汉江上游水体沉积物污染状况分析与评价

杨婵, 吴娟娟, 车旭曦, 岳思羽, 刘智峰, 宋凤敏

Pollution analysis and assessment of sediments in the upper reaches of the Hanjiang River

YANG Chan, WU Juan-Juan, CHE Xu-Xi, YUE Si-Yu, LIU Zhi-Feng, SONG Feng-Min

表8 沉积物重金属主成分分析

Table 8 Principal component analysis of heavy metals in sediments

成分 初始特征值 提取载荷平方和 总计 方差/% 累积/% 总计 方差/% 累积/% 1 6.484 64.841 64.841 6.484 64.841 64.841 2 1.635 16.347 81.188 1.635 16.347 81.188 3 0.939 9.390 90.578 4 0.357 3.569 94.147 5 0.334 3.339 97.486 6 0.105 1.051 98.536 7 0.077 0.773 99.310 8 0.051 0.512 99.822 9 0.013 0.126 99.948 10 0.005 0.052 100.000