silicosis dust in lung

silicosis respiratory lung exposure pneumoconiosis scarring personal disease silica crystalline inhaled asbestos dust asbestosis construction irreversible occupational pleural grinder potter rot fibrosis inhalation medical breathe chest pain fiber infographic mesothelium laryngeal dangerous atelectasis effusion thickening palpitations coughing diagram symptoms pulmonary alveoli chronic tissue shortness worker magnifying illustration man male