在缅甸艾耶瓦迪 (伊拉瓦迪) 三角洲绘制风险地图:对公共卫生的影响
M A Hoque1,2, K K Khaing3, M Fowler1
1School of the Environment and Life Sciences (SELS) University of Portsmouth Portsmouth UK.
GeoHealth
|October 31, 2025
概括
缅甸艾耶瓦迪三角洲的污染很普遍,热点与排水模式有关. 许多井超过世界卫生组织 (WHO) 的指导方针,对农村社区构成重大风险.
科学领域:
- 环境科学 环境科学
- 水文地质学 水文地质学
- 地质化学 地质化学
背景情况:
- 艾耶瓦迪三角洲是1200万人的家园,遭受了广泛的污染.
- 污染主要是由于铁矿物质在无毒条件下的还原性溶解引起的,由有机碳为燃料.
研究的目的:
- 调查排水密度和等级性充电路径对艾耶瓦迪三角洲分布的影响.
- 评估三角洲170公里的地下水中的污染水平.
主要方法:
- 利用数字海拔模型 (DEM) 数据分析排水密度和充电路径.
- 编制和分析了沿着西向东的横断线沿着136个井 (深度高达215米) 的数据.
- 研究了来自123,000多个井的全国查数据.
主要成果:
- 在中部三角洲中确定了热点,与高排水密度和集中充电相关.
- 虽然21%的研究井超过了当地50μg/l的极限,但71%的井超过了世卫组织的10μg/l指南.
- 国家数据显示,8%的井口超过缅甸的50μg/l限制,但71%的井口超过了世卫组织的10μg/l指南.
结论:
- 污染是普遍存在的,并对农村人口构成重大风险,特别是农村人口,因为目前的国家标准不如世卫组织指导方针那么严格.
- 度的变化是由复杂的氧化还原动力学和地下水流动驱动的,需要在热点地区进行有针对性的选.
- 一个全面的查计划至关重要,以防止无意中接触不安全的饮用水.
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