CAJ | 학술논문

为探讨氟对中华圆田螺（Cipangopaludina cahayensis）的生态毒性效应，采用静态生物急性毒性试验方法，研究了水环境中不同浓度氟暴露对中华圆田螺的急性毒性效应。结果表明，氟离子溶液暴露下的中华圆田螺显示出不同程度的氟中毒症状，且随着氟离子浓度的增加与暴露时间的延长，死亡率也相应增加，存在明显的剂量效应关系和时间效应关系。氟对中华圆田螺24、48、72、96 h的半数致死浓度（LC50）分别为694.12、642.11、542.11、480.77 mg/L。通过回归方程计算，得出氟对中华圆田螺的安全浓度为48.08 mg/L。根据急性毒性的分级标准，氟对中华圆田螺的毒性为低毒。
위탐토불대중화원전라（Cipangopaludina cahayensis）적생태독성효응，채용정태생물급성독성시험방법，연구료수배경중불동농도불폭로대중화원전라적급성독성효응。결과표명，불리자용액폭로하적중화원전라현시출불동정도적불중독증상，차수착불리자농도적증가여폭로시간적연장，사망솔야상응증가，존재명현적제량효응관계화시간효응관계。불대중화원전라24、48、72、96 h적반수치사농도（LC50）분별위694.12、642.11、542.11、480.77 mg/L。통과회귀방정계산，득출불대중화원전라적안전농도위48.08 mg/L。근거급성독성적분급표준，불대중화원전라적독성위저독。
In order to investigate the effect of fluoride on ecological toxicity of Cipangopaludina cahayensis, the acute toxicity effect of different concentrations fluoride exposure in water environment on Cipangopaludina cahayensis were determined by static biological toxicity test. The Cipangopaludina cahayensis showed fluorosis symptoms with different degrees when they were exposed to fluoride solution. With the increase of the fluoride concentration and the passage of exposure time, the death rate of Cipangopaludina cahayensis was increased, which exhibited an obvious dose -response relationship and time -response relationship. The median lethal concentration (LC50) of fluoride of 24, 48, 72 and 96 h on Cipangopaludina cahayensis were 694.12, 642.11, 542.11 and 480.77 mg/L, respectively. The safe concentration of fluoride on Cipangopaludina cahayensis was calculated as 48.08 mg/L by the established regression equation. According to the acute toxicity grading standard, the fluoride was low toxic to Cipangopaludina cahayensis.