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| Concentrations and Distributions of Tetracycline Antibiotics in Soils of Green and Organic Vegetable Fields in Guangzhou, China |
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| KeyWord:green vegetable field; organic vegetable field; tetracycline antibiotics; soil pollution |
| Author Name | Affiliation | | TAI Yi-ping | South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China
University of Chinese Academy of Sciences, Beijing 100049, China
Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China | | MO Ce-hui | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China | | LI Yan-wen | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China | | WU Xiao-lian | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China | | HUANG Xian-pei | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China | | XIANG Lei | Key Laboratory of Water/Soil Toxic Pollutants Control and Bioremediation of Guangdong Higher Education Institution, Department of Environmental Engineering, Jinan University, Guangzhou 510632, China |
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| Abstract: |
| Extensive uses of tetracycline antibiotics（TCs） in animal production have caused soil contamination via manure applications. In this study, we investigated the concentrations and distributions of four TCs including tetracycline, oxytetracycline, chlortetracycline and deoxytetracycline in soils from green and organic vegetable fields in Guangzhou using high performance liquid chromatography-electrospray ionization tandem mass spectrometry（HPLC-MS/MS）. Total concentrations of these four TCs ranged from 0.11 μg·kg-1 to 48.45 μg·kg-1, averaging at 12.64 μg·kg-1. Detection frequencies were 69% to 92% for the soil samples. The average concentration of individual antibiotics was from 0.98 μg·kg-1 to 6.59 μg·kg-1, dominanet with oxytetracycline. Higher TCs concentrations were found in organic than in green vegetable fields. Concentrations and composition of tetracycline compounds in soils were different among different varieties or genotype of vegetables. So far the ecological risk of these four TCs in the soils was low as their concentrations were well below the ecotoxic effect trigger value（100 μg·kg-1） set by the Steering Committee of Veterinary International Committee on Harmonization. Further investigation including environmental fate, plant uptake, and human exposure to antibiotics via plant-derived food should be conducted. |
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