What is the permissible exposure limit for asbestos in an 8-hour time-weighted average?

The permissible exposure limit for asbestos set by the Occupational Safety and Health Administration (OSHA) is 0.1 fibers per cubic centimeter (f/cc) as an 8-hour time-weighted average. This limit is established to protect workers from the harmful effects of asbestos exposure, which can lead to serious health issues such as asbestosis, lung cancer, and mesothelioma.

Understanding the significance of this limit is crucial for workers in environments where asbestos may be present, as exceeding this threshold can increase the risk of health problems. The permissible exposure limit is based on extensive research documenting the dangers of asbestos fibers and is designed to provide a margin of safety for individuals working in such conditions.

While the other options present different values, 0.1 f/cc is the standard accepted limit for workplace exposure over an 8-hour workday, thus ensuring workers are safeguarded against excessive fiber exposure.