Collaborative Research: Atmospheric Chlorine Oxidation of Hydrocarbons Emitted from the North Slope of Alaska Oil Fields

合作研究：阿拉斯加油田北坡排放碳氢化合物的大气氯氧化

• 批准号: 2147893
• 负责人: Kerri Pratt
• 金额: $ 66.08万
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-06-01 至 2025-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2147893&HistoricalAwards=false
• 关键词: Collaborative; Research; Atmospheric; Chlorine; Oxidation

The goal of this project is to investigate the mechanisms of chlorine (Cl) oxidation of trace gases in the atmosphere. Scientists plan to conduct analyses, modeling and interpretation of data collected during a recent field project at Oliktok Point, an area that is within the coastal North Slope of Alaska oil fields. This project will address key knowledge gaps in the understanding of Cl oxidation of volatile organic compounds (VOCs) in the ambient atmosphere and has the potential to transform knowledge about atmospheric Cl chemistry, with implications for wintertime and marine/coastal environments.The activities will be used together to investigate the dominant mechanisms of Cl oxidation of atmospheric trace gases through the following objectives: (1) Identify reactive VOCs and quantify their Cl reactivity in an Arctic oil field; (2) Identify oxygenated VOCs (OVOC) and secondary organic aerosol (SOA) products of VOC + Cl reactions; and (3) Investigate the 2020 Arctic DOE-supported CLOROX field campaign VOC, OVOC, and SOA composition data during active chlorine chemistry, connecting objectives 1 and 2. This project is in response to Dear Colleague Letter 21-064 “Supporting the Use of Existing Data and Samples in Atmospheric Sciences Research and Education.” Several undergraduate and graduate students will receive training and experience through mentoring in a private sector R&D environment.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.

本计画的目的是探讨大气中微量气体的氯氧化机制。科学家计划对最近在阿拉斯加油田沿海北坡的奥利克托克点（Oliktok Point）进行的一个实地项目中收集的数据进行分析、建模和解释。该项目将解决环境大气中挥发性有机化合物（VOC）的氯氧化方面的关键知识差距，并有可能改变有关大气氯化学的知识，对冬季和海洋/沿海环境产生影响。这些活动将一起使用通过以下目标来研究大气微量气体中氯氧化的主要机制：（1）确定活性VOC并量化其在北极油田中的Cl反应性;（2）确定VOC + Cl反应的含氧VOC（OVOC）和二次有机气溶胶（SOA）产物;（3）调查2020年北极DOE支持的CLOROX现场活动VOC，OVOC和SOA在活性氯化学过程中的组成数据，连接目标1和2。该项目是为了回应亲爱的同事信21-064“支持在大气科学研究和教育中使用现有数据和样本”。一些本科生和研究生将通过在私营部门研发环境中的指导接受培训和经验。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。