Lead Pollution and Its Assessment of Roadside Soils in Suzhou City

摘要

Concentrations of lead in roadside soils from different function areas of Suzhou City were determined and analysed by X-Ray fluorescence spectrometer, and the method of geoaccumulation index. The results indicate that the concentrations of lead in roadside soils range from 23 to 90 mg/kg, with an average value of 37.11 mg/kg, exceeded the environment background value; the lead concentration from high to low is commercial areas, areas around station, industrial areas, urban green space and residential areas; most of roadside soils have not been polluted or only slightly polluted, except sampling site 19, 23 and 49 (moderate pollution).