What is a common source of lead exposure in older homes?

Lead-based paint is a prevalent source of lead exposure in older homes, particularly those built before 1978 when the use of lead in residential paint was banned in the United States. Many homes constructed before this regulation utilized lead-based paint due to its durability and attractive finish. Over time, the paint deteriorates, creating lead dust and chips that can be harmful, especially to young children who might ingest these particles through normal hand-to-mouth activities.

In older homes, the risk of lead exposure is exacerbated during renovations, where the disruption of painted surfaces may release lead dust into the environment, posing additional hazards if not properly contained. While lead plumbing fixtures, lead roofing materials, and lead dust from renovations can also contribute to lead exposure, the widespread and historical use of lead-based paint makes it a particularly significant concern when assessing older properties for lead hazards. Understanding this context is crucial for anyone working in or living in older homes to implement appropriate safety measures.