COMPARISON OF PAH CONCENTRATIONS IN SEMIPERMEABLE MEMBRANE DEVICES, LOW VOLUME ACTIVE SAMPLER, AND SPRUCE NEEDLES Publication Attachment: 06-356.pdf Authors: Levy, W, Henkelmann, B, Pfister, G, Kirchner, M, Jakobi, G, Bernhöft, S, Kotalik, J, Niklaus, A, Schramm, K-W Year: 2006