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Table 3 Physicochemical parameters of mosquito breeding sites

From: Impact of vegetable crop agriculture on anopheline agressivity and malaria transmission in urban and less urbanized settings of the South region of Cameroon

Parameters Urban setting (Yaoundé) Less urbanized setting (Akonolinga)
Hydro-agricultural site River site Hydro-agricultural site River site
Mean ± SE Range Mean ± SE Range Mean ± SE Range Mean ± SE Range
Dissolved oxygen 7.8 ± 0.7 7.3–8.3 9.7 ± 1.1 8.9–11.2 9.2 ± 0.5 6.1–7.8 8.5 ± 0.7 6.3–9.2
pH 5.01 ± 0.5 5.7–6.4 6.3 ± 0.7 4.9–6.3 6.7 ± 1.1 5.2–7.3 6.9 ± 0.4 6.2–8.1
Salinity (%) 0.09 ± 0.01 0.08–0.1 0.07 ± 0.01 0.05–0.1 0.07 ± 0.01 0.06–0.09 0.1 ± 0.01 0.08–0.2
Conductivity (μS/cm) 294.7 ± 8.9 275.5–304.5 305.4 ± 5.7 277.3–325.1 247.3 ± 7.2 228.4–269.5 294.2 ± 5.4 250.3–335.5
Water temperature (°C) 27.5 ± 2.3 22.2–30.4 22.2 ± 3.1 21.3–28.2 28.4 ± 2.9 24.6–32.1 22.7 ± 1.8 24.3–29.5
Total dissolved solids (mg/L) 50.6 ± 2.6 60.4–70.2 110.3 ± 4.2 97.3–124.2 71.4 ± 1.2 64.5–78.3 97.9 ± 2.4 86.8–107.4
Turbidity (NTU) 31.2 ± 2.7 27–35 27 ± 1.7 24–31 35 ± 2.3 30–40 28 ± 2.1 22–34
Sulfate (mg/L) 3.1 ± 0.3 2.7–3.5 0 ± 0 0–0 2 ± 0.1 1.7–2.3 0.2 ± 0.01 0.008–0.4
Phosphate (mg/L) 0.12 ± 0.03 0.08–0.16 0.17 ± 0.02 0.09–0.16 0.2 ± 0.01 0.08–0.7 0.05 ± 0.001 0.02–0.08
Nitrate (mg/L) 2.3 ± 0.2 2.0–2.6 2.4 ± 0.1 1.8–2.8 1.9 ± 0.1 1.5–2.3 2.1 ± 0.3 1.9–2.3
Magnesium (mg/L) 30 ± 2.8 25–33 27 ± 1.8 23–31 33 ± 1.4 27–36 21 ± 0.9 18–25
Calcium (mg/L) 94 ± 8.9 90–98 115 ± 7.9 95–130 87 ± 1.3 79–98 112 ± 2.6 97–119
Aquatic plants (+) - (+++) - (+) - (+++) -
Fish (−) - (+++) - (−) - (+++) -
Aquatic invertebrates (−) - (+++) - (−) - (+++) -
  1. (+++) = very abundant; (+) = scarce; (−) = absent - = No data available