Physico-chemical and bacteriological quality of groundwater in a rural area of Western Niger: a case study of Bonkoukou

Adamou, Hassane Souley; Ibrahim, Boubacar; Salack, Seyni; Adamou, Rabani; Sanfo, Safiétou; Liersch, Stefan

doi:10.2166/wh.2020.082

Cited by 28 publications

(20 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…− , Cu, Ni, Pb, and Zn concentrations that resulted from anthropogenic activities (agriculture, house holding, and industry) [23,64]. Some studies on groundwater from Asia (Bokaro district, India) and Africa (Bonkoukou, Niger) indicated high values for the WQI (>150), showing inadequacy for drinking purposes or poor quality, due to the anthropogenic activities (agricultural waste, untreated domestic waters), but also due to natural processes (rock weathering, intrusion of sea water) [65][66][67][68]. In Europe, studies on karstic waters in the Megara basin, Greece indicated generally good water quality (WQI < 100) with few cases of poor water quality [5].…”

Section: Water Quality Indicesmentioning

confidence: 99%

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Moldovan

Hoaghia

Kovács

et al. 2020

Water

View full text Add to dashboard Cite

In rural areas without centralized water supply systems, inhabitants often use groundwater of unknown quality as drinking water, without understanding the possible negative consequences on their health. Karstic spring waters from Dobrogea region in Romania were assessed for their potential to be used as drinking water source, according to their quality and seasonal variation. The physico-chemical parameters of waters were compared with the guideline values for drinking water established by the World Health Organization and the Directive 98/83/EC. The nitrate and Cr concentrations exceeded the guideline value in the springs from Southern Dobrogea, but met the quality criteria in those from Northern Dobrogea, thus, to be used as drinking water, the karstic springs located in Southern Dobrogea require treatment for nitrates removal. Heavy metals pollution indices showed low to medium cumulative heavy metal pollution in all springs, while the human health risk assessment by oral exposure indicated possible noncarcinogenic risks of nitrates, both for adults and children in springs from South Dobrogea. A rigorous monitoring of the water quality before human consumption is recommended for all four studied water sources.

show abstract

Section: Water Quality Indicesmentioning

confidence: 99%

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Moldovan

Hoaghia

Kovács

et al. 2020

Water

View full text Add to dashboard Cite

show abstract

“…nitrates and or chlorides [11,12,13,14]. Recent research have implicated on-site sanitation facilities such as pit latrines, leaking septic, waste water flowing on the surface and other improper waste disposal methods serving as point sources of groundwater contamination in many urban areas [15,16], peri urban [1] and rural areas [17,18] in SSA. In addition, faecal pollution of groundwater sources has been linked to infiltration of contaminated surface water [19].…”

Section: Introductionmentioning

confidence: 99%

Groundwater pollution assessment in a coastal aquifer in Cape Coast, Ghana

Lutterodt¹,

Miyittah

Addy³

et al. 2021

Heliyon

View full text Add to dashboard Cite

This work presents an assessment of the chemico-physical and microbial quality of water samples from hand-dug wells in the shallow aquifer of three communities neighbouring the University of Cape Coast, Ghana. Sanitary risk inspection was undertaken at each well location and the physical parameters including electrical conductivity, pH, Dissolved Oxygen (DO) and etc. were measured in situ via probes. Microbial groundwater quality was analysed using membrane filtration method. Samples of water were analysed for the pollution indicator anions including chloride and nitrate. In addition, the possible persistence of bacteria in groundwater environments in the absence of predator organisms were studied and results fitted with exponential, second-order polynomial and linear distribution models.Sanitary risk inspection and microbial quality results indicate that all the wells were at risk and polluted with total coliforms from on-site sanitation. Twenty-five percent (7 out of 28) of the wells recorded DO concentration within acceptable limits of drinking water standards (> 5 mg/L). Average chloride concentration, 360.5 mg/L (range: 46 mg/L to 844 mg/L) and average electrical conductivity value of 1.5 mS/cm (range: 213 μS/cm to 2.7 mS/cm) were both higher than WHO recommended limits. Acidic conditions (pH < 6.5) were observed in water samples, indicating mineralisation of the aquifer. The high EC values and chloride content in groundwater were attributable to dry atmospheric aerosol deposition and possible mineral dissolution in the aquifer. Bacteria regrowth experiment results indicate that second-order polynomial distribution best describes bacteria inactivation rates in the absence of antagonist predators in our work. Extrapolation of time for complete inactivation of bacteria under groundwater environment ranged from 0.1 to 4 years indicating bacteria can persist in aquifers for long period of time. It was concluded that all the wells are at risk of pollution and polluted with faecal matter and atmospheric aerosols.

show abstract

“…They also find abnormal concentrations of NO 2 and NO 3 in almost half of analysed samples, which may have great danger for the population, especially for the juvenile population. 19 High nitrate concentrations are reported in some groundwater studies in Nigeria, Morocco and Togo. 20,21,22 The pH of drinking water has no immediate direct effects on human health but has some indirect health effects by bringing changes in other water quality parameters such as solubility of metals and survival of pathogens.…”

Section: Table 2 Selected Chemical-physical Parameters Their Median Values In All Water Wells and Comparison With The National Regulationmentioning

confidence: 97%

Water Quality and Safety of Potable Water Wells in Gjakova Region, Kosovo

Koçinaj¹,

Ukehaxhaj²,

Boshnjaku³

et al. 2021

JOSHA

View full text Add to dashboard Cite

At a basic level, everyone needs access to safe water in adequate quantities for drinking, cooking, personal hygiene and sanitation facilities, and it is a fundamental requirement for good health and also a human right. The study is conducted from the University of Gjakova and performed in collaboration with drinking water authority National Institute of Public Health and other local authorities in Kosovo. Water samples were transported from 20 samples to the laboratory at a temperature of (4-50C). The analysis of chemical and microbiological parameters is performed according to international standard methods (ISO methods). Detection of heavy metals in drinking water is performed by ICP-MS according to EPA 6020 A. Results: from 30 physical chemical parameters very high ammonium concentrations (2.6mg/l and higher) are observed in two water well. Conclusion: Studies of microbial contamination and sanitary risk could be improved by adhering to higher standards, including those outlined in our quality criteria. josha.org

show abstract

Physico-chemical and bacteriological quality of groundwater in a rural area of Western Niger: a case study of Bonkoukou

Cited by 28 publications

References 10 publications

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Quality and Health Risk Assessment Associated with Water Consumption—A Case Study on Karstic Springs

Groundwater pollution assessment in a coastal aquifer in Cape Coast, Ghana

Water Quality and Safety of Potable Water Wells in Gjakova Region, Kosovo

Contact Info

Product

Resources

About