Environmental risk limits for nine trace elements / P.L.A. van Vlaardingen, R. Posthumus and C.J.A.M. Posthuma-Doodeman
RIVM report 601501029/2005. - Investigation performed for the account of the Directorate-General for Environmental Protection, Directorate for Chemicals, Waste and Radiation, in the context of the project 'International and National Environmental Quality Standards for Substances in the Netherlands, RIVM-project no. 601501'