目的 分析珠江广州河段底泥重金属的污染状况,为进一步治理珠江水体污染提供参考依据.方法 抽取珠江广州河段前航道、后航道和西航道底泥24宗,检测和分析其中重金属(镉、总铬、铅、铜、锌、镍、砷、汞)的含量.结果 以锌>总铬>汞>铜>砷>铅.结论 珠江广州河段底泥重金属污染严重,对珠江水体的质量构成威胁.“,”Objective To analyze the present situations of heavy metal contamination in the sediment of the Pearl River, Guangzhou section. Methods Samples collected from the front route, the latter route and the west route of Pearl River, Guangzhou section, were analyzed for the concentrations of heavy metals (Cd, Cr, Pb, Cu, Zn, Ni,As and Hg). Results According to the Environmental Quality Standards for soil (GB15618-1995), 60% of the samples had Cd,Cr,Cu,Zn, Ni and Hg exceeded the standard. 100% samples with Cd and Ni exceeded the standard. The unqualified rate was in the following order: Cd, Ni > Zn > Cr > Hg > Cu > As > Pb. Conclusion The sediments in the Pearl River, Guangzhou Section, were heavily contaminated, and the degree of contamination pose an important health issue to the public health.