Terrestrial Gamma Radiation Exposure in Bangka-Belitung Islands, Indonesia

Syarbaini, Syarbaini; Setiawan, Arief

doi:10.17146/aij.2015.354

Cited by 3 publications

(4 citation statements)

References 11 publications

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“…The result is in similar range to the previous survey conducted in 2015. The survey in 2015 was conducted with spot measurement, with radiation dose rate in the range of 44 to 512 nGy h -1 (Syarbaini and Setiawan 2015). The average value of 103 nSv h -1 in this present study is relatively lower compared to the average value of 133 nGy h -1 in the survey of 2015.…”

Section: Background Radiation Distribution In Bangka Islandcontrasting

confidence: 52%

“…Due to health risks concerns resulting from mining activities and its HNBR in Bangka Island, this research intends to assess the external radiation dose received by the population of Bangka Island. In the previous study, the dose rate map was obtained using a spot measurement method by dividing the area with square grids (Syarbaini and Setiawan 2015). In the present study, a car-borne radiation survey was conducted to obtain a dose rate map to obtain the distribution of natural background radiation in the studied area.…”

Section: Introductionmentioning

confidence: 98%

“…Several studies related to radiation exposure health risks in Bangka Island have been carried out previously. Research have been conducted to assess natural radionuclide in Bangka Island soil , terrestrial gamma radiation exposure in Bangka Island (Syarbaini and Setiawan 2015), also radon and thoron exhalation rates from surface soil in Bangka Area , as well as natural radioactivity in food crop of Bangka Island (Syarbaini et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Car-borne Survey and Dose Assessment from External Radiation Exposure in Bangka Island

Pradana,

Nugraha,

Wahyudi

et al. 2023

Preprint

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Bangka Island with a history of more than 200 years of tin mining, has brought along the byproduct of heavy minerals which contain radionuclide elements. There are some concerns about this byproduct material contributing to natural radiation in the environment. In this study, a car-borne survey was conducted, to give an accurate assessment of natural background radiation in Bangka Island. The measurement of indoor and outdoor ambient dose rates in 146 houses was also conducted for the assessment of radiation dose from external exposure received by the public. The soil samples were collected and measured by a gamma spectroscopy system to find specific radionuclide contributions to external terrestrial exposure. From 3790 measurement points during the car-borne survey, the highest ambient dose equivalent rate was measured at 596 nSv h−1 found in Muntok area, while the mean value was 101 nSv h−1 and the median value was 95 nSv.h−1. The ambient dose equivalent rate distribution map shows a relatively higher value in the northern coastal area of the island, where the Pemali tin deposit was located. The annual effective doses received from external radiation in 146 houses of Bangka ranged from 0.44 mSv y−1 to 1.30 mSv y−1, with a median value of 0.66 mSv y−1. The soil contains a relatively higher amount of thorium (232Th) which contributes 75% to external radiation exposure in Bangka Island.

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Section: Background Radiation Distribution In Bangka Islandcontrasting

confidence: 52%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Car-borne Survey and Dose Assessment from External Radiation Exposure in Bangka Island

Pradana,

Nugraha,

Wahyudi

et al. 2023

Preprint

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“…In Indonesia, several studies have been initiated in relation to the natural radionuclides concentrations in soil and the outdoor gamma dose rate. Some surveys of activity concentrations of natural radionuclides in soils in different areas have been published [14][15][16]. The surveys are carried out to prepare a baseline data of the natural radionuclides background of Indonesia and determining its contribution to the annual effective dose to members of the public.…”

Section: Introduction mentioning

confidence: 99%

Natural Radionuclides Determination and Radiological Hazard Assessments in Soil from Tual and Kei Islands, Indonesia

et al. 2020

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Natural radionuclides 226 Ra, 232 Th and 40 K in soil are the primary component of the background exposure sources of the population. Study of the external exposure due to gamma-ray radiation of natural radionuclides is important because this may contribute significantly to the total annual individual dose. The purpose of this study is to investigate the natural radionuclides in soils collected from Tual and Kei islands and assess the radiological hazard due to natural radionuclides contents in soil. The soil samples were analyzed for natural radionuclides 226 Ra, 232 Th and 40 K using gamma ray spectrometry. Radiological hazard parameters were estimated from the activity concentration of these radionuclides in order to assess health implication of exposure of the general public. The activity concentrations of 226 Ra, 232 Th and 40 K in soil samples varied from 7.50 Bq kg-1 to 6326 Bq kg-1 , 0.99 Bq kg-1 to 157 Bq kg-1 , 2.97 kg-1 to 98.91 Bq kg-1 with the average value of 2162 Bq kg-1 ; 69.68 Bq kg-1 and 30.74 Bq kg-1 , respectively. The absorbed dose rates due to the presence of 226 Ra, 232 Th and 40 K, in soil samples in the studied area vary between the range of 4.88 nGy h-1 and 3018.80 nGy h-1 with the average value of 1042 nGy h-1. The corresponding outdoor annual effective doses ranged between 0.01 mSv y-1 and 3.70 mSv y-1 with the average value of 1.28 mSv y-1. Radium equivalent activities are calculated to be in the range of 10.42 Bq kg-1-6553.03 Bq kg-1 with the average value of 2264 Bq kg-1. The external and internal hazard indexes vary from 0.03 to 17.71 with the average value of 6.12 and 0.05 to 34.81 with the average value of 11.96, respectively. All calculated average radiological hazard indices were higher than the limits recommended for individual members of the public.

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Car-borne survey and dose assessment from external radiation exposure in Bangka Island

Pradana,

Nugraha,

Wahyudi

et al. 2023

Environ Sci Pollut Res

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Terrestrial Gamma Radiation Exposure in Bangka-Belitung Islands, Indonesia

Cited by 3 publications

References 11 publications

Car-borne Survey and Dose Assessment from External Radiation Exposure in Bangka Island

Car-borne Survey and Dose Assessment from External Radiation Exposure in Bangka Island

Natural Radionuclides Determination and Radiological Hazard Assessments in Soil from Tual and Kei Islands, Indonesia

Car-borne survey and dose assessment from external radiation exposure in Bangka Island

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