Understanding and quantifying the retention and migration of per- and polyfluoroalkyl substances in the vadose zone
了解和量化包气区全氟烷基物质和多氟烷基物质的保留和迁移
基本信息
- 批准号:2023351
- 负责人:
- 金额:$ 39.85万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2020
- 资助国家:美国
- 起止时间:2020-08-01 至 2024-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Per- and polyfluoroalkyl substances (PFAS) are manmade chemicals that have recently been found in soils and waters all over the U.S. and other countries. Their widespread use and and persistence in the environment may result in exposure of millions of people in the U.S. to PFAS-contaminated drinking water. Because of the impacts of PFAS to human health, it is important to understand how these contaminants move in the environment and reach points of exposure. To date, the movement of PFAS through soil to groundwater is poorly understood and difficult to predict. Knowing how they move and how long they stay in soils is critical for cleanup and reducing exposure. The proposed project will integrate experimental and modeling approaches to study the factors that control the movement of PFAS in soils and groundwater. The project will generate data and predictive tools that can provide valuable information for stakeholders and decision makers. The project will further benefit society by supporting STEM education, including broadening of participation of underrepresented groups, and informing the broader community about the risks posed by PFAS-contaminated water and potential for intervention to mitigate risks.A growing body of field data demonstrates that soils serve as significant sources of PFAS to groundwater. However, the primary mechanisms that control the long-term retention of PFAS in soils remain poorly understood. This project will address this critical knowledge gap by combining novel experimental and mathematical modeling approaches. Specifically, the project will 1) conduct investigations of PFAS transport in unsaturated porous media under transient flow conditions; 2) develop and use state-of-the-art mathematical models that represent surfactant-induced flow and PFAS-specific transport processes to identify the critical factors that control the retention of PFAS in soils and the long-term mass discharge to groundwater. The conceptual and computational tools developed in this project are expected to contribute to the establishment of science-based state and federal regulations for PFAS in the soils and to develop protocols on remediation. The research findings will be disseminated to a local water utility to improve water resources management and remediation decisions for PFAS contamination problems in Tucson, Arizona. In addition, the project will train underserved undergraduates in STEM at the University of Arizona through the Arizona Science, Engineering and Math Scholars Program and educate the local community about PFAS contamination through by collaboration with the Flandrau Science Center & Planetarium.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
全氟烷基和多氟烷基物质(PFAS)是最近在美国和其他国家的土壤和水中发现的人造化学物质。它们在环境中的广泛使用和持续存在可能导致美国数百万人接触到受pfas污染的饮用水。由于全氟辛烷磺酸对人类健康的影响,了解这些污染物如何在环境中移动并到达接触点是很重要的。迄今为止,人们对PFAS通过土壤向地下水的运动知之甚少,而且很难预测。了解它们如何移动以及它们在土壤中停留的时间对于清理和减少接触至关重要。拟议的项目将结合实验和建模方法来研究控制PFAS在土壤和地下水中移动的因素。该项目将生成数据和预测工具,为利益相关者和决策者提供有价值的信息。该项目将通过支持STEM教育进一步造福社会,包括扩大代表性不足群体的参与,并向更广泛的社区宣传受pfas污染的水所带来的风险以及采取干预措施减轻风险的可能性。越来越多的实地数据表明,土壤是地下水中PFAS的重要来源。然而,控制PFAS在土壤中长期滞留的主要机制仍然知之甚少。该项目将通过结合新颖的实验和数学建模方法来解决这一关键的知识鸿沟。具体而言,该项目将1)开展瞬态流动条件下PFAS在非饱和多孔介质中的输运研究;2)建立和使用最先进的数学模型,代表表面活性剂诱导的流动和PFAS特异性运输过程,以确定控制PFAS在土壤中的保留和长期大量排放到地下水的关键因素。本项目开发的概念和计算工具预计将有助于建立以科学为基础的州和联邦土壤中PFAS法规,并制定补救方案。研究结果将分发给当地的自来水公司,以改善亚利桑那州图森市的水资源管理和全氟辛烷磺酸污染问题的补救决定。此外,该项目还将通过亚利桑那科学、工程和数学学者计划,在亚利桑那大学培训服务不足的STEM本科生,并通过与弗兰德劳科学中心和天文馆合作,向当地社区宣传PFAS污染。该奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(11)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Multidimensional simulation of PFAS transport and leaching in the vadose zone: Impact of surfactant-induced flow and subsurface heterogeneities
- DOI:10.1016/j.advwatres.2021.104015
- 发表时间:2021-09
- 期刊:
- 影响因子:4.7
- 作者:J. Zeng;B. Guo
- 通讯作者:J. Zeng;B. Guo
Reduced Accessible Air–Water Interfacial Area Accelerates PFAS Leaching in Heterogeneous Vadose Zones
- DOI:10.1029/2022gl102655
- 发表时间:2023-04
- 期刊:
- 影响因子:5.2
- 作者:J. Zeng;B. Guo
- 通讯作者:J. Zeng;B. Guo
Model validation and analyses of parameter sensitivity and uncertainty for modeling long-term retention and leaching of PFAS in the vadose zone
- DOI:10.1016/j.jhydrol.2021.127172
- 发表时间:2021-11
- 期刊:
- 影响因子:6.4
- 作者:J. Zeng;M. Brusseau;B. Guo
- 通讯作者:J. Zeng;M. Brusseau;B. Guo
Testing the Validity of the Miscible-Displacement Interfacial Tracer Method for Measuring Air-Water Interfacial Area: Independent Benchmarking and Mathematical Modeling.
- DOI:10.1016/j.chemosphere.2020.128193
- 发表时间:2021-01
- 期刊:
- 影响因子:8.8
- 作者:El Ouni A;Guo B;Zhong H;Brusseau ML
- 通讯作者:Brusseau ML
Air-water interfacial areas relevant for transport of per and poly-fluoroalkyl substances.
- DOI:10.1016/j.watres.2021.117785
- 发表时间:2021-12-01
- 期刊:
- 影响因子:12.8
- 作者:Brusseau ML;Guo B
- 通讯作者:Guo B
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Bo Guo其他文献
Observation of Bright-Dark Soliton Pair in a Mode-Locked Fiber Laser With Topological Insulator
拓扑绝缘体锁模光纤激光器中明暗孤子对的观测
- DOI:
- 发表时间:
2015 - 期刊:
- 影响因子:2.6
- 作者:
Bo Guo;Yong Yao;Jiajun Tian;YuFeng Zhao;Shuai Liu;Meng Li;QuanMing Ran - 通讯作者:
QuanMing Ran
RETRACTED ARTICLE: MicroRNA-4268 inhibits cell proliferation via AKT/JNK signalling pathways by targeting Rab6B in human gastric cancer
撤回文章:MicroRNA-4268 通过靶向人类胃癌中的 Rab6B 抑制 AKT/JNK 信号通路的细胞增殖
- DOI:
10.1038/s41417-019-0118-6 - 发表时间:
2019-07-15 - 期刊:
- 影响因子:5.000
- 作者:
Lingyu Zhao;Meng Xue;Lu Zhang;Bo Guo;Yannan Qin;Qiuyu Jiang;Ruifang Sun;Juang Yang;Lumin Wang;Liying Liu;Xiaofei Wang;Chen Huang;Dongdong Tong - 通讯作者:
Dongdong Tong
emPyrococcus furiosus/em Argonaute with isothermal amplification for fast and ultra-sensitive diagnosis of acute hepatopancreatic necrosis disease in shrimp
火球菌热稳定核酸酶介导的等温扩增技术在虾急性肝胰腺坏死病快速超灵敏诊断中的应用
- DOI:
10.1016/j.aquaculture.2023.739821 - 发表时间:
2023-10-15 - 期刊:
- 影响因子:3.900
- 作者:
Bo Guo;Lihong Yang;Yu Wang;Chenjie Zhao;Xue Zhang;Yixin Tang;Yue Wang;Hui Shen;Song Gao;Pei Wang - 通讯作者:
Pei Wang
Towards Temporal Dynamic Segmentation
- DOI:
10.1023/b:gein.0000034821.31552.1b - 发表时间:
2004-09-01 - 期刊:
- 影响因子:2.600
- 作者:
Bo Guo;Carl E. Kurt - 通讯作者:
Carl E. Kurt
Interactively Decomposing Composite Changes to Support Code Review and Regression Testing
交互式分解复合变更以支持代码审查和回归测试
- DOI:
10.1109/compsac.2017.153 - 发表时间:
2017 - 期刊:
- 影响因子:0
- 作者:
Bo Guo;Myoungkyu Song - 通讯作者:
Myoungkyu Song
Bo Guo的其他文献
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{{ truncateString('Bo Guo', 18)}}的其他基金
CAREER: Unraveling the Role of Thin Water Films in Controlling Subsurface Transport of Surface-Active Contaminants across Scales
职业:揭示薄水膜在控制表面活性污染物跨尺度地下传输中的作用
- 批准号:
2237015 - 财政年份:2023
- 资助金额:
$ 39.85万 - 项目类别:
Continuing Grant
Collaborative Research: ERASE-PFAS: Stabilization of Per- and Polyfluorinated Substances in Sewage Sludge Intended for Land-application
合作研究:ERASE-PFAS:用于土地应用的污水污泥中全氟和多氟物质的稳定化
- 批准号:
2225750 - 财政年份:2022
- 资助金额:
$ 39.85万 - 项目类别:
Standard Grant
Collaborative Research: In Situ Laboratory Imaging and Modeling of PFAS Transport and Fate in Variably Saturated Heterogeneous Porous Media
合作研究:可变饱和非均质多孔介质中 PFAS 传输和归宿的原位实验室成像和建模
- 批准号:
2054575 - 财政年份:2021
- 资助金额:
$ 39.85万 - 项目类别:
Standard Grant
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