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Table 6 Mean, mean standard error and range of nutrient concentrations (mg L−1) measured in sampling sites at Lake Ziway in dry season (TP for total phosphorus in mg L−1; SRP for soluble reactive phosphorus in mg L−1; NO2-N for nitrite-nitrogen in mg L−1; NO3-N for nitrate-nitrogen in mg L−1; NH4-N for ammonia–nitrogen in mg L−1; TIN for total inorganic nitrogen in mg L−1; TN for total nitrogen in mg L−1; SiO2-Si for soluble silica in mg L−1)

From: Assessment of spatio-temporal variations of selected water quality parameters of Lake Ziway, Ethiopia using multivariate techniques

Site

TP

PO4-P

NO2-N

NO3-N

NH3-N

TIN

TN

SiO2-Si

B

x̄ ± Std. Err

0.12 ± 0.02

0.06 ± 0.01

0.48 ± 0.20

0.17 ± 0.04

0.21 ± 0.05

0.85 ± 0.25

5.7 ± .25

46.2 ± 6.2

Range

0.06–0.15

0.04–0.08

0.188–1.3

0.06–0.25

0.1–0.35

0.34–1.8

4.9–6.4

32–68

C

x̄ ± Std. Err

0.14 ± 0.02

0.05 ± 0.01

0.29 ± 0.05

0.26 ± 0.17

0.17 ± 0.03

0.72 ± 0.22

9.1 ± 0.65

46.8 ± 2.4

Range

0.1–0.185

0.03–0.07

0.18–0.41

0.01–0.91

0.09–0.26

0.29–1.5

7.34–11.20

39.5–54

Fa

x̄ ± Std. Err

0.14 ± 0.02

0.05 ± 0.01

0.96 ± 0.22

0.38 ± 0.13

0.24 ± 0.04

1.6 ± 0.36

6.1 ± .6

46.8 ± 4.9

Range

0.105–0.23

0.03–0.1

0.6–1.8

0.1–0.75

0.15–0.35

0.9–2.9

4.5–8.3

35–60

Fb

x̄ ± Std. Err

0.19 ± 0.05

0.08 ± 0.03

1.7 ± 0.44

0.58 ± 0.19

0.29 ± 0.05

2.6 ± 0.6

8.1 ± .56

91.39.8

Range

0.05–0.32

0.04–0.16

0.72–2.89

0.08–0.97

0.15–0.42

1.0–4.2

6.5–9.8

56.9–114

Ka

x̄ ± Std. Err

0.13 ± 0.02

0.05 ± 0.01

0.35 ± 0.08

0.12 ± 0.02

0.22 ± 0.05

0.68 ± 0.10

7.1 ± 1.1

50.5 ± 6.7

Minimum

0.09–0.19

0.04–0.07

0.155–0.64

0.08–0.18

0.10–0.4

0.40–0.95

5.0–11

40.1–77

Kb

x̄ ± Std. Err

0.17 ± 0.03

0.05 ± 0.01

0.34 ± 0.03

0.22 ± 0.05

0.34 ± 0.03

0.89 ± 0.08

9.2 ± 1.3

68 ± 7.8

Range

0.08–0.24

0.04–0.09

0.24–0.42

0.07–0.35

0.24–0.42

0.76–1.2

14-Jul

43–88.7

Ko

x̄ ± Std. Err

0.12 ± 0.02

0.05 ± 0.01

0.32 ± 0.09

0.10 ± 0.03

0.2 ± 0.04

0.62 ± 0.14

9.7 ± .42

39 ± 3.4

Range

0.07–0.19

0.04–0.07

0.05 ± 0.188

0.01–0.18

0.09–0.3

0.3–1.2

8.5–11

30–47

Ma

x̄ ± Std. Err

0.14 ± 0.02

0.05 ± 0.01

0.23 ± 0.08

0.10 ± 0.02

0.17 ± 0.03

0.55 ± 0.08

6.3 ± .49

49 ± 3.8

Range

0.09–0.2

0.04–0.06

0.1–0.53

0.04–0.14

0.114–0.3

0.35–0.8

4.8–7.6

38–62

Mb

x̄ ± Std. Err

0.97 ± 0.75

0.06 ± 0.01

0.41 ± 0.17

0.28 ± 0.19

0.41 ± 0.17

1.3 ± 0.53

9.4 ± 1.2

61.3 ± 3.9

Range

0.2–3.95

0.04–0.08

0.06–1.1

0.03–1.1

0.1–1.1

0.21–3.2

5.6–13

50.8–73

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BMC Chemistry

ISSN: 2661-801X

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