CAJ | 학술논문

研究了23～25℃下2、5、10、20日和30日龄卤虫对钻井液的96 h毒性耐受力的差异。试验结果表明，随着试验时间的延长，不同质量浓度钻井液对卤虫死亡率的影响差异性逐渐增大，试验96 h时，除钻井液质量浓度为2000 mg／L组与对照组死亡率差异不显著外，4000、6000、8000、10000 mg／L质量浓度组均与对照组差异显著（ P＜0．05）；2、5、10、20日和30日龄卤虫的96 h半致死质量浓度分别为3464、3488、3452、4811、2592 m g／L ，随着试验时间的延长，各日龄卤虫之间的死亡率差异逐渐降低。
연구료23～25℃하2、5、10、20일화30일령서충대찬정액적96 h독성내수력적차이。시험결과표명，수착시험시간적연장，불동질량농도찬정액대서충사망솔적영향차이성축점증대，시험96 h시，제찬정액질량농도위2000 mg／L조여대조조사망솔차이불현저외，4000、6000、8000、10000 mg／L질량농도조균여대조조차이현저（ P＜0．05）；2、5、10、20일화30일령서충적96 h반치사질량농도분별위3464、3488、3452、4811、2592 m g／L ，수착시험시간적연장，각일령서충지간적사망솔차이축점강저。
The 96h biological toxicity of drilling effluent to two ,five ,ten ,twenty and thirty day old brine shrimp A rtemia saline was studied at water temperature from 23 ℃ to 25 ℃ .The results showed that the differences in mortality of the brine shrimp caused by different concentrations of drilling effluent were found to be increased with the test period elapse .There were significant differences in mortality between the second ,third ,fourth and fifth brime shrimp groups and the control group (P< 0 .05) ,except for between the first group and the control group in 96 h test .The 96 h LC50 was found to be 3464 mg/L in 2 day old A rtemia ,3488 mg/L in 5 day old A rtemia ,3452 mg/L in 10 day old A rtemia ,4811 mg/L in 20 day old A rtemia ,and 2592 mg/L in 30 day old A rtemia ,with the test time elapse ,the differences in mortality being decreased among all age A rtemia .