A study into the long-overlooked carcinogenic radon in bottled water and deep well water in Dhaka, Bangladesh

Mahmud, Jubair Al; Siraz, M. M. Mahfuz; Alam, Mohammad Samsul; Das, Sudeb Chandra; Bradley, D.A.; Khandaker, Mayeen Uddin; Tokonami, Shinji; Shelley, Afroza; Yeasmin, Selina

doi:10.1080/03067319.2022.2163895

Cited by 18 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The absorbed dose ranges from 0.00-0.536 mGy/y, the equivalent dose ranges from 0.00-10.72 mSv/y while the annual effective dose ranges from 0.00-1.286 mSv/y. The estimated parameters obtained in this study is comparable with other past studies [16,17]. In Japan, the average annual effective dose by inhalation was reported as 0.64 mSv/y [17].…”

Section: Resultssupporting

confidence: 90%

Radon Concentration Level in Selected offices at Bells University of Technology, Ota, Ogun State

Soyinka,

Usikalu

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

Radon, a radioactive gas that emanates naturally from the earth crust is accountable for about 50% of the effective dose of ionizing radiation received by humans. Most radon susceptiveness occurs in homes and work places, it comes from the natural disintegration of uranium in soil, rock and water and escalate to the air that we breath, hence it is important to monitor the actual level of exposure in most buildings. This work analysed the indoor radon concentration in air at twenty different offices of different building at Bells University of Technology using Rad7 detector. The mean measured radon concentration ranges from 0-56.7 Bq/m3 for all the study locations. The mean absorbed dose, equivalent dose and effective dose were calculated with the radon concentration which are 0.152 mGy/y, 3.045 mSv/y and 0.365 mSv/y respectively. The results obtained are below the world set limit as recommended by International Commission on radiological protection, except for office 7 which slightly exceed the recommended limit. Thus, the study concluded that good ventilation is very important in the reduction of radon concentration level in our work places.

show abstract

Section: Resultssupporting

confidence: 90%

Radon Concentration Level in Selected offices at Bells University of Technology, Ota, Ogun State

Soyinka,

Usikalu

2024

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

show abstract

“…The radon activity concentrations, as presented in Table The mean radon concentrations obtained in this study are slightly higher than those obtained by [6] in China, [26] in Turkey, [8] in Iraq and [9] in Katsina, Nigeria, as shown in Table 2. [12,7,2] reported radon mean concentrations greater than the obtained value in this study. The explanation for this low amount of radon in bottled water can be linked to the processing method employed by the bottled water factories, because radon gas is easily emitted when groundwater is agitated.…”

Section: Radon Concentrationcontrasting

confidence: 71%

“…The electronic detector employs the alpha spectrometry method with a bubbling kit. Alpha spectrometry method using RAD7 has widely been used by [5,7,8,2,12]. It can precisely assess the radon levels in a water sample in 20 minutes.…”

Section: Radon Measurement Using Rad7mentioning

confidence: 99%

“…Despite bottled mineral water not posing a significant health risk to the public, study results showed radon levels were strongly correlated with its total dissolved solids and calcium concentration. Recently, with the RAD7 Radon monitoring system, [7] measured radon levels in commercial bottled water and deep well water samples, finding results that were significantly lower than USEPA and WHO recommendations. [2] determined the radon concentrations present in seventeen brands of sachet and bottled water packaged in Ile-Ife, South West Nigeria.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Age-dependent Radiological Risk Assessment of Radon (222Rn) in Samples of Commercial Bottled Water from Benin City, Nigeria

Popoola,

David,

Owoyemi

et al. 2023

AJOPACS

View full text Add to dashboard Cite

Radon inhalation as well as ingestion through the use of water has a high potential of causing serious harm to sensitive cells and organs of the body when absorbed into the bloodstream. Therefore, this study aimed to assess the radiological health damage caused by radon in drinking bottled water available in Benin City, Edo State, Nigeria. Radon concentration was measured using a RAD7 electronic radon detector. The mean activity concentration radon is 137.18 ± 0.25 mBq/L. This mean value is slightly higher than 0.1 Bq/L recommended by the Standard Organisation of Nigeria but lower than the maximum contaminant level (MCL) of 11.1 Bq/L set by the United States Environmental Protection Agency and 100 Bq/L set by the World Health Organisation (WHO) for consumption of radon in drinking water. The mean total annual effective dose is 1.07±1.91 (\(\mu\)Sv/y) for infants, 0.61±1.09 (\(\mu\)Sv/y) for children, and 0.70±1.24 (\(\mu\)Sv/y) for adults. The computed annual effective dose to the public by inhalation and ingestion radon through the use of bottled water in the study areas are lower than the 0.1 mSv/y limit recommended by WHO. The estimated average for the age group excess lifetime cancer risk are 3.21 ± 5.71, 1.836 ± 3.26, 2.086 ± 3.71 (x 10-6) for infants, children and adults respectively. These values are below the world average permissible levels. Hence, consumption of the water examined poses no serious health risk to consumers.

show abstract

Evaluation of transfer factors of 226Ra, 232Th, and 40K radionuclides from soil to grass and mango in the northern region of Bangladesh

Siraz

Das

Mondol

et al. 2023

Environ Monit Assess

View full text Add to dashboard Cite

A study into the long-overlooked carcinogenic radon in bottled water and deep well water in Dhaka, Bangladesh

Cited by 18 publications

References 30 publications

Radon Concentration Level in Selected offices at Bells University of Technology, Ota, Ogun State

Radon Concentration Level in Selected offices at Bells University of Technology, Ota, Ogun State

Age-dependent Radiological Risk Assessment of Radon (222Rn) in Samples of Commercial Bottled Water from Benin City, Nigeria

Evaluation of transfer factors of 226Ra, 232Th, and 40K radionuclides from soil to grass and mango in the northern region of Bangladesh

Contact Info

Product

Resources

About