Variable

Dialysis Units (n = 30)

Normal reference

Unit 1

Unit 2

Unit 3

Unit 4

Unit 5

Ag (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.005 mg/l

Al (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.01 mg/l

Ba (mg/l)

0.041

0.0005

0.0003

0.003

0.036

≤0.1 mg/l

Cd (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.001 mg/l

Cr (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.014 mg/l

Cu (mg/l)

0.003

0.041

.005

.002

0.0041

≤0.1 mg/l

Fe (mg/l)

0.003

0.003

Nil

.002

0.03

≤0.1 mg/l

Mn (mg/l)

0.001

0.02

Nil

Nil

0.004

≤0.1 mg/l

Pb (mg/l)

0.0003

Nil

0.0002

Nil

Nil

≤0.005 mg/l

Se (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.09 mg/l

Zn (mg/l)

0.04

0.003

0.004

0.03

0.006

≤0.1 mg/l

As (mg/l)

Nil

Nil

Nil

Nil

Nil

≤0.005 mg/l