一个GIS方法用于用方法评估地下水质量和化物暴露与健康风险评估
Aftab Alam1, Amit Kumar2, Anshuman Singh2
1Department of Civil Engineering, National Institute of Technology Patna, Patna, Bihar, 800005, India. aftaba.phd19.ce@nitp.ac.in.
Environmental geochemistry and health
|January 16, 2024
概括
比哈尔州纳瓦达的地下水中含有大量化物,化物和硬度,造成非致癌风险,尤其是对儿童. 大多数样本是可饮用的,但有些地区的水质不佳,需要管理.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 公共卫生 公共卫生
背景情况:
- 地下水质量对人类消费和健康至关重要.
- 评估物理化学参数和相关的健康风险对于水资源管理至关重要.
- 饮用水中的化物污染是全球重要的健康问题.
研究的目的:
- 利用水质量指数 (EWQI) 分析比哈尔邦纳瓦达的地下水适合人类消费的情况.
- 为不同的人口群体确定与地下水污染物,特别是化物相关的非致癌健康风险.
- 提供数据,以便在区域地下水质量管理方面做出明智的决策.
主要方法:
- 在2017年季风前期间,收集和分析了75个地下水样本以检测其物理化学特征.
- 应用水质量指数 (EWQI) 来评估饮用水的适用性.
- 化物危害指数 (HQ) 的计算,以评估儿童,妇女和男性的非致癌健康风险.
主要成果:
- 地下水以Ca2+和HCO3-离子为主;化物,化物和硬度水平超过安全标准.
- 79%的地下水样本被EWQI认为是可饮用的,东部,西部和南部地区的质量最差.
- 所有群体的化物危险系数都高于允许限值 (1),这表明非致癌风险很大,儿童面临的风险最高.
结论:
- 比哈尔纳瓦达州的地下水受到水岩相互作用和矿物溶解的影响,导致化物,化物和硬度升高.
- 由于化物污染,大量的地下水构成非致癌的健康风险,特别是对于儿童来说.
- 有效的地下水质量监测和管理策略对于减轻健康风险和确保安全饮用水至关重要.
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