What does PEL stand for?

• A. Permissible Exposure Limit
• B. Personal Exposure Limit
• C. Permissible Environmental Limit
• D. Peak Exposure Limit

Answer: (A)

PEL stands for Permissible Exposure Limit, the regulatory maximum amount of a hazardous substance a worker may be exposed to, typically over an 8-hour work shift as a time-weighted average (with some substances having a short-term exposure limit for brief spikes). This limit is established by OSHA and is enforceable, guiding how we conduct air monitoring and determine when controls are needed. It’s the standard term used in occupational safety for worker exposure, and it’s expressed in units like ppm or mg/m3. Other phrasing like “personal exposure limit,” “permissible environmental limit,” or “peak exposure limit” doesn’t align with the established regulatory terminology, making Permissible Exposure Limit the correct and best choice.