How many tablespoons of butter in a half cup? 8 tablespoons in a half cup of butter which equals 1 full stick of butter or 2 sticks equals 1 cup.
Pneumoconiosis is a lung condition caused by the inhalation of airborne particles that can damage lung tissue. This is mainly seen with the inhalation of dust from coal (coal workerâs pneumoconiosis), asbestos (asbestosis), silica (silicosis) and beryllium (berylliosis). It is usually due to occupational exposure.
Once dust has damaged the lungs, there is no way to reverse the damage. Dust is a threat both to mineworkers and to communities near mines. The most dangerous kinds of dust are coal dust, which causes black lung disease, and silica dust, which causes silicosis. Dust that contains asbestos (which causes asbestosis) or heavy metals is also dangerous.