van de Meent, DPeijnenburg, WStruijs, J2025-03-142025-03-141996https://rivm.openrepository.com/handle/10029/636161Added risk approach to derivation of maximum permissible concentrations for heavy metals: how to take into account the natural background levels?ArticleIn: Annual scientific report 1995. Bilthoven: National Institute of Public Health and the Environment, 1996;54-62025-03-14