Atmospheric Perfluorinated Acid Precursors: Chemistry, Occurrence and Impacts by Cora J. Young and Scott A. Mabury.- Isomer Profiling of Perfluorinated Substances as a Tool for Source Tracking: A Review of Early Findings and Future Applications by Jonathan P. Benskin, Amila O. De Silva, and Jonathan W. Martin.- Biodegradation of Fluorinated Alkyl Substances by Tobias Frömel and Thomas P. Knepper.- Perfluorinated Substances in Human Food and Other Sources of Human Exposure by Wendy D’Hollander, Pim de Voogt, Wim De Coena, and Lieven Bervoetsa.- Index.