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Hachem Bekri, M., El Hmaidi, A., Jaddi, H.J., Kasse, Z., Mati El Faleh, E.M.E.F., Essahlaoui, A. and El Ouali, A. (2020) Use of Quality and Organic Pollution Indices in the Evaluation of the Physico-Chemical Quality of Surface Waters of Oueds Moulouya and Ansegmir (Haute Moulouya, NE Morocco). European Scientific Journal, ESJ, 16, 55.
https://doi.org/10.19044/esj.2020.v16n27p55

has been cited by the following article:

• TITLE: Chemical Characterization of Lake Togbadji

  AUTHORS: Vitalique Elegbede, Dominique Kpadonou, Joël Dossou-Gbete, Magloire Acakpo Nonvignon Gbaguidi, Bienvenu Olatundji Ogoudele

  KEYWORDS: Chemical Degradation, Aquatic Environment, Lake Togbadji

  JOURNAL NAME: Journal of Water Resource and Protection, Vol.15 No.12, December 27, 2023

  ABSTRACT: The present study focused on the chemical characterization of the watercourse of the Togbadji Lake wildlife ranch. The methodological approach followed is as follows: Bibliography review, Sampling campaign. The results obtained were the subject of descriptive statistics, the two-sample Wilcoxon test to determine the impact of different localities on the abundance of microbiological contaminants, a Principal Component Analysis (PCA) with the software R version 3.5.0, in order to group the pollution parameters according to the different levels and sources of contamination. From our results, it is found that the respective average values in dry and rainy seasons for ammonium ions are 0.38 ± 0.16 mg/L and 0.22 ± 0.03 mg/L; for nitrite ions 0.20 ± 0.25 mg/L and 0.02 ± 0.01 mg/L; for nitrate ions 3.72 ± 2.52 mg/L and 7.84 ± 4.91 mg/L; for total Kjeldahl nitrogen 1.27 ± 1.44 mg/L and 1.19 ± 1.49 mg/L; for orthophosphate ions 0.20 ± 0.25 mg/L and 0.02 ± 0.01 mg/L; for total phosphorus 0.04 ± 0.01 mg/L and 0.11 ± 0.23 mg/L; the chemical oxygen demand 93.36 ± 61.73 mg/L of O2 and 89.93 ± 66.11 mg/L of O2 and the biochemical oxygen demand over 5 days 25.50 ± 18.22 mg/L of O2 and 37 ± 33.15 of O2. It emerged that the main sources of pollution in Lake Togbadji are runoff water, discharges of various wastewater from artisanal activities, livestock farming and open defecation.