Jacobs B W, Billings C E
Am Ind Hyg Assoc J. 1985 Oct;46(10):547-54. doi: 10.1080/15298668591395337.
The operation investigated uses two induction furnaces for removal of rubber from tracked-vehicle treads. A laboratory-scale simulation of the field operation was employed to generate emissions at 399 degrees C (750 degrees F) and 677 degrees C (1250 degrees F), and emission samples were collected using glass fiber filters and Tenax as the sampling media. Sampling and analytical methods were developed and evaluated with 10 representative polynuclear aromatic hydrocarbons (PAH). High-pressure liquid chromatography (HPLC) and gas chromatography/mass spectrometry (GC/MS) were used to characterize emissions. The PAH were profiled as subsets and graphically displayed as micrograms (micrograms) of emissions per kilogram of rubber and as percentages of total emissions. In each subset, relative amounts of PAH were found to be related to combustion temperatures. Identical coal tar pitch volatiles (CTPV) exposures to emissions generated at the two temperatures studied would result in a 178-fold difference in exposure to carcinogenic PAH.
所研究的操作使用两台感应炉从履带车辆的胎面上去除橡胶。采用实验室规模的现场操作模拟，在399摄氏度（750华氏度）和677摄氏度（1250华氏度）下产生排放物，并使用玻璃纤维过滤器和Tenax作为采样介质收集排放物样本。针对10种具有代表性的多环芳烃（PAH）开发并评估了采样和分析方法。使用高压液相色谱法（HPLC）和气相色谱/质谱法（GC/MS）对排放物进行表征。将PAH作为子集进行分析，并以每千克橡胶排放物的微克数以及占总排放量的百分比的形式进行图形显示。在每个子集中，发现PAH的相对含量与燃烧温度有关。在研究的两个温度下产生的排放物中，相同的煤焦油沥青挥发物（CTPV）暴露量会导致致癌PAH暴露量相差178倍。
