Final answer:
Homes built before 1978 are likely to contain lead-based paint, with the ban on lead paint for housing taking effect that year. Exposure to lead can be harmful, particularly to children, and preventive measures should be taken if lead paint is present in an older home.
Step-by-step explanation:
Lead paint can be found in homes built before 1978. This fact is supported by the U.S. Environmental Protection Agency (EPA), which shows a high percentage of older homes containing lead-based paint. Specifically, 87% of homes built before 1940 contain lead-based paint, with 69% of those built between 1940 and 1959, and 24% of homes from 1960 to 1977 also having lead-based paint. The EPA notes that lead-based paint was banned for use in housing in 1978. Therefore, homes constructed after 1978 would not have originally been painted with lead-based paint.
Exposure to lead, especially in children, can result in significant health consequences, including developmental delays and learning difficulties. To mitigate this risk, if living in a home built before 1978, it's recommended to have it inspected for lead and to take preventive measures if lead paint is present. These measures could include frequent cleaning of surfaces to remove lead dust and hiring lead-safe certified professionals for any renovations or repairs. Eating a healthy diet rich in iron, calcium, and vitamin C can also help protect against the absorption of lead.