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