This study examined airborne emissions from cigarette butts for styrene, 2‐methyl‐2‐cyclopenten‐1‐one, naphthalene, triacetin, and nicotine. Ten experiments were conducted by placing butts in a stainless steel chamber and measuring the chemical concentrations in chamber air. Emission rates were determined from the concentrations. Triacetin and nicotine concentrations were roughly 50% of initial concentrations after 100 hours, while concentrations of other chemicals decayed to less than 10% of initial concentrations within 24 hours. Initial emission rates per cigarette butt ranged from 200 to 3500 ng h⁻¹. Triacetin and nicotine emission rates at 25°C were 1.6 to 2.2 times higher than the rates at 20°C, while the emission rates of other chemicals at 25°C were 1.1 to 1.3 times higher than the rates at 20°C only during the first sampling period. The chemical concentrations and emission rates at 30°C were comparable or lower than the values at 25°C, possibly due to different batches of cigarettes used. The 24‐hours emitted mass of nicotine from a cigarette butt at 25°C could be up to 14% of the literature reported nicotine masses emitted from a burning cigarette.

中文翻译：

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测量烟头向空气中的化学排放量。

这项研究检查了来自烟头的空气中的苯乙烯，2-甲基-2-环戊烯-1-酮，萘，甘油三乙酸酯和尼古丁的排放物。通过将烟头放在不锈钢腔室内并测量腔室内空气中的化学浓度进行了十次实验。由浓度确定排放率。三醋精和尼古丁的浓度在100小时后约为初始浓度的50％，而其他化学物质的浓度在24小时内降至初始浓度的10％以下。每个烟头的初始排放速率范围为200至3500 ng h ^-1。25°C时三醋精和尼古丁的排放速率比20°C时高1.6至2.2倍，而其他化学品在25°C时的排放速率仅比20°C时高1.1至1.3倍。第一个采样期。在30°C时的化学浓度和排放速率可比或低于25°C时的浓度，这可能是由于使用了不同批次的卷烟。在25°C下，烟头在24小时内释放的尼古丁质量可能高达文献报道的从燃烧着的香烟中排放的尼古丁质量的14％。