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Table 7 Major physio-chemical variables in two reservoirs during study period

From: Source water odor in one reservoir in hot and humid areas of southern China: occurrence, diagnosis and possible mitigation measures

Season

Area

Water Temp. (oC)

Chroma

Turbidity (NTU)

PH

DO (mg/L)

UV254

DOC (mg/L)

CODMn (mg/L)

TN (mg/L)

TP (mg/L)

Chl-a (ÎĽg/L)

Spring

SZ

23.00 ± 2.63

15.86 ± 4.75

3.97 ± 1.58

7.53 ± 0.34

9.72 ± 0.81

0.03 ± 0.01

2.52 ± 0.95

2.38 ± 0.39

4.10 ± 1.60

0.09 ± 0.03

14.72 ± 6.64

SY

24.64 ± 2.96

21.93 ± 5.93

4.26 ± 0.79

8.50 ± 0.82

10.12 ± 1.9

0.03 ± 0.01

3.39 ± 2.14

3.88 ± 1.02

3.92 ± 1.47

0.08 ± 0.04

40.65 ± 15.67

Summer

SZ

28.73 ± 0.58

16.05 ± 2.12

5.71 ± 1.99

7.77 ± 0.21

7.40 ± 0.92

0.04 ± 0.01

4.27 ± 2.05

3.59 ± 1.87

3.47 ± 1.85

0.12 ± 0.03

7.01 ± 1.89

SY

31.00 ± 1.24

30.93 ± 3.48

6.8 ± 0.95

9.21 ± 0.31

9.78 ± 1.71

0.05 ± 0.01

4.91 ± 0.98

6.26 ± 1.69

3.02 ± 1.47

0.12 ± 0.02

79.62 ± 13.64

Autumn

SZ

25.64 ± 3.06

13.98 ± 2.96

4.00 ± 1.49

7.17 ± 0.44

8.11 ± 0.87

0.05 ± 0.03

2.24 ± 0.79

2.61 ± 0.83

2.62 ± 1.63

0.09 ± 0.03

7.68 ± 3.36

SY

26.54 ± 4.17

23.63 ± 4.11

4.86 ± 1.69

7.78 ± 0.78

8.10 ± 1.15

0.04 ± 0.02

2.56 ± 0.72

4.51 ± 1.07

2.69 ± 1.55

0.08 ± 0.03

37.41 ± 16.02

Winter

SZ

18.59 ± 2.23

11.30 ± 3.43

3.00 ± 0.46

7.79 ± 0.69

10.38 ± 0.4

0.05 ± 0.05

1.93 ± 0.48

3.14 ± 1.36

4.74 ± 1.93

0.08 ± 0.03

16.93 ± 5.56

SY

18.83 ± 2.12

20.23 ± 2.45

4.9 ± 1.61

7.84 ± 0.53

9.43 ± 1.21

0.06 ± 0.08

2.43 ± 0.17

4.55 ± 1.55

4.06 ± 1.96

0.1 ± 0.03

37.59 ± 9.04

  1. All values are given as mean values with standard error