颗粒物采样中的尼古丁污染。

Chiu Yueh-Hsiu, Hart Jaime E, Smith Thomas J, Hammond S Katharine, Garshick Eric, Laden Francine

Exposure, Epidemiology and Risk Program, Department of Environmental Health, Harvard School of Public Health, Boston, MA 02215, USA.

Int J Environ Res Public Health. 2009 Feb;6(2):601-7. doi: 10.3390/ijerph6020601. Epub 2009 Feb 9.

We have addressed potential contamination of PM(2.5) filter samples by nicotine from cigarette smoke. We collected two nicotine samples - one nicotine sampling filter was placed inline after the collection of PM(2.5) and the other stood alone. The overall correlation between the two nicotine filter levels was 0.99. The nicotine collected on the "stand-alone" filter was slightly greater than that on the "in-line" filter (mean difference = 1.10 mug/m(3)), but the difference was statistically significant only when PM(2.5) was low (</= 50 mug/m(3)). It is therefore important to account for personal and secondhand smoke exposure while assessing occupational and environmental PM.

我们已经探讨了香烟烟雾中的尼古丁对PM(2.5)过滤样本的潜在污染问题。我们采集了两个尼古丁样本——一个尼古丁采样过滤器在采集PM(2.5)之后串联放置，另一个单独放置。两个尼古丁过滤器水平之间的总体相关性为0.99。“单独”过滤器上收集的尼古丁略高于“串联”过滤器上的尼古丁（平均差异 = 1.10微克/立方米），但仅当PM(2.5)浓度较低（≤50微克/立方米）时，这种差异才具有统计学意义。因此，在评估职业和环境中的PM时，考虑个人和二手烟暴露情况非常重要。