恶臭是指所有刺激人体嗅觉器官、引起不愉快以及损坏生活环境的气体物质。常见的恶臭污染物有氨、三甲胺、硫化氢、甲硫醇、甲硫醚、二甲二硫、二硫化碳和苯乙烯等。
其中三甲胺是排放量大、嗅阈值低的恶臭污染物，是恶臭污染控制的主要对象之一。
Trimethylamine is a kind of malodorous compound which possesses the speciality of excessive emission and low threshold concentration.
恶臭污染物不仅对生态环境造成影响，而且严重危害着人体健康，恶臭污染已被列为七大环境公害之一。
Odorous compounds are of environmental concern because of their adverse effects on ecological environment and human health. They can cause health symptoms even in very small amounts.
轮胎生产企业排放的废气，含有碳黑、非甲烷总烃、H2S及其他恶臭类有机气态污染物，难于处理。
Its very difficult to dispose the exhaust gas discharged by tyre manufacturers, which contains carbon black, NMHC, H2S and odor organic gaseous pollutants.
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