呼吸系统是一个开放的系统 ,环境与其疾病的发生和发展有密切的关系 ;近几年发现饮食也与其疾病的发生有关 ,即营养素能调节人体对环境毒物的反应。因此 ,认识这些因素在呼吸系统疾病发病中的作用 ,对于我们提高其防治水平是非常重要和必须的。1　环境污染与呼吸系统疾病1.1　 The respiratory system is an open system and its environment is closely related to the occurrence and development of its diseases. In recent years, it has been found that diet is also related to the occurrence of diseases, that is, nutrients regulate the body’s response to environmental toxicants. Therefore, understanding the role of these factors in the pathogenesis of respiratory diseases is very important and necessary for us to raise their level of prevention and treatment. 1 Environmental Pollution and Respiratory Diseases 1.1