Full
Outline
To determine the concentrations of 24 per- and polyfluoroalkyl substances (PAFs) in marine and freshwater shrimp sold in Tianjin and to characterize their pollution profiles.
The concentrations of PFASs in the samples was determined by UPLC-MS/MS. Descriptive statistics were applied, and non-parametric tests were used to compare concentrations.
A total of 67 samples of marine shrimp and 105 samples of freshwater shrimp were tested. A total of 14 kinds of PFASs were detected in marine shrimp, and the ∑PFASs concentration ranged from 0.160 to 43.4 μg/kg. The overall detection rate of PFASs pollutants was 100%. 17 kinds of PFASs were detected in freshwater shrimp, and the ∑PFASs concentration ranged from 0.135 to 27.9 μg/kg. The overall detection rate of PFASs pollutants was 99%. The main detected components in the two types of shrimp aquatic products were all long-chain PFASs. The number of PFASs detected in a single sample of marine shrimp ranged from 1 to 11, while that in a single sample of freshwater shrimp ranged from 0 to 13. Among them, PFOS, PFOA and PFNA were the main pollutant components, while 6:2Cl-PFESA and 8:2Cl-PFESA were both detected to a certain extent. Through comparison, it was found that the pollution of river shrimp among freshwater shrimp was relatively serious.
There is a certain degree of PFASs pollution in the shrimp aquatic products sold in Tianjin. In-depth research, attention and strengthened management should be carried out.
30
15
| 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 |
关闭全屏
No. 86 Xueyuan South Road, Haidian District, Beijing
010-62662699(Operation and Technical Support)
qkjq@cast.org.cn
Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House
