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Status of Radon Related Works in Lithuaniagnssn.iaea.org/RTWS/general/Shared Documents... ·...
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Status of Radon Related Works in LithuaniaPresentation 1
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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National Demographic Data
Radiacinės saugos centras
Area 65 300 km²
Population 2 944 459
Urban/Rural population
67 %/ 33 %
Age distribution
0-14 m.: 14,2 %
15-64 m.: 69,6 %
> 65 m. : 16,2 %
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Geography and Climate
Radiacinės saugos centras
North Lithuanian Karst region, territory of 400 km²
Extreme temperatures in Lithuania (°C)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Highest temp.
12.6 °C 16.5 °C 21.8 °C 28.8 °C 34 °C 35 °C 37.5 °C 36 °C 32 °C 26 °C 18 °C 15.6 °C
Lowest Temp.
−40.5 °C −42.9 °C −37.7 °C −23 °C −6.8 °C −2.8 °C 0.9 °C −2.9 °C −6.3 °C −19.5 °C −23 °C −34 °C
Average temperatures are: −6 °C in January 16 °C in July
(20 °C is frequent on summer days and 14 °C at nights)
Four Season Climate
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National Housing Stock
Radiacinės saugos centras
Total dwellings in Lithuania aprox. 1 million 400
Single dwelings Flats
Wood
Bricks
Concreat
Wood
Bricks
Concreat
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Existing legislation
Radiacinės saugos centras
Reference level:for living areabeforeHygiene Standard 300 Bq/m3for newconstruction 200 Bq/m3for working placebeforeHygiene Standard 300 Bq/m3if working less than 80 % working time 1000 Bq/m3for newconstruction 200 Bq/m3if working less than 80 % working time 400
Hygiene Standard HN85:2011 “Natural exposure.Standard of Radiation Protection” adopted by the Order No. V-890of 7 October 2011 by the Minister of Health Care
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Status of Radon Related Works in LithuaniaPresentation 2
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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Radon in Homes
Radiacinės saugos centras
Total measured about 2400 dwellingsDwelling 55 Bq/m3
Total measured about 300 flatFlat 15 Bq/m3
North Lithuanian Karst region100 Bq/m3
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Measurement of radon
Radiacinės saugos centras
E-perm electrets were used for measurements
Radon activity concentration
BkT
FIA −−=
Bq/m3
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Status of Radon Related Works in LithuaniaPresentation 3
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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Radon mapping in the country
Radiacinės saugos centras
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Status of Radon Related Works in LithuaniaPresentation 4
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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Radon and civil engineeringany special construction or building usage
characteristics of possible relevance to indoor radon:
List of building materials and clasification before certification
guidelines for preventive measures and corrective actions:
Buklests
requirements of building code and building standards related to protection of buildings against radon:
No any requirements
Radiacinės saugos centras
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Status of Radon Related Works in LithuaniaPresentation 5
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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Radon communication strategy
Radiacinės saugos centras
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Status of Radon Related Works in LithuaniaPresentation 6
Julius Žiliukas
Director Department of
Expertise and Exposure Monitoring
Radiation Protection Centre
Radiacinės saugos centras
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Radon Programme
Radiacinės saugos centras
Random dwellings in Lithuania1995-1998
Measurements in dwellings where higher radon concen trations were detected 1995-1998 year
2001-2005
Measurements in flat 2001-2004
Measurements in childcare facilities 2002-2005
Measurements in working places 2003
Radon risk assessment 2004
Europe radon map 2006
Program approved by Ministry of Health 2007-2008
Program approved by Director of RPC for establishi ng Lithuanian radon map
2011-2013
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Radiacinės saugos centras
Radon measurement continuation 2014-2016
Program approved by Director of RPC for establishing Lithuanian radon map
and assesment of risk