Polycyclic Aromatic Hydrocarbons Processing by a Fog Cloud - Field and Laboratory Studies

雾云处理多环芳烃 - 现场和实验室研究

• 批准号: 0907261
• 负责人: Kalliat Valsaraj
• 金额: $ 42.99万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-15 至 2012-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0907261&HistoricalAwards=false
• 关键词: Polycyclic; Aromatic; Hydrocarbons; Processing; Fog

This project addresses questions regarding the chemical processing in fog of polynuclear aromatic hydrocarbons (PAHs), some of which are known to be toxic. Specifically: Is there a possibility that fog processing of PAHs could transform them to oxidized compounds (oxy-PAHs) or particles? Might some of the oxy-PAHs be toxic? If so, these compounds might also represent a potential health threat if they are inhaled in a foggy environment. The approach consists of field determination of phase distributions of PAHs and oxy-PAHs throughout smog-fog-smog (SFS) cycles near Fresno, CA and/or at Louisiana State University. Broader impacts include new perspectives on the cycling of PAHs in atmospheric waters, which are of interest to a broad range of scientists. Graduate students from underrepresented groups are being trained through their participation in the project. Also participating is a faculty member from Prairie View A&M University, a Historically Black College-University institution. Research results are being incorporated into undergraduate courses taught by the principal investigator.

该项目涉及多环芳烃（PAHs）雾中的化学处理问题，其中一些已知是有毒的。具体而言：是否有可能将多环芳烃的雾处理转化为氧化化合物（氧化多环芳烃）或颗粒？有些氧化多环芳烃可能有毒吗？如果是这样的话，这些化合物也可能是一个潜在的健康威胁，如果他们在雾的环境中吸入。该方法包括现场测定的相分布的多环芳烃和氧多环芳烃在整个烟雾-雾-烟雾（SFS）周期附近的弗雷斯诺，加利福尼亚州和/或路易斯安那州州立大学。更广泛的影响包括对大气沃茨中多环芳烃循环的新观点，这引起了广泛的科学家的兴趣。来自代表性不足群体的研究生正在通过参加该项目接受培训。参加会议的还有一名来自草原景观A M大学的教员，这是一所历史上的黑人学院大学。研究成果正在纳入主要研究员教授的本科课程。