| Title |
Degradation Characeristics of Fenitrothion |
| Authors |
이용두(Yong Doo Lee),이기호(Ki Ho Lee),김현희(Hyun Hee Kim) |
| Abstract |
In order to evaluate the degradation of pesticides in the water environment, the effects of water temperature, photolysis, pH condition and deactivation of Fenitrothion was investigated in the laboratory experiment. The Fenitrothion was eluded with n-hexan and analysed by FPD-GC. Results showed that the degradation rate increased with water temperature and the Fenitrothion was the most readily decomposable by photolysis. Degradation rate of Fenitrothion by hydrolysis at 30℃ in the buffer solution of pH 3, pH 5, pH 7, pH 9 and pH 11 was 50, 53, 57, 62, 76%, respectively, and the Fenitrothion was unstable in alkaline solution. Fenitrothion was degraded 1.4∼1.8 times faster at 30℃ than at 10℃. Degradation rate of Fenitrothion were 62% under the dark condition and 74% under sunlight at pH 11. Fenitrothion was rapidly degraded at higher Temperature and decomposed faster in the alkaline solution of pH 11 than in the acidic solution of pH 3. |