河南师范大学校园内表层土壤Pb含量及污染评价

[目的]研究河南师范大学校园内表层土壤的铅含量及其污染现状。[方法]以河南师范大学新老校园为研究对象,按功能区分别取0~5 cm表层土样若干,组成混合样品,测定其中Pb的含量并用地积累指数法进行评价。[结果]河南师范大学校园表层土壤Pb的平均值为55.18 mg/kg,是河南省土壤背景值的2.47倍;地积累指数法评价结果表明,校园内有代表性土壤中的Pb污染程度均为轻度污染至中度污染。[结论]河南师范大学校园内土壤中Pb含量与建校时征用土地中的Pb含量有关。

Pb Concentration in Surface Soil of Henan Normal University Campus and Its Pollution Assessment

[Objective] The research aimed to study Pb concentrations on Henan Normal University campus and assess the conditions of Pb polution.[Method] Taken Henan Normal University campus as research object,surface soil samples in different functional areas of 0-5 cm depth were mixed and used for Pb concentration measurement.And the results were eluvated with geoaccumulation index methods.[Result] Lead concentrations in surfrace soils on Henan Normal University campus averaged 55.18 mg/kg,which was 2.47 times the background value of soil in Henan Province.The result showed the campus soils was light-or medium-Pb pollution with geoaccumulation index.[Conclusion] Pb concentrations in surfrace soils on Henan Normal University campus had relationship with the concentrations of requisition lands for university construction.