What do the letters "PEL" signify in hazard communication?

The letters "PEL" stand for Permissible Exposure Limit. This term is crucial in occupational health and safety, as it defines the maximum allowable concentration of a hazardous substance in the workplace air over a specified period. PELs are established to protect workers from harmful effects of exposure to chemical substances, ensuring that the levels they encounter do not pose significant risk to health. These limits are typically set by regulatory agencies, such as the Occupational Safety and Health Administration (OSHA), based on scientific research and safety assessments.

Understanding PELs is vital for employers and employees to maintain safe working environments and comply with safety regulations. Thus, recognizing and adhering to these limits is an essential part of hazard communication in the workplace.