Collaborative Research: Changes in river-aquifer exchange induced by groundwater pumping, and their effect on arsenic contamination in the Red River Delta, Vietnam
合作研究:地下水抽取引起的河流-含水层交换变化及其对越南红河三角洲砷污染的影响
基本信息
- 批准号:1521258
- 负责人:
- 金额:$ 5万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2015
- 资助国家:美国
- 起止时间:2015-07-15 至 2018-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Collaborative Research: Changes in river-aquifer exchange induced by groundwater pumping and their effect on arsenic contamination in the Red River Delta, VietnamAbstractAt least two billion people in the world, including an estimated 40 million in the United States, use domestic wells for potable drinking water. The quality of this groundwater can have a large impact on human health, yet we know little about how extensive groundwater pumping, primarily for agricultural and urban water supplies, impacts groundwater quality. This project studies the effect of groundwater pumping on the sustainability of water quality in aquifer systems affected by arsenic, a naturally occurring carcinogen. In South and Southeast Asia, extensive pumping has influenced the spatial extent and concentration of arsenic contamination in groundwater. This field-based project examines how hydrological changes impact the biogeochemistry of aquifers and, subsequently, the arsenic levels in groundwater. Specifically, this project investigates how urban water use in Vietnam is changing aquifer hydrology and river-groundwater interactions that mobilize arsenic. The results of this study will provide generalizable insights leading to more effective management of groundwater resources impacted by naturally occurring contaminants in other settings. The research activities will involve undergraduate and graduate students from Columbia University, Barnard College, and Massachusetts Institute of Technology and engage underprivileged high school students in New York City. In northern Vietnam, the reversal of groundwater flow along the western bank of the Red River has been induced by groundwater pumping for the city of Hanoi. This flow reversal draws high-As groundwater from a gray Holocene aquifer into an adjacent low arsenic, orange Pleistocene aquifer, and the orange Pleistocene sands are turning gray as iron oxyhydroxides are reduced by advected dissolved organic carbon (DOC). This project examines how pumping influences the source and composition of aquifer recharge at the riverbank, where labile arsenic is available and high levels of DOC are released by freshly deposited sediments. To quantify the impact of urban pumping, the hydrology and biogeochemistry of the western bank aquifers of the Red River influenced by pumping are compared to the eastern bank aquifers that are insulated from the effects of pumping. This controlled study quantifies the extent to which human perturbations have affected the chemical composition of groundwater and aquifer sediments.
合作研究:越南红河三角洲地下水抽取引起的河流-含水层交换的变化及其对砷污染的影响摘要世界上至少有20亿人,包括美国估计的4000万人,使用家庭威尔斯井作为饮用水。这种地下水的质量可能对人类健康产生很大影响,但我们对主要用于农业和城市供水的大量地下水抽取如何影响地下水质量知之甚少。该项目研究抽取地下水对受砷(一种自然致癌物)影响的含水层系统水质可持续性的影响。在南亚和东南亚,大量抽水影响了地下水砷污染的空间范围和浓度。这一实地项目研究水文变化如何影响含水层的地球化学,以及随后影响地下水中的砷含量。具体而言,该项目调查了越南城市用水如何改变含水层水文和河流-地下水相互作用,动员砷。这项研究的结果将提供可推广的见解,导致更有效地管理地下水资源的自然发生的污染物在其他设置的影响。研究活动将涉及来自哥伦比亚大学、巴纳德学院和马萨诸塞州理工学院的本科生和研究生,并吸引纽约市贫困高中生。在越南北方,河内抽取地下水导致红河西岸地下水沿着回流。这种流动逆转提请高砷地下水从灰色的全新世含水层到邻近的低砷,橙子更新世含水层,和橙子更新世砂变成灰色的铁羟基氧化物减少平流溶解有机碳(DOC)。本项目研究抽水如何影响河岸含水层补给的来源和组成,在那里不稳定的砷是可用的,高水平的DOC由新沉积的沉积物释放。 为了量化城市抽水的影响,比较受抽水影响的红河西岸含水层的水文和地球化学与受抽水影响的东岸含水层。 这项对照研究量化了人类扰动对地下水和含水层沉积物化学成分的影响程度。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
专利数量(0)
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Brian Mailloux其他文献
Elevated arsenic concentrations in groundwater of the Upper Indus Plain of Pakistan across a range of redox conditions
巴基斯坦印度河上游平原不同氧化还原条件下地下水中砷浓度升高
- DOI:
10.1016/j.scitotenv.2023.168574 - 发表时间:
2024-02-20 - 期刊:
- 影响因子:8.000
- 作者:
Nisbah Mushtaq;Abida Farooqi;Junaid Ali Khattak;Ishtiaque Hussain;Brian Mailloux;Benjamin C. Bostick;Athena Nghiem;Tyler Ellis;Alexander van Geen - 通讯作者:
Alexander van Geen
Brian Mailloux的其他文献
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{{ truncateString('Brian Mailloux', 18)}}的其他基金
RAPID: Examining How Access to Green Space Impacts Subjective Well-Being During the COVID-19 Pandemic
RAPID:研究在 COVID-19 大流行期间进入绿色空间如何影响主观幸福感
- 批准号:
2029301 - 财政年份:2020
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Acquisition of an Ion Chromatograph (IC) for Water Quality Analyses in an Undergraduate-Led Lab
在本科生主导的实验室中购买用于水质分析的离子色谱仪 (IC)
- 批准号:
1737760 - 财政年份:2017
- 资助金额:
$ 5万 - 项目类别:
Standard Grant
Collaborative Research: Coupled Thermal-Hydrological-Mechanical-Chemical-Biological Experimental Facility at DUSEL Homestake
合作研究:DUSEL Homestake 的热-水文-机械-化学-生物耦合实验设施
- 批准号:
0928249 - 财政年份:2009
- 资助金额:
$ 5万 - 项目类别:
Continuing Grant
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