Parameters

L1

L2

variation (mg/L)

Fe (µg/L)

4570

70 - 10,540

8330

70 - 34,100

3 - 5500

Cu (µg/L)

400

210 - 1120

400

80 - 800

0.005 - 10

Zn (µg/L)

510

197 - 840

520

204 - 1020

0.03 - 1000

Cd (µg/L)

90

50 - 250

130

30 - 360

0.0001 - 0.4

Pb (µg/L)

540

Nd - 820

560

Nd - 950

1 - 5

Ni (µg/L)

310

210 - 430

320

250 - 410

0.015 - 13

Co (µg/L)

90

Nd - 180

70

40 - 130

0.015 - 14