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선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- As a means of controlling the sensitivity of D. magna and the reliability of the experimental protocol, an internal control test was performed with each series of tests in standard test conditions; potassium dichromate (K2Cr2O7) was used as a reference toxicant. The test was performed with nominal concentrations of 0.
- In conclusion, this study provided the harmfulness of the alkali leaching from concrete in aquatic environment and the usefulness of D. magna to evaluate the toxicity of leachates from concrete.
- The purpose of this study, therefore, was to evaluate the usage of eco-toxicity assays with D. magna in water contaminated with alkali leaching of concrete. To reduce toxicity, in additionally, the effect of loess as the eco-friend admixture was evaluated.
- Temperature and photoperiod were as described in Table 2. The test solutions were diluted by hard water with concentrations of 100, 50, 25, 12.5 and 6.25%. In each concentration four replicates were performed and each containing 5 neonates in 50 ml of test solution.
- magna and the reliability of the experimental protocol, an internal control test was performed with each series of tests in standard test conditions; potassium dichromate (K2Cr2O7) was used as a reference toxicant. The test was performed with nominal concentrations of 0.5, 1.0, 2.0, 3.0 and 4.0 mg/L. In each test item concentration four replicates were maintained and each containing 5 neonates in 50 ml of medium.
대상 데이터
- All experiments were carried out with brood neonates (< 24 hrs old).
- The alkali leaching specimen was prepared from the mixture of Ordinary Portland Cement (OPC) and pozzolanic admixture. The specimens were made with not only cement and water but also the admixture instead of cement.
- The alkali leaching specimen was prepared from the mixture of Ordinary Portland Cement (OPC) and pozzolanic admixture. The specimens were made with not only cement and water but also the admixture instead of cement. The ratio of cement to water was 10:3, 10:4 and 10:5, respectively.
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