Assessment of Radon Concentration and Impact on Human Health in a Region Dominated by Abandoned Gold Mine Tailings Dams: A Case from the West Rand Region, South Africa

Moshupya,; Abiye, Tamiru; Mouri,; Levin, Levin; Strauss, Maximilian T.; Strydom,

doi:10.3390/geosciences9110466

Cited by 29 publications

(8 citation statements)

References 34 publications

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“…Indoor radon concentration values can vary on daily basis, depending on several factors: thermo-hygrometric conditions, time of season, soil types, strength of the radon source in the underlying bedrock, pressure changes created by the building as well as level of ventilation and occupancy itself also contribute significantly [6][7][8][9][10][11]. Since indoor radon concentrations vary with diurnal and seasonal variations, we consider these when performing short-term radon measurements.…”

Section: Resultsmentioning

confidence: 99%

Short-Term Measurement of Indoor Radon Concentration in Northern Croatia

Siročić¹,

Stanko²,

Sakač³

et al. 2020

Applied Sciences

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(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.

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Section: Resultsmentioning

confidence: 99%

Short-Term Measurement of Indoor Radon Concentration in Northern Croatia

Siročić¹,

Stanko²,

Sakač³

et al. 2020

Applied Sciences

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“…As evidenced in this research, it is also important to state and recognize that radiation is a weak mutagen and its effects are extremely small to quantify, mainly in humans [37], with the note that individual genes behave differently in response to radiation exposure [38]. On the other hand, as warranted, many published data have demonstrated the potential of radon exposure and its progeny of short-lived nuclides which are found in soils and rocks to induce a significant public health risk [18], [39]. Given these above considerations, this study was conducted to quantify the MN, NPB, and NBUD levels to determine their association with cytogenetic abnormalities and radiation exposure level.…”

Section: Table III Poisson Regression Analysis Of Gender and Age On T...mentioning

confidence: 99%

The Evaluation of Frequencies of Cytogenetic Biomarkers in Lymphocyte of Residents from High Natural Radiation Area in West Sulawesi, Indonesia

Syaifudin¹,

Ramadhani²,

Purnami³

et al. 2022

International Journal on Advanced Science, Engineering and Information Technology

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Residents living in high natural radiation areas may pose health consequences such as cancer. The study aims to evaluate the frequencies of cytogenetic biomarkers covering micronuclei (MN), nucleoplasmic bridge (NPB), and nuclear bud (NBUD) with the cytokinesis-block micronucleus (CBMN) assay. This cross-sectional study was done on 51 blood lymphocytes from the resident of Mamuju, West Sulawesi, Indonesia that was done according to standard procedure. After being stained with Giemsa solution, these biomarkers were observed on about 1,000 binucleated cells. The results showed a low frequency of MN (0.0162 in 36,091 cells) and extremely low frequencies of other biomarkers (0.00019 and 0.00061 for NPB and NBUD, respectively) in the study area, whereas these were 0.0225 MNs in 15,000 cells, and 0.00013 and 0.00120 for NPB and NBUD, respectively, in the control area. MNs and NBUDs were lower in the study area compared to control. No statistically significant differences (p>0.05) in NPB were found between the two areas, but not for NBUD. The frequencies of MN and NPB in female is higher than that of male in both areas. In the control group, males experienced a decrease in the number of NPB to 0.7 times compared to females, and every extra one year of age, 1.047 times more NBUDs were found. None of the confounding factors was influenced in the study group. It was concluded that there is no impact of high natural radiation to the local residents based on cytogenetics evaluation, with a note that further studies on a higher number of samples and other relevant biomarkers are required.

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“…Finally, through the study of iron, copper, phosphorus, manganese, tungsten, tin, and hematite mines, the results of radon concentrations and doses were used to investigate the possible health effects of radon exposure for the wider community that is associated with the processing of these ores. Measurements were also made on a personal level for each employee individually, considering the time devoted to each job [5][6][7].…”

Section: Other Minesmentioning

confidence: 99%

Distribution of Radon Concentrations in Active and Inactive Underground Mines: A Literature Review

Asimakou

Vafeidis

Manoutsoglou

2021

International Conference on Raw Materials and Circular Economy

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Radon (Rn), a natural colorless, odorless, noble radioactive gas, with a half-life of 3.8 days, is an important source of natural ionizing radiation. It originates from the initial concentrations of uranium and its transmuted daughters in rocks, soil, and finally, waters and tends to be concentrated in closed spaces such as underground mines. The concentration of radon in mines contributes significantly to the increase in the dose of ionizing radiation received by humans visiting, accessing, working in these areas. The comparison of radon concentration in active and inactive mining sites, its effect on human health, and the different concentrations’ upper limits, applicable by state, are discussed in this paper.

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Assessment of Radon Concentration and Impact on Human Health in a Region Dominated by Abandoned Gold Mine Tailings Dams: A Case from the West Rand Region, South Africa

Cited by 29 publications

References 34 publications

Short-Term Measurement of Indoor Radon Concentration in Northern Croatia

Short-Term Measurement of Indoor Radon Concentration in Northern Croatia

The Evaluation of Frequencies of Cytogenetic Biomarkers in Lymphocyte of Residents from High Natural Radiation Area in West Sulawesi, Indonesia

Distribution of Radon Concentrations in Active and Inactive Underground Mines: A Literature Review

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