Assessment of radon concentration in groundwater within Ogbomoso, SW Nigeria

Oni, Emmanuel Abiodun; Adagunodo, T. A.

doi:10.1088/1742-6596/1299/1/012098

Cited by 4 publications

(3 citation statements)

References 25 publications

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“…This study reviewed twenty (20) journals on concentration of radon in water sources (groundwater and surface water precisely). The maximum average value of radon concentration was 88.0Bq L -1 which was found in water samples from the Dutse Local Government Area of Jigawa State, as recorded by Dankawu et al (2021), while the minimum value of radon concentration was 1.9Bq L -1 which was found in the water samples from Ogbomoso, Oyo State, as recorded by Oni et al (2019). All the twenty (20) journals reviewed recorded average values of radon concentration below the safe limit of 100Bq L -1 recommended limit by WHO, whereas five (5) journals recorded average values of radon below and fifteen (15) journals recorded average values of radon concentration above 11.1Bq L -1 limit recommended by US EPA.…”

Section: Resultsmentioning

confidence: 86%

“…The AED due to radon ingestion in the groundwater varied between 0.00386mSv yr -1 and 0.03744mSv yr -1 with an average value of 0.01706mSv yr -1 , within the safe limit. Oni et al (2019) analyzed the concentration of radon gas in Ogbomoso, Oyo State using RAD7. Thirty (30) water samples were evaluated and the RnC is within the range of 0.6±0.4Bq L -1 and 2.6±0.8Bq L -1 with a mean value of 1.9±0.7Bq L -1 , while the AED due to radon ingestion ranged between 6.25×10 -3 mSv yr -1 and 1.93×10 -2 mSv yr -1 , with an average value of 0.02mSv yr -1 .…”

Section: Resultsmentioning

confidence: 99%

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A Review of Radon Concentration in Water Sources in Nigeria and its Impact

Bashir,

Kanu, F. C.,

Suleiman, I. K.

2023

USci

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Given the characteristics of radon, people may unwittingly be exposed to radon through water ingestion. Research on radon concentration has increased over the years due to its negative impact on the body being the major causes of lung cancer. This study reviewed twenty (20) journal publications on radon concentration in water sources (such as well, boreholes, stream and taps) in Nigeria from year the 2016 to 2023. The type of sample, sample location, devices used, the range and mean values of radon concentration (RnC) and annual effective dose (AED) were considered. From the reviewed journals, the average values of RnC ranged from 1.9 Bq/L to 88.0 Bq L-1. When compared with WHO and US EPA recommended limits of 100 Bq L-1 and 11.1 Bq L-1 respectively, all reviewed journals recorded average values of RnC below 100 Bq L-1 and 75 % of the reviewed journals recorded average values of RnC above US EPA recommended limit of 11.1 Bq L-1. The mean AED reported is within the range of 0.02 mSv yr-1 and 92 mSv yr-1 with 30 % above the recommended limit of 0.1mSv yr-1. This result shows that the majority of the radon concentration in water sources in Nigeria reported may not pose any immediate health risk. However, there is a need for continuous monitoring and protective measures to be taken.

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Section: Resultsmentioning

confidence: 86%

Section: Resultsmentioning

confidence: 99%

A Review of Radon Concentration in Water Sources in Nigeria and its Impact

Bashir,

Kanu, F. C.,

Suleiman, I. K.

2023

USci

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“…The radon concentration levels in all 12 samples, the annual effective doses for ingestion in infants, children, and adults, and the annual effective dose for inhalation in adults are shown in Table 3. The radon concentration in the water samples collected across the selected wells and boreholes ranged from 5.36 ± 0.22 BqL -1 to 0.52 ± 0.06 BqL -1 with an average concentration of 2.82 ± 0. range of 2.64 ± 0.80 BqL -1 to 0.60 ± 0.37 BqL -1 obtained for drinking water samples of Ogbomosho, Southwestern Nigeria (Oni & Adagunodo, 2019). However, the obtained concentration levels are relatively low in contrast to some of the values in the range of 2.1 ± 0.7 BqL -1 to 27.9 ± 2.5 BqL -1 and 2.8 ± 1.1 BqL -1 to 39.5 ± 1.5 BqL -1 that was obtained respectively for open well and borehole groundwater samples of the Bosso community, North-Central Nigeria (Kolo et al, 2023).…”

Section: Radon Concentrationmentioning

confidence: 86%

Radon Levels and Risk Assessment due to its Ingestion and Inhalation from Groundwater of Lapai, North-Central Nigeria

Umar,

Asuku,

Muhammad

et al. 2024

USci

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Radon exposure through ingestion or inhalation from groundwater can be a significant public health concern due to its carcinogenic effects. This study assessed the health risks of radon exposure from groundwater in Lapai, Nigeria, using a Rad7 detector to measure radon concentration levels. The measured concentrations ranged from 5.36 ± 0.22 BqL-1 to 0.52 ± 0.06 BqL-1 with an average value of 2.82 ± 0.14 BqL-1. The annual effect dose due to ingestion of Radon obtained varies in the range of 2.76 to 28.34 μSva-1, 1.02 to 10.43 μSva-1, and 1.33 to 13.69 μSva-1 for infants, children, and adults, respectively. While the effective dose per year from inhalation of Radon released from water by adults has values in the range of 1.31 to 13.50 μSva-1. Radon levels were within permissible limits of UNSCEAR and USEPA, and the annual effective doses from inhalation and ingestion were within WHO's safe range. Nonetheless, monitoring is advised, especially during the rainy season when contamination levels may increase.

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Annual effective dose from 222Rn in groundwater of a Nigeria University campus area

et al. 2021

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Radon, the heaviest among the noble gases in the periodic table of element is a radioactive nuclide that is naturally available in rocks, soil and water. It has become the subject of many research efforts in recent years due to its leading role in causing cancer. In this study, a total of 68 groundwater samples were collected and assayed using alpha spectrometry with RAD7 radon detector with RAD-H2O accessories manufactured by Durridge CO (USA). The 222Rn concentration measured were in the range of 0.6–36.2 Bq L−1 with an average of 13.33 Bq L−1, 7.0–41.5 Bq L−1 with mean value 23.3 Bq L−1 and 0.6–27.4 Bq L−1 with an average value of 7.4 Bq L−1 for hand dug wells (HDW), hand pumped boreholes (HPB) and motorized boreholes (MBH), respectively. About 54, 86 and 15% of samples from the HDW, HPB and MBH, respectively, exceeded the parametric reference level of 11.1 Bq L−1 suggested by United State of America Environmental Protection Agency but lower than the permissible limit of 100 Bq L−1 by World Health Organization (WHO) and European Union. The average annual effective doses resulting from inhalation and ingestion of radon in water obtained for the three groundwater sources are less than recommended limits by WHO and ICRP. The data obtained from this study are comparable with similar studies conducted in Nigeria and other parts of the world as reported in literature. Continuous radon monitoring in drinking water and indoor environment is however recommended for the study area.

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Assessment of radon concentration in groundwater within Ogbomoso, SW Nigeria

Cited by 4 publications

References 25 publications

A Review of Radon Concentration in Water Sources in Nigeria and its Impact

A Review of Radon Concentration in Water Sources in Nigeria and its Impact

Radon Levels and Risk Assessment due to its Ingestion and Inhalation from Groundwater of Lapai, North-Central Nigeria

Annual effective dose from 222Rn in groundwater of a Nigeria University campus area

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