A Predictive Model for Biogenic Hydrocarbon Aerosol Formation Using a Gas Phase Kinetic-Aerosol Partitioning Approach

本项目将研究气相生物反应中涉及的化学动力学机制。该项目的目标是开发生物气相排放造成的碳氢气溶胶形成的预测模型。目前，生物气溶胶的形成是以经验确定的参数为基础的建模工作。生物气溶胶可造成局部范围内的能见度丧失和区域范围内的气候强迫效应。该项目将涉及若干室外小室实验，以测量在特定温度范围内光和氮氧化物存在下的萜类气体和颗粒相反应产物，以开发一系列动力学表达式来模拟气溶胶的形成。

This project will investigate the chemical kinetics mechanisms involved in gas phase biogenic reactions. The goal of the project is to develop a predictive model for hydrocarbon aerosol formation as a result of biological gas phase emissions. Currently, biogenic aerosol formation is represented in modeling efforts based on empirically determined parameters. Biogenic aerosols can contribute both to visibility loss on a local scale and to climate forcing effects on a regional scale. The project will involve a number of outdoor chamber experiments to measure terpene gas and particle phase reaction products in the presence of light and nitrogen oxides over a specified temperature range to develop a sequence of kinetic expressions to model aerosol formation.