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.

该项目的目标是研究大气中痕量气体的氯 (Cl) 氧化机​​制，科学家计划对最近在奥利克托克点（Oliktok Point）（该地区位于该地区）进行的实地项目中收集的数据进行分析、建模和解释。阿拉斯加沿海北坡油田的项目将解决了解环境大气中挥发性有机化合物 (VOC) 的 Cl 氧化的关键知识空白，并有可能改变有关大气 Cl 化学的知识，对这些活动将共同用于通过以下目标研究大气痕量气体 Cl 氧化的主要机制： (1) 识别北极油田中的反应性 VOC 并量化其 Cl 反应性 (2)识别 VOC + Cl 反应的含氧 VOC (OVOC) 和二次有机气溶胶 (SOA) 产物；(3) 调查 2020 年北极能源部支持的 CLOROX 现场活动；活性氯化学过程中的 VOC、OVOC 和 SOA 成分数据，连接目标 1 和 2。该项目是对亲爱的同事信 21-064“支持在大气科学研究和教育中使用现有数据和样本”的回应。研究生将通过在私营部门研发环境中的指导获得培训和经验。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优点和能力进行评估，被认为值得支持。更广泛的影响审查标准。