Ur Rehman Habib, Ahmed Saeed, Ur Rahman Mujeeb, Mehmood Muhammad Sajid
School of Chemistry and Material Science, Northwest University, Xian, 710027, China.
Pakistan Council of Research in Water Resources, Main Raiwind Road, Lahore, Pakistan.
Environ Sci Pollut Res Int. 2022 Jul;29(33):49796-49807. doi: 10.1007/s11356-022-19405-6. Epub 2022 Feb 26.
The purpose of this study is to evaluate the arsenic concentration and related health risks in groundwater extracted from tube wells. The physicochemical parameters, including arsenic (As), were investigated using standard procedures. The parameters were found within the permissible limits except for arsenic, which was 78 µg/L. Unfortunately, 82% of the collected water samples were found contaminated with arsenic and exceeded the permissible limit set by the world health organization (10 µg/L). The water intake and its relationship between arsenic concentration, time, and induced symptoms in the study area residents were observed. Skin pigmentation, skin irritation, and numbness of the body were recognized as the major symptoms, and these symptoms were significantly correlated with p-value ˂ 0.05. In comparison, individuals who intake As-contaminated water (> 50 µg/L) for a duration of > 20 years show severe symptoms. Furthermore, health risk assessment associated with arsenic in terms of chronic daily intake (CRI), hazard quotient (HQ), and cancer risk assessment probability (CR) in groundwater was also studied. The HQ of arsenic was 7.46, and the CR value of As on Ravi road was as high as 0.00149, which indicates a possibility of cancer risk in the community Ravi road, Lahore. Based on the findings, the study area needs special monitoring and management of groundwater to reduce health risks associated with contaminated drinking water. Moreover, suitable remediation methods for removing arsenic should be adopted to avoid arsenic exposure and related health risks.
本研究的目的是评估从管井抽取的地下水中的砷浓度及相关健康风险。使用标准程序对包括砷（As）在内的理化参数进行了调查。除砷含量为78微克/升外，其他参数均在允许范围内。不幸的是，发现82%的采集水样被砷污染，超过了世界卫生组织设定的允许限值（10微克/升）。观察了研究区域居民的饮水量及其与砷浓度、时间和诱发症状之间的关系。皮肤色素沉着、皮肤刺激和身体麻木被确认为主要症状，这些症状与p值˂0.05显著相关。相比之下，摄入砷污染水（>50微克/升）持续超过20年的个体表现出严重症状。此外，还研究了地下水中砷在慢性每日摄入量（CRI）、危害商数（HQ）和癌症风险评估概率（CR）方面的健康风险评估。砷的HQ为7.46，拉维路的砷CR值高达0.00149，这表明拉合尔市拉维路社区存在癌症风险。基于这些发现，研究区域需要对地下水进行特殊监测和管理，以降低与受污染饮用水相关的健康风险。此外，应采用合适的砷去除修复方法，以避免砷暴露及相关健康风险。
