[几种典型中国地表水环境抗生素污染现状及生态风险评估]

[Status of Antibiotic Contamination and Ecological Risks Assessment of Several Typical Chinese Surface-Water Environments].

作者信息

Liu Xi, Wang Zhi, Wang Xue-Lei, Li Zhen, Yang Chao, Li En-Hua, Wei Hui-Min

机构信息

Key Laboratory for Environment and Disaster Monitoring and Evaluation of Hubei Province, Institute of Geodesy and Geophysics, Chinese Academy of Sciences, Wuhan 430061, China.

University of Chinese Academy of Sciences, Beijing 100049, China.

出版信息

Huan Jing Ke Xue. 2019 May 8;40(5):2094-2100. doi: 10.13227/j.hjkx.201808105.

DOI:10.13227/j.hjkx.201808105

PMID:31087845

Abstract

To learn about the status of antibiotic contamination and their ecological risks in Chinese surface-water environments, the risk quotient (RQ) and joint risk quotient (RQ) methods were applied to assess the ecological risks of five typical surface-water environments in China during the flood season. The results showed that the main types of antibiotic contamination in the five regions were sulfamethoxazole (SMX), sulfamethazine (SM), erythromycin (ETM), roxithromycin (RTM), tetracycline (TC), oxytetracycline (OTC), norfloxacin (NOR), and ofloxacin (OFL). Among eight types of antibiotic contamination, sulfamethoxazole (SMX) and erythromycin (ETM) occupied a dominant position. The contribution rate of SMX in the Yangtze River Delta and Chaohu Basin was 91.1% and 98.5%, respectively. Meanwhile, the contribution rates of ETM in Jianghan Plain, Pearl River Delta, and Yellow River Delta were 94.4%, 81.8%, and 60%, respectively. Based on the joint risk quotients (RQ), the order of ecological risks in the research areas was:Jianghan Plain (20.204) > Yangtze River Delta (8.769) > Chaohu Basin (2.692) > Yellow River Delta (1.943) > Pearl River Delta (1.222).

摘要

为了解中国地表水环境中抗生素污染状况及其生态风险，采用风险商数（RQ）和联合风险商数（RQ）方法对中国五个典型地表水环境在汛期的生态风险进行评估。结果表明，五个区域抗生素污染的主要类型为磺胺甲恶唑（SMX）、磺胺二甲嘧啶（SM）、红霉素（ETM）、罗红霉素（RTM）、四环素（TC）、土霉素（OTC）、诺氟沙星（NOR）和氧氟沙星（OFL）。在八种抗生素污染类型中，磺胺甲恶唑（SMX）和红霉素（ETM）占主导地位。SMX在长江三角洲和巢湖流域的贡献率分别为91.1%和98.5%。同时，ETM在江汉平原、珠江三角洲和黄河三角洲的贡献率分别为94.4%、81.8%和60%。基于联合风险商数（RQ），研究区域生态风险顺序为：江汉平原（20.204）＞长江三角洲（8.769）＞巢湖流域（2.692）＞黄河三角洲（1.943）＞珠江三角洲（1.222）。