项目 | 2022年5月 | 2022年9月 | |||
范围 | 均值 | 范围 | 均值 | ||
Cu | S | 0.2461~0.9491 | 0.9761 | 0.0661~0.4105 | 0.2528 |
B | 0.0127~0.7579 | 0.3847 | 0.0529~0.1925 | 0.1435 | |
Pb | S | ND | ND | 0.0017~0.2810 | 0.0816 |
B | ND | ND | 0.0030~0.2863 | 0.1501 | |
Cd | S | ND | ND | 0.0099~0.0569 | 0.0205 |
B | ND~0.0217 | 0.0072 | 0.0093~0.0518 | 0.0201 | |
Cr | S | ND~0.0578 | 0.0252 | 0.0051~0.0279 | 0.0111 |
B | 0.0020~0.0078 | 0.0064 | 0.0014~0.0136 | 0.0060 | |
Hg | S | 0.0158~0.0453 | 0.0325 | 0.3107~0.4524 | 0.3615 |
B | 0.0221~0.0410 | 0.0324 | 0.3107~0.4033 | 0.3461 | |
As | S | 0.0184~0.2601 | 0.0625 | 0.0163~0.0204 | 0.0182 |
B | 0.0178~0.0404 | 0.0243 | 0.0142~0.0546 | 0.0228 | |
算术均值多因子指数值 | S | 0.0005~0.6761 | 0.1594 | 0.0111~0.3615 | 0.1243 |
B | 0.0064~0.3847 | 0.0910 | 0.0060~0.3461 | 0.1148 |