Lead-based paint is a type of paint that contains lead, a toxic metal. It was commonly used in homes and buildings before 1978, when the U.S. government banned its use in residential properties due to health risks. Lead can be harmful, especially to young children, as it can cause developmental issues and other serious health problems. When lead-based paint deteriorates, it can create dust or chips that can be ingested or inhaled. Homeowners are encouraged to test for lead in older homes and take necessary precautions, such as hiring professionals for safe removal. Awareness of lead poisoning is crucial for public health.