How Reliable Is the Laboratory Analysis of Polychlorinated Biphenyls (PCBs) in Soil?

Ming Zhang1, Junko Hara2, Miho Yoshikawa2, Yoshishige Kawabe2 and Hajime Sugita2, (1)Geol. Survy of Japan, AIST, Tsukuba, Japan, (2)Geol. Survy of Japan, AIST, Ibaraki, Japan