金沙江流域底泥重金属污染特征及来源解析——以蜻蛉河为例

程琰勋, 徐磊, 吴亮, 赵萌生, 王福华, 钱坤, 郑洪福, 李文辉, 张宏辉

Characteristics and source analysis of heavy metal contamination in the sediments of the Jinsha River Basin: A case study of the Qingling River

CHENG Yan-Xun, XU Lei, WU Liang, ZHAO Meng-Sheng, WANG Fu-Hua, QIAN Kun, ZHENG Hong-Fu, LI Wen-Hui, ZHANG Hong-Hui

表8 底泥重金属内梅罗综合污染指数等级分布情况

Table 8 Class distribution of Nemero comprehensive pollution index of heavy metals in the sediments

内梅罗综合 污染指数 P综 比例/% 变化范围 平均值 P综≤0.7 0.7<P综≤1 1<P综≤2 2<P综≤3 P综>3 0.74~18.54 2.75 0 22.73 45.45 18.18 13.64