Many older homes built before 1978 likely contain lead-based paint that can chip or peel and expose occupants to lead poisoning risks. Certain jobs like construction or painting may involve lead exposure. Imported dishware from other countries could contain lead. Soil near older homes may also have lead from paint chips or dust that young children could ingest. The document recommends contacting the National Lead Information Center or talking to a doctor about testing children's blood lead levels at ages 1 and 2 if any lead exposure risks exist.