| LAS和KMnO4对黑斑蛙蝌蚪的毒性研究 |
| Acute Toxicity and Combined Toxicity of LAS and ＫＭｎＯ４on Rana nigromaculata Tadpoles |
| 投稿时间：2007-12-24 |
| DOI： |
| 中文关键词:黑斑蛙蝌蚪 ＬＡＳ ＫＭｎＯ４ ＬＣ５０ 急性毒性 联合毒性 |
| 英文关键词:Rana nigromaculata tadpoles alkylbenzene sulphonate （LAS） potassium permanganate （KMnO4） median lethal concentration （LC50） acute toxicity combined toxicity |
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| 中文摘要: |
| 在实验条件下，用水毒理学方法研究直链烷基苯磺酸钠（ＬＡＳ）、高锰酸钾（ＫＭｎＯ４）对黑斑蛙蝌蚪的急性毒性和联合毒性，并由此推断２者对水生生态系统的潜在危害。试验采用９６ｈ静水式实验法，急性毒性实验结果表明：ＬＡＳ、ＫＭｎＯ４对黑斑蛙蝌蚪的急性毒性顺序为ＫＭｎＯ４＞ＬＡＳ，ＬＡＳ、ＫＭｎＯ４等２种实验试剂对黑斑蛙蝌蚪２４ｈ的ＬＣ５０分别为１１．６ｍｇ／Ｌ和３．６７ｍｇ／Ｌ；４８ｈ的ＬＣ５０分别为１０．０ｍｇ／Ｌ和３．１５ｍｇ／Ｌ；９６ｈ的ＬＣ５０分别为８．５７ｍｇ／Ｌ和２．１７ｍｇ／Ｌ。联合毒性实验结果表明，ＬＡＳ－ＫＭｎＯ４对黑斑蛙蝌蚪的联合毒性在２４、４８、９６ｈ的相加指数ＡＩ＞０，均表现出协同作用。
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| 英文摘要: |
| In this study, the acute and combined toxicities of alkylbenzene sulphonate （LAS） and potassium permanganate （ KMnO4 ） on Rana nigromaculata tadpoles were determined by an aquatic toxicity method to assess their toxic effects on aquatic animals and their potential hazards to aquatic ecosystem. The acute toxicity results in water for 96 hours showed that the toxicity of LAS and KMnO4 to tadpoles was KMnO4 〉 LAS. The LC50 at 24 h, 48 h and 96h for LAS were 11.6, 10.0, and 8.57 mg/L respectively, while the LCs0 of KMnO4 were 3.67, 3.15, and 2.17mg/L for the same time periods. The combined toxicity results showed that at 24 h, 48 h and 96 h AI 〉0, the joint toxicities of LAS and KMnO4 had a synergistic action. According to these results, the toxicity of noxious substances is generally based on the LC50 at 96 h. |
| 彭德姣,陈琳,陈义光,刘祝祥,蒋拥东.2009.LAS和KMnO4对黑斑蛙蝌蚪的毒性研究[J].水生态学杂志,30(1):36-39. |
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