【摘要】 本文据1986年闽江口环境质量调查资料,初步讨论了闽江口悬浮物和表层沉积物中Cd,Pb,Cu和Zn的含量分布及主要来源;探讨了表层沉积物中Cd,Pb,Cu,Zn,中值粒径和有机质含量之间的相互关系。更多还原

【Abstract】 Concentration of Cd, Pb, Cu and Zn in suspension and surface sediment have been analyzed together with some parameters on June-86-cruise in the Mingjiang River estuary. The mean mass fractions of Cd, Pb, Cu and Zn are 0.30×10^-6, 81.0×10^-6, 38.7×10^-6 and 233×10^-6 in suspension, and 0.3×10^-6, 58.2×10^-6, 34.3×10^-6 and 149×10⁶ in surface sediment samples. Concentration and distribution of Pb, Cu and Zn in suspension and surface sediments appear to be from the weathering of rocks and minerals and coast erosion within the Mingjiang drainage basin, and those of Cd are affected additionally by the estuarine behavior of cadmium and even by exfernal materials.更多还原