中文摘要：

通过对餐馆排放的油烟烟气中羰基化合物的研究，发现在20种目标化合物中检测到18种，其中乙醛的浓度最高，其次是甲醛和丙酮。从分布上来看，直链的羰基化合物的浓度远远高于支链和环状的羰基化合物的浓度。因为无论是烹调油或者食物加热时都可以产生大量的羰基化合物。

英文摘要：

Carbonyl compounds from oil smoke were studied in a restaurant, in which 18 of 20 kinds of target carbonyls were identified in oil smoke and the most abundant carbonyl was acetaldehyde, formaldehyde and acetone. The aliphatic aldehydes were more abundant than aromatic and branch-chain aldehydes since whenever either cooking oil or food can produce a lot of carbonyl compounds when heated.