元素 | 最大值(mg/kg) | 最小值(mg/kg) | 均值(mg/kg) | 标准差 | 变异系数(%) | 背景值[15] (mg/kg) |
As | 30.30 | 2.30 | 7.45 | 1.63 | 22% | 7.01 |
Cd | 2.93 | 0.04 | 0.19 | 0.11 | 59% | 0.15 |
Cr | 119.80 | 10.70 | 81.39 | 14.37 | 18% | 77.50 |
Cu | 259.80 | 6.00 | 32.87 | 11.85 | 36% | 30.90 |
Hg | 1.26 | 0.03 | 0.17 | 0.10 | 55% | 0.16 |
Ni | 82.35 | 5.50 | 34.79 | 7.55 | 22% | 32.40 |
Pb | 71.00 | 17.48 | 31.22 | 4.08 | 13% | 30.30 |
Zn | 332.50 | 35.00 | 94.02 | 19.59 | 21% | 92.70 |