淮河流域土霉素水质基准及生态风险评估  

Oxytetracycline water quality benchmark and ecological risk assessment in the Huaihe River Basin

作　　者：谷立坤[1] 任张航 刘萌硕 程君怡 郑元林 彭赵旭 王莉[2] 张建云[1] GU Li-kun;REN Zhang-hang;LIU Meng-shuo;CHENG Jun-yi;ZHENG Yuan-lin;PENG Zhao-xu;WANG Li;ZHANG Jian-yun(School of Environment and Bioengineering,Henan University of Engineering,Zhengzhou 450001,China;School of Ecology and Environment,Zhengzhou University,Zhengzhou 450001,China;School of Water Conservancy and Civil Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]河南工程学院环境与生物工程学院,河南郑州450001 [2]郑州大学生态与环境学院,河南郑州450001 [3]郑州大学水利与土木工程学院,河南郑州450001

出　　处：《环境生态学》2024年第10期68-74,135,共8页Environmental Ecology

基　　金：国家水体污染控制与治理科技重大专项(2015ZX07204-002-05);河南省重点研发与推广专项(232102320081)资助。

摘　　要：土霉素是最常见的四环素类药物之一,在畜牧业中应用广泛。规模化养殖企业废水达标排放,抗生素浓度不是必测指标,可能危害地表水生态系统。目前我国抗生素水质标准制定存在缺失,淮河流域土霉素标准限值、土霉素浓度、生态风险评估相关研究少,尚未以保护该流域水生生物为目标开展水质基准相关研究。本研究采用物种敏感度分布法,基于大型溞、鲤鱼、普通水螅等6门9科11种急性毒性数据,推导出土霉素淡水生物短期水质基准为92.52μg/L,基于模糊网纹溞、臂尾轮虫、大型溞、四尾栅藻、普通水螅等6门10科10种慢性毒性数据,推导出土霉素淡水生物长期水质基准为75.85μg/L,建议土霉素长期水质基准75.85μg/L作为淮河流域土霉素标准值。生态风险评估结果显示淮河流域层面土霉素不对河流生物完整性构成威胁,但畜牧业发达地区水环境土霉素均值显著偏高,需加大对养殖企业排口附近水域或河流枯水季等稀释比较小季节土霉素的检测与控制,减少对水生生物完整性冲击。Oxytetracycline is one of the most common tetracyclines and is widely used in animal husbandry.Large-scale aquaculture enterprises discharge wastewater up to standard,antibiotic concentration is not a mandatory index,may harm the surface water ecosystem.At present,there are deficiencies in the formulation of antibiotic water quality standards in China,and there are few studies on oxytetracycline standard limits,oxytetracycline concentrations,and ecological risk assessment in the Huaihe River Basin,and no relevant research on water quality benchmarks has been carried out with the goal of protecting aquatic organisms in the basin.In this study,based on the acute toxicity data of 11 species in 9 families and 6 phyla,including Phyllum magnum,carp and common hydroid,the short-term water quality benchmark of oxytetracycline freshwater organisms was 92.52μg/L,based on the chronic toxicity data of 10 families and 6 phyla,including Fuzzy Reticulata,Brachiocorbata rotifer,Dioma macrovis,Tetracyclia tetracycla,and Hydra vulgaris,the long-term water quality benchmark of oxytetracycline freshwater organisms was 75.85μg/L,the recommended long-term water quality benchmark of oxytetracycline was 75.85μg/L was used as the standard value of oxytetracycline in the Huaihe River Basin.The results of ecological risk assessment showed that oxytetracycline did not pose a threat to the integrity of river organisms at the Huaihe River Basin,but the mean value of oxytetracycline in the water environment in developed animal husbandry areas was significantly high,so it was necessary to increase the detection and control of oxytetracycline in the waters near the outlets of aquaculture enterprises or in the dry season of rivers and other seasons with small dilution,so as to reduce the impact on the integrity of aquatic organisms.

关 键 词：土霉素 淮河流域 水生生物基准 急慢性毒性 生态风险评估 

分 类 号：X52[环境科学与工程—环境工程] X171.5X826