Could Lead Be Harming Your Child’s Health? Lead exposure is a health threat to children in Michigan. Lead poisoning can occur when children come into contact with lead. This can be through the air, dust, paint that has lead in it, by drinking contaminated water and through soil. In Michigan, lead exposure is common in older homes. Homes built before 1978 commonly have lead paint in them. This paint can be on walls, doors, cupboards, windows and other high touch areas in the home. Exposure to lead can ca...