scholarly journals Measurements of Radon-222 and its Daughters Concentrations in Buildings of Department Physics in College of Sciences of Baghdad University

2008 ◽  
Vol 5 (4) ◽  
pp. 605-611
Author(s):  
Baghdad Science Journal
Keyword(s):  
Solid State ◽  
Radon Concentration ◽  
Indoor Radon ◽  
Radon Level ◽  
Nuclear Track Detectors ◽  
Radioactive Sources ◽  
Radon Concentrations

The present work aims to investigate approaches, measures and detection of indoor radon level in buildings of the department of physics in college of science of Baghdad University. CR-39 solid state nuclear track detectors were used to measure the radon concentrations inside the rooms, including five laboratories and five workplace rooms in ground and first storey of the department. The average radon concentration at first storey was found to be 43.1±13.2 Bq/m3 and 40.1±13.4 Bq/m3 at the ground storey. The highest level of radon concentration at the first storey in the radioactive sources store was 87.5±29 Bq/m3 while at the ground storey in room(2) was 70.2±24 Bq/m3 which is due to the existence radioactive sources in some selected places at the buildings.

scholarly journals Measurement Radon Concentration in Imported and Local Wood Using Solid State Nuclear Track Detectors

2013 ◽  
Vol 10 (2) ◽  
pp. 296-300
Author(s):  
Baghdad Science Journal
Keyword(s):  
Solid State ◽  
Radon Concentration ◽  
Building Materials ◽  
Detection Technique ◽  
Measurement Device ◽  
Radon Gas ◽  
Nuclear Track Detectors ◽  
Cylindrical Diffusion ◽  
Diffusion Tube ◽  
Radon Concentrations

Abstract: The aim of the present work is to measure radon concentration in wood. Solid state nuclear track detectors of type CR – 39 was used as measurement device. Eight different samples of imported and local wood were collected from markets. Samples were grinded, dried in order to measure radon concentrations in it. Cylindrical diffusion tube was used as detection technique. Results show that the higher concentration was in Iraqi sample 1 which recorded (14.02 ± 0.9) Bq / m3, while the less was in Emirates Sample which recorded (5.35 ± 1.2) Bq / m3. From the present work, all wood samples were with lowest concentrations of radon gas than other building materials.

scholarly journals Measurement of radon concentrations for some houses in Al-Najaf city /Iraq

2019 ◽  
Vol 11 (22) ◽  
pp. 51-55 ◽  
Author(s):  
Ali A. Al-Hamidawi
Keyword(s):  
Solid State ◽  
Radon Concentration ◽  
Concentration Level ◽  
Indoor Radon ◽  
Summer Season ◽  
Alpha Particles ◽  
Indoor Radon Concentration ◽  
Long Term Measurement ◽  
Radon Concentrations

    Measurement of radon concentration level was carried out in 40 houses in Al – Najaf city during summer season of 2012. Long term measurement of indoor of old building radon concentrations have been taken, using a previously calibrated passive diffusion dosimeters containing CR – 39 solid state nuclear track detectors which are very sensitive for alpha particles. The measurement of the indoor radon concentration obtained in summer in these regions ranged from 11.654±4.216 Bq.m-3 to 53.610±8.777 Bq.m-3. The results were within universally permitted levels.     

A study of indoor radon levels in rural dwellings of Ezine (Canakkale, Turkey) using solid-state nuclear track detectors

2008 ◽  
Vol 131 (3) ◽  
pp. 379-384 ◽  
Author(s):  
Y. Orgun ◽  
N. Altinsoy ◽  
S. Y. Sahin ◽  
B. Ataksor ◽  
N. Celebi
Keyword(s):  
Solid State ◽  
Indoor Radon ◽  
Nuclear Track Detectors

Estimation of indoor radon, thoron and their progeny using twin cup dosemeters with solid-state nuclear track detectors in Digboi of Upper Assam

2003 ◽  
Vol 36 (1-6) ◽  
pp. 461-463 ◽  
Author(s):  
D. Barooah ◽  
I. Laskar ◽  
A.K. Goswami ◽  
T.V. Ramachandran ◽  
K.S.V. Nambi
Keyword(s):  
Solid State ◽  
Indoor Radon ◽  
Nuclear Track Detectors

scholarly journals Radon measurements with CR-39 track detectors at specific locations in Turkey

2004 ◽  
Vol 19 (1) ◽  
pp. 46-49 ◽  
Author(s):  
Asiye Ulug ◽  
Melek Karabulut ◽  
Nilgün Celebi
Keyword(s):  
Radon Concentration ◽  
Indoor Radon ◽  
Active Faults ◽  
Indoor Radon Concentration ◽  
Arithmetic Means ◽  
Radon Measurements ◽  
New Buildings ◽  
Main Factor ◽  
Ventilation Conditions ◽  
Radon Concentrations

Indoor radon concentration levels at three sites in Turkey were measured using CR-39 solid state nuclear track detectors. The annual mean of radon concentration was estimated on the basis of four quarter measurements at specific locations in Turkey. The measuring sites are on the active faults. The results of radon measurements are based on 280 measurements in doors. The annual arithmetic means of radon concentrations at three sites (Isparta Egirdir, and Yalvac) were found to be 164 Bqm?3, 124 Bqm?3, and 112 Bqm?3 respectively, ranging from 78 Bqm?3 to 279 Bqm?3. The in door radon concentrations were investigated with respect to the ventilation conditions and the age of buildings. The ventilation conditions were determined to be the main factor affecting the in door radon concentrations. The in door radon concentrations in the new buildings were higher than ones found in the old buildings.

The Alpha Particle Doses Received by Students and Staff in Twenty Schools in the North of Hebron Region - Palestine

2021 ◽  
Vol 14 (4) ◽  
pp. 309-316
Keyword(s):  
Effective Dose ◽  
Radon Concentration ◽  
Annual Effective Dose ◽  
Indoor Radon ◽  
Alpha Particles ◽  
Indoor Radon Concentration ◽  
The North ◽  
Cr 39 Detectors ◽  
Average Effective Dose ◽  
Radon Concentrations

Abstract: The aim of the current study was to measure indoor radon concentration levels and its resulting doses received by the students and staff in schools of the directorate of education in the north of Hebron region- Palestine, during the summer months from June to September (2018), using CR-39 detectors. In this study, a total of 567 CR-39-based radon detectors were installed in the selected schools. The average radon concentrations were found to be 90.0, 66.5 and 58.0 Bqm-3 in Halhul, Beit Umar and Alarrub camp schools, respectively. Based on the measured indoor radon data, the overall average effective dose for the studied area was found to be 0.31 mSvy-1. Reported values for radon concentrations and corresponding doses are lower than ICRP recommended limits for workplaces. The results show no significant radiological risk for the pupils and staff in the schools under investigation. Consequently, the health hazards related to radiation are expected to be negligible. Keywords: Radon concentration, Alpha particles, Annual effective dose, Schools. PACs: 29.40.−n.

scholarly journals A reconnaissance study of radon concentrations in Hamadan city, Iran

2010 ◽  
Vol 10 (4) ◽  
pp. 857-863 ◽  
Author(s):  
G. K. Gillmore ◽  
N. Jabarivasal
Keyword(s):  
Radon Concentration ◽  
Limit Of Detection ◽  
Indoor Radon ◽  
Alluvial Fan ◽  
Winter Period ◽  
Radiological Protection ◽  
Indoor Radon Concentration ◽  
Western Iran ◽  
Surficial Deposits ◽  
Radon Concentrations

Abstract. This paper presents results of a reconnaissance study that used CR-39 alpha track-etch detectors to measure radon concentrations in dwellings in Hamadan, western Iran, significantly, built on permeable alluvial fan deposits. The indoor radon levels recorded varied from 4 (i.e. below the lower limit of detection for the method) to 364 Bq/m3 with a mean value of 108 Bq/m3 which is 2.5 times the average global population-weighted indoor radon concentration – these data augment the very few published studies on indoor radon levels in Iran. The maximum radon concentration in Hamadan occurs during the winter period (January to March) with lower concentrations during the autumn. The effective dose equivalent to the population in Hamadan is estimated from this study to be in the region of 2.7 mSv/y, which is above the guidelines for dose to a member of the public of 1 mSv/y suggested by the International Commission on Radiological Protection (ICRP) in 1993. This study supports other work in a number of countries that indicates such permeable "surficial" deposits as being of intermediate to high radon potential. In western Iran, the presence of hammered clay floors, the widespread presence of excavated qanats, the textural properties of surficial deposits and human behaviour intended to cope with winds are likely to be important factors influencing radon concentrations in older buildings.

scholarly journals Short-Term Measurement of Indoor Radon Concentration in Northern Croatia

2020 ◽  
Vol 10 (7) ◽  
pp. 2341 ◽  
Author(s):  
Anita Ptiček Siročić ◽  
Davor Stanko ◽  
Nikola Sakač ◽  
Dragana Dogančić ◽  
Tomislav Trojko
Keyword(s):  
Radon Concentration ◽  
Indoor Radon ◽  
Geometric Mean ◽  
Construction Materials ◽  
Health Issues ◽  
Short Term ◽  
Indoor Radon Concentration ◽  
Ground Floor ◽  
Northern Croatia ◽  
Radon Concentrations

(1) Background: Radon concentrations in the environment are generally very low. However, radon concentrations can be high indoors and can cause some serious health issues. The main source of indoor radon (homes, buildings and other residential objects) can be soil under the house, while other sources can be construction materials, groundwater and natural gas. Radon accumulates mainly in the lower levels of the buildings (especially low-ventilated underground levels and basements). (2) Methods: in this paper, we have measured the indoor radon concentrations at 15 locations in various objects (basements and ground floor/1st floor rooms) in the area of northern Croatia. (3) Results: the results show a higher concentration of radon in the basement area in comparison to values measured in the ground floor and first-floor rooms. The arithmetic mean (AM) and geometric mean (GM) of basement rooms were 70.9 ± 38.8 Bq/m3 and 61.2 ± 2.2 Bq/m3 compared to ground floor and first-floor rooms 42.5 ± 30.8 Bq/m3 and 32.8 ± 2.9 Bq/m3, respectively. (4) Conclusions: results obtained (AM and GM values) are within the maximal allowed values (300 Bq/m3) according to the Euroatom Directive. However, there are periods when maximum radon concentration exceeds 300 Bq/m3. Indoor radon concentrations vary with the occupancy of the rooms and it is evident that the ventilation has significant effect on the reduction of concentration.

Sign in / Sign up

Export Citation Format

Share Document