Vol. 7, Issue 1 (2019)
Chemical pollution of the waters and sediments of the Aplahoue agricultural production zone in Benin
Fig. 1: Total organic carbon content in water samples.
Fig. 2: Spatial variation of ammonium ion concentrations in water samples.
Fig. 3: Spatial variation of different concentrations of nitrate ion in water samples
Fig. 4: Nitrite ion content in the water samples analyzed.
Fig. 5: Concentration of ortho-phosphate ions in the water samples analyzed.
