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Distributions of Polycyclic Aromatic Hydrocarbons in Coal in China
School of Environmental Science and Spatial Informatics, China University of Mining and Technology, Xuzhou, China
Low Carbon Energy Institute, China University of Mining and Technology, Xuzhou, China
China University of Mining and Technology
Final revision date: 2018-04-01
Online publication date: 2018-12-13
Pol. J. Environ. Stud. 2019;28(3):1665–1674
Groundwater level rises rapidly when mine drainage systems stop functioning after mine closures. Free-form polycyclic aromatic hydrocarbons (PAHs) in residual pillaring and abandoned mining levels could continue to migrate because of eluviation leaching. Moreover, other aquifers are polluted with mine water through mining-induced fractures, faults, and poorly sealed drill holes. Therefore, the distributions of 16-PAHs in raw coal mined in China and the factors influencing these distributions were analyzed to assist mine closures. The results showed that the average concentration of PAHs was 10.540±7.973 ug/g in the raw coal samples, and PAHs with low molecular weights had the highest abundances, accounting for 44% of the total PAH concentration obtained. The highest concentration of 16-PAHs was observed in bituminous coals, followed by that in lignite, and the lowest is anthracite. The influence factors analysis reveals that carbon content, volatile matter, H/C, and O/C have a significant effect on PAH content in raw coals. The volatile matter and molar ratio of H/C play a leading role in the changing process in 16 PAHs, accounting for more than 60% of the total contribution.
Polycyclic Aromatic Hydrocarbons in Home-Grown Allium Fistulosum from an Industrial City of China: Concentrations, Source and Cancer Risks
Spatial-Temporal Evolution and Spillover Effect of Industrial Eco-Efficiency in Huaihe River Economic Belt
Polycyclic Aromatic Hydrocarbons in Weihe River, a Typical River in Arid and Semi-Arid Region of Northwest China: Trends of Pollution and Risk
Pollution Characteristics of Polycyclic Aromatic Hydrocarbons in Unsaturated Zone of the Different Workshops at a Large Iron and Steel Industrial Site of Beijing, China
Epidemiological and Clinical Aspects of Scorpion Stings in Kurdistan Region of Iraq
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