Discharge of swine wastes risks water quality and food safety: Antibiotics and antibiotic resistance genes from swine sources to the receiving environments |
| |
| Institution: | 1. Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Beijing 100085, China;2. University of Chinese Academy of Sciences, 19A Yu-quan Road, Beijing 100049, China;1. Agriculture and Agri-Food Canada, London, ON N5V 4T3, Canada;2. Graduate School at Shenzhen, Tsinghua University, China;3. Environmental Biotechnology Laboratory, University of Hong Kong, Hong Kong;4. University of Western Ontario, London, Ontario, Canada;1. School of Earth Science and Environmental Engineering, Gwang-ju Institute of Science and Technology (GIST), 123, Cheomdangwagi-ro, Buk-gu, Gwang-ju 61005, Republic of Korea;2. School of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), 77, Cheongam-Ro, Nam-Gu, Pohang, Gyeongbuk 37673, Republic of Korea |
| |
| Abstract: | Swine feedlots are widely considered as a potential hotspot for promoting the dissemination of antibiotic resistance genes (ARGs) in the environment. ARGs could enter the environment via discharge of animal wastes, thus resulting in contamination of soil, water, and food. We investigated the dissemination and diversification of 22 ARGs conferring resistance to sulfonamides, tetracyclines, chloramphenicols, and macrolides as well as the occurrence of 18 corresponding antibiotics from three swine feedlots to the receiving water, soil environments and vegetables. Most ARGs and antibiotics survived the on-farm waste treatment processes in the three swine farms. Elevated diversity of ARGs was observed in the receiving environments including river water and vegetable field soils when compared with respective controls. The variation of ARGs along the vertical soil profiles of vegetable fields indicated enrichment and migration of ARGs. Detection of various ARGs and antibiotic residues in vegetables fertilized by swine wastes could be of great concern to the general public. This research demonstrated the contribution of swine wastes to the occurrence and development of antibiotic resistance determinants in the receiving environments and potential risks to food safety and human health. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
