<prompt> The dangerous particle size causing pneumoconiosis varies from -100-150μm50-100μm10-501μm1-5μm  <response>: PneumoconiosisPneumoconiosis is an occupational lung disease caused by the inhalation of dust.The development of pneumoconiosis depends on -The amount of dust retained in the lungs and airways.The size, shape of the particles The most dangerous particle ranges from 1 to 5 μm in diameter because they may reach the terminal small airway and air sacs and settle in their linings.Particle solubility and physiochemical reactivity.Additional effects of other irritants e.g. concomitant smoking.Important pneumoconiosisCool workers pneumoconiosis CWP Coal DustSilicosis grinders disease Silica dustAsbestosis Asbestos DustBerylliosis Beryllium dustSiderosis Iron dustByssinosis Cotton dust 