When is asbestos dangerous?

No amount of asbestos is considered safe. Products that contain greater than 1 percent of asbestos minerals are considered to be asbestos-containing.
The more asbestos you are exposed to, the more likely you are to get an asbestos disease. Asbestosis and lung cancer are dose-related diseases. Dose-related means the more asbestos you breathe, the more likely you are to get sick.