Derivation of 'safe' and 'critical' levels of PCBs in otter (Lutra lutra), fish and sediment, based on observed adverse physiological effects in individual otters; implications for management of otter areas.

Smit, M.D.; Hattum, B.G.M. van; Leonards, P.E.G.; Murk, A.J.; Jongh, A.W.J.J. de; Weiden, M.E.J. van der; Klein, M.H.J.; Hendriks, A.J.; Luttik, R.