S. No.

Parameters/ Sampling Site

pH

Conductivity

(m·S/cm)

TDS

(mg/l)

DO

(mg/l)

Hardness

(mg/l)

1

Keamari

6.9 ± 0.23

0.12 ± 0.01

96.2 ± 2.03

7.2 ± 0.08

62 ± 0.90

2

SITE

6.3 ± 0.21

0.15 ± 0.03

82.3 ± 3.68

6.9 ± 0.09

69 ± 2.31

3

Baldia

6.5 ± 0.19

0.09 ± 0.01

72.0 ± 6.23

7.1 ± 0.01

60 ± 3.21

4

Orangi

6.8 ± 0.25

0.13 ± 0.03

89.0 ± 4.02

6.9 ± 1.02

73 ± 2.11

5

Lyari

6.9 ± 0.17

0.08 ± 0.05

125 ± 5.99

6.9 ± 0.08

70 ± 0.98

6

Saddar

6.2 ± 0.26

0.09 ± 0.02

115 ± 1.03

7.3 ± 0.05

62 ± 0.05

7

Jamshed

7.1 ± 0.11

0.16 ± 0.01

126 ± 2.58

6.9 ± 0.11

89 ± 0.12

8

Gulshan

6.9 ± 0.28

0.14 ± 0.03

105 ± 9.25

7.8 ± 0.09

69 ± 0.14

9

Shah Faisal

7.2 ± 0.20

0.05 ± 0.01

101 ± 6.25

7.5 ± 0.08

49 ± 0.10

10

Landhi

6.9 ± 0.11

0.16 ± 0.04

159 ± 3.02

7.3 ± 0.21

72 ± 0.18

11

Korangi

7.9 ± 0.24

0.21 ± 0.03

152 ± 2.05

6.9 ± 0.71

63 ± 1.32

12

North Nazimabad

6.7 ± 0.09

0.05 ± 0.01

32.0 ± 2.03

6.8 ± 0.22

32 ± 0.19

13

New Karachi

6.5 ± 0.18

0.02 ± 0.02

67.0 ± 8.52

7.3 ± 0.25

63 ± 0.17

14

Gulberg

7.6 ± 0.19

0.11 ± 0.01

96.0 ± 5.20

7.9 ± 0.21

49 ± 3.59

15

Liaquatabad

7.2 ± 0.09

0.07 ± 0.03

79.3 ± 5.02

8.2 ± 0.18

58 ± 2.30

16

Malir

6.5 ± 0.15

0.08 ± 0.04

75.3 ± 3.02

7.1 ± 0.95

49 ± 2.36

17

Binqasim

6.2 ± 0.02

0.05 ± 0.01

59.0 ± 2.01

6.3 ± 0.08

23 ± 5.23

18

Gadap

7.0 ± 0.01

0.04 ± 0.02

99.0 ± 6.30

7.8 ± 0.02

71 ± 1.29

WHO Standard

6.5 - 8.5

No limit listed

500

No limit listed

0 - 75