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Table 1

Chemical characterization of the water from the sampling points of floating species and the emergent T. domingensis (ND = not detected, DL = detection limit)

ParameterFloating macrophytesT. domingensis
pH 7.1–7.4 7.0–7.3 
Conductivity (μmho cm−1208–223 170–200 
Alkalinity (CaCO3) (mg L−195.2–101.0 100.1–105.7 
Cl (mg L−110.6–11.9 4.2–10.1 
SO42– (mg L−18.2–10.1 5.0–8.7 
Na+ (mg L−127.1–32.4 28.1–33.8 
K+ (mg L−111.1–12.9 12.4–14.9 
Fe (mg L−10.202–0.234 0.210–0.284 
SRP (mg L−10.015–0.023 0.010–0.079 
TP (mg L−10.039–0.052 0.070–0.098 
NO2 (mg L−1ND (DL = 0.005) ND (DL = 0.005) 
NO3 (mg L−10.431–0.626 0.524–0.710 
NH4+ (mg L−10.631–0.936 0.315–1.18 
DO (mg L−16.9–7.8 6.7–8.0 
ParameterFloating macrophytesT. domingensis
pH 7.1–7.4 7.0–7.3 
Conductivity (μmho cm−1208–223 170–200 
Alkalinity (CaCO3) (mg L−195.2–101.0 100.1–105.7 
Cl (mg L−110.6–11.9 4.2–10.1 
SO42– (mg L−18.2–10.1 5.0–8.7 
Na+ (mg L−127.1–32.4 28.1–33.8 
K+ (mg L−111.1–12.9 12.4–14.9 
Fe (mg L−10.202–0.234 0.210–0.284 
SRP (mg L−10.015–0.023 0.010–0.079 
TP (mg L−10.039–0.052 0.070–0.098 
NO2 (mg L−1ND (DL = 0.005) ND (DL = 0.005) 
NO3 (mg L−10.431–0.626 0.524–0.710 
NH4+ (mg L−10.631–0.936 0.315–1.18 
DO (mg L−16.9–7.8 6.7–8.0 
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