Both nicotine and carbon monoxide inhaled with cigarette smoking have been incriminated as causative factors. 抽烟时吸入的尼古丁和一氧化碳(CO)都已经被标定为致病因素。
Among the common toxic gases are sulfur dioxide, methane, the oxides of nitrogen, ammonia, hydrogen sulfide, and hydrogen cyanide; and ( most commonly ) carbon monoxide. 常见的有毒气体有二氧化硫、甲烷、氧化氮、氨、硫化氢、氰化氢以及最常见的一氧化碳(CO)。
Researchers also blamed exposure to nitrogen dioxide, carbon monoxide and particulates for the increase. 研究人员还指责了二氧化氮,一氧化碳(CO)和颗粒物的增加问题。
Gases such as carbon monoxide emited by factories and cars have polluted the atmosphere badly. 工厂和汽车发出的一氧化碳(CO)一类气体严重污染了大气。
Emissions of greenhouse gases, carbon monoxide and particulates could all be significantly reduced. 温室气体、一氧化碳(CO)和微粒的排放全都可以显著降低。