生态与农村环境学报 ›› 2023, Vol. 39 ›› Issue (6): 774-780.doi: 10.19741/j.issn.1673-4831.2022.0273

• 自然保护与生态 • 上一篇    下一篇

应用物种敏感性分布评价高铁酸钾对淡水水产养殖生物的生态风险

曹国庆1, 殷玉婷1, 王新池1, 宋超1,2,3,4,5, 杜立志5, 张建桥5   

  1. 1. 南京农业大学无锡渔业学院, 江苏 无锡 214081;
    2. 中国水产科学研究院淡水渔业研究中心, 江苏 无锡 214081;
    3. 农业农村部水产品质量安全环境因子风险评估实验室(无锡), 江苏 无锡 214081;
    4. 农业农村部水产品质量安全控制重点实验室, 北京 100141;
    5. 山东得和生物技术集团有限公司, 河北 潍坊 261309
  • 收稿日期:2022-03-31 发布日期:2023-06-19
  • 通讯作者: 宋超,E-mail:songc@ffrc.cn E-mail:songc@ffrc.cn
  • 作者简介:曹国庆(1998-),男,江苏淮安人,主要研究方向为环境毒理学。E-mail:2466880614@qq.com
  • 基金资助:
    农业农村部水产品质量安全控制重点实验室开放课题(2021002);中国水产科学研究院淡水渔业研究中心基本科研业务费(2021JBFM18)

Assessing Ecological Risks of Potassium Ferrate to Freshwater Aquaculture Organisms by Species Sensitivity Distribution

CAO Guo-qing1, YIN Yu-ting1, WANG Xin-chi1, SONG Chao1,2,3,4,5, DU Li-zhi5, ZHAN Jian-qiao5   

  1. 1. Wuxi Fishery College, Nanjing Agricultural University, Wuxi 214081, China;
    2. Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China;
    3. Laboratory of Quality & Safety Risk Assessment for Aquatic Products on Environmental Factors(Wuxi), Ministry of Agriculture and Rural Affairs, Wuxi 214081, China;
    4. Key Laboratory of Control of Quality and Safety for Aquatic Products, Ministry of Agriculture and Rural Affairs, Beijing 100141, China;
    5. Shandong Dehe Technology Group Ltd., Weifang 261309, China
  • Received:2022-03-31 Published:2023-06-19

摘要: 高铁酸钾作为水质改良剂,在水产行业中已经被广泛使用,但高铁酸钾使用的安全性与淡水水产养殖生物基准值一直不明确。利用物种敏感度分布法(species sensitivity distribution, SSD)来推导高铁酸钾淡水水产养殖生物基准值,评价高铁酸钾对淡水水产养殖生物的生态风险,通过急性毒性试验法获取高铁酸钾对14种淡水水生生物的急性毒性值;选取6种拟合模型来拟合毒性数据,通过比较回归系数和残差平方和来确定拟合优度最佳的模型;推导高铁酸钾对不同类生物的5%危害浓度HC5阈值(hazardous concentration for 5% the species)以及高铁酸钾淡水水产养殖生物及淡水水生生物基准值;结合SSD模型计算高铁酸钾对淡水水产养殖生物的潜在影响比例(potentially affected fraction, PAF)。结果显示,Sigmoid模型拟合优度最佳,高铁酸钾对全部淡水水生生物的安全基准值为6.82 mg·L-1,对水产养殖生物的安全基准值为9.53 mg·L-1;日常水产养殖高铁酸钾使用的浓度值所对应PAF值为0,生态风险低。研究结果可为高铁酸钾淡水水产养殖生物基准值制定以及安全使用提供科学依据以及理论指导。

关键词: 高铁酸钾, 水质基准, 物种敏感度分布法, 急性毒性试验

Abstract: Potassium ferrate has been widely used as a water quality improver in aquatic industry, but the safety of its use and the reference value of freshwater aquaculture organisms have been unclear. In this study, the species sensitivity distribution (SSD) method was used to determine the reference value of potassium ferrate and evaluate the ecological risk of potassium ferrate to freshwater aquaculture organisms. The acute toxicity of potassium ferrate to 14 freshwater aquatic organisms was obtained by acute toxicity test. Six fitting models were selected to fit the toxicity data, and the regression coefficient and residual sum of squares were compared to determine the model with the best goodness of fit. The HC5 threshold (hazardous concentration for 5% of the species) of potassium ferrate for different species and the reference value of potassium ferrate for freshwater aquaculture organisms and freshwater aquatic organism were derived. The potentially affected fraction (PAF) of potassium ferrate on freshwater aquaculture organisms was calculated by using the SSD model. The results show that: (1) The sigmoid model had the best goodness of fit, and the basic safety value of potassium ferrate for all freshwater aquatic organisms was 6.82 mg·L-1, and for freshwater aquaculture organisms was 9.53 mg·L-1. (2) The PAF value corresponding to the concentration value of potassium ferrate used in daily aquaculture is 0, indicating low ecological risk. The results can provide scientific basis and theoretical guidance for the formulation of reference value of potassium ferrate in freshwater aquaculture organisms and the safe use of potassium ferrate.

Key words: potassium ferrate, water quality benchmark, species sensitivity distribution, acute toxicity test

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