Department of Environmental Geosciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria.
Environ Pollut. 2011 Oct;159(10):2690-7. doi: 10.1016/j.envpol.2011.05.032. Epub 2011 Jun 23.
The release of unburnt coal particles and associated polycyclic aromatic hydrocarbons (PAHs) may cause adverse impacts on the environment. This study assessed variations in the concentration and composition of PAHs in a set of fifty coal samples from eleven coal basins worldwide. The maximum PAH concentrations at high volatile bituminous rank were recorded in samples from a single basin. Considering the entire sample set, the highest PAH concentrations were in fact found outside of this rank range, suggesting that the maceral composition and thus the coal's origin also influenced PAH concentrations. The examination of the PAH compositions revealed that alkylated 2-3 ring PAHs remain dominant compounds irrespective of coal rank or origin. Multivariate analysis based on PAH and maceral content, bulk and maturity parameters allowed the recognition of seven groups with different rank and origin within the coal sample set.
未燃烧的煤颗粒和相关多环芳烃（PAHs）的释放可能对环境造成不利影响。本研究评估了来自全球 11 个煤盆地的 50 个煤样中 PAHs 浓度和组成的变化。在单一盆地的高挥发分烟煤样品中记录到最高的 PAH 浓度。考虑整个样本集，实际上在该等级范围之外发现了最高的 PAH 浓度，这表明煤岩组成，因此煤的来源也影响了 PAH 浓度。对 PAH 组成的检查表明，烷基化的 2-3 环 PAHs 仍然是主要化合物，无论煤的等级或来源如何。基于 PAH 和煤岩成分、总量和成熟度参数的多元分析，允许在煤样本集中识别出具有不同等级和来源的七个组。
