Radon concentration measurement in a groundwater in Al-Tuz, Salah Al-Din Governorate using nuclear track detector CN-85

In this research the activity of radon gas in air in Baghad governorate,Iraq, using “alpha-emitters track registration (CR-39) track detector were measured. This measurement was done for selected areas from Baghdad Governorate, The results obtained shows that the highest average concentrations for Rn-222 is (179.077 Bq/m^3) which was recorded within Al-Shaaib city and less average concentrations was (15.79 Bq/m^3) in the nearby residential area of Baghdad International Airport and the overall average concentrations is (86.508 Bq/m^3) for these regions. Then the radon concentration was measured annual effective dose calculated from radon concentration and found in range from 0.4031 mSv/y to 4.5179 mSv /y with an average value of 2.1824 mSv/y. The annual effective dose of radon was within the allowed international limits.

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Radiological Parameters Due to Radon-222 in Soil Samples at Baghdad Governorate (Karakh), Iraq

Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences ◽

10.52763/pjsir.phys.sci.60.2.2017.72.78 ◽

2017 ◽

Vol 60 (2) ◽

pp. 72-78

Author(s):

Ali Abid Abojassim ◽

Ahmed Rahim Shltake ◽

Laith Ahmed Najam

Keyword(s):

Radon Concentration ◽

Annual Effective Dose ◽

Track Detector ◽

Soil Samples ◽

Reference Level ◽

Nuclear Track Detector ◽

Radium Content ◽

Can Technique ◽

Level 3 ◽

Radon Concentrations

Measurements of radon concentration, effective radium content, potential alpha energyconcentration (PAEC) and annual effective dose (AED) were estimated for soil samples in fifteen locationsof the Baghdad governorate (Karakh) in the central part of Iraq. In this survey we used the can technique,containing nuclear track detector (CR-39). The obtained values of radon concentration measurements weregenerally low, ranging from 38.12±13.46 to 94.51±16.5 Bq/m3, with an average 66.07 Bq/m3, while theeffective radium content varied from 5.80±0.21 Bq/kg to 14.39±0.33 Bq/kg with an average 10.09 Bq/kg. The average of the PAEC and AED were assessed to be 7.14 mWL 1.66 mSv/y, respectively. The resultsof the present study shows that the radium content are lower than the allowed limit reported by Organizationfor Economic Cooperation and Development (OECD) that is equal to 370 Bq/kg. In general, it is seen thatthe AED limit was within the recommended reference level (3 mSv/y to 10 mSv/y) of the World HealthOrganization. Also, it is found that there is a strong correlation (R2= 1) between radon concentrations andeffective radium content. The results obtained from this study indicate that the locations of Karakh hasbackground radioactivity(radon concentrations) levels within the natural limits.

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Calibration of a solid state nuclear track detector for the measurements of radon concentration in air

Applied Radiation and Isotopes ◽

10.1016/0969-8043(95)00061-5 ◽

1995 ◽

Vol 46 (6-7) ◽

pp. 483-484 ◽

Cited By ~ 1

Author(s):

K. Hakam Oum ◽

M. Lferde ◽

M. Berrada

Keyword(s):

Solid State ◽

Radon Concentration ◽

Track Detector ◽

Nuclear Track Detector

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Radon-thoron measurements in air and soil from some districts of northern part of India

Nuclear Technology and Radiation Protection ◽

10.2298/ntrp1504294m ◽

2015 ◽

Vol 30 (4) ◽

pp. 294-300 ◽

Cited By ~ 2

Author(s):

Nisha Mann ◽

Amit Kumar ◽

Sushil Kumar ◽

Rishi Chauhan

Keyword(s):

Solid State ◽

Radon Concentration ◽

Indoor Environment ◽

Indoor Radon ◽

Correlation Study ◽

Track Detector ◽

Soil Samples ◽

Indoor Radon Concentration ◽

Nuclear Track Detector ◽

Environmental Activity

Radon, thoron and their progenies in the indoor environment are considered as one of the health hazards. The alpha emitting nature of these gases made it possible to detect in indoor environment with the help of nuclear track detector techniques. The soil is the main source of indoor radon as it contains varying amounts of uranium and thorium. Thus the exhalation of radon from soil and its environmental activity needs to be studied. In the present study, the measurement of the indoor radon-thoron from the indoor environment and exhalation from soil are carried out using solid state nuclear track detector technique from Sirsa and Bhiwani districts of northern part of India. The canister technique was used to measure the radon ex- halation rate from the soil samples collected from the study area and pinhole based radon-thoron dosimeters were used to measure indoor radon and thoron concentration. The results show that indoor radon concentration varied from 9 to 28 Bq/m3, with an average of 18.9 Bq/m3 and from 5 to 21 Bq/m3, with an average of 13.8 Bq/m3, for Bhiwani and Sirsa, respectively. Similarly, thoron concentration varied from 14 to 48 Bq/m3, with average of 28.9 Bq/m3 and 27 to 54 Bq/m3, with the average of 39.0 Bq/m3, for Bhiwani and Sirsa, respectively. The mass exhalation rates from soil samples were also measured, to estimate their contribution to indoor radon. A correlation study was carried out between soil exhalation rates and indoor radon concentration.

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Measurement of Radon (222Rn) Concentrations in the Basaltic Rocks of Yarmouk River, Jordan

Iraqi Geological Journal ◽

10.46717/igj.54.1b.1ms-2021-02-19 ◽

2021 ◽

Vol 54 (1B) ◽

pp. 1-11

Author(s):

Raja' Hamed

Keyword(s):

Radon Concentration ◽

Track Detector ◽

Uranium Isotopes ◽

Total Thickness ◽

Nuclear Track Detector ◽

Major Phase ◽

Basaltic Rocks ◽

Average Value ◽

Yarmouk River ◽

Concentration Levels

This article was conducted to measure radon concentration levels in the Yarmouk River Basalt (YRB), North-Jordan. The YRB is of Quaternary in age and occurred as a successive sheet with a total thickness of 122 meters. The Yarmouk River Basalt is classified into four major phases. Namely, Yarmouk Sheet basalt, Yarmouk blocky basalt, Yarmouk massive basalt, and Yarmouk exfoliated. Furthermore, each major phase is subdivided into several flows. Sixteen samples are measured by using Nuclear Track Detector (Columbia Resin CR-39) in the laboratory. The results show that the concentration of radon is gradually decreased from the lower basalt first phase towards the upper fourth phase in considerable amounts. The values range from 12413.12 to 4137.71 Bq/m3, with an average value of 6635.74 Bq/m3. The results of this investigation indicate that the uranium isotopes element decay is the origin of radon emitted from the interstitial glass in the basalt rocks, rather than 222Rn emission along with fractures or major faults.

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Analysis of radon concentration and gamma dose rate in residential houses of Ambon and Seram Islands, Maluku

Jurnal Natural ◽

10.24815/jn.v21i1.18140 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

WAHYUDI WAHYUDI ◽

ILMA DWI WINARNI ◽

MUJI WIYONO ◽

KUSDIANA KUSDIANA

Keyword(s):

Radon Concentration ◽

Radiation Safety ◽

Track Detector ◽

Average Concentration ◽

Nuclear Track Detector ◽

Environmental Radiation ◽

Average Value ◽

Naoh Solution ◽

Radon Concentrations

Radon concentration analysis in the residential houses on Ambon and Seram Island - Maluku through the passive method using the CR-39 nuclear track detector has been studied. The CR-39 nuclear track detector was installed inside the residential houses for 3 months. After finishing the exposure, the detector was taken and etched using 6.25 N NaOH solution. The nuclear track of radon in the CR-39 was read by a microscope with 400 times magnification. From the results of reading the track, determination of radon concentration in the houses was calculated. The results of the analysis showed that radon concentrations in the residential houses of Ambon and Seram Islands, Maluku at the low level were in the range of 2.56 ± 0.18 Bq/m3 to 59.65 ± 4.22Bq/m3 with an average value of 28.42 ± 1.98 Bq/m3. The average concentration of radon is still below the average radon concentration in the world of 50 Bq/m3. The value of dose received by the population due to exposure of radon and gamma radiation in the range of 0.90-1.44 mSv/year. There is a positive correlation between radon concentration value and total radiation doses received by the population for a year. This data can be used in the study of radiation safety for the Ministry of Health and as a contribution to Indonesia in the international community about monitoring environmental radiation from radon concentrations in residential houses

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Measurement of radon gas concentration in water and soil samples in AL-Najaf governorate by using nuclear track detector (CR-39)

Baghdad Science Journal ◽

10.21123/bsj.12.3.603-610 ◽

2015 ◽

Vol 12 (3) ◽

pp. 603-610

Author(s):

Baghdad Science Journal

Keyword(s):

Radon Concentration ◽

Tap Water ◽

Track Detector ◽

Soil Samples ◽

Exhalation Rate ◽

Nuclear Track Detector ◽

Gas Concentration ◽

Average Value ◽

Radon Gas

The radon gas concentration in environmental samples soil and water of selected regions in Al-Najaf governorate was measured by using alpha-emitters registrations which are emitted form radon gas in (CR-39) nuclear track detector. The first part is concerned with the determination of radon gas concentration in soil samples, results of measurements indicate that the highest average radon concentration in soil samples was found in (Al-Moalmen) region which was (100.0±7.0 Bq/m3), while the lowest average radon concentration was found in (Al-Askary) region which was (38.5±4.7 Bq/m3), with an average value of (64.23±14.9 Bq/m3) ,the results show that the radon gas concentrations in soil is below the allowed limit from (ICRP) agency which is (200 Bq/m3), while the radon exhalation rate (RER) ranged from (35.23-91.52 µBq/m2h), and average value which was (58.77±13.6 µBq/m2h). The second part is concerned with the determination of radon gas concentration in samples of tap water obtained from networks in dwellings in Al-Najaf governorate, the results indicate that the highest average radon concentration in water samples was found in (Meassan) region which was (0.59±0.08 Bq/L), while the lowest average radon concentration was found in (Al-Jamhorah) region which was (0.16±0.04 Bq/L), with an average value of (0.36±0.1 Bq/L), the present results show that the radon gas concentrations in tap water is below the allowed limit from (ICRP) agency which is (0.5994 Bq/L), while the radon exhalation rate (RER) ranged from (2.15-0.58 ?Sv/y), and average value which was (1.28±0.31 ?Sv/y).

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Radon concentration measurement in soil for some northen Iraqi's regions by using CR-39 detector

Baghdad Science Journal ◽

10.21123/bsj.6.3.514-518 ◽

2009 ◽

Vol 6 (3) ◽

pp. 514-518

Author(s):

Baghdad Science Journal

Keyword(s):

Radon Concentration ◽

Track Detector ◽

Soil Samples ◽

Concentration Measurement ◽

Standard Samples ◽

Gas Concentration ◽

Alpha Emitters ◽

Radon Gas ◽

The North ◽

North Part

Concentrations of radon were measured in this study for twenty-four samples of soil distributed in six locations on the north part of Iraq. The radon concentrations in soil samples measured by using alpha-emitters registration that emits from Radon (222Rn) in (CR-39) track detector. The concentrations values were calculated by a comparison with standard samples. The results shows that the radon gas concentrations in Darbandikhan City varies from (16.60-34.04 Bq/m3), Halabja City (16.51-23.32 Bq/m3), Al Sulaimaniya City (17.61-32.25 Bq/m3), Koisnjaq City (22.04-35.65 Bq/m3), Shaqlaua City (21.10-29.10 Bq/m3) and Erbil City (22.30-34.63 Bq/m3). The average radon gas concentration in Al Sulaimaniya and Erbil governorate are (22.30 Bq/m3) and (26.17 Bq/m3) respectively. As a conclusion from the study Radon concentration in governorate of Erbil is relatively higher than that in governorate of Al Sulaimaniya.

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Outdoor radon concentration in China

Nukleonika ◽

10.1515/nuka-2016-0062 ◽

2016 ◽

Vol 61 (3) ◽

pp. 373-378 ◽

Cited By ~ 2

Author(s):

Qifan Wu ◽

Ziqiang Pan ◽

Senlin Liu ◽

Chunhong Wang

Keyword(s):

Radon Concentration ◽

Geometric Mean ◽

Nationwide Survey ◽

Track Detector ◽

Control Programme ◽

Nuclear Track Detector ◽

Radon Level ◽

Average Value ◽

Quality Control Programme ◽

Radon Concentrations

Abstract A nationwide survey was conducted in 2014 to investigate environmental outdoor radon level in 33 provincial cities across China. The radon detector used was a passive-type solid-state nuclear track detector, CR-39. Measurements were conducted under the same condition following the quality control programme. Outdoor radon concentrations in China ranged from 3 to 30.0 Bq·m−3. The annual arithmetic and geometric mean radon concentration were 14 and 13.2 Bq·m−3, respectively. The radon concentrations in the locations near or along coastline were lower than the average value, while those located in the inland area were higher. As a whole, the result showed no big difference from the data measured during the period 1983–1998. It demonstrated that the outdoor radon concentration level in China has not been changing remarkably for 20 years.

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