Prevalence of water-related diseases and groundwater (drinking-water) contamination in the suburban municipality of Mont Ngafula, Kinshasa (Democratic Republic of the Congo)
| Autor: | John Poté, Amandine Laffite, Mathieu K. Bokolo, Crispin K. Mulaji, Pius T. Mpiana, Florian Thevenon, Dhafer Mohammed M. Al Salah, Michel L. Kapembo |
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| Rok vydání: | 2019 |
| Předmět: |
Wet season
Environmental Engineering Sanitation Epidemiology Tropical conditions Faecal indicator bacteria Indicator bacteria 010501 environmental sciences 01 natural sciences Toxicology 03 medical and health sciences Feces 0302 clinical medicine Cholera Waterborne Diseases ddc:550 medicine Prevalence Humans Open defecation 030212 general & internal medicine Cities SDG 6 Groundwater 0105 earth and related environmental sciences ddc:333.7-333.9 Bacteria Prevention Drinking Water Waterborne diseases General Medicine Drinking water quality medicine.disease Pollution 6. Clean water 3. Good health Water resources Democratic Republic of the Congo Environmental science Water quality Seasons Surface runoff Human risk |
| Zdroj: | Journal of Environmental Science and Health, Part A (2019) |
| ISSN: | 1532-4117 1093-4529 |
| Popis: | An epidemiological survey conducted among users of water points and medical institutions in the N'djili Kilambu neighborhood of Kinshasa in Democratic Republic of the Congo, indicates that waterborne diseases have already affected more than 60% of the patients admitted to local clinics between 2013 and 2017. In order to raise public and political awareness about this hazardous health issue resulting from the lack of safely managed sanitation systems, this study investigates the microbial quality of drinking water from local water resources. Water samples were collected from nine wells and streams used as drinking sources, and analyzed for Fecal Indicator Bacteria (FIB), including Escherichia coli, Enterococcus, and Total Coliforms. Physicochemical parameters (pH, electrical conductivity, O2, and soluble ions (Na+, K+, PO43-, SO42-, NO3-, NO2-) were also analyzed. Except for NO3- and NO2-, the average concentrations of the physicochemical parameters and dissolved ions generally meet the guidelines for drinking/domestic water quality. By contrast, the results reveal high levels of FIB in the water samples collected during both dry and wet seasons. The contamination is significantly higher during the wet season compared to dry season, due to increased runoff, open defecation practices, and more frequent overflow of onsite sanitation systems and septic tanks. |
| Databáze: | OpenAIRE |
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