RT null T1 Assessment of Human Exposure to Lead: Comparison between Belgium, Malta, Mexico and Sweden A1 United Nations Environment Programme, A1 World Health Organization, K1 lead K1 epidemiology K1 evaluation research K1 sampling K1 Health K1 Lead YR 1985 FD 1985 LK https://wedocs.unep.org/handle/20.500.11822/29187 UL https://wedocs.unep.org/handle/20.500.11822/29187 NO The main objectives of this study were:- To study whether differences in blood lead levels found between countries in the Biological Monitoring Project were primarily due to exposure via ingested lead or via inhaled lead;- To study the relationship between exposure to lead and concentrations of lead in blood; and- To make a preliminary survey, in selected areas, of the possible sources of high exposure. DS UN Environment Document Repository RD Sep 16, 2026