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Tallinn, Estonia, 23-27 May 2016 1
BRUNILDA DACI
INSTITUTE OF APPLIED NUCLEAR PHYSICS
TIRANA-ALBANIA
KOZETA BODE
Responsible person for Radon Measurement in Albania
Tallinn, Estonia, 23-27 May 2016 2
� INTRODUCTION
� REGULATION REGARDING TO RADON CONCENTRATION
� METHOD OF MEASUREMENT OF RADON CONCENTRATION
� INTERCOMPARISON OF THE PASSIVE METHOD
� SURVEY OF INDOOR RADON IN ALBANIA
� MAP AND RESULTS
� RECOMMENDATIONS
CONTENT OF THE PRESENTATION
Tallinn, Estonia, 23-27 May 2016 3
�Based on the Law No. 8025 date 9/11/1995 on
“Protection from the ionising radiation”
�It was approved Regulations for radon
concentration, No. 591, dated 18.08.2011, by the
Decision of Council of Ministers
�The object of these Regulations was to define the
reference levels for the concentration of radon in
workplaces and dwellings and for the activity
concentration of radionuclides in water intended for
human consumption, building materials etc.
REGULATION REGARDING TO RADON
CONCENTRATION
Tallinn, Estonia, 23-27 May 2016 4
Maximum of radon concentration allowed in residential,
public buildings and workplaces.
In new buildings the average annual radon concentration in the
domestic environments should be no more than 200Bq/m3.
The annual average of radon concentration in domestic
environments constructed before year 2000 should be no more
than 400 Bq/m3.
REGULATION REGARDING TO RADON
CONCENTRATION
Tallinn, Estonia, 23-27 May 2016 5
DCM No. 957, date 25.11.2015 on «Reference levels and controlmeasures of indoor Radon concentration and other radionuclidesconcentration in commodities»
Article 3: Radon action plan
-RPC shall establish a national program addressing long-term risks from
radon exposure in dwellings, public buildings and workplaces.
-RPC will identify the areas where the radon concentration (as annual
average) in a significant number of buildings is expected to exceed the
reference levels given in this Regulation.
-Radon ingress into new buildings shall be limited so as the reference levels
given in this Regulation are not exceeded.
Article 4: Radon concentration in workplaces
…The annual average concentration of radon in the air inside workplaces
shall not exceed 300 Bq/m3.
NEW REGULATION REGARDING TO
RADON CONCENTRATION
Tallinn, Estonia, 23-27 May 2016 6
- Nuclear track detectors
(SSNTD) CR 39
- Plastic film
(allyl diglycol carbonate)
- Time of exposure:
3-4 months
RADON MEASUREMENTS
PASSIVE METHOD
Tallinn, Estonia, 23-27 May 2016 7
- Chemically etching:
in 6 M NaOH
RADON MEASUREMENTS
PASSIVE METHOD
- at temperature of 70-80 C,
for 14 h
Tallinn, Estonia, 23-27 May 2016 8
- Counting of the tracks with dixhital microscope,
Type OLYMPUS MIC-D
RADON MEASUREMENTS
PASSIVE METHOD
-Calculation of Radon concentration (Bq/m3)
Tallinn, Estonia, 23-27 May 2016 9
Thermal waters , “Lurisia spa”
(Cuneo, Italy, 2014)
It’s in an excavation site where are present high concentrations of uranium and radon in water and air
INTERCOMPARISON OF THE
PASSIVE METHOD
International Radiation Protection Association
Intercomparison according ISO 17025.
Tallinn, Estonia, 23-27 May 2016 10
Location F2 for 20 our detectors
LOCATION FOR ALL DETECTORS
Tallinn, Estonia, 23-27 May 2016 11
RESULTS FROM THE INTERCOMPARISAON
Tallinn, Estonia, 23-27 May 2016 12
National Project
Financed by Government of Albania
November 1999– February 2000
The aim of the project: Measurement of Radon concentration in:
- ordinary workplaces like office building;
- workplaces in buildings with public access like schools, kindergartens.
In total:
- 38 schools
- 5 kindergartens
- 61 workplaces
FIRST MEASUREMENTS OF RADON IN
WORKPLACES IN ALBANIA
Tallinn, Estonia, 23-27 May 2016 13
DISTRIBUTION OF THE DETECTORS FOR
RADON MEASUREMENT IN WORKPLACES
Tallinn, Estonia, 23-27 May 2016 14
THE RESULTS OF MEASUREMENTS OF
RADON IN SCHOOLS IN ALBANIA
Tallinn, Estonia, 23-27 May 2016 15
THE RESULTS OF MEASUREMENTS OF
RADON IN ORDINARY OFFICE IN ALBANIA
Tallinn, Estonia, 23-27 May 2016 16
THE RESULTS OF MEASUREMENTS OF
RADON IN TIRANA CITY
Tallinn, Estonia, 23-27 May 2016 17
�The preliminary map was created on
2003
�Are monitored 32 cities
� In total: 468 dwellings and workplaces
�312 measurements with active method
from the Institute of Geosciences
�156 measurements with passive method
from Institute of Nuclear Physics
NATIONAL INDOOR RADON SURVEY
IN ALBANIA
Tallinn, Estonia, 23-27 May 2016 18
� IAEA TC Project, ALB/9/008, Titled:
“Upgrading of the Indoor Radon Monitoring Capabilities in Albania”, 2012 - 2014
� Distributed 400 detectors in 18 cities
� Based on the discussions with IAEA experts it is intended tostudy some principal areas of the Albania, which:
1. Have been identified as areas with high radon gas trend, byearlier studies
2. Have a greater population density
3. That not have been studies before
IAEA SUPPORT
Tallinn, Estonia, 23-27 May 2016 19
� Clasification of the study areas
IAEA SUPPORT
Areas with high density of population
Areas that not have been
studied before
Areas that are with high Radon gas
trend
Tallinn, Estonia, 23-27 May 2016 20
During February 2013-May 2014, are carried out measurements of Radon concentration in workplaces
- for 13 cities of Albania (biggest cities),
In total:
- 119 schools
- 6 kindergartens
- 48 workplaces
MEASUREMENT OF INDOOR RADON
CONCENTRATION IN WORKPLACES
Tallinn, Estonia, 23-27 May 2016 21
DISTRIBUTION OF THE DEDECTORS FOR
RADON MEASUREMENT IN WORKPLACES
Tallinn, Estonia, 23-27 May 2016 22
�THE RESULTS OF MEASUREMENTS OF
RADON IN SCHOOLS IN ALBANIA
Tallinn, Estonia, 23-27 May 2016 23
�Results for radon indoor
concentration in 13 schools
with values:
�400 -1000 Bq/m3
THE RESULTS OF MEASUREMENTS OF
RADON IN SCHOOLS IN ALBANIA
�Results for radon indoor
concentration in 10 schools with
values:
�200 - 400 Bq/m3
Tallinn, Estonia, 23-27 May 2016 24
�THE RESULTS OF MEASUREMENTS OF
RADON IN ORDINARY OFFICE
Tallinn, Estonia, 23-27 May 2016 25
�THE RESULTS OF MEASUREMENTS OF
RADON IN TIRANA CITY
Tallinn, Estonia, 23-27 May 2016 26
DATA BASE (EXEL -FILE)
Verbania – Italy, 9 - 13 November 2015 27
� In this map are reported the results obtained in the first stage of indoor radon survey involving 247 measurements and the survey strategy adopted.
�The preliminary information on approximately 10% of the territory, including the biggest cities in Albania
GEOGRAPHICAL DISTRIBUTION OF INDOOR
RADON IN DWELLINGS IN ALBANIA
Verbania – Italy, 9 - 13 November 2015 28
�The indoor radon survey is
conducted from 1999-2014,
�in 10 regions (18 districts) of
Albania,
�247 dwellings are investigated
by means of SSNTD CR 39
passive detectors
�The distribution of Indoor
Radon Concentration (IRnC) is
in the range from
14 to 1238 Bq m-3
THE FREQUENCY DISTRIBUTION OF INDOOR
RADON CONCENTRATION IN DWELLINGS
Tallinn, Estonia, 23-27 May 2016 29
1. - Inform the relevant institutions
- Ministry of Environmental
- Ministry of Education
- Ministry of Health
2. - Inform the interested institutions for measurements in ordinary workplaces like office building, etc.
SOME CURRENT ACTIVITIES TO REDUCING
RADON LEVELS IN EXISTING BUILDINGS
Tallinn, Estonia, 23-27 May 2016 30
Recommendations to the above mentioned Institutions in order to take measures to reduce radon concentration by making several interventions:
1. Sealing of floors and walls
2. Sealing of cracks between the walls of the basement due to the discharge of the sink or the basement floor.
3. Sealing of cracks in the floor
4. Increasing indoor ventilation
5. The best isolation of water pipes
SOME CURRENT ACTIVITIES TO REDUCING
RADON LEVELS IN EXISTING BUILDINGS
(corrective actions)
Tallinn, Estonia, 23-27 May 2016 31
CONCLUSIONS
1. For the Tirana’s schools resulting with high values of
Radon, the measurements will be repeated several times
and detailed studies are needed.
2. The work will continue in the future to increase
significantly the number of measurements.
3. Problem, as always, financial issues.
Tallinn, Estonia, 23-27 May 2016 32
THANK YOU
FOR YOUR
ATTENTION
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