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Table 7 Mean, mean standard error and range of nutrient concentrations (mg L−1) measured in sampling sites at Lake Ziway in wet 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(mg/L)

PO4-P

NO2-N

NO3-N

NH3-N

TIN

TN

SiO2-Si

B

x̄ ± Std. Err

0.35 ± 0.1

0.046 ± 0.01

0.47 ± 0.06

0.15 ± 0.03

0.11 ± 0.02

0.73 ± 0.08

5.13 ± 1.20

35.5 ± 11.60

Range

0.21–0.42

0.04–0.06

0.35–0.53

0.08–0.20

0.07–0.13

0.57–0.86

2.8–7.00

12.37–47.30

C

x̄ ± Std. Err

0.38 ± 0.023

0.05 ± 0.01

0.33 ± 0.12

0.17 ± 0.12

0.09 ± 0.01

0.59 ± 0.24

6.02 ± 0.26

43.6 ± .72

Range

0.34–0.41

0.03–0.08

0.21–0.57

0.05–0.41

0.08–0.10

0.352–1.1

5.60–6.5

42.9–45.1

Fa

x̄ ± Std. Err

0.29 ± 0.12

0.05 ± 0.01

0.74 ± 0.22

0.26 ± 0.12

0.09 ± 0.03

1.1 ± 0.33

7.0 ± 0.81

36 ± 7.5

Range

0.18–0.52

0.04–0.07

0.43–1.2

0.03–0.39

0.03–0.14

0.48–1.62

5.6–8.4

22.2–47.7

Fb

x̄ ± Std. Err

0.42 ± 0.175

0.11 ± 0.04

0.89 ± 0.44

0.44 ± 0.19

0.09 ± 0.04

1.42 ± 0.62

6.66 ± 0.53

39.2 ± 26

Range

0.17–0.75

0.04–0.16

0.34–1.8

0.17–0.80

0.02–0.15

0.75–2.7

5.6–7.4

5.8–90.5

Ka

x̄ ± Std. Err

0.23 ± 0.02

0.05 ± 0.01

0.84 ± 0.16

0.47 ± 0.04

0.09 ± 0.03

1.39 ± .18

7.6 ± 0.43

37.9 ± 4.68

Range

0.20–0.27

0.04–0.07

0.5—1.1

0.4–0.54

0.03–0.12

1.1 ± 1.7

7–8.4

30.3–46.45

Kb

x̄ ± Std. Err

0.73 ± 0.27

0.06 ± 0.01

1.2 ± 0.20

0.86 ± 0.22

0.15 ± 0.10

2.2 ± .50

8.1 ± 0.86

38.15 ± 17.10

Range

0.24–1.2

0.05–0.08

0.89–1.6

0.52–1.3

0.05–0.3

1.5–3.1

7–9.8

11.24–70

Ko

x̄ ± Std. Err

0.27 ± 0.08

0.05 ± 0.01

0.42 ± 0.12

0.20 ± 0.04

0.08 ± 0.02

0.7 ± 0.12

12 ± 1.9

34.3 ± 11

Range

0.12–0.376

0.04–0.07

0.2–0.6

0.1–0.3

0.05–0.1

0.5–0.9

8.4–14

12.6–48.2

Ma

x̄ ± Std. Err

0.24 ± 0.04

0.06 ± 0.02

0.76 ± 0.06

0.23 ± 0.11

0.08 ± 0.02

1.06 ± 0.14

6.1 ± .55

42.62 ± 1.9

Range

0.19–0.33

0.04–0.082

0.66–0.86

0.01–0.369

0.03–0.11

0.8–1.3

4.97–7

38.96–45.42

Mb

x̄ ± Std. Err

1.0 ± 0.30

0.09 ± 0.02

1.02 ± .2

0.50 ± 0.24

0.16 ± 0.06

1.66 ± .48

13.5 ± 4.5

39.1 ± 14.72

Range

0.47–1.5

0.06–0.12

0.7–1.42

0.02–0.75

0.05–0.23

0.76–2.4

5.6–21

11.2–61.2

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BMC Chemistry

ISSN: 2661-801X

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