Experimental Study of Sulfur Oxidation Chemistry in Clouds in Eastern China

中国东部云中硫氧化化学的实验研究

• 批准号: 0711102
• 负责人: Jeffrey Collett
• 金额: $ 49.97万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-07-01 至 2011-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0711102&HistoricalAwards=false
• 关键词: Experimental; Study; Sulfur; Oxidation; Chemistry

Rapid increases in electric power generation by combustion of high sulfur coal associated with industrialization have made China the world''s largest emitter of sulfur dioxide (SO2). As a consequence, precipitation in China is becoming increasingly acidic, and sulfate deposition fluxes are reaching levels previously only experienced many decades ago in pre-regulated European and U.S. settings. The prospect of significant downwind acid rain and sulfate deposition is also a concern to neighboring countries such as South Korea and Japan as well as the Northern Pacific and Southwestern United States. Colorado State University (CSU) scientists, who have a longstanding research interest in the role that clouds and cloud droplets play in transforming gas-phase SO2 into sulfuric acid droplets, are to team with Chinese academic and research institutions in a large, multi-year acid rain study. Taking advantage of an existing research station at Mt. Tai (eastern China) which often intercepts clouds, field campaigns designed to shed light on the controlling mechanisms of the oxidation of SO2 in these cloud chemical systems will be carried out. The project provides an important international training opportunity for CSU students and may enhance U.S.-China scientific collaborations.

随着工业化的发展，高硫煤燃烧发电的迅速增加，使中国成为世界上最大的二氧化硫排放国。因此，中国的降水正变得越来越酸，硫酸盐沉降通量达到了几十年前在欧洲和美国的预先管制环境中才经历过的水平。严重的下风酸雨和硫酸盐沉积的前景也引起了韩国和日本等邻国以及北太平洋和美国西南部的关注。科罗拉多州立大学（CSU）的科学家们对云和云滴在将气相二氧化硫转化为硫酸滴的过程中所起的作用有着长期的研究兴趣，他们将与中国的学术和研究机构合作，进行一项为期多年的大型酸雨研究。利用位于泰山（中国东部）的现有研究站，该研究站经常拦截云层，将进行实地活动，旨在阐明这些云化学系统中二氧化硫氧化的控制机制。该项目为科罗拉多州立大学的学生提供了重要的国际培训机会，并可能加强美中科学合作。