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Bulletin of the National Research Centre

Table 5 Average values of the selected parameters at each location in the coastal and estuaries of river Rambungan, river Sibu, river Salak, and river Santubong in Sarawak, Malaysia

From: Application of fuzzy evaluation technique and grey clustering method for water quality assessment of the coastal and estuaries of selected rivers in Sarawak

Location

Code

Parameter

pH

EC

Tem

Turbidity

Salinity

DO

RedoxP

NO3

PO4

NH3

TSS

FC

FS

Cr

Unit

–

μS/cm

°C

FNU

ppt

mg/L

mV

μg/L

μg/L

μg/L

mg/L

Cfu/100 mL

–

μg/L

Rambungan

CZ1

7.1

119.3

28.8

4.81

0.32

6.59

166

5.7

3.3

26.2

8.1

6.0

a Pleasant

4.1

Coastal area

CZ2

7.7

5037

29.2

0.85

32.77

9.07

314

88.1

41

2.5

14.7

15.0

Pleasant

8.9

Coastal area

CZ3

7.4

5113

28.3

0.69

33.38

9.11

335.97

80.3

32.9

4.32

12.2

13.5

Pleasant

11

Sibu

CZ4

6.3

122

29.4

4.06

0.28

3.93

121

3.5

2.5

15.4

6.9

8.4

b Unpleasant

3.4

Coastal area

CZ5

7.3

3385

27.8

0.61

31.63

8.37

456

61.3

15.8

4.2

19.1

19.0

Pleasant

6.1

Coastal area

CZ6

7.7

5179

29.1

0.66

33.35

9.01

487.33

57.9

44.1

3.4

17.1

12.7

Pleasant

9.4

Salak

CZ7

6.5

302.3

29.2

3.70

0.27

5.21

114.67

7.4

1.9

9.7

6.6

4.2

Pleasant

2.2

Coastal area

CZ8

7.6

312.7

28.3

0.50

33.99

8.44

312

33.2

22.3

5.2

10.2

11.3

Pleasant

5.8

Coastal area

CZ9

7.5

4996

28.7

0.70

34.36

9.81

503.27

40.1

31.4

2.5

17.7

9.9

Pleasant

7.1

Santubong

CZ10

7.2

441.7

29.7

4.28

0.35

5.14

194.67

2.4

1.4

11.2

9.4

4.4

Pleasant

0.9

  1. EC stands for Electrical Conductivity, Tem represents Temperature, DO stands for Dissolved Oxygen, TSS stands for Total Suspended Solids, FC represents Faecal Coliform, and FS stands for Float Solids
  2. a Pleasant: Smell’s good
  3. b Unpleasant: Smell’s bad
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