Probabilistic Risk of Nitrates to Human Health Via Drinking Water: A Case Study of Water Supply for Dandan Station and its Quarters in Mosul, Iraq

Zahraa Anmar Mohtfer, Abdulazeez Younis. T. Al-Saffawi
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引用次数: 1

Abstract

Background: The primary objective of this study was to assess the nitrate ion concentration in drinking water and determine the potential health risks associated with nitrate contamination for humans. Methods: A total of 100 water samples were collected from ten sites, including the Dandan water supply station and adjacent residential neighborhoods on the right side of Mosul city between September 2021 and February 2022. Results: The results of the study revealed that the concentration of nitrate ions ranged between (0.95-3.614 mg/L). Based on the study’s results, all of the analyzed water samples fell within the international drinking water quality standards set by the World Health Organization. The concentrations of nitrate ions corresponded to low values of both chronic daily intake (CDI) and hazard quotient (HQ or QI), which ranged from 0.05162 to 0.18164 mg/kg/day and 0.03226 to 0.11357, respectively. Consequently, the hazard index (HI) for this study remained within safe limits for drinking water. The study also revealed that infants and individuals within the age group of 21 and older were the most susceptible to potential nitrate-related health risks, while the age group of 16 to 18 exhibited the lowest susceptibility to such risks. Conclusion: The study recommends the use of examined water for drinking due to its safe and healthy nitrate ion concentration. It further suggests the continuation of periodic assessments of drinking water supply stations to ensure ongoing consumer safety, as no potential health risks, including cancerous and non-cancerous risks, were identified.
硝酸盐通过饮用水对人类健康造成的概率风险:伊拉克摩苏尔丹丹车站及其宿舍供水案例研究
背景:本研究的主要目的是评估饮用水中的硝酸盐离子浓度,并确定硝酸盐污染对人类健康的潜在风险。研究方法2021 年 9 月至 2022 年 2 月期间,从摩苏尔市右侧的丹丹供水站和邻近居民区等 10 个地点共采集了 100 份水样。研究结果研究结果显示,硝酸根离子的浓度介于(0.95-3.614 毫克/升)之间。根据研究结果,所有分析水样均符合世界卫生组织规定的国际饮用水质量标准。硝酸根离子浓度对应的慢性日摄入量(CDI)和危害商数(HQ 或 QI)值都较低,分别为 0.05162 至 0.18164 毫克/千克/天和 0.03226 至 0.11357。因此,这项研究的危害指数(HI)仍在饮用水的安全范围之内。研究还显示,婴儿和 21 岁及以上年龄组的人最容易受到与硝酸盐有关的潜在健康风险的影响,而 16 至 18 岁年龄组的人对此类风险的易感性最低。结论这项研究建议使用经过检验的饮用水,因为其硝酸盐离子浓度安全健康。由于没有发现潜在的健康风险,包括致癌和非致癌风险,研究还建议继续对饮用水供应站进行定期评估,以确保消费者的持续安全。
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