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Objective To investigate the pollution status of perfluorinated compounds (PFCs) in commercial fish in Liaoning coastal areas. Methods The 6 species of marine commercial fish were collected from 4 coastal areas in Liaoning, including Lvshun, Zhuanghe, Yingkou, and Jinzhou. A standardized pre-processing procedure for marine fish samples was established. PFCs were detected using liquid chromatography-tandem mass spectrometry. The pollution levels of PFCs in the commercial fish were assessed, and the bioaccumulation risk analysis was conducted. Results The main PFCs pollutants in economic fish species in sea were perfluorooctanoic acid (PFOA) and perfluorooctane sulfonates (PFOS). PFOA was detected in all fish samples, with maximum and minimum concentrations of 30.30 ng/g ww and 4.02 ng/g ww, respectively. PFOS was detected in 100% of fish viscera samples but was not found in muscle tissues. Among the tested species, Sebastodes fuscescens, Hexagrammos otakii, and Larimichthys polyactis were more prone to accumulating PFOS and PFOA, indicating potential bioaccumulation effects. Conclusion PFCs contamination is widespread in commercial fish. Continuous monitoring of PFCs shall be implemented, and control measures shall be taken in areas with severe PFOS and PFOA pollution. Ongoing monitoring and risk analysis of these pollutants are essential.
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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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