Air-Water Interfacial Chemistry of Polycyclic Aromatic Hydrocarbons and Relevance to Atmospheric Deposition Processes

该项目涉及研究雾滴气/液界面上的多环芳烃(PAHs)的行为。将进行实验室测量，以评估多环芳烃的热力学性质如何影响其在大气雾滴和空气之间的分配，以及模拟多环芳烃在大气中的去向和传输所需的信息。将评估多环芳烃分配对温度、多组分浓度和雾滴直径的依赖关系。还将在现场进行测量，以求出环境空气中的雾-水/空气分配系数，并验证实验室结果。

This project involves the study of the behavior of polynuclear aromatic hydrocarbons (PAHs) occurring at the gas/liquid interface of fog droplets. Laboratory measurements will be made to evaluate how the thermodynamic properties of PAH affect their partitioning between atmospheric fog droplets and air, information needed to model the fate and transport of PAH in the atmosphere. The dependence of PAH partitioning on temperature, multi-species concentrations, and fog droplet diameter will be assessed. Measurements will also be made in the field to derive fog-water/air partition coefficients in ambient air and to verify the laboratory results.