Samples

As

Ba

Cd

Cu

Cr

Mo

Ni

Pb

Sr

V

Zn

(mg/kg)

Waste from refusal to screens

15.1

140

33.2

56.3

300

9.85

111

<8

497

174

354

Phosphate washing sludge

39

156

27.3

93.5

699

15.6

215

<8

535

330

729

Magnetic waste

565

1670

48.5

385

330

247

1025

55.6

264

599

2375

Discharge of dust

<12

5.3

35.4

126

155

7.07

19.6

<8

513

63

196