土壤中PAHs的污染现状及修复对策

The Pollution Status and Remediation Methods of PAHs in Soil

概述了我国土壤受多环芳烃(PAHs)污染的水平及多环芳烃(PAHs)的分布特点:①我国土壤已普遍受到多环芳烃(PAHs)的污染,但大多是中低污染水平;②北京、上海、大连、天津等地土壤受多环芳烃(PAHs)污染较为严重,属严重污染水平,存在较大的生态风险;③在同一个研究区,农村、郊区、城区土壤中多环芳烃(PAHs)的污染逐渐加重,而且不同土壤利用下多环芳烃(PAHs)的污染也存在差异。总结了受多环芳烃(PAHs)污染土壤的修复对策:植物修复;微生物修复;植物-微生物联合修复。植物-微生物联合修复的效率较高。

This paper briefly summarized the current PAHs pollution levels and PAHs distribution characteristics in Chinaand introduced three remediation methods for polluted soils as well as the future scientific research needs.The results showed that most of the soilin China have been polluted by polycyclic aromatic hydrocarbons(PAHs),but most of them were of medium and low pollution levels.PAHs pollution in Beijing,Shanghai,Dalian and Tianjin was much more seriously,which would cause a great ecological risk.In the same study area,PAHs pollution in rural,suburban and urban soils gradually increased,and the pollution of PAHs in different kinds of soil was also different.Phytoremediation,microbial remediation and phyto-microbial remediation of polycyclic aromatic hydrocarbons(PAHs)contaminated soils were presented,among which,plant-microbial remediation indicated more efficient effect.