在煤炭生产中,无论是掘进还是采煤,使用硝基炸药爆破时,都要产生大量的有害气体,如一氧化碳和氮氧化物等。井下作业工人因吸入上述有害气体,可引起轻重不同程度的中毒。除一氧化碳对人体的毒害外,被吸入的大量氮氧化物还可引起化学性肺炎、肺水肿。现将我院近年来观察到的4 In coal production, whether it is driving or coal mining, the use of nitro-explosive explosions, have to produce a large number of harmful gases, such as carbon monoxide and nitrogen oxides. Downhole workers due to inhalation of the harmful gases, can cause varying degrees of severity of poisoning. In addition to carbon monoxide poisoning to the human body, inhaled large amounts of nitrogen oxides can also cause chemical pneumonia, pulmonary edema. Now our hospital observed in recent years 4