Analysis of Radionuclide Concentrations in Water Samples From Selected Bore-Holes in Arua City, Northern Uganda
Access to safe drinking water is essential for public health. In Arua City, Northern Uganda, boreholes serve as a primary water source, but their safety may be compromised by radionuclide contamination. This study analyzed gamma-ray-emitting radionuclides (²²⁶Ra, ²³²Th, and ⁴⁰K) in borehole water sa...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SAGE Publishing
2025-05-01
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| Series: | Environmental Health Insights |
| Online Access: | https://doi.org/10.1177/11786302251339260 |
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| Summary: | Access to safe drinking water is essential for public health. In Arua City, Northern Uganda, boreholes serve as a primary water source, but their safety may be compromised by radionuclide contamination. This study analyzed gamma-ray-emitting radionuclides (²²⁶Ra, ²³²Th, and ⁴⁰K) in borehole water samples from Ayivu East, Ayivu West, and Arua City Central using gamma spectrometry. Eighteen samples from 6 boreholes per division were assessed against UNSCEAR global averages. Results showed high variability in radionuclide concentrations. Several boreholes, particularly on Arua Hill’s slopes, had ²²⁶Ra levels exceeding the global average of 35 Bq/L, while ²³²Th remained below 30 Bq/L in all samples. ⁴⁰K concentrations surpassed the global average of 400 Bq/L in all divisions. Absorbed dose rates in some boreholes exceeded 57 nGy/h, though annual effective doses remained below 0.41 mSv/y. Hazard indices in specific boreholes suggested health risks. The study recommends regular monitoring, geological assessments, safe drilling, public awareness, and water treatment to ensure water safety and protect public health. |
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| ISSN: | 1178-6302 |