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Table 2 Physical and chemical characteristics of water sampled

From: Evaluation of surface water quality indices and ecological risk assessment for heavy metals in scrap yard neighbourhood

Sample code

pH

Temp (°C)

EC (μS/cm)

TDS (mg/L)

Alkalinity (mg/L)

Chloride (mg/L)

Hardness (mg/L)

PO4 3− (mg/L)

SO4 2− (mg/L)

NO3 − (mg/L)

Na+ (mg/L)

K+ (mg/L)

ODS-1

9.61 ± 0.03

29

1060

530

10

93

266

0.051

83.7

14.331

19

5

ODS-2

9.66 ± 0.06

30

1230

615

13

139

278

0.071

77.7

14.966

25

9

ODS-3

9.92 ± 0.03

29

900

450

9

64

268

0.010

63.9

14.150

17

7

ODS-4

9.84 ± 0.05

29

700

350

11

59

248

0.061

54.19

12.608

17

6

ODS-5

9.77 ± 0.02

30

782

391

7

66

196

0.051

94.7

12.517

18

5

ODS-6

9.54 ± 0.04

29

800

400

8

69

190

0.051

76.3

13.787

17

4

ODS-7

9.95 ± 0.01

29

800

400

10

78

294

0.061

58.2

7.438

17

8

ODS-8

10.20 ± 0.02

29

1378

689

13

157

314

0.162

51.5

21.406

24

6

ODS-9

9.87 ± 0.02

29

552

276

9

65

144

0.122

21.1

19.773

17

3

ODS-10

10.07 ± 0.01

31

456

228

10

56

140

0.122

21.0

22.766

14

2

LFS-1

10.31 ± 0.03

28

474

237

8

44

154

0.456

28.9

29.297

9

3

LFS-2

10.36 ± 0.03

28

500

250

12

40

114

0.901

27.7

32.653

11

4

LFS-3

9.64 ± 0.02

30

980

490

13

410

500

0.172

30.6

58.594

90

100

LFS-4

9.81 ± 0.06

29

500

250

12

386

600

0.122

57.9

58.957

90

60

LFS-5

9.75 ± 0.02

29

460

230

11

685

450

0.122

54.8

55.782

90

60