During an asbestos survey, what condition of asbestos is most concerning?

The most concerning condition of asbestos during an asbestos survey is damaged, deteriorated, or friable asbestos. This is because damaged or deteriorated asbestos can release toxic fibers into the air, significantly increasing the risk of exposure to individuals in the vicinity. In its friable state, asbestos materials can be easily crumbled or pulverized, allowing for the fibers to become airborne with very little disturbance. This state poses acute health risks, as inhalation of asbestos fibers can lead to serious respiratory diseases, including asbestosis, lung cancer, and mesothelioma.

Assessing the condition of asbestos is crucial during surveys because intact asbestos materials that are properly contained or sealed pose a lower risk of exposure as long as they are not disturbed. Unlabeled asbestos materials, while also a concern, primarily represent a lack of information and proper handling rather than an immediate risk. Therefore, the condition of asbestos is paramount in determining the level of risk associated with it, making damaged, deteriorated, or friable asbestos the most alarming scenario during an asbestos assessment.