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二氧化氮(NO_2)在许多地区是最严重的大气污染物之一.它在汽车发动机的排气中被大量排出,在天然气燃烧时可以产生,在炸药爆炸后的通风不良的矿井可大量积聚.NO_2浓度高的地区,居民呼吸道感染的发病率增加.NO_2引起呼吸道病理改变及肺功能改变已有报道.NO_2吸入对机体免疫功能的影响,研究多着重在肺泡巨
Nitrogen dioxide (NO 2 ) is one of the most serious atmospheric pollutants in many areas. It is discharged in large quantities in the exhaust of automobile engines and can be generated when natural gas is burned. A poorly ventilated mine can accumulate in large amounts after explosion of explosives. In areas with high concentrations of NO 2 , the incidence of respiratory infections in residents has increased. NO 2 has caused changes in respiratory pathology and lung function. The effects of NO 2 inhalation on immune function have been reported. Studies have focused more on alveolar giants.