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Ozone, Nitrogen Oxides, and Oxidants in a Rural Heterogeneous Photochemical Environment

农村异质光化学环境中的臭氧、氮氧化物和氧化剂

基本信息

批准号：
9015769
负责人：
Brian Heikes
金额：
$ 3.5万
依托单位：
University of Rhode Island
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
1990
资助国家：
美国
起止时间：
1990-09-01 至 1992-02-29
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9015769&HistoricalAwards=false
关键词：
Ozone Nitrogen Oxides Oxidants Rural

项目摘要

Atmospheric ozone and other photochemical oxidants will be studied at a rural mountain site in the Shenandoah Mountains of Virginia, a region surrounded by natural hydrocarbon emissions and downwind of the industrialized midwest and the urbanized eastern seaboard. Measurements of nitric oxide, ozone and UV light will be co-located and coincident with measurements of non- methane hydrocarbons, carbonyl compounds, carboxylic acids, particulate and gaseous inorganic anions and cations, organic nitrates, hydrogen peroxide and organic hydroperoxides, which are to be measured in clear air, interstitial air in cloud, and in two descrete size fractions of cloud water. The data sets will be combined and used to investigate net ozone production and oxidants in clear and cloudy air at a forested rural site with variable hydrocarbon and nitrogen oxide concentrations. The combined data sets will be further used to elucidate mechanisms of natural hydrocarbon oxidation. The measurements represent the first concurrent set of measurements in the gas and aqueous phases of non-methane hydrocarbons, their partially oxidized products (carbonyl compounds, carboxylic acids, organic hydroperoxides, organic nitrates), and the factors controlling ozone and other oxidants in-cloud.

大气臭氧和其他光化学氧化剂将在弗吉尼亚州谢南多厄山脉的一个乡村山区进行研究，该地区被天然碳氢化合物排放物包围，位于工业化中西部和城市化东海岸的下风处。一氧化氮、臭氧和紫外线的测量将与非甲烷碳氢化合物、羰基化合物、羧酸、颗粒和气态无机阴离子和阳离子、有机硝酸盐、过氧化氢和有机氢过氧化物的测量在同一地点并同时进行，这些测量将在晴空、云中间隙空气和两个离散环境中进行测量。云水的大小分数。这些数据集将被合并并用于调查碳氢化合物和氮氧化物浓度变化的森林乡村地区晴朗和阴天空气中的净臭氧产量和氧化剂。合并的数据集将进一步用于阐明天然碳氢化合物氧化的机制。这些测量代表了非甲烷碳氢化合物的气相和水相、其部分氧化产物（羰基化合物、羧酸、有机氢过氧化物、有机硝酸盐）以及控制云中臭氧和其他氧化剂的因素的第一组并行测量。