In what type of housing is lead-based paint most commonly found?

Lead-based paint is most commonly found in housing built before 1978 because that is when the United States government banned the use of lead-based paint in residential properties. Homes constructed before this date often contain layers of paint that may have used lead as a pigment, making them a significant concern for lead exposure, especially in homes with deteriorating paint or renovation activities. The risk of lead poisoning is particularly relevant in these older homes, as lead dust can be generated when the paint deteriorates or during renovations.

Housing constructed after 1978, on the other hand, would not have lead-based paint used in its initial construction, significantly reducing the likelihood of lead exposure. While certain types of housing, like those built for low-income individuals or newly constructed properties, may face various other issues, they are not relevant in this context regarding the presence of lead-based paint.