滤棒长度对卷烟主流烟气中7种有害物质的影响研究

The influence of length of cigarette filter on the seven kinds of harmful chemicals in mainstream smoke

为研究滤棒长度对卷烟主流烟气中一氧化碳(CO)、氢氰酸(HCN)、NNK、氨、苯并[a]芘、苯酚及巴豆醛等7种有害物质的影响,制造出滤棒长度分别为30,27,24,21 mm的4种卷烟,测定其主流烟气中单位焦油的7种有害物质含量。结果表明,卷烟主流烟气中单位焦油苯并[a]芘、巴豆醛、CO的含量随滤棒长度减小而减少;HCN、NNK、NH3、苯酚的含量则有相反的变化规律;而卷烟主流烟气中单位焦油的危害性变化不大。

Four kinds of cigarette filters with length of 30,27,24,21 mm have been designed to investigate the influence of the length of filter on the emission of seven kinds of harmful chemicals in cigarette.Four kinds of cigarettes have been made on even ground using the four kinds of filters,and the seven kinds of harmful chemicals in the mainstream smoke was determined.Results showed that B（a）P,crotonaldehyde,CO in unit tar were reduced as the length of filter shorten;HCN,NNK,NH3,phenol had the contrary change;the toxicity of cigarette hold the line.Therefore,short filter can effectively reduce some of the harmful chemicals in mainstream smoke.