CAJ | 학술논문

采集了贵溪冶炼厂附近3类典型重金属污染土壤：未受任何修复土壤（A）、正在进行植物修复的土壤（B）和已受植物修复的土壤（C），测定和分析了土壤的理化性质和重金属总量，采用单因子污染指数法和内梅罗综合指数法对该土壤进行了评价，Hakanson 潜在生态风险评价法评估了该土壤中重金属的潜在生态危害。结果表明：修复前，土壤综合污染指数 P 综＝15．24，土壤属重度污染，具有极强的综合危害性；Zn、Cd、Cu、As、Pb、Mo 6种重金属都有不同程度的积累，其中 Cd、Cu、As 3种重金属的积累程度最为严重；Cr、Ni、Mn 含量低于土壤背景值，属清洁元素。修复后，各重金属含量均有所降低，土壤综合污染指数 P 综＜3，土壤的综合潜在生态危害性大大降低，土壤为中度污染，但 Cd 仍具有很强的潜在生态风险，As 存在中度潜在生态风险，Cu 存在轻度潜在生态风险。
채집료귀계야련엄부근3류전형중금속오염토양：미수임하수복토양（A）、정재진행식물수복적토양（B）화이수식물수복적토양（C），측정화분석료토양적이화성질화중금속총량，채용단인자오염지수법화내매라종합지수법대해토양진행료평개，Hakanson 잠재생태풍험평개법평고료해토양중중금속적잠재생태위해。결과표명：수복전，토양종합오염지수 P 종＝15．24，토양속중도오염，구유겁강적종합위해성；Zn、Cd、Cu、As、Pb、Mo 6충중금속도유불동정도적적루，기중 Cd、Cu、As 3충중금속적적루정도최위엄중；Cr、Ni、Mn 함량저우토양배경치，속청길원소。수복후，각중금속함량균유소강저，토양종합오염지수 P 종＜3，토양적종합잠재생태위해성대대강저，토양위중도오염，단 Cd 잉구유흔강적잠재생태풍험，As 존재중도잠재생태풍험，Cu 존재경도잠재생태풍험。
3.School of the Tourism and Urban Management,JiangXi University of Finance and Economics,Nanchang 330032,China) Three typical soil samples polluted by heavy metal were collected near the smelter and marked with no repair soil (A),under repairing soil (B)and the phytoremediated soil (C),the physical and chemi-cal properties as well as the total heavy metals of the soils were determinated and analysed,and then as-sessed by the single pollution index and Nemerow pollution index,Hakanson index method was applied to ecaluate the heavy metals potential ecological risk.The results showed that:before soil phytoremediation comprehensive pollution index P =15.24,the soil belongs to high levels of pollution,with strong compre-hensive hazard.6 kinds of heavy metals Zn,Cd,Cu,As,Pb,Mo are accumulated in the soil with different degree,and the accumulate degrees of Cd、Cu、As is the most serious.Contention of Cr,Ni,Mn are lower than background values of the soil,which belongs to cleanness elements.After phytoremediation,all the heavy metal content are reduced,the comprehensive pollution index of soil P <3,the comprehensive ecolog-ical potential harmfulness of soil is reduced significantly,which was in moderate pollution,Cd is still has a strong potential ecological risks,As with moderate potential ecological risk,Cu with minimal potential eco-logical risk.