What does "control of exposure" mean in the context of asbestos?

"Control of exposure" refers specifically to the implementation of measures designed to limit the release of asbestos fibers in the workplace and minimize the risks associated with exposure. This approach is crucial in environments where asbestos materials are present since it directly addresses the potential health hazards posed by airborne asbestos fibers.

By focusing on limiting fiber release, various strategies can be employed, such as employing engineering controls like ventilation systems, using wet methods during demolition to minimize dust, and utilizing encapsulation techniques to seal asbestos-containing materials. These practices help to ensure that workers are not exposed to harmful levels of asbestos in their environment, providing a safer workspace.

Other options focus on different aspects of workplace safety. For instance, while eliminating all asbestos from the work area would theoretically provide the greatest safety, it is often impractical and not always feasible. Training workers on asbestos safety is indeed vital, but it is more about education than directly controlling exposure itself. Finally, using regular masks for respiratory protection, though important, does not address sufficiency in controlling asbestos exposure at the source or within the environment where work is conducted.

In summary, "control of exposure" encompasses practical strategies aimed at reducing actual asbestos release and risks, which is the essence of choosing the correct response.