摘要
本文根据1985～1989年佛山市主要纳污河流汾江河涌底质重金属的调查结果,分析了底质重金属含量的时空分布、重金属在底质中的累积及其相互关系。表明河涌底质重金属含量沿河分布的差异与工业排污位置有关;底质对重金属的单位累积量基本稳定,对不同重金属累积能力有明显差异;底质中亲铜元素(除Cd)相互关系较密切。提出三角洲河网区支涌底质评价标准和评价方法,并利用此方法评价了汾江河涌底质重金属污染状况,表明目前底质处于轻污染状态。
According to the general survey of heavy metals in the bottom mud ofFenjiang river braided streams from 1985-1989, the time and space distribution ofthe heavy metal content in the bottom mud, the heavy metal accumulation in thebottom mud and the relationship between them were analyzed. It shows that alongthe river the distribution difference of heavy metal content in the bottom mud ofriver braided streams is related to the position of industrial wastewater discharge;the heavy metal accumulated per unit in the bottom mud is basicaly steady, butthe accumulation ability of the different heavy metals in the bottom mud is obviou-sly variable; in the bottom mud, the relationship between copper affined elements(except cadmium) is closely correlated. Assessment standard and method of thebottom mud in the smaller braided streams of the river delta network are reviewed,and the results showed that the bottom mud is lightly polluted.
出处
《环境污染与防治》
CAS
CSSCI
CSCD
北大核心
1990年第4期11-16,共6页
Environmental Pollution & Control
