U.S.-France Cooperative Research: Reconstructing Atmospheric Lead Sources of and Fluxes to Urban Coastal Areas

美法合作研究：重建城市沿海地区的大气铅源和通量

基本信息

批准号：
9981488
负责人：
J Kirk Cochran
金额：
$ 1.89万
依托单位：
SUNY at Stony Brook
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2000
资助国家：
美国
起止时间：
2000-04-15 至 2003-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9981488&HistoricalAwards=false
关键词：
U.S.France Cooperative Research Reconstructing

项目摘要

9981488CochranThis three-year award for U.S.-France collaboration in environmental geochemistry involves J. Kirk Cochran of the State University of New York at Stony Brook and Alain Veron of the Centre Europeen de Recherche et d'Enseignement de Geosciences (CEREGE) in Marseilles, France. The investigators will determine the history of input rates and sources of stable lead to coastal areas. Archived samples from salt marshes in the northeastern United States, and from Italy will be analyzed for isotopes of lead to determine their sources. Previous research by the U.S. investigator has established chronologies of accumulation and lead flux for each site. These samples will be complemented by the collection of two cores from salt marshes located in the Rhone Delta in Southern France. Chronologies and stable lead concentrations from these sites will be analyzed at CEREGE. The U.S. investigator brings to this collaboration expertise in geochronology and use of natural radionuclides as tracers. This will be complemented by French expertise in lead isotopes. The project will advance understanding of sources of coastal atmospheric pollution. This award represents the U.S. side of a joint proposal to the NSF and the French National Center for Scientific Research (CNRS). NSF will cover travel funds and living expenses for the U.S. investigator to collect samples, work on the analyses of lead, and present a short course in France. The CNRS will support the visits of the French researchers to the United States.

9981488Cochran 这个为期三年的美法环境地球化学合作奖涉及纽约州立大学石溪分校的 J. Kirk Cochran 和法国马赛欧洲地球科学研究中心 (CEREGE) 的 Alain Veron 。调查人员将确定沿海地区稳定铅的输入率和来源的历史。来自美国东北部盐沼和意大利的存档样本将进行铅同位素分析，以确定其来源。美国调查人员之前的研究已经确定了每个地点的积累和铅通量的年表。这些样本将通过从位于法国南部罗纳河三角洲的盐沼中收集的两个岩心来补充。 CEREGE 将分析这些地点的年代学和稳定的铅浓度。美国研究人员为此次合作带来了地质年代学和使用天然放射性核素作为示踪剂方面的专业知识。法国在铅同位素方面的专业知识将对此予以补充。该项目将增进对沿海大气污染源的了解。该奖项代表了美国方面向 NSF 和法国国家科学研究中心 (CNRS) 提出的联合提案。 NSF 将为美国调查人员提供旅费和生活费，用于收集样本、进行铅分析以及在法国进行短期课程。 CNRS将支持法国研究人员访问美国。