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Table 4 Physicochemical parameters of the breeding sites in the rainy season

From: Diversity of larval habitats of Anopheles mosquitoes in urban areas of Benin and influence of their physicochemical and bacteriological characteristics on larval density

Breeding sites

n

Physicochemical parameters

Depth (m)

Area (m2)

Temperature (°C)

pH

Dissolved oxygen (mg/L)

Conductivity(μS/cm)

Salinity (g/L)

TDS (p.p.m.)

Turbidity (NTU)

Gutters

12

30.86 ± 3.14

7.13 ± 0.10

2.19 ± 1.12

536.11 ± 329.18

0.13 ± 1.16

388.16 ± 235.13

240.16 ± 338.18

0.16 ± 0.07

1.13 ± 0.10

Tyres

14

27.15 ± 2.18

7.15 ± 0.12

2.10 ± 1.15

401.12 ± 296.12

0.11 ± 0.18

247.13 ± 190.18

33.16 ± 34.16

0.07 ± 0.03

0.12 ± 0.109

Vegetable farms

4

31.12 ± 5.12

6.15 ± 2.10

2.19 ± 0.15

525.1 ± 420.11

0.15 ± 0.17

364.15 ± 299.11

20.17 ± 26.19

0.06 ± 0.03

0.15 ± 1.14

Puddles

78

31.15 ± 3.10

8.19 ± 0.18

2.10 ± 1.13

302.14 ± 218.14

0.13 ± 0.19

184.12 ± 144.16

179.12 ± 220.14

0.12 ± 0.13

3.18 ± 1.14

Water containers for animals

1

25.1

9.13

2.15

540

0.1

447.1

109

0.2

0.19

Hoof imprints

2

32.15 ± 8.19

7.12 ± 0.17

2.19 ± 2.17

475 ± 200.11

0.15 ± 0.17

295.1 ± 87.11

562.1 ± 118.18

0.1

0.14 ± 0.19

Tin cans

1

28.1

9.14

0.1

922

0.1

507

38.12

0.05

0.13

Ponds

12

30.15 ± 3.14

7.16 ± 0.15

3.19 ± 1.12

350.16 ± 205.12

0.16 ± 0.11

224.14 ± 142.17

113.17 ± 163.18

0.22 ± 0.20

2.17 ± 0.10

Tyre tracks

11

30.1 ± 3.12

7.17 ± 0.15

2.15 ± 1.17

602.1 ± 520.17

0.17 ± 0.19

416.13 ± 392.17

255.18 ± 246.19

0.08 ± 0.03

0.16 ± 0.16

Swamps

2

30.1 ± 5.13

7.17 ± 0.17

7.19 ± 0.19

373.1 ± 111.19

0.15 ± 0.17

232.15 ± 79.17

39.13 ± 22.19

0.15 ± 0

1.12 ± 0.19

Pits

3

30.1 ± 0.18

7.16 ± 0.16

3.15 ± 1.18

603.16 ± 329.19

0.13 ± 0.15

377.15 ± 217.18

9.17 ± 1.19

0.55 ± 0.42

2.18 ± 1.14

Construction sites

1

27.1

8.15

3.12

220.1

0.1

139.1

17.18

0.03

4.11

  1. NTU Nephelometric turbidity units