Tracking Urban Nitrous Acid (HONO) Emissions and Secondary Production in the Great Lakes Region during Michigan-Ontario Ozone Source Experiment (MOOSE)

该项目为计划于2021年和2022年夏季在底特律大都市上空进行的密歇根-安大略省臭氧来源实验(MOOSE)现场活动做出了贡献。驼鹿是由密歇根州环境、五大湖和能源部(Egle)赞助的一项合作努力，包括加拿大政府、NOAA、NASA、USEPA和USFS的参与。这项活动的目标是提高对该地区臭氧空气污染产生的来源和化学成分的了解。这项由美国国家科学基金会支持的项目的研究包括测试假说，以更好地理解HONO形成的不同途径，并包括测量稳定同位素，这将作为一种独特的工具，根据活性氮物种各自的同位素特征严格限制来源、化学处理路径和汇。这一努力预计将有助于澄清HONO在臭氧生产中的作用。该项目包括将对社区多尺度空气质量(CMAQ)化学运输模型进行的改进，将使该模型的用户受益。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。

This project contributes to the Michigan-Ontario Ozone Source Experiment (MOOSE) field campaign scheduled to take place in the summers of 2021 and 2022 over metropolitan Detroit. MOOSE is a collaborative effort sponsored by the Michigan Department of Environment, Great Lakes, and Energy (EGLE), and includes participation from the Canadian government, NOAA, NASA, USEPA and the USFS. The goal of the campaign is to improve the understanding of the sources and chemistry associated with the production of ozone air pollution in the region.The research in this project supported by NSF includes the testing of hypotheses to better understand heterogeneous pathways to HONO formation and includes the measurement of stable isotopes that will serve as a unique tool to rigorously constrain sources, chemical processing pathways, and sinks of reactive nitrogen species based upon their respective isotopic signatures. This effort is expected to help to clarify the role of HONO in ozone production. The project includes improvements that will be made to the Community Multiscale Air Quality (CMAQ) chemical transport model that will benefit users of the model.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.