Xiaozhen Liu

Liu, X., & Frey, H. C. (2011). Modeling of in-vehicle human exposure to ambient fine particulate matter. ATMOSPHERIC ENVIRONMENT, 45(27), 4745–4752. https://doi.org/10.1016/j.atmosenv.2011.04.019

Liu, X., Frey, H. C., & Cao, Y. (2010). Estimating In-Vehicle Concentration of and Exposure to Fine Particulate Matter Near-Roadway Ambient Air Quality and Variability in Vehicle Operation. TRANSPORTATION RESEARCH RECORD, (2158), 105–112. https://doi.org/10.3141/2158-13