Pneumoconiosis

Pneumoconiosis is a disease caused by the accumulation of dust in the lungs. The disease is caused by chemical factors such as dust, gas, steam, and so on. Dust causing pneumoconiosis was 1-3 micron-sized dust and will be placed directly on the surface of the lung alveolis. Dust a larger size will persist in the upper respiratory tract, and the smaller will be expelled through the respiratory system. Symptoms of pneumoconiosis were cough, shortness of breath, general fatigue, weight loss, sputum danlain on. Besides, the disease can include inflammation, accumulation of dust, malignant tumors, and so on.