Homes built before 1978 (especially if there is evidence of cracked or peeling paint chips that could be ingested by children or result in inhalation of lead dust)
Leaded pipes found in older homes.
Consumer products including but not limited to toys with batteries, jewelry, spices, and dinnerware/dishes.
Cultural products (ex: home remedies, charms, ceremonial powders) made outside of the United States
Professions such as construction, landscaping, roofing, painting, auto-body repair, and law enforcement (risk for lead being tracked into the home).
Living in heavily traveled roadways or areas where demolition of old houses occurs.