Trends in Remote PM2.5 Residual Mass across the United States: Implications for Aerosol Mass Reconstruction in the IMPROVE network

Jenny L Hand1, Anthony J Prenni2, Bret A Schichtel2, William Conrad Malm3 and Judith C. Chow4, (1)Colorado State Univ, Fort Collins, CO, United States, (2)National Park Service, Air Resources Division, Denver, CO, United States, (3)Colorado State University, Fort Collins, CO, United States, (4)Desert Research Institute Reno, Reno, NV, United States