Hydroperoxide, Nitrate, and Epoxide Chemistry of Biogenically-produced Alkenes

生物产生的烯烃的氢过氧化物、硝酸盐和环氧化物化学

• 批准号: 1240604
• 负责人: Paul Wennberg
• 金额: $ 61.66万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-04-01 至 2017-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1240604&HistoricalAwards=false
• 关键词: Hydroperoxide; Nitrate; Epoxide; Chemistry; Biogenically

This research is a component of a broad community experiment named SOAS (Southern Oxidant and Aerosol Study) designed to further investigate the photo-oxidation of the emissions (biogenic volatile organic compounds; BVOCs) of plants in the context of the atmospheric environment of the Southeast United States. The project will investigate the photochemistry of the dominant biogenic alkenes and their oxidation products, during a collaborative field experiment planned for summer, 2013 in Alabama. This site was chosen as a region where substantial BVOCs from vegetation mix with variable amounts of NOx and SOx oxidants emitted from power generation sites and other anthropogenic sources, covering a wide range of the natural reactivity exhibited by these compounds. As well as the generation of photochemical smog through ozone formation, the subsequent oxidation products from BVOCs may contribute to the atmospheric burden of secondary aerosols, which have been implicated in regional climate forcing. Both the impacts on human health and human well being through climate change make the study of these compounds and particles a key aspect of current atmospheric chemical investigation.

这项研究是名为SOAS(南方氧化剂和气溶胶研究)的广泛社区实验的组成部分，旨在进一步调查美国东南部大气环境中植物排放的光氧化(生物挥发性有机化合物；BVOCs)。该项目将在计划于2013年夏天在阿拉巴马州举行的合作野外实验期间，研究主要生物成因烯烃及其氧化产物的光化学。该地点被选为来自植被的大量BVOCs与发电站和其他人为来源排放的不同数量的NOx和SOx氧化剂混合的区域，涵盖了这些化合物表现出的广泛的自然反应性。除了通过臭氧形成产生光化学烟雾外，BVOCs随后产生的氧化产物可能会增加二次气溶胶的大气负担，这与区域气候强迫有关。气候变化对人类健康和福祉的影响使得对这些化合物和颗粒物的研究成为当前大气化学研究的一个关键方面。