Mannix R C, Nguyen K P, Tan E W, Ho E E, Phalen R F
Department of Community and Environmental Medicine, University of California, Irvine 92697-1825, USA.
Sci Total Environ. 1996 Dec 20;193(2):149-58. doi: 10.1016/s0048-9697(96)05343-0.
Experiments were performed to study the physical characteristics of smoke aerosols generated by burning three types of stick incense in a 4 m3 clean room. Sidestream cigarette smoke was also examined under the same conditions to provide a comparison. Among the parameters measured were (a) masses of aerosol, carbon monoxide and nitrogen oxides generated by burning the incense or cigarettes, (b) rates of decay of the particles from the air, and (c) estimates of count median particle size during a 7 h period post-burning. There was variability among the types of incense studied with respect to many of the parameters. Also, as a general trend, the greater the initial particulate mass concentration, the more rapid the rate of decay of the smoke. In relation to the quantity of particulate generated, cigarette smoke was found to produce proportionally larger quantities of carbon monoxide and nitrogen oxides than did incense. Due to the fact that burning incense was found to generate large quantities of particulate (an average of greater than 45 mg/g burned, as opposed to about 10 mg/g burned for the cigarettes), it is likely, in cases in which incense is habitually burned in indoor settings, that such a practice would produce substantial airborne particulate concentrations.
实验在一个4立方米的洁净室内进行，研究燃烧三种类型的线香所产生的烟雾气溶胶的物理特性。在相同条件下还对侧流香烟烟雾进行了检测以作比较。所测量的参数包括：(a) 燃烧线香或香烟所产生的气溶胶、一氧化碳和氮氧化物的质量；(b) 空气中颗粒的衰减率；(c) 燃烧后7小时内颗粒计数中值粒径的估计值。在所研究的线香类型中，许多参数存在差异。此外，总体趋势是，初始颗粒物质量浓度越高，烟雾衰减速率越快。就所产生的颗粒物数量而言，发现香烟烟雾产生的一氧化碳和氮氧化物数量比线香成比例地更大。由于发现燃烧线香会产生大量颗粒物（平均每克燃烧物大于45毫克，而香烟约为每克燃烧物10毫克），在室内习惯性燃烧线香的情况下，这种做法很可能会产生大量的空气中颗粒物浓度。
