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In order to identify the pollution characteristics and carcinogenic risk of oxygenated polycyclic aromatic hydrocarbons（OPAHs）in the environmental media in the coking plants, vegetation, soil and ambient air samples were collected in JD and PF coking plants. Four species of OPAHs, including 1-acenaphthenone（1-ANO）, 9-fluorenone（9-FLU）, 9, 10-anthraquinone（9, 10-ATQ）, and benzanthrone（BZO）, were detected using gas chromatography-mass spectrometry detector（GC-MSD）. The results showed that the concentrations of Σ4OPAHs in vegetations, soils, and ambient air in PF plant were higher than those in JD plant, respectively, and 9-FLU and 9, 10-ATQ were dominated in the environmental media in both plants. The fugacity of ambient air-soil showed that 9-FLU was in equilibrium between the air and soil, and 9, 10-ATQ released from soil into the air in PF plant. Human health risks were assessed for adults through ingestion, dermal contact and inhalation. The carcinogenic risks of OPAHs in the soils in JD and PF plants were acceptable for adults, and the carcinogenic risks of OPAHs in the ambient air in both plants were also acceptable for adults. The results provide a basis for the formulation of OPAH prevention and control measures.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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