EU. Directive 98/24/EC, Annex II, Binding Biological Limit Values and Health Surveillance Measures, OJ (L 131) 11, 5 May 1998
This list contains substances assigned a binding biological exposure limit (BEL) by the European Union. National BELs for these substances may not deviate from the limits in the Directive. Annex II contains the binding BEL for lead.