Collaborative Research: Development of a Better Understanding of Ambient RM Chemistry, Reactions Forming, and Methods for Measurement
合作研究:更好地理解环境 RM 化学、反应形成和测量方法
基本信息
- 批准号:2044537
- 负责人:
- 金额:$ 40.26万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-03-15 至 2025-02-28
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
This project focuses on the development of improved methods for measuring reactive mercury in the atmosphere. Controlled laboratory experiments will be conducted to test and develop new and better materials for detecting oxidized mercury. The project includes measurements of reactive mercury in the ambient atmosphere at a diverse group of sites with different atmospheric chemistry. Improving the ability to quantify the concentrations and chemistry of reactive mercury compounds is critical to developing strategies for mitigating their damaging impacts.This effort has three main objectives. These are to: (1) Develop a better understanding of the chemical reactions responsible for forming and transforming reactive mercury (RM) through laboratory experiments and field campaigns; (2) Test and develop new and better materials for oxidized mercury (Hg) detection, including the identification of desorbable, long-term collection, and short-term collection surfaces for better resolved measurements; and (3) Develop and test a method to estimate RM concentrations measured over the past 20 years using archived data. The work is critical for understanding the Hg biogeochemical cycle and modeling atmospheric Hg processes and deposition, the two priority focus areas recently identified by the NADP’s Mercury in the Environment and Links to Deposition Science (MELD) Committee.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.
该项目的重点是改进大气中活性汞的测量方法。将进行受控实验室实验,以测试和开发检测氧化汞的新材料和更好的材料。该项目包括在具有不同大气化学成分的不同地点测量周围大气中的活性汞。提高量化活性汞化合物的浓度和化学成分的能力对于制定减轻其破坏性影响的战略至关重要。这项工作有三个主要目标。这是为了:(1)通过实验室实验和实地活动,更好地了解负责形成和转化活性汞(Rm)的化学反应;(2)测试和开发新的和更好的氧化汞(Hg)检测材料,包括识别可解吸的、长期收集和短期收集表面,以便更好地进行测量;以及(3)开发和测试一种使用存档数据估计过去20年测量的Rm浓度的方法。这项工作对于理解汞生物地球化学循环和模拟大气汞过程和沉积至关重要,这两个优先重点领域最近由NADP的环境中的汞和与沉积科学委员会(MELD)的联系确定。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势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(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Comparison and calibration of methods for ambient reactive mercury quantification
环境活性汞定量方法的比较和校准
- DOI:10.1016/j.scitotenv.2022.159219
- 发表时间:2023
- 期刊:
- 影响因子:9.8
- 作者:Dunham-Cheatham, Sarrah M.;Lyman, Seth;Gustin, Mae Sexauer
- 通讯作者:Gustin, Mae Sexauer
Improvements to the Accuracy of Atmospheric Oxidized Mercury Measurements
- DOI:10.1021/acs.est.0c02747
- 发表时间:2020-11-03
- 期刊:
- 影响因子:11.4
- 作者:Lyman, Seth N.;Gratz, Lynne E.;Luippold, Adriel
- 通讯作者:Luippold, Adriel
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Seth Lyman其他文献
Traceable Calibration of Atmospheric Oxidized Mercury Measurements.
大气氧化汞测量的可追溯校准。
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:11.4
- 作者:
T. Elgiar;Seth Lyman;Teodor D. Andron;Lynne Gratz;A. Hallar;Milena Horvat;Sreekanth Vijayakumaran Nair;T. O’Neil;R. Volkamer;I. Živkovič - 通讯作者:
I. Živkovič
Key results from the salt lake regional smoke, ozone and aerosol study (SAMOZA).
盐湖区域烟雾、臭氧和气溶胶研究 (SAMOZA) 的主要结果。
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:2.7
- 作者:
Daniel A. Jaffe;Matt Ninneman;Linh Nguyen;Haebum Lee;Lu Hu;Damien Ketcherside;Lixu Jin;Emily Cope;Seth Lyman;Colleen Jones;Trevor O'Neil;Marc L Mansfield - 通讯作者:
Marc L Mansfield
Seth Lyman的其他文献
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{{ truncateString('Seth Lyman', 18)}}的其他基金
Collaborative Research: Mercury Oxidation Pathways in a Continental Atmosphere: High Temporal Resolution Measurements of Mercury and Oxidants at Storm Peak Laboratory
合作研究:大陆大气中的汞氧化途径:风暴峰实验室对汞和氧化剂的高时间分辨率测量
- 批准号:
1951513 - 财政年份:2020
- 资助金额:
$ 40.26万 - 项目类别:
Standard Grant
Collaborative Research: Refining and Testing Methods for Identifying and Quantifying Gaseous Oxidized Mercury in Air
合作研究:识别和量化空气中气态氧化汞的精炼和测试方法
- 批准号:
1700722 - 财政年份:2017
- 资助金额:
$ 40.26万 - 项目类别:
Standard Grant
I-Corps: Commercialization of a Mercury Calibration Device
I-Corps:水银校准装置的商业化
- 批准号:
1445933 - 财政年份:2014
- 资助金额:
$ 40.26万 - 项目类别:
Standard Grant
Collaborative Research: Refining and Testing Methods for Identifying and Quantifying Gaseous Oxidized Mercury in Air
合作研究:识别和量化空气中气态氧化汞的精炼和测试方法
- 批准号:
1324781 - 财政年份:2013
- 资助金额:
$ 40.26万 - 项目类别:
Continuing Grant
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