|
|
 |
| |
|
|
|
Evaluation of Ingestion doses and Hazard Quotients due to Intake of Uranium in tap Drinking Water from Aden Governorate, Yemen |
|
|
|
PP: 69-76 |
|
|
|
doi:10.18576/jrna/090111
|
|
|
|
Author(s) |
|
|
|
Fuad Abdo AS-Subaihi,
Abdulazize Omer Bazohair,
|
|
|
|
Abstract |
|
|
| In the current study, Uranium concentrations were measured in tap water samples collected from selected regions in Aden governorate using high purity germanium detector (HPGe).The results of this experimental investigation showed that the Uranium concentration in tap water samples were found to range from (8.58±0.964 to 124.12±13.94)μg/L with mean value of (64.48±6.96)μg/L. We found that Uranium concentrations in 8 out of 10 (80%) samples exceeded the WHO provisional guideline value of 30μgL-1. The annual effective doses were estimated for different life stage groups. The highest dose was calculated for teenagers (14-18y) male. From radiological perspective, the mean cancer mortality risk and morbidity risk were found to be 0.89×10-4 and 3.8×10-4 respectively, which are lower than permissible standard which is 1×10-3. The lifetime average daily dose (LADD) was found to range from (0.632 to 9.14)μg/kg/day with mean value of 4.56μg/kg/day. The mean value of LADD for the tap drinking water samples is 3.8times higher than the accepted international threshold daily intake value of 1.2μg/kg/day reported by World Health Organization. The Hazard quotient (HQ) was greater than unity, implying significant potential risk of uranium in tap drinking water due to chemical toxicity. All the recorded values of Uranium are compared with the safe limits recommended for tap drinking water by various health and environmental protection agencies. |
|
|
|
|
|
|
|
