What is pneumoconiosis? How does it occur ?

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Pneumoconiosis**: Pneumoconiosis is classified as a group of interstitial lung diseases. It primarily affects the lungs and is characterized by inflammation and scarring of lung tissue.

2. **Cause of Pneumoconiosis**: The disease occurs due to the inhalation of small particles. These particles can include mist, smoke, fumes, or dust.

3. **Mechanism of Occurrence**: When these small particles are inhaled, they irritate the lung tissue. This irritation can lead to inflammation, which over time can result in more severe conditions.

...