCE REGARDING RADON RISK MAPPING IN SERBIA: 41028: AN INTEGRAL STUDY TO IDENTIFY THE REGIONAL GENETIC AND ENVIROMENTAL RISK FACTORS FOR THE COMMON NONCOMMUNICABLE DISEASES IN THE HUMAN POPULATION OF SERBIA 43002: BIOSENSING TECHNOLOGY AND GLOBAL SYSTEM FOR THE CONTINUOS RESEARCH AND INTEGRATED MANAGEMENT OF THE ECOSYSTEMS Conclusion 1. To identified high radon zone 2. High radon and high thoron – GornjaStubla 3. Simultaneously exposure of diferent detectors 4. ONION model – testing 5. Integration Serbian data into EU Atlas of NR 6. International colaboration RAD2012, Niš, 25.04.-27.04.2012

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