单甲脒等有机污染物多介质环境的稳态平衡模型构建

本文对单甲脒等２０种有机污染物进行了物化参数（Ｄｏｗ蒸汽压，水溶度，Ｄｏｃ和ＢＣＦ）的估计，针对池塘和农田２个生态系统构建了稳态平衡逸度多介质环境数学模型，模型研究的初步结果表明，该模型用于预测有机污染物在稳平衡条件下多介质环境中深度的分布有一定意义。对于大多数憎水机污染物，砂环境介质中含量水平的大小顺序则是水＞土壤或沉积物＞空气。上述两类有机染染物在责无旁贷是质听含量水平都具有如下的顺序：叶＞根

THE ESTABLISHMENT OF STABLE EQUILIBRIUM MODEL OF MONOCARBOXOLDEHYDE AND OTHER ORGANIC POLLUTANTS IN MULTIMEDIA ENVIRONMENT

he physico-chemical paramenters(Kow,eveporation pressure,water solubility,Koc and BCF)of monocarboxoldehyde and other 19 organic pollutants were estimated and fugacityapproach model of multimedia environment at stable equilibrium for pond and agriculturalfield ecosystems was made.The primary reaults show that the model prediction for concen-tration distribution of organic pollutants in multimedia environment at stable equilibrium condition is feasible.For hydrophobic organic chemicals,the concentration in soil or sediment>water>air.For hydropholic organic chemicals,the concentration in water>soil or sedi-ment>air.In plants,the concentration of both types of chemicals in leaf>roots>stem.Infish,the contents of all involied chemicals are not too different.