Agricultural Contamination of the Surface Waters of the Upper Ouémé in Benin: The Case of Heavy Metals and Pesticides  

作　　者：Armelle Sabine Yélignan Hounkpatin Nonvignon Martial Fassinou Fadéby Modeste Gouissi Zoulkanerou Orou Piami Dossou Armel Géraldo Houndeton Souradjou Orou Goura Wakili Bolatito Yessoufou Tayéwo Sylvain Biaou Armelle Sabine Yélignan Hounkpatin;Nonvignon Martial Fassinou;Fadéby Modeste Gouissi;Zoulkanerou Orou Piami;Dossou Armel Géraldo Houndeton;Souradjou Orou Goura;Wakili Bolatito Yessoufou;Tayéwo Sylvain Biaou(Laboratory of Hygiene, Sanitation, Toxicology and Environmental Health (HECOTES), The Training Centre Interfacultaire and Environmental Research for Sustainable Development (CIFRED) of the University of Abomey (UAC), Cotonou, Benin;Plurildisciplinary Research Laboratory for Technical Education (LARPET) of the University of Sciences, Technologies, Engineering and Mathematics of Abomey (UNSTIM), Lokossa, Benin;Laboratoire d’Ecologie, de Santé et de Productions Animales (LESPA), Faculté d’Agronomie (FA), Université de Parakou (UP), Parakou, Bénin)

机构地区：[1]Laboratory of Hygiene, Sanitation, Toxicology and Environmental Health (HECOTES), The Training Centre Interfacultaire and Environmental Research for Sustainable Development (CIFRED) of the University of Abomey (UAC), Cotonou, Benin [2]Plurildisciplinary Research Laboratory for Technical Education (LARPET) of the University of Sciences, Technologies, Engineering and Mathematics of Abomey (UNSTIM), Lokossa, Benin [3]Laboratoire d’Ecologie, de Santé et de Productions Animales (LESPA), Faculté d’Agronomie (FA), Université de Parakou (UP), Parakou, Bénin

出　　处：《Journal of Agricultural Chemistry and Environment》2024年第1期83-99,共17页农业化学和环境（英文）

摘　　要：Objective: The main objective of this study was to assess the degree of contamination of surface waters by heavy metals and pesticides. Method: To this end, data were collected in December 2022 from four specific sampling stations: Okpara, Térou, Affon and Adjiro. Levels of heavy metals, including cadmium, chromium, copper, iron, mercury, nickel and lead, were measured and subjected to in-depth statistical analysis using graphical summation models. In addition, the concentrations of pesticide active ingredients present in the samples were interpreted and evaluated. The statistical data collected during this study were processed using R software, version 3.5.0. Results: The values obtained at the different stations Okpara, Térou, Affon and Adjiro are respectively Arsenic (2 × 10^-4 mg/L;2.2 × 10^-1 mg/L;1.2 × 10^-4 mg/L;2 × 10^-4 mg/L), Cadmium (4.4 × 10^-5 mg/L;1.1 × 10^-2 mg/L;10^-4 mg/L;4 × 10^-4 mg/L). Then Copper (7 × 10^-4 mg/L;3 × 10^-3 mg/L;7 × 10^-4 mg/L;1 × 10^-4 mg/L), Iron (1.51 mg/L;6.4 × 10^-1 mg/L;2.0012 mg/L;2.9 × 10^-1 mg/L), Lead (0 mg/L;0 mg/L;1.5 × 10^-3 mg/L;1.5 × 10^-3 mg/L). Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (Cadmium, Chromium, Copper, Iron, Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (cadmium, chromium, copper, iron, mercury, nickel and lead) were all below the guideline standards set by the WHO in 2006 for uncontaminated surface waters. This indicates that the surface waters of the Upper Ouémé were below acceptable contamination thresholds in terms of heavy metals. However, the presence of pesticide active ingredients such as cyfluthrin, endosulfan-alpha, endosulfan-beta, profenosfos, tihan, atrazine, gala super and glycel clearly Objective: The main objective of this study was to assess the degree of contamination of surface waters by heavy metals and pesticides. Method: To this end, data were collected in December 2022 from four specific sampling stations: Okpara, Térou, Affon and Adjiro. Levels of heavy metals, including cadmium, chromium, copper, iron, mercury, nickel and lead, were measured and subjected to in-depth statistical analysis using graphical summation models. In addition, the concentrations of pesticide active ingredients present in the samples were interpreted and evaluated. The statistical data collected during this study were processed using R software, version 3.5.0. Results: The values obtained at the different stations Okpara, Térou, Affon and Adjiro are respectively Arsenic (2 × 10^-4 mg/L;2.2 × 10^-1 mg/L;1.2 × 10^-4 mg/L;2 × 10^-4 mg/L), Cadmium (4.4 × 10^-5 mg/L;1.1 × 10^-2 mg/L;10^-4 mg/L;4 × 10^-4 mg/L). Then Copper (7 × 10^-4 mg/L;3 × 10^-3 mg/L;7 × 10^-4 mg/L;1 × 10^-4 mg/L), Iron (1.51 mg/L;6.4 × 10^-1 mg/L;2.0012 mg/L;2.9 × 10^-1 mg/L), Lead (0 mg/L;0 mg/L;1.5 × 10^-3 mg/L;1.5 × 10^-3 mg/L). Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (Cadmium, Chromium, Copper, Iron, Mercury, nickel and chromium were not detected in surface waters. It is important to note that the values obtained for trace metals (cadmium, chromium, copper, iron, mercury, nickel and lead) were all below the guideline standards set by the WHO in 2006 for uncontaminated surface waters. This indicates that the surface waters of the Upper Ouémé were below acceptable contamination thresholds in terms of heavy metals. However, the presence of pesticide active ingredients such as cyfluthrin, endosulfan-alpha, endosulfan-beta, profenosfos, tihan, atrazine, gala super and glycel clearly

关 键 词：Agricultural Contamination Heavy Metals PESTICIDES Surface Water North Benin 

分 类 号：TG1[金属学及工艺—金属学]