1,2,4-TCB在模拟水环境中水体与铜钱草之间的迁移分布

Transfer and distribution of 1,2,4-TCB in water and Hydrocotyle vulgaris L. of simulated micro-cosmos system

对1,2,4-TCB在模拟水环境和铜钱草之间的迁移分布进行研究。结果显示:水环境中的1,2,4-TCB有66.7%在10 d内挥发掉,剩余的1,2,4-TCB向不同生物体内转移或代谢,保留在水体中的1,2,4-TCB浓度相对比较稳定,难于降解。铜钱草对1,2,4-TCB有一定程度的吸收,其吸附过程是一个物理吸附过程,10 d时1,2,4-TCB含量在植物体内达到最高随后又降低,15 d后维持在平衡状态。

The paper studied the transfer and distribution of 1,2,4-TCB in water and Hydrocotyle vulgaris L. of simulated micro-cosmos system.The results showed that 66.7% of 1, 2, 4-TCB volatilized to atmosphere in ten days, and the rest was transferred to different organisms.The residual 1,2,4-TCB in water remains relatively stable, nonbiodegradable. Some of them were transfered to H. vulgaris L.The process of transfer was a physical adsorption process. The content of 1,2,4-TCB reached the highest value in 10 days, then decreased gradually. The contents of 1,2,4-TCB in H. vulgaris L. reached balance in 15 days.