Pneumoconiosis is a type of lung disease caused by inhaling fine dust particles, often found in workplaces. Common sources include coal dust, asbestos, and silica. Over time, these particles can lead to inflammation and scarring of lung tissue, making it difficult to breathe. Symptoms of pneumoconiosis may include coughing, shortness of breath, and chest pain. Diagnosis typically involves imaging tests like X-rays or CT scans, and treatment focuses on managing symptoms and preventing further exposure to harmful dust. In severe cases, it can lead to complications such as respiratory failure.