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通过对某化肥厂合成车间９２ 名氨气（ＮＨ３） 作业工人和造气车间６９ 名一氧化碳（ＣＯ） 、流化氢（Ｈ２Ｓ） 作业工人的研究发现，各车间工人的鼻腔、咽喉疾病的检出率均高于对照组，表明窒息性气体（ＣＯ、Ｈ２Ｓ） 和刺激性气体（ＮＨ３） 同样会对工人的鼻腔、咽喉造成危害。
A total of 69 ammonia (NH3) and 69 methane (NH3) -based workers in a fertilizer plant and 69 gas-generating plants were tested for carbon monoxide (CO) and hydrogen sulfide (H2S) workers. Nasal cavity and throat diseases were detected in workshop workers Rates were higher than the control group, indicating that asphyxiant gases (CO, H2S) and irritating gases (NH3) will also be harmful to the workers’ nose and throat.