MRB3

MMR4

LOM2

LOM3

WHO (µg/L)

Pb

100

100

100

100

10

Cd

50

50

50

50

3

As

10

10

10

10

10

Cu

800

100

100

100

2000

Zn

400

100

100

100

3000

Cr

20

100

20

100

50

Mn

100

700

100

700

400

Fe

570

850

2000

850

300

CN

10

10

10

10

70