Title: Optional

Text: Coal workers' pneumoconiosis (CWP), commonly known as "black lung disease," occurs when coal dust is inhaled. Over time, continued exposure to the coal dust causes scarring in the lungs, impairing your ability to breathe. Considered an occupational lung disease, it is most common among coal miners. Each paragraph will be a test.

Save test: Use this if you want to share this typing test (only for authenticated users).