Natural radioactivity in sachet drinking water produced in Ibadan, Oyo State, Nigeria
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Summary
This summary is machine-generated.Natural radioactivity in sachet water in Nigeria poses potential health risks. Some brands exceed recommended limits, indicating possible radiological hazards from consumption.
Area Of Science
- Environmental Science
- Radiological Health
- Public Health
Background
- Sachet water is a common water source in many regions, including Nigeria.
- Assessing the natural radioactivity in drinking water is crucial for public health.
- Previous studies have indicated varying levels of radioactivity in water sources globally.
Purpose Of The Study
- To analyze the natural radioactivity levels in 20 brands of sachet water from Ibadan, Oyo State, Nigeria.
- To determine the associated annual effective dose for different age groups.
- To compare the findings with international safety standards and guidelines.
Main Methods
- Utilized sodium iodide-thallium (NaI(Tl)) gamma spectroscopy for accurate measurement.
- Calibrated equipment ensured reliable and precise radioactivity concentration data.
- Calculated annual effective dose based on consumption patterns and international dose conversion factors.
Main Results
- Activity concentrations for Thorium-232 (<sup>232</sup>Th) ranged from 0.41±0.05 to 8.78±0.97 BqL⁻¹.
- Potassium-40 (<sup>40</sup>K) activity concentrations varied from 4.29±0.4 to 37.48±2.51 BqL⁻¹.
- Radium-226 (<sup>226</sup>Ra) was below detection levels; however, calculated annual effective doses in some cases exceeded UNSCEAR, WHO, and ICRP recommended limits.
Conclusions
- Consumption of some analyzed sachet water brands may pose radiological risks due to elevated radioactivity levels.
- Findings highlight the need for regulatory oversight and quality control of sachet water production.
- Further research into the sources of radioactivity and long-term health impacts is recommended.
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