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Renoxification of Nitric Acid in the Global Troposphere and in Snowpacks

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
项目状态：
已结题
起止时间：
2001-08-15 至 2005-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0097573&HistoricalAwards=false
关键词：
RenoxificationNitricAcidGlobalTroposphere

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中文摘要
翻译
本项目正在研究空气-水界面上活性氮物种的非均相化学。将进行实验室研究，以阐明与HNO3与NO在各种“湿”固体上反应的基本过程，这些“湿”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量。还将调查HNO3与NO在冰面上的反应，以确定这是否可能是最近在北极测量到的HONO的来源，似乎至少部分来自积雪。这一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。
英文摘要
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.
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