Assessment and comparison of human exposure to lead between Belgium, Malta, Mexico and Sweden.

摘要: This is a follow-up study of UNEP/WHO Pilot Project on Assessment Human Exposure to Lead and Cadmium through Biological Monitoring, carried out in 1983/1984. The main objectives the were: whether differences blood-lead levels found between countries Monitoring were confirmed primarily due exposure via ingested lead (oral intake) or inhaled lead; make preliminary survey, selected areas, possible sources high (Malta, Belgium). Four participated: Belgium, Malta, Mexico, Sweden. To insure comparability populations, certain categories monitored: teachers for socio-economic status, non smoking males, aged 25 50 years old. concentration (PbB) was measured determine current feces-lead excretion (PbF) determined find part ingestion. Blood-lead very different four countries. Median values PbB, μg Pb/1, were, decreasing 247 188 135 Belgium 53 PbF, Pb/day, 361 159 82 22 Oral intake seems be major route relationship PbB PbF curvilinear. investigate source exposure, survey made Malta Belgium; air suspended sedimenting particles monitored as well some food street dust samples. Concerning comparison concentrations these environmental samples no detected. internal Maltese people, by probably combination several factors.