Occurrence and ecological risk assessment of antibiotics in manure and the surrounding soil from typical chicken farms in Hangzhou, China

Frontiers in Environmental Science

Environmental Science

Tiefeng Zhou¹  Lei Zhang²  Huanhuan Wang²  Jinghui Fan²  Qinghai Li²  Yinghui Wei²  Weiwu Zhang²  Hang Liu²  Ying Ge²  Yi Chen³  Yan Zha⁴  Chengxian Zhang⁵ 

[1] Hangzhou Academy of Agricultural Sciences, Hangzhou, China;Hangzhou Agricultural Technology Extension Center, Institute of Husbandry, Hangzhou, China;Institute of Fishers Institute, Hangzhou Academy of Agricultural Sciences, Hangzhou, China;Laboratory of Molecular Biology, Institute of Crop and Ecology, Hangzhou Academy of Agricultural Sciences, Hangzhou, China;Zhejiang Everbright Agricultural Science and Technology Development Co., Ltd., Hangzhou, China;

关键词: antibiotics;    manure;    soil;    chicken farm;    risk assessment;   

DOI  :  10.3389/fenvs.2023.1241405

 received in 2023-06-16, accepted in 2023-09-28,  发布年份 2023

来源: Frontiers

【 摘 要 】

The widespread use of antibiotics in animal and human medication has raised global concerns over environmental contamination caused by antibiotic residues. This research investigated the occurrence of 12 kinds of antibiotics belonging to three groups, sulfonamides (SAs), tetracyclines (TCs), and fluoroquinolones (FQs), in chicken manure and the surrounding soil from different chicken farms in Hangzhou, South China, were detected in the samples via ultra-performance liquid chromatography-mass spectrometry (UPLC-MS/MS) and the contamination characteristics of each type of antibiotic and the correlations between each antibiotic and environmental factors were analyzed to identify the key influencing factors. An ecological risk assessment of antibiotics in the soil environment was conducted using the risk quotient (RQ) method to analyze the potential hazard level. The results indicated that: the total concentration of FQs was much higher than those of SAs and TCs in chicken manures and the soil samples. The mean concentration of FQs (39.17 μg·kg–1), TCs (34.37 μg·kg–1), and SAs (20.24 μg·kg–1) in chicken manure were significantly higher than those in the soil samples. Ciprofloxacin (CIP) was the main antibiotics detected in manure (19.42 μg·kg–1) and the soils samples (near soil: 18.42 μg·kg–1, far soil: 10.29 μg·kg–1), followed by enrofloxacin (ENR), tetracycline (TC), and ofloxacin (OFL). The redundancy analysis (RDA) showed that moisture content (MS), total organic carbon (TOC) and total nitrogen (TN) had a greater influence on the antibiotic concentration in the soil samples. Basis on the calculated risk quotient (RQs) values, the risk assessment indicated Sulfamerazine (SD) and Sulfamethoxazole (SMX) in soil posed a high risk, while trimethoprim (TMP), TC, CIP, and OFL in soils posed a medium or low risk. This research provides control and environmental monitoring data about chicken farms and scientific information that can be used to alleviate antibiotics pollution.

【 授权许可】

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Copyright © 2023 Zha, Li, Liu, Ge, Wei, Wang, Zhang, Fan, Chen, Zhang, Zhou and Zhang.