Abstract
Since phosphate contains uranium, workers in phosphate mines may be expected to be exposed to radioactive elements from this source. Uranium is concentrated in three main areas in the body: bone, liver and kidney. The author chose three carriers of uranium, blood, urine and hair to study the relationship between uranium concentration and the number of working years spent in the mine. Uranium was measured in samples from workers and their families by fluorimetry. The quenching effect of blood, urine and hair on uranium standards was determined. The results show that uranium concentrations (in blood) increase with the number of working years in the mine. In addition, it has also been determined that uranium concentrations in blood samples of families living near the mine are higher than those in families living in Damascus city. Finally, it has been found that hair is not a good biological indicator for this type of study.
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