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Objective To study the distribution characteristics and health risk exposure levels of 6 kinds of common quinolone antibiotics in poultry eggs and chicken meat in Inner Mongolia. Methods The content of norfloxacin, enrofloxacin, ofloxacin, pefloxacin, ciprofloxacin and lomefloxacin in poultry eggs and chicken samples randomly collected from some cities in the region. In 2021, 2022 and 2024 were determined by isotope internal standard, solid phase extraction, ultra performance liquid chromatography-tandem mass spectrometry, the data of quinolone residues in poultry eggs and chicken in the whole region were statistically analyzed, according to the reference value of different age groups dietary intake and detected data, the hazard quotient of each age group was calculated and the health risk to the population was analyzed. Results In 2021, the detection rate of poultry eggs was 5.00% (3/60), the exposure levels was 0.09-0.52 μg/(kg·d), and the hazard quotient was 0.004-0.021; the detection rate of chicken was 16.70% (10/60), the exposure levels was 0.23-12.39 μg/(kg·d), and the hazard quotient was 0.009-0.492. In 2022, the detection rate of poultry eggs was 6.25% (5/80), the exposure levels was 0.09-0.49 μg/(kg·d), and the hazard quotient was 0.004-0.019; the detection rate of of chicken was 3.75% (3/80), the exposure levels was 0.01-0.68 μg/(kg·d), and the hazard quotient was 0.0004-0.0270. In 2024, the detection rate of poultry eggs was 3.33% (4/120), the exposure levels was 0.13-0.70 μg/(kg·d), and the hazard quotient was 0.005-0.028; the detection rate of chicken was 6.36% (7/110), the exposure levels was 0.03-1.58 μg/(kg·d), and the hazard quotient was 0.001-0.063. Conclusion The 3 years of analysis data shows that quinolone antibiotics are detected in poultry eggs or chicken almost all cities, the average detected in chicken is higher than that in poultry eggs. The exposure risk of quinolone antibiotics in poultry eggs and chicken in 4 age groups is less than 1 and the health risk is small.
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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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