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本文对乐安河流域１６０名儿童发中Ｃｕ、Ｚｎ、Ｐｂ、Ｃｄ、Ｎｉ、Ｍｎ、Ｆｅ七种微量元素的含量进行了测定和分析。经比较发现，新建与中洲之间，Ｃｕ、Ｍｎ、Ｆｅ含量差异有极显著性（ｐ＜０．０１），Ｚｎ、Ｐｂ含量差异有显著性（ｐ＜０．０５）；新建与戴村之间Ｃｕ、Ｚｎ含量差异有显著性；新建与蔡家湾之间，Ｍｎ、Ｆｅ含量差异有显著性；以上差异都是实验点（中洲、戴村、蔡家湾）高于对照点（新建）。Ｃｄ、Ｎｉ含量各点之间浓度值相近。对受试儿童身高、体重、胸围的调查结果表明，对照点均高于实验点。结果显示，重金属污染对乐安河流域儿童的健康可能造成不同程度的影响
In this paper, the content of seven trace elements Cu, Zn, Pb, Cd, Ni, Mn and Fe in 160 children’s hair in Le’an River Basin were measured and analyzed. The results showed that the contents of Cu, Mn and Fe were highly significant (p <0.01) and Zn and Pb contents were significantly different (p <0.05) There was a significant difference between the contents of Cu and Zn. The differences of Mn and Fe contents between Xinjian and Caijiawan were significant. The above differences were all above experimental points (Zhongzhou, Daicun and Caijiawan) . The contents of Cd and Ni were close to each other. The survey of height, weight and chest circumference of the children under test showed that the control points were all higher than the experimental points. The results show that heavy metal pollution may have different degrees of impact on the health of children in the Le Ann River Basin