Speaker: Jiaqi Shen, Rutgers University.  Reactive oxygen species (ROS) are a class of highly reactive oxygen-bearing molecules including the hydroxyl radical (OH), superoxide radical (O2.-) and hydrogen peroxide (H2O2). When aerosols encounter water, either in clouds or in lungs, they generate ROS in quantities that impact cloud chemistry and potentially underly aerosol-induced health impacts. Because ROS generation may be a ...