Observations of fine and coarse particle nitrate at several rural locations in the United States

Lee, T., X. Y. Yu, B. Ayres, S. M. Kreidenweis, W. C. Malm, and J. L. Collett (2008), Observations of fine and coarse particle nitrate at several rural locations in the United States, Atmos. Environ., 42, 2720-2732.