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Radon in kindergartens and other workplaces in
Bosnia and Herzegovina23-27 May 2016
Tallinn, Estonia
Bosnia and Herzegovina
State Regulatory Agency for Radiation and Nuclear Safety
� Kindergatens and
schools
� Kindergarten „Bosanska
Krupa“
� Brief about Rn-222 in
charcoal mine‘s in B&H
� Reminder
Introduction
• Public Health
Institute of FB&H
– authorized
• Measurments on
request
• Municipality
Bosanska Krupa
• Kindergartens
and schools
Kindergartens and schoolsLOCATIONS
Bosanska Krupa
• Passive method
• Charcoal canisters
• April 2013
• Min.12 hours closed – before&during
• High-resolution gamma spectrometer
relative efficiency of 30 % with
integrated electronic system and
software for processing of spectra,
analysis and evaluation of the results
of measurements of GAMMA VISION
(Ortec)
• 25 Bq/m3– 831 Bq/m3
Kindergartens and schools MEASURMENTS
(basements, classrooms,
offices, sleeping rooms,
rooms for working staff as
well as rooms designed for
living in a kindergarten)
• Downtown of city
• All rooms measured
• Max. 831 Bq/m3
• Older group, toilet –
ground-floor
Kindergarten „Bosanska Krupa“
Kindergarten „Bosanska Krupa“ RESULTS 1
BOSANSKA KRUPA VRTIC 2013
PERIOD UZORKOVANJA: 08/04-10/04/2013
DATUM MJERENJA: 11/04/2013 i 12/04/2013
LOKACIJA VRIJEME
POCETKA I
ZAVRSETKA
UZORKOVANJA
POCETAK
MJERENJA
MJERENJA
VRIJEME
MJERENJA
(s)
MASA
PRIJE
(g)
MASA
POSL.
(g)
RAZLIKA
MASE (g)
AKTIVNOST
(Bq/m3)
KAN 1 JASLICE SPRAT 1 18:19-18:21 11/04/2013
14:00
2700 130.10 134.07 3.97 348±21
KAN 2 JASLICE SPRAT 2 18:20-18:22 11/04/2013
10:34
2700 133.30 138.55 5.25 295±18
KAN 3 KANCELARIJA
DIREKTOR
18:23-18:26 11/04/2013
10:37
2700 132.78 137.27 4.49 163±10
KAN 4 IGRAONICA
SPRAT
KLACKALICA
18:25-18:26 11/04/2013
15:40
7200 129.83 134.79 4.96 318±19
KAN 5 IGRAONICA
TRAMPOLINA
18:25-18:25 11/04/2013
9:43
2700 131.78 136.18 4.40 262±16
Kindergarten „Bosanska Krupa“ RESULTS 2
KAN 5 IGRAONICA
TRAMPOLINA
18:25-18:25 11/04/2013 9:43 2700 131.78 136.18 4.40 262±16
KAN 6 SOBA ZA OSOBLJE
SPRAT
18:27-18:27 11/04/2013
14:50
2700 130.77 135.02 4.25 190±11
KAN 7 CETVRTA SOBA
PRIZEMLJE
18:29-18:29 12/04/2013 7:50 2700 130.95 136..38 5.43 270±16
KAN 8 STARIJA ODG. GRUPA 18:31-18:30 12/04/2013 7:50 2700 133.64 139.76 6.12 206±12
KAN 9 HOL PRIZEMLJE 18:35-18:31 12/04/2013 9:00 2700 132.72 138.40 5.68 211±13
KAN 10 LEPTIRIC 18:39-18:33 11/04/2013
12:23
2700 130.18 136.07 5.89 169±10
KAN 11 ULAZ DONJI KOD WC 18:41-18:35 11/04/2013
12:25
2700 132.51 135.76 3.25 121±7
KAN 12 JASLICE PRIZEMLJE 18:43-18:35 11/04/2013 9:50 2700 134.47 137.14 2.67 160±10
KAN 13 SEKRETAR
KANCELARIJA
18:45-18:36 11/04/2013
13:10
2700 129.90 134.20 4.30 102±6
Kindergarten „Bosanska Krupa“ RESULTS 3
KAN
14SOBA ZA
ODGOJITELJICE
18:46-18:38 11/04/2013
11:24
2700 131.4
9
136.58 5.09 80±5
KAN
15TRPEZARIJA 18:48-18:39 11/04/2013
13:15
2700 131.1
6
137.18 6.02 182±11
KAN
16KUHINJA 18:52-18:41 12/04/2013
09:03
2700 133.2
3
141.28 8.05 360±22
KAN
17MAGACIN 18:53-18:43 12/04/2013
10:23
2700 132.4
4
137.25 4.81 250±15
KAN
18KOTLOVNICA 18:55-18:45 12/04/2013
10:22
2700 130.6
0
137.13 6.53 632±38
KAN
19ULAZ GORNJI 18:57-18:44 12/04/2013
11:09
2700 129.9
1
135.51 5.60 342±21
KAN
20WC STARIJA
GRUPA
19:05-18:47 12/04/2013
10:10
2700 132.5
1
137.85 5.34 831±50
Kindergarten „Bosanska Krupa“ MITIGATION
• Need for mitigation
• Provided resources
• Reconstruction of the
space
• New ventilations for
„channeling“ Rn-222
• More frequent airing
Brief about Rn-222 in charcoal mine‘s in B&H
• Doctoral thesis „The
study of radon in the
coal mines of Bosnia
and Herzegovina by
applying nuclear
measurement methods“
by Zejnil Trešnjo,
physicist
• Two type measurments:
- solid state nuclear track
detectors – SSNTD
- ionization chamber
radon detector
Brief about Rn-222 in charcoal mine‘s in B&H - 1
• Parallel – gamma dose rate (ADL Gamma Tracer) & „control
points“
• Equipment
- Radosys, Hungary & CR-39
- Alpha GUARD, Germany type PQ 2000 PRO/MC50
� 2 - start & after of measurements
� 10 min
• 2008 – 2009 - different durations
Brief about Rn-222 in charcoal
mine‘s in B&H – 1 (cont‘d)
• Open-pits (4) & caves (5) – grid & „full operation“
Brief about Rn-222 in charcoal mine‘s in B&H – 2
Important parts and conclusions:
• Results within or below the limits
• Ventilation
• Type of charcoal
• RAC in mine‘s with Alpha Guard higher during new
exploitation
Brief about Rn-222 in charcoal
mine‘s in B&H – 2 (cont‘d)Important parts and
conclusions:
• „Control points“ near mining
caves 37 ± 8 Bq/m3 - 63 ±
13 Bq/m3
• Type of building materials
• Estimated annual effective
dose (for 8 hours/day)
within the limits
• The highest 0,572 mSv/yr
(cave – „Đurđevik“)
Reminder
• Draft on NORM – Articles on Rn-222
• Still 1000 Bq/m3 300 Bq/m3
• 2 TCO‘s authorized & some research based investigation
• Radon action plan (2018)
• IPA 2011 – EU BSS 2013/53/EURATOM & EU DWD
2013/51/EURATOM