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This is a Quantitative Study study.

Radon levels in Groundwater from a uranium Rich District in Southern Tanzania

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Water samples from 39 sources in Namtumbo District reveal radon levels exceeding USEPA guidelines, indicating potential health risks.

Radon concentrations ranged from 0.2 to 86 BqL−1 in various water sources, showing significant variability.
Approximately 42% of samples surpassed the USEPA action level of 11.1 BqL−1, suggesting possible health risks.
Mean annual effective doses for ingestion and inhalation were 26.4 and 26.1 μSvy−1, respectively, indicating potential exposure.
Total effective doses were below WHO's reference level of 100 μSvy−1, but caution is advised due to high radon levels.

A 2025 study studied this question.

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View Full Paper

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Water samples from 39 sources in Namtumbo District reveal radon levels exceeding USEPA guidelines, indicating potential health risks.

Radon concentrations ranged from 0.2 to 86 BqL−1 in various water sources, showing significant variability.
Approximately 42% of samples surpassed the USEPA action level of 11.1 BqL−1, suggesting possible health risks.
Mean annual effective doses for ingestion and inhalation were 26.4 and 26.1 μSvy−1, respectively, indicating potential exposure.
Total effective doses were below WHO's reference level of 100 μSvy−1, but caution is advised due to high radon levels.

A 2025 study studied this question.

View Full Paper

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