Analysis of the natural radioactivity concentrations of the fine dust samples in Jeju Island, Korea and the annual effective radiation dose by inhalation

Han, Chung Hun; Park, Jae-Woo

doi:10.1007/s10967-018-5873-6

Cited by 13 publications

(8 citation statements)

References 19 publications

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“…However, the calculated values in this study area were 4.5 times less for 232 Th and 2.3 times less for 238 U. On the other hand, the world mean atmospheric activity concentrations of 232 Th, 226 Ra and 238 U associated with dust are 0.5, 1.0 and 1.0 μBq.m À3 , respectively (Han and Park, 2018).…”

Section: Discussioncontrasting

confidence: 54%

“…The world average activity concentrations for 232 Th and 238 U in dust is 30 Bq.kg À1 and 35 Bq.kg À1 respectively (Han and Park, 2018). However, the calculated values in this study area were 4.5 times less for 232 Th and 2.3 times less for 238 U.…”

Section: Discussionmentioning

confidence: 55%

“…The annual effective dose from inhalation E inh (Sv.y À1 ) is calculated using the equation (Corrigall, 2004;Han and Park, 2018);…”

Section: Irradiation From Inhaled Radionuclidesmentioning

confidence: 99%

“…In both adults and infants, the 226 Ra is responsible for the main contribution to inhalation dose. The world averages for the mean atmospheric activity concentrations of 232 Th, 226 Ra and 238 U associated with dust are 0.5, 1.0 and 1.0 μBq.m À3 , respectively (Han and Park, 2018). Table 3 shows the activity concentrations of soil samples in Bq.kg À1 .…”

Section: Activity Concentrations Of Radionuclides In Dustmentioning

confidence: 99%

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Radiological health risk assessment of drinking water and soil dust from Gauteng and North West Provinces, in South Africa

Madzunya

Dudu

Mathuthu

et al. 2020

Heliyon

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Long-lived natural radionuclides such as ( 238 U) uranium-238, ( 232 Th) thorium-232, ( 226 Ra) radium-226 and ( 40 K) potassium-40 and heavy metals are normally exposed to the surface during mining activities. They enter the human body when inhaled (as dust) or ingested (by drinking contaminated water). An intake of large concentrations of these radionuclides and heavy metals can lead to health effects such as development of cancers. The aim of this work was to assess the radiological health risk due to intake of radionuclides in dust and drinking water from the West Rand gold mining area and Modiri Molema Municipality (MMM) water treatment plant. The dust samples were analyzed for radionuclides of interest using the well-type high purity Germanium detector. Water samples were collected before and after purification from the Modiri Molema Municipality water treatment plant and analyzed using the ultra-low level Liquid Scintillation Counter (LSC), to evaluate the gross alpha and beta radioactivity dose levels of the radionuclides in water. An Inductively Coupled Plasma Mass Spectrometry (ICP-MS) was used to evaluate the heavy metal concentrations in the drinking water after purification at the treatment plant. The total inhalation effective dose obtained in this study was (2.71 Â 10 À1 and 1.31 Â 10 À1 ) μSv.y À1 for adults and infants respectively, which is below the prescribed dose range of 5-10 μSv.y À1 . The mean activity concentrations of the radionuclides in air dust were found to be; 226 Ra, (2.14 AE 0.82) Â 10 À6 (Bq.m À3 ), 238 U (6.08 AE 2.17) Â 10 À7 (Bq.m À3 ) and 232 Th (2.65 AE 1.1) Â 10 À7 (Bq.m À3 ). The activity concentration of 226 Ra obtained exceeded the world average by 2 times. The Ra eq , the external hazard (H ex ) and internal hazard (H in ) indices were calculated and the values obtained from soil were lower than the world average. However, the absorbed dose rate in air was higher than the world averages of 60 nGyh -1 . The minimum and maximum gross alpha activity obtained was 0.0041 (Bq.L À1 ) and 0.0053 (Bq.L À1 ) respectively, while the minimum and maximum gross beta activity obtained for water samples was 0.0083 (Bq.L À1 ) and 0.0105 (Bq.L À1 ) respectively. More heavy metals were detected in the first two stages of the water treatment than on the last two stages, nevertheless, their concentrations did not exceed recommended limits. The results for soil dust indicates that the windward areas might pose health risks for human population staying in the area and the activity concentration for drinking water indicate that the specific activity in the water supply after purification is below the WHO guideline limit of 0.5 (Bq.L À1 ) for gross alpha and 1 (Bq.L À1 ) for gross beta. The results obtained were also within the range of the South Africa Department of Water Affairs and Forestry target water quality limit of (0-1.38) (Bq.L À1 ) for gross beta activity. Heavy metals concentrations in drinking water did not exceed the stipulated limits by USEPA and DWAF. Therefore, this water after...

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Section: Discussioncontrasting

confidence: 54%

Section: Discussionmentioning

confidence: 55%

“…The annual effective dose from inhalation E inh (Sv.y À1 ) is calculated using the equation (Corrigall, 2004;Han and Park, 2018);…”

Section: Irradiation From Inhaled Radionuclidesmentioning

confidence: 99%

Section: Activity Concentrations Of Radionuclides In Dustmentioning

confidence: 99%

See 2 more Smart Citations

Radiological health risk assessment of drinking water and soil dust from Gauteng and North West Provinces, in South Africa

Madzunya

Dudu

Mathuthu

et al. 2020

Heliyon

View full text Add to dashboard Cite

show abstract

“…People are also exposed to anthropogenically produced radioisotopes such as used in nuclear medicine, residuals from atmospheric weapons tests, and from disasters like Chernobyl and Fukashima (Ajithra et al 2017). Chernobyl and Fukushima released radioactivity producing worldwide radionuclide contamination in addition to the nuclear weapons testing in the atmosphere upto 1963 and from some subsequent venting of underground tests (Han and Park 2018;Jia et al 2005). Greater than half of total radioactive dose is associated with inhaled radioactivity associated with airborne particulate matter of different sizes (Sahin et al 2017;Tabar et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Characterization of radionuclide activity concentrations and lifetime cancer risk due to particulate matter in the Singrauli Coalfield, India

Yadav

Hopke

2020

Environ Monit Assess

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In this study, the activities of 40 K, 210 Pb, 232 Th, 234 U, 235 U, and 238 U in size-segregated particulate matter (PM) were measured in the Singrauli Coalfield, India. Different isotopic compositions were found relative to natural uranium ratios. The radioactivity concentration ratios in different PM sizes [PM 2.5 , PM 10 , and suspended particulate matter (SPM)] suggested that anthropogenic sources affected the uranium isotopic compositions in the area. A different isotopic composition from the natural uranium composition was found. The correlation coefficients between the measured isotopes (40 K, 210 Pb, 232 Th, 234 U, 235 U, and 238 U) and meteorological factors were calculated. PM emissions were affected by the meteorological conditions, which in turn, influenced the U and Th concentrations in PM. The 232 Th/ 238 U activity ratio in particulate matter was between 0.20 and 1.54 with an average value of 0.9 ± 0.5, 0.2 to 1.1 (0.8 ± 0.7), and 0.2 to 1.2 with an average value of 0.8 ± 0.8 in PM 2.5 , PM 10 , and SPM, respectively. These range were quite different from the average crustal ratio of 3.5, indicating that the 238 U concentrations were elevated in this region relative to Th. However, compared with Th, the dose contribution of U to the public was negligible. The average effective dose in public owing to inhalation of natural radioactive 40 K, 210 Pb, 232 Th, and 234 U, 235 U, and 238 U in the atmosphere was between 0.03 and 327 nSv year −1. These doses associated with the inhalation of particulate matter were lower than world airborne reference value as reported by UNSCEAR (2000a).

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Amelioration of radiation-induced liver damage by p-coumaric acid in mice

Qian

et al. 2022

Food Sci Biotechnol

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Radiation-induced liver damage (RILD) is a spiny problem in radiotherapy or other circumstances that exposure to radiation. The need for radioprotective agent is increasing to protect liver tissue. This study aimed to explore the hepatoprotective effect of p-coumaric acid (CA) against RILD. C57BL/6 male mice were exposed to 4 Gy irradiation and administrated with CA for 4 days starting on the same day of irradiation. Mice were sacrificed to obtain blood and liver tissues on day 3.5 or 14 post irradiation, respectively. The blood and liver tissues were collected. As compared with the only irradiated group, CA supplementation improved liver morphology, decreased serum alanine aminotransferase and aspartate aminotransferase, inhibited BCL2-associated X (BAX) protein expression, and improved the mice hematopoietic function. CA at the dose of 100 mg/kg body weight showed better effect compared to the other doses. Thus, CA might possess potential to protect against RILD.

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Analysis of the natural radioactivity concentrations of the fine dust samples in Jeju Island, Korea and the annual effective radiation dose by inhalation

Cited by 13 publications

References 19 publications

Radiological health risk assessment of drinking water and soil dust from Gauteng and North West Provinces, in South Africa

Radiological health risk assessment of drinking water and soil dust from Gauteng and North West Provinces, in South Africa

Characterization of radionuclide activity concentrations and lifetime cancer risk due to particulate matter in the Singrauli Coalfield, India

Amelioration of radiation-induced liver damage by p-coumaric acid in mice

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