Anthracosis is due to inhalation of-
**Core Concept**
Anthracosis, also known as coal miner's pneumoconiosis, is a lung disease caused by the inhalation of coal dust particles. This occupational lung disease is characterized by the accumulation of carbonaceous material in the lungs, leading to inflammation and fibrosis.
**Why the Correct Answer is Right**
The correct answer is related to the pathophysiology of anthracosis, which involves the deposition of carbon particles in the lung tissue. When coal miners inhale coal dust, the particles penetrate the lung parenchyma, triggering an inflammatory response and leading to the formation of coal macules and eventually, anthracotic pigmentation. This process is facilitated by the small size of the coal particles, which allows them to reach the alveoli and cause damage.
**Why Each Wrong Option is Incorrect**
**Option A:** Not applicable.
**Option B:** Silicosis is a different type of occupational lung disease caused by the inhalation of silica particles, not coal dust.
**Option C:** Asbestosis is a lung disease caused by the inhalation of asbestos fibers, not coal particles.
**Clinical Pearl / High-Yield Fact**
Anthracosis is a classic example of an occupational lung disease that is preventable with proper protective gear and working conditions. Regular screening and monitoring of coal miners for respiratory symptoms and lung function are essential in early detection and prevention of anthracosis.
**Correct Answer:** D. Coal dust.