由于地下水中的重金属的致癌和非致癌风险评估,使用概率学方法
Beant Kaur Guron1, Sunil Kalkal1, Rohit Mehra2
1Thapar Institute of Engineering & Technology, Patiala, India.
概括
地下水受到重金属的污染对健康构成重大风险. 这项研究量化了曼萨地区地下水中,,和铁的致癌和非致癌风险.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 地质化学 地质化学
背景情况:
- 地下水受到重金属的污染是全球日益关注的问题,尤其是在发展中国家.
- 在饮用水中暴露于,,和铁等有毒金属会给健康带来重大风险.
- 评估这些风险对于保护公共健康和确保安全的水资源至关重要.
研究的目的:
- 评估与曼萨地区地下水中的重金属污染相关的致癌和非致癌健康风险.
- 为了确定有毒金属 (Cd,Cr,Zn,Fe) 在研究区域的空间分布.
- 为了比较确定性和概率风险评估方法,包括蒙特卡洛模拟.
主要方法:
- 采集地下水样本并使用原子吸收光谱仪 (AAS-7000) 分析重金属度.
- 确定性和概率 (蒙特卡洛模拟) 方法用于风险评估.
- 进行了敏感性分析,以确定影响环境风险的关键因素.
主要成果:
- 地下水中的重金属度按照以下顺序进行: (Cd) > (Cr) > (Zn) > 铁 (Fe).
- 重金属度被确定为影响非致癌风险的主要因素.
- 由于Cr和Cd水平升高,儿童的癌症风险估计约为1000分之2和成年人的癌症风险约为1000分之1
结论:
- 曼萨地区地下水中的高和含量给儿童和成人带来了显著的癌症风险.
- 重金属度是对人口非致癌健康风险的关键决定因素.
- 迫切需要采取战略来解决重金属污染问题,确保长期的地下水质量和公共卫生保护.
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