题目：Prediction, Identification, and Mutagenicity of Novel Nitro-Polycyclic Aromatic Hydrocarbons Formed via Atmospheric Heterogeneous Reactions 

　　报告人：Prof. Staci Simonich, Oregon State University, USA 

　　时间：2014年7月6日下午 3:00 

　　地点：中国科学院地球环境研究所高新园区 二楼报告厅. 

　　报告人简介: Prof .Staci Simonich is the associate editor of Environmental Science & Technology Letters. She received her Ph. D degree from Indiana University in 1995. Her current research focuses on understanding the atmospheric transport and deposition of semi-volatile organic compounds to high elevation ecosystems. Her research program seeks to understand the relative impact of current and historical Asian, Pacific Ocean, and North American sources on contamination at high elevations. Source region identification and 'age' are determined using air trajectories and the enantiomer ratios of chiral semi-volatile organic compounds. Sampling sites for the research include Okinawa, Cheeka Peak observatory, Marys Peak Observatory, Mt. Bachelor Observatory, and eight Western U.S. National Parks. Analytes of interest include organochlorine pesticides, current use pesticides, polycyclic aromatic hydrocarbons, and polybrominated diphenyl ethers. The research utilizes chromatography, mass spectrometry, and novel methods of sample extraction and purification.