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Lithuanian environmental monitoring programme for radioactive materials Rima Ladygienė , PhD Radiation Protection Centre Lithuania. Lithuania Republic. population – 3,46 million licensees – more than 1350 sources – sealed more than 4500

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Lithuanian environmental monitoring programme for radioactive materialsRima Ladygienė, PhDRadiation Protection CentreLithuania

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

lithuania republic
Lithuania Republic
  • population – 3,46 million
  • licensees – more than 1350
  • sources – sealed more than 4500
  • practices – all except of irradiation and reprocessing of spent fuel, uranium mining sites, weapon test sites
  • regulatory authority – Radiation Protection Centre, State Nuclear Energy Safety Inspectorate

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

environmental radiological monitoring protection of the members of the public and environment
Environmental radiological monitoring - protection of the members of the public and environment

Estimation of doses due to planned exposure situations (discharges from nuclear installations and hospitals)

Estimation of doses due to existing exposure situations (global contamination and natural radiation)

Estimation of exposure due to emergency exposure situations

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

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Main objective of the environmental radiological monitoring - dose assessment to public due to radioactivity in the environment

based on relevant data from

Environmental radiological monitoring (foodstuffs, air, drinking and surface water, sediments, wild animals meat, raw foodstuffs etc)

Natural radiation (indoor radon, external radiation outside and due to building materials, cosmic radiation etc.)

NORM (potassium fertilizers, building materials, stone wool, ceramics, cement factories etc.)

Wood fuel (natural radionuclides and Cs-137)

Discharges of from nuclear installations and hospitals (liquid and gaseous)

Emergency exposure situations (air contamination due to accident in Japan)

using generic dose assessment models (IAEA SRS-19)

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

objectives of the national environmental radiological monitoring
Objectives of the national environmental radiological monitoring

Providing information to the public and EU member states (all data are available to public at sites Radiation protection Centre www.rsc.lt and Environmental Protection Agency www.aaa.am.lt)

Verification of discharges from nuclear installations and hospitals

Providing of recommendations for reducing of exposure when it is necessary

Providing early warning in case of emergency situations

Maintaining competence for emergency situations

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

i nstitutions in lithuania involved in the environmental radiological monitoring
Institutions in Lithuania involved in the environmental radiological monitoring

Food, drinking water, construction materials, soil, natural radiation, NORM – Radiation Protection Centre (6 persons)

Air, surface water, sediments, dose rate monitoring – Environmental Protection Agency (6 persons)

Radionuclides in imported and exported food, feed, wild products, game – National Food and Veterinary Risk Assessment Institute (3 persons)

Operator’s monitoring in vicinity of nuclear installations – Ignalina NPP and Radwaste Management Agency

Scientific institutions involved – Institutes of Physics, Ecology, Botany

Only national budget is used for routine monitoring

For installation of laboratories – EU funds

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

euratom treaty environmental radiological monitoring data available
EURATOM Treaty - environmental radiological monitoring data available

According European Commission Recommendations of 8 June 2000 on the application of Article of the EURATOM Treaty concerning the monitoring of the levels of radioactivity in the environment for the purpose of assessing the exposure of the population as a whole

Order of organization, implementation of national radiological monitoring and notification of the state and autonomous institutions, European Commission and public (approved by Minister of Environment and Minister of Health Care on 7 October 2002)

137Cs, 90Sr, gross alpha and gross betaare monitored in terrestrial and aquatic food samples (meat, milk, potatoes, cabbages, grain, fish)

mushrooms are analysed for 137Cs

Drinking water are monitored for tritium, gross alpha and gross beta

Data related mainly to global distribution of radioactivity, verification of

discharges from regulated practices

No regular data about radionuclides in soil

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

euratom treaty e nvironmental radiological monitoring data available
EURATOM Treaty - environmental radiological monitoring data available

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

euratom treaty early warning radiation monitoring network
EURATOM Treaty - earlywarning radiation monitoring network

22 stations - 9 PMS of Danish origin, 3 ALNOR of Finish origin, 10 AGIR of Lithuaniaorigin, alarm threshold at 300 nSv/h

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

euratom treaty r adioactivity in fallout and aerosol sampling
EURATOM Treaty - radioactivity in fallout and aerosol sampling

5 stations (Vilnius, Kaunas, Klaipeda, Utena and Dūkštas)

gamma spectrometric and 90Sr measurements in integrated samples (quarterly) are performed

gross beta

aerosol sampling station “JL-900 Snow White” is situated about 60 km from INPP

one ore situated in Vilnius and operated by Institute of Physics

integrating of 5-7 days sample

counting by gamma spectrometry (7Be, 137Cs and 131I)

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

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EURATOM Treaty - radioactivity in surface water and sediments of rivers and lakes, Baltic sea, lagun (HELCOM)

5 lakes, 9 rivers

from major inland waters and from coastal waters

average flow rate (for river waters) during the sampling period should be reported

gamma emitting radionuclides are monitored (gross beta excluding 40K)

13Cs, 90Sr in water and sediments

238Pu-238, 239/240Pu in sediments from lakes

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

s pecial national projects related with radioactivity in the environment
Special national projects, related with radioactivity in the environment

2007“Complex radiological investigations of environment of Ignalina NPP (flora and fauna, soil, ground and drinking water, food, air, external radiation) with the aim of determination of impact of exposure on humans and environment in the region of Ignalina NPP” (Radiation Protection Centre, Institute of Geology and Geography, Institute of Physics and Institute of Botany made different investigations with the aim to prepare for evaluation and forecast of impact of the decommissioning of Ignalina NPP)

2008 „Complex radiological investigations with the aim to assess and prognosis the impact to humans due to decommissioning process in the Ignalina NPP region” (continuation, assessment doses of exposure, creation of data base)

Possibility to indicate NPP impact

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

natural radiation monitoring of indoor radon and radon in drinking water
Natural radiation - monitoring of indoor radon and radon in drinking water

Hygiene Standard HN 85:2003 “Natural Exposure. Standards of Radiation Protection”

more than 3000 measurements starting year 1995

average concentration 32 Bq/m3,

annual dose 0,81 mSv

average in drinking water 16 Bq/l, maximum –50 Bq/l (limitation – 100 Bq/l)

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

natural radiation a mbient external gamma dose monitoring
Natural radiation - ambient external gamma dose monitoring

32 different locations at two regions and 4 cities

6 month duration of exposition

measurement by TLD

annual effective dose 0.59 mSv- 0.96 mSv

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

natural radiation m onitoring of radioactivity in norm industry
Natural radiation - monitoring of radioactivity in NORM industry

Radiological research (dose rate measurements, sampling and radiological investigations) dose assessment was donefor industry

Petroleum refining company

Gas transporting pipelines

Stevedoring company (potassium fertilizers storage and transportation to the ships)

Phosphoric fertilizers manufacturing and waste storage

Drinking water purification

Building materials manufacturing companies (ceramics)

Heating plants, using wood and coal

Cement and stone wool (gaseous210Po and 210Pb due to usage of high temperatures)

Maintenance of boilers and clinker ovens, decommissioning

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

natural radiation m onitoring of radioactivity in wood fuel industry
Natural radiation - monitoring of radioactivity in wood fuel industry

Discharges from combustion plant stacks due to 137Cs in wood fuel

Lithuanian wood and wood fuel products were investigated as well as fuel imported from Ukraine, Russia (Kaliningrad region) and Belarus

Assessment of the effective dose for members of a critical group:

due to the effluents from the combustion power plant stacks

due to usage of ash produced in combustion plants

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

n o e nvironmental radiological monitoring programs for discharges from medical installations
No environmental radiological monitoring programs for discharges from medical installations

Norms of Radionuclide Discharges from Medical, Industrial, Agriculture Installations and During Scientific Research and on the Permitting of Radioactive Discharges (LAND 41- 2001)

Dose assessment to the members of critical groups, permissions for discharges, annual reporting

Hospital using radiopharmaceuticals for treatment installed 2 tanks with capacity 150 m3 each(operator’s monitoring of radioactivity in the tank before discharge to sewage plant)

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

quality control systems of 3 main national radiological laboratories
Quality control systems of 3 main national radiological laboratories

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

Laboratories

  • Radiation Protection Centre
  • National Food and Veterinary Risk Assessment Institute

are accredited according requirements of ISO 17025

Laboratory of Environmental Protection Agency has sertification

Laboratories of scientific institutes has permissions for monitoring of radioactivity in the environment (quality control systems are created) according Decree of Minister of Environment

r adiological monitoring in emergency situations
Radiological monitoring inemergency situations

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

Documentapproved on 06 October 2003 by Order of Minister of Environment and Minister of Health Care

Order of sampling in case of nuclear and radiological accident

prepared on the basis of recommendations of IAEA

  • responsible institutions acting in case of emergency approved by Governmental Decree in 2010
  • typical sampling protocols and sampling instructions
  • field exercises every year for different institutions
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Radiation Protection CentreCapabilities in performing analyses of nuclear or radioactive material of unknown origin, mobile laboratory and team of experts

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

transboundary issues preparedness for monitoring of discharges
Transboundary issues – preparedness for monitoring of discharges

In future plans - 2 neighboring NPP in were close distance to the national Lithuanian boarder (Kaliningrad region and Belorussia), new NPP in Lithuania (2 units)

Background measurements are going on at sites close to new NPP

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

s pecial national projects related with radiation in the environment and t ransboundary issues
Special national projects, related with radiation in the environment and transboundary issues

Radioactivity in soil profilestarted in 2007 at Radiation Protection Centre

net 10x10 km, gamma radionuclides,depth-30 cm, 6 sub-samples, 5 cm core

radon gas in soil

dose rate measurement

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

doses for public in lithuania total 2 6 msv per year
Doses for public in Lithuania, total 2.6 mSv per year

INDOOR RADON

3,11%

12,82%

EXTERNAL GAMMA DOSE

KOSMIC RADIATION

31,46%

EXTERNAL EXPOSURE DUE TO BUILDING MATERIALS

23,69%

MEDICAL EXPOSURE

0,19%

RADIONUCLIDES IN FOOD AND DRINKING WATER

RADON OUTSIDE

3,88%

16,31%

POLUTION DUE TO NUCLEAR WEAPONS TESTS IN OPEN AIR

8,54%

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

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National perspectives on the radiation protection of the environment- from the view of radiation protection regulatory side

All practices are regulated regarding radiation protection issues

Discharges are limited and regulated due to the doses to members of critical groups

National public exposure monitoring program for year 2011-2015 is under preparation

Establishment of National public exposure monitoring data basis is planned in next year

Upgrading laboratories is going on

All possible sources of public exposure are monitored and dose assesment are performed on routine basis

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

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Thank you for attention – spring in Lithuania

Topical Day on Environmental Radiation Monitoring, Oslo, 2011

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