At what concentration level does the excursion limit (EL) of asbestos apply?

The excursion limit (EL) for asbestos is specifically set at a concentration of 1.0 fibers per cubic centimeter (F/CC) of air. This limit is part of regulatory standards designed to protect workers from overexposure to asbestos fibers, which can lead to serious health issues, including asbestosis and mesothelioma.

An excursion limit is defined as an allowable higher concentration of a substance that can be present in a work environment for a short duration, provided that it does not exceed specified time periods over the course of a work shift. The significance of the 1.0 F/CC limit lies in its role as a protective measure, ensuring that even occasional spikes in exposure to asbestos do not increase the risk of developing asbestos-related diseases.

In contrast, the other concentration levels referenced do not align with this regulatory standard for excursion limits. Therefore, understanding the specific threshold of 1.0 F/CC is crucial for maintaining compliance with health and safety regulations and ensuring the well-being of individuals who may be exposed to asbestos.