What does the Montréal Public Health Department do when there are cases of lead poisoning?
In Québec, a doctor who suspects there has been significant exposure to lead can have a patient’s blood lead levels measured. If results show that lead concentrations are higher than the public health intervention level (100 micrograms per litre of blood), the doctor and the laboratory that performed the analysis are required to report this result to the Public Health Department. The role of the Public Health Department then consists in checking the patient’s living environments (home, school, work or recreational activities) to see if there is a specific source of lead that could explain the levels measured and whether it could be a source of significant exposure for other people. When this source is identified, control measures must be introduced to eliminate it. Old peeling or chipping lead paint (windowsills, cribs, dust from renovations, etc.) and certain traditional make-up products (kohl) are the main sources of lead exposure linked to cases of poisoning among children living on
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