Jung, Heejung S; Grady, Michael L; Victoroff, Tristan; & Miller, Arthur L. (2017). Simultaneously reducing CO 2 and particulate exposures via fractional recirculation of vehicle cabin air. Atmospheric Environment, 160, 77-88. doi: 10.1016/j.atmosenv.2017.04.014. UC Riverside: Center for Environmental Research and Technology. Retrieved from: http://www.escholarship.org/uc/item/2px248ss