Iron dust causes

Options

A. Byssinosis
B. Siderosis
C. Emphysema
D. Asthma

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks about the diseases caused by iron dust. We need to evaluate the options provided to identify which disease is directly linked to iron dust exposure.

2. **Analyzing the Options**:
- **Option 1: Buzzinosis**: This is a lung disease caused by inhaling organic dust from materials like hemp, flax, or cotton. Since it is not related to iron dust, this option is incorrect.
- **Option 2: Siderosis**: This is a lung disease specifically caused by the inhalation of iron or rust particles. It results in excess iron deposits in lung tissues, which is directly linked to iron dust exposure. Therefore, this option is likely correct.
- **Option 3: Emphysema**: This condition is primarily caused by smoking and leads to lung damage. It is not associated with iron dust, making this option incorrect.
- **Option 4: Asthma**: Asthma is typically triggered by allergies or viral infections, not by iron dust. Thus, this option is also incorrect.

3. **Conclusion**: After analyzing all the options, it is clear that the disease caused by iron dust is **Siderosis**.

### Final Answer:
The correct answer is **Siderosis**.

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