Effects of Effluent from a Dumpsite on the Physicochemical Properties of River Achichum in Bamendakwe, Northwest Cameroon  

作　　者：Mofor Nelson Alakeh Keuwo Tiayong Francois Nchofua Festus Biosengazeh Mikwa Cyprian Chunkang Njoyim Estella Buleng Tamungang Mofor Nelson Alakeh;Keuwo Tiayong Francois;Nchofua Festus Biosengazeh;Mikwa Cyprian Chunkang;Njoyim Estella Buleng Tamungang(Department of Civil Engineering and Architecture, National Higher Polytechnic Institute (NAHPI), The University of Bamenda, Bambili, Cameroon;Department of Chemistry, Higher Teacher Training College, The University of Bamenda, Bambili, Cameroon;Research Unit of Noxious Chemistry and Environmental Engineering (RUNOCHEE), Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon;Clean Water Institute, Department of Chemistry and Biochemistry, School of STEM, Calvin University, Grand Rapids, Michigan, USA)

机构地区：[1]Department of Civil Engineering and Architecture, National Higher Polytechnic Institute (NAHPI), The University of Bamenda, Bambili, Cameroon [2]Department of Chemistry, Higher Teacher Training College, The University of Bamenda, Bambili, Cameroon [3]Research Unit of Noxious Chemistry and Environmental Engineering (RUNOCHEE), Department of Chemistry, Faculty of Science, University of Dschang, Dschang, Cameroon [4]Clean Water Institute, Department of Chemistry and Biochemistry, School of STEM, Calvin University, Grand Rapids, Michigan, USA

出　　处：《Journal of Environmental Protection》2024年第9期934-947,共14页环境保护（英文）

摘　　要：This study was aimed to assess the effects of effluent from a dumpsite on the physicochemical properties of river Achichum in Bamendakwe in the Bamenda I municipality, Northwest Region of Cameroon. The quality of water used for domestic purposes by the population of this area is mostly appreciated through its organoleptic assessment while no attention is paid to the physicochemical and microbiological properties. Samples (upstream, effluent, and downstream) were collected in the months of September 2022 and February 2023 and examined for organoleptic, physicochemical and bacteriological characteristics using standard methods. The river was contaminated to different extents by nitrates (28.56 - 149.91 mg/L), sulphates (246.89 - 725.42 mg/L) and heavy metals (0.01 - 0.04 mg/L for lead and 0.98 - 2.15 mg/L for aluminum). This contamination could be due to an inflow of the untreated effluent into the river. The river contained a high pollution level of lead and aluminum. Bacteriological investigations revealed that all the analyzed samples from the river contained indicators of faecal pollution such as Enterobacteria spp., E. coli, Streptococcus spp., Salmonella spp., Shigella spp., Staphylococcus spp. and Vibrio spp. Consequently, its utilization exposes consumers to health risks. Thus, water from the river should be treated prior to consumption.This study was aimed to assess the effects of effluent from a dumpsite on the physicochemical properties of river Achichum in Bamendakwe in the Bamenda I municipality, Northwest Region of Cameroon. The quality of water used for domestic purposes by the population of this area is mostly appreciated through its organoleptic assessment while no attention is paid to the physicochemical and microbiological properties. Samples (upstream, effluent, and downstream) were collected in the months of September 2022 and February 2023 and examined for organoleptic, physicochemical and bacteriological characteristics using standard methods. The river was contaminated to different extents by nitrates (28.56 - 149.91 mg/L), sulphates (246.89 - 725.42 mg/L) and heavy metals (0.01 - 0.04 mg/L for lead and 0.98 - 2.15 mg/L for aluminum). This contamination could be due to an inflow of the untreated effluent into the river. The river contained a high pollution level of lead and aluminum. Bacteriological investigations revealed that all the analyzed samples from the river contained indicators of faecal pollution such as Enterobacteria spp., E. coli, Streptococcus spp., Salmonella spp., Shigella spp., Staphylococcus spp. and Vibrio spp. Consequently, its utilization exposes consumers to health risks. Thus, water from the river should be treated prior to consumption.

关 键 词：EFFLUENT UPSTREAM DOWNSTREAM Water Quality Faecal Contamination Bamendakwe 

分 类 号：X70[环境科学与工程—环境工程]