1. Kim, J.C.; Allen, E.R. Effects of Filter Pack Sampling Conditions on Observed Ambient Concentrations of Dry Acid Deposition Species; Chemosphere. 1997, 34, 587-610.
2. Lee, K.W.; Ramamurthi, M. Filter Collection. In Aerosol Measurement: Principles, Techniques, and Applications; Willeke, K., Baron, P.A., Eds.; Van Nostrand Reinhold: New York, 1993; pp 179.
3. Lazrus, A. Nitric Acid Measurement in Western USA—Current Methods to Measure Atmospheric Nitric Acid and Nitrate Artifacts; U.S. Environmental Protection Agency: Washington, DC, 1979.
4. U.S. EPA. Determination of the Strong Acidity of Atmospheric Fine Particles (<2.5 µm) Using Annular Denuder Technology, U.S. Environmental Protection Agency: Washington, DC, 1992.
5. Watson, J.G.; Chow, J.C. 28. Ambient Air Sampling. In Aerosol Measurement: Principles, Techniques, and Applications; Willeke, K., Baron, P.A., Eds.; Van Nostrand Reinhold: New York, 1993; pp 622.