【摘要】 根据流经成都市内的三条河流(府河、南河、沙河)表层沉积物重金属资料,应用地质累积指数法对重金属污染进行了评价研究。结果表明,河流主要的重金属污染物是Cr,地质累积指数分级多在0~1之间,属于无污染-中度污染范畴。更多还原

【Abstract】 Based on the data of heavy metals in the surface sediments from three rivers in Chengdu,including the Shahe river,Fuhe river and Nanhe river,the index of geoaccumulation(I_geo)is used to evaluate heavy metals pollution.The results show that the index of geoaccumulation(I_geo) classify are most between 0～1,the contamination levels are from non to moderate.The main factor caused pollution is chrominum.更多还原