人们在产生粉尘的作业环境里工作,长期吸人大量的有害粉尘,使肺组织发生纤维性变化,逐渐影响呼吸功能和其他器官的功能。这种因吸入粉尘所引起的肺部病变叫做尘肺。由于吸入粉尘的种类和性质不同,尘肺病变的发生、发展情况也各有不同。如:吸入粉尘的主要成分是游离二氧化矽所引起的肺部 People working in dusty work environments, inhaling large amounts of harmful dust over long periods of time, causing fibrotic changes in the lung tissue and gradually affecting the respiratory and other organ functions. This lung disease caused by inhaled dust is called pneumoconiosis. Due to the different types and nature of inhaled dust, the occurrence and development of pneumoconiosis are also different. Such as: the main component of inhaled dust is free silicon dioxide caused by the lungs