What concentration of lead in paint indicates dangerous levels according to regulations?

The concentration of lead in paint that indicates dangerous levels, according to regulations, is set at 90 parts per million or greater. This threshold has been established based on health studies that link lead exposure to serious health issues, particularly in children. When the lead content in paint exceeds this level, it poses a significant health risk, warranting immediate attention and remediation efforts to ensure safety in residential and child-occupied buildings. Understanding this standard is crucial for inspectors and risk assessors as it guides them in identifying lead hazards and implementing necessary interventions to safeguard public health.

The lower thresholds presented in the other choices do not align with the established regulatory limits for lead in paint and therefore do not correctly reflect the levels at which lead is considered hazardous. This distinction reinforces the importance of adhering to established safety standards in lead risk assessments.