Renoxification of Nitric Acid in the Global Troposphere and in Snowpacks

全球对流层和积雪中硝酸的再氧化

• 批准号: 0097573
• 负责人: Barbara Finlayson-Pitts
• 金额: $ 28.77万
• 依托单位: University of California-Irvine
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-08-15 至 2005-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0097573&HistoricalAwards=false
• 关键词: Renoxification; Nitric; Acid; Global; Troposphere

This project is investigating the heterogeneous chemistry of reactive nitrogen species at the air-water interface. Laboratory studies will be conducted to elucidate the elementary processes associated with the reaction of HNO3 with NO on various 'wet' solids, which are model components of dust particles in the atmosphere. The production of HONO and other reaction products will be measured. The reaction of HNO3 on ice surfaces with NO will also be investigated to determine if this could be the source of HONO that has recently been measured in the Arctic, which appears to be coming at least in part from the snowpack. The results could have significant implications for modeling the global production of nitrogen oxides and ozone.

本计画主要研究空气-水界面活性氮的异质化学。 将进行实验室研究，以阐明与HNO 3与NO在各种“湿”固体上的反应相关的基本过程，这些固体是大气中尘埃颗粒的模型成分。 将测量HONO和其他反应产物的产生。 HNO 3在冰面上与NO的反应也将被研究，以确定这是否可能是最近在北极测量到的HONO的来源，这似乎至少部分来自积雪。 这些结果可能对模拟全球氮氧化物和臭氧的产生具有重要意义。