What is the PEL (Permissible Exposure Limit) for lead in air?

The Permissible Exposure Limit (PEL) for lead in air is set at 50 micrograms per cubic meter (UG/M3). This standard is established by the Occupational Safety and Health Administration (OSHA) to help protect workers from the harmful effects of lead exposure. Lead is a toxic metal that can cause serious health issues, including neurological damage and other systemic effects, especially with long-term exposure.

The 50 UG/M3 limit reflects the maximum allowable concentration of lead in the air that workers can be exposed to over an 8-hour workday while still being considered safe under OSHA regulations. This PEL is crucial for industries where lead is present, such as construction, battery manufacturing, and paint removal, as it helps in maintaining a safe working environment. Understanding these limits is essential for lead inspectors and risk assessors when evaluating potential exposure risks in various settings.