Clearance asbestos air monitoring tests the air to measure the level of airborne asbestos fibers in an area following work or removal of asbestos containing materials. An area is ‘cleared’ when the level of airborne asbestos fibers is measured as being below 70 structures per millimeter squared (AHERA TEM). For PCM sampling and analysis using
The effects of long-term exposure to asbestos typically don’t show up for at least 20 to 30 years after initial exposure. Asbestosis signs and symptoms include: Shortness of breath. The main symptom of asbestosis is shortness of breath. Initially, the shortness of breath occurs only with exertion, but eventually it will happen even while you’re resting.