Hydrogeochemistry of Surface and Ground Water in Alatening Village, Northwest Region, Cameroon

The purpose of this study was to evaluate petrography and the quality of water for drinking purposes in Alatening, Northwest Cameroon, with respect to the World Health Organization (WHO) standards. The indigenes of the study area, as well as other dwellers in rural areas, consume water from these sources whose quality is unknown; thus, it can lead to contamination and waterborne diseases. Three springs and two streams of Alatening village were investigated in early December 2017 and late July 2018 for organoleptic, physicochemical, and bacteriological parameters using standard methods. The petrographic studies revealed trachyte and benmoreite, and weathering of minerals from these rocks into the soil leads to the water-rock interaction, thus water hydrogeochemistry. All the water samples were clean except that of Alabong which had slight odour due to leaf fall. pH showed acidic water with the springs of Ngog and Alabong falling below the WHO limit in the dry season. Electrical conductivity and total dissolved solids (TDS) were low implying low mineralised water which can also lead to shortage of important minerals in humans. All the essential ions were found within the WHO guideline values without any significant change in concentrations between seasons ( p > 0.05 ). The water facies were such as Mg-Ca, Cl-Ca, and HCO3-CO3, suggesting an influence of rock silicate weathering and anthropogenic influence. Aluminium and iron contents were above the WHO limit in both seasons due to their abundance in the soils which could be a risk factor for the local population. Faecal coliforms as well as specific bacteria such as Enterobacter, Escherichia coli, Streptococcus, Salmonella, and Shigella were found in all the water samples, attributable to poor hygiene. Health data in the locality indicated the prevalence of typhoid, dysentery, and amoebiasis with a total of 2702 cases recorded between 2016 and 2017, therefore requiring treatment before consumption.

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Suitability of Usuma Dam Water for Domestic Use in Federal Capital Territory, Abuja, Nigeria

Asian Journal of Environment & Ecology ◽

10.9734/ajee/2020/v13i330185 ◽

2020 ◽

pp. 37-48

Author(s):

Sani Mustapha Omolori ◽

Marcus Danjuma ◽

Magaji Joshua

Keyword(s):

Water Samples ◽

World Health ◽

Total Hardness ◽

Mean Values ◽

Water Properties ◽

Quality Of Water ◽

Regulatory Standard ◽

Domestic Use ◽

Health Organization ◽

Domestic Purpose

The quality of water sources should be tested regularly for various parameters of interest to ensure it meet the standard qualities required for intended use(s). Thus, the suitability of Usuma dam water for domestic use in Nigeria’s Federal Capital Territory Abuja was assessed. The objectives were to assess the properties of Usuma dam water and ascertain its suitability for domestic purpose. A total of thirty (30) water samples were fetched directly. Ten (10) samples each from upstream, downstream and middle were collected. Precautions were taken to prevent sample contamination. Data collected were analyzed as follows: The water properties was analyzed using range and mean, suitability of water properties for domestic purpose was analyzed by comparing range and mean values with Nigerian Standard for Drinking Water Quality (NSDWQ) and the World Health Organization (WHO) standard for domestic uses. Result showed that water sample were slight acidic (6.83), EC was low (122-180 µs/cm3), TDS (120-144 Mg/l), TSS (1.2-1.7 Mg/l, turbidity (0.29-5.37 Mg/l,) total hardness (7.18-40.46 Mg/l) DO (3.8-4.7 Mg/l), BOD (2.2-4.21 Mg/l), and (25.6-55.4 Mg/l). Minerals nutrients (Ca, Mg, Cl-,Na, K, NO-3 and PO-4. ) in water samples were lower than regulatory standard while heavy metals (Fe, Si, Zn, Pb, Cr, Cd, Cu, Mn, F and B) were relatively higher than regulatory standard. It was concluded that water from Usuma dam are not safe for domestic purpose especially drinking.

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A study on contamination risks of wells from Kollam district, southern India

Journal of Water Sanitation and Hygiene for Development ◽

10.2166/washdev.2014.151 ◽

2014 ◽

Vol 4 (4) ◽

pp. 727-732 ◽

Cited By ~ 2

Author(s):

S. Usha ◽

P. S. Rakesh ◽

S. Subhagan ◽

M. Shaji ◽

K. Salila

Keyword(s):

High Risk ◽

Hepatitis A ◽

Southern India ◽

World Health ◽

Waterborne Diseases ◽

Quality Of Water ◽

Dug Wells ◽

Kerala State ◽

Health Organization

The key to provide microbiologically safe drinking-water lies in understanding the various mechanisms by which water gets contaminated. This study assessed the risk of contamination and microbiological and chemical quality of water from protected dug wells in five selected Panchayats in Kollam district, Kerala state, southern India. Sanitary inspection was conducted for 70 protected dug wells using World Health Organization established procedures for risk of contamination scoring. Microbiological and chemical analysis of water samples was done. The areas with higher incidence of hepatitis A had a higher proportion of wells with high risk of contamination scores (p = 0.006). High risk of contamination scores for wells were associated with higher incidence of fecal pollution (odds ratio 11.80; 95% confidence interval 1.87–74.86). The study highlighted the need to make the wells safe in this area, for control of waterborne diseases.

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Spatial And Seasonal Variation For Water Quality Indices of Gomal Zam Dam And Its Tributaries In The South Waziristan District, Pakistan

10.21203/rs.3.rs-795754/v1 ◽

2021 ◽

Author(s):

Said Muhammad ◽

Insha Ullah

Keyword(s):

Water Quality ◽

Water Samples ◽

Winter Season ◽

World Health ◽

Dominant Factor ◽

Water Characteristics ◽

Quality Of Water ◽

Spatial And Seasonal Variation ◽

Health Organization

Abstract This study investigated the quality of water in the Gomal Zam Dam and its tributaries, south Waziristan District, Pakistan. For this purpose, water samples were collected from the Gomal Zam Dam and its tributaries in the winter and summer seasons (n=24 in each season). Water samples were analyzed for the anions using a multi-parameter analyzer (CONSORT 6030, Belgium) and cations by the Atomic Absorption Spectrophotometer (AAS, AAnalyst 700, PerkinElmer). Water characteristics were compared and found within drinking water guidelines set by the world health organization (WHO), except turbidity. Water characteristics were evaluated for the water quality index (WQI) and sodium hazards such as sodium adsorption ratio (SAR) and sodium percentage (Na%). Based on WQI and sodium hazards, the water of Gomal Zam Dam and its tributaries were observed as good and in permissible levels for drinking and irrigation water, respectively. The winter season has slightly poor water quality compared to the summer season due to higher contamination. Gibbs’s and Piper's models showed that the water quality of Gomal Zam Dam and its tributaries was mainly characterized by the weathering of bedrocks. The studied water is classified as Na-Cl type and Mg-HCO3 types in the summer and winter seasons, respectively. Statistical analyses revealed that geogenic sources of rock weathering are the dominant factor for controlling the water quality of the area.

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Assessment of polychlorinated biphenyls and organochlorine pesticides in water samples from the Yamuna River

Journal of Xenobiotics ◽

10.4081/xeno.2012.e6 ◽

2012 ◽

Vol 2 (1) ◽

pp. 6 ◽

Cited By ~ 13

Author(s):

Bhupander Kumar ◽

Satish Kumar Singh ◽

Meenu Mishra ◽

Sanjay Kumar ◽

Chandra Shekhar Sharma

Keyword(s):

Polychlorinated Biphenyls ◽

Organochlorine Pesticides ◽

Water Samples ◽

Atmospheric Transport ◽

World Health ◽

Yamuna River ◽

Guideline Values ◽

Wide Range ◽

Health Organization ◽

Toxicity Equivalent

Polychlorinated biphenyls (PCBs), hexachlorocyclohexane (HCH) and dichlorodiphenyltrichloroethane (DDT) are toxic, persistent and bioaccumulative long-range atmospheric transport pollutants. These are transported worldwide affecting remote regions far from their original sources, and can transfer into food webs with a wide range of acute and chronic health effects. India ratified the Stockholm Convention with the intention of reducing and eliminating persistent organic pollutants (POPs), and encouraged the support of research on POPs. Despite the ban and restriction on the use of these chemicals in India, their contamination of air, water, sediment, biota and humans has been reported. In this study, surface water samples were collected during January 2012 from the Yamuna River in Delhi, India, and analyzed for PCBs and organochlorine pesticides (OCPs). The concentrations of ΣPCBs and ΣOCPs ranged between 2-779 ng L–1 and from less than 0.1 to 618 ng L–1 (mean 99±38 ng L–1 and 221±50 ng L–1, respectively). The PCB homolog was dominated by 3-4 chlorinated biphenyls. In calculating the toxicity equivalent of dioxin-like PCBs (dl-PCBs)using World Health Organization toxic equivalency factors, dl-PCBs accounted for 10% of a total of 27 PCBs. The concentration of ΣHCH ranged between less than 0.1 and 285 ng L–1 (mean 151±32 ng L–1). However, ΣDDTs concentrations varied between less than 0.1 and 354 ng L–1 (mean 83±26 ng L–1). The concentrations were lower than the US guideline values; however, levels of lindane exceeded those recommended in guidelines. Further in-depth study is proposed to determine the bioaccumulation of these pollutants through aquatic biota to assess the risk of contaminants to human health.

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Study of Physicochemical Properties of Commercial Drinking Bottled Water Brands

Engineering, Technology & Applied Science Research ◽

10.48084/etasr.2173 ◽

2018 ◽

Vol 8 (6) ◽

pp. 3576-3579 ◽

Cited By ~ 1

Author(s):

A. R. Jatoi ◽

A. Q. Jakhrani ◽

K. C. Mukwana ◽

A. N. Laghari ◽

M. M. Tunio

Keyword(s):

Physicochemical Properties ◽

Water Samples ◽

Tap Water ◽

Industrial Effluents ◽

Quality Parameters ◽

Bottled Water ◽

World Health ◽

Guideline Values ◽

Quality Checks ◽

Health Organization

Drinking water quality is being affected by industrial effluents, pesticides and fertilizers, poor sanitation services and unhygienic practices. Thus, upper and middle-class people used to prefer bottled water for drinking instead of tap water. Increasing demand for bottled water leads to the presence of low quality branded waters in the market due to the high demand and improper quality checks. In this regard, this study is carried out to assess the physicochemical properties of various branded bottled waters. For that, ten different water brand samples, coded from S1 to S10, were collected from Safoora Goth, Karachi. Various physicochemical quality parameters of branded water samples were analyzed according to the set procedures of American Society for Testing and Materials. It was discovered that the pH levels of S9 and S8 bottled water brands were slightly less than World Health Organization guideline values. The physical and chemical quality parameters of S1, S2, S4, S5, S7, and S10 branded bottled water samples were found within standards.

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OCORRÊNCIA DO HERBICIDA TEBUTHIURON NA ÁGUA SUBTERRÂNEA DA MICROBACIA DO CÓRREGO ESPRAIADO, RIBEIRÃO PRETO - SP

Pesticidas Revista de Ecotoxicologia e Meio Ambiente ◽

10.5380/pes.v11i0.3136 ◽

2001 ◽

Vol 11 ◽

Cited By ~ 4

Author(s):

MARCO ANTONIO FERREIRA GOMES ◽

CLÁUDIO A. SPADOTTO ◽

VERA LÚCIA LANCHOTTE

Keyword(s):

Biological Activity ◽

Low Temperature ◽

Water Samples ◽

Critical Level ◽

World Health ◽

Contamination Risk ◽

Soil Mobility ◽

Drinkable Water ◽

Health Organization ◽

Monitoring Area

Pretendeu-se mostrar que o herbicida Tebuthiuron, selecionado entre outros usados na cultura de cana-de-açúcar, oferece risco de contaminação para a água subterrânea em função de suas características físico-químicas, principalmente, quando aplicado em áreas de recarga direta de aqüíferos consideradas de alta vulnerabilidade natural. Assim, efetuou-se monitoramento do referido herbicida no período compreendido entre 1995 e 1999, coletando amostras de água de poço semi-artesiano, com 53 metros de profundidade, localizado na microbacia do Córrego Espraiado, município de Ribeirão Preto/SP, Brasil, no qual tem sido freqüente o uso do produto em questão. Para efeito de testemunha da amostra de água foi considerado um poço semi-artesiano de profundidade semelhante, localizado cerca de três quilômetros de distância do poço objeto de monitoramento. Os resultados obtidos mostraram que o Tebuthiuron está presente em todas as amostras analisadas, embora em concentrações abaixo do nível crítico para padrão de potabilidade, conforme os limites mais restritivos estabelecidos pela Organização Mundial de Saúde (para os pesticidas em uso é de 0,1 µg/L por pesticida e de 0,5 µg/L para pesticidas totais). Mesmo com os baixos valores de concentração encontrados fica evidente que o Tebuthiuron está atingindo a água subterrânea podendo aumentar sua concentração pela existência de condições ambientais favoráveis à preservação da molécula em profundidade (tais como baixa temperatura, baixa atividade biológica e ausência de luz). Caso o nível crítico seja atingido, o risco de contaminação poderia ser minimizado por meio da substituição do Tebuthiuron por outro herbicida com menor mobilidade no perfil do solo. OCCURRENCE OF THE HERBICIDE TEBUTHIURON IN GROUNDWATER OF ESPRAIADO CATCHMENT RIBEIRAO PRETO - SP (BRASIL) Abstract The herbicide Tebuthiuron, selected among others utilized in sugar-cane crop, shows groundwater contamination risk due to its physicochemical properties, mainly, when applied in direct recharge areas of aquifers considered of high natural vulnerability. In this context, the monitoring of this herbicide in the period of 1995 through 1999 was realized, by collecting water samples of aquifers 53 m depht, located in Espraiado catchment, Ribeirao Preto/SP (Brazil) in which the product has been extensively used. For blank assays it was utilized water samples collected similarly 3 Km away from the monitoring area. The results obtained showed that Tebuthiuron is present in all analyzed samples. Although in lower concentrations of the critical level for drinkable water, following the restrictive limits established by World Health Organization (for pesticides in use is 0,1 µg/L by pesticide and of 0,5 µg/L for total pesticides). Even if the low concentration values found it is evident that the Tebuthiuron affects the groundwater, and could enhance its concentration by favorable ambiental conditions for molecule preservation in deep water (such as low temperature, low biological activity and absence of light). The present scenary reflects contamination risk in case of reaching the critical level, which could only be minimized by the substitution of Thebuthiuron for other herbicide with lower soil mobility.

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Physical Activity Patterns in India Stratified by Zones, Age, Region, BMI and Implications for COVID-19: A Nationwide Study

Annals of Neurosciences ◽

10.1177/0972753121998507 ◽

2021 ◽

pp. 097275312199850

Author(s):

Vivek Podder ◽

Raghuram Nagarathna ◽

Akshay Anand ◽

Patil S. Suchitra ◽

Amit Kumar Singh ◽

...

Keyword(s):

Physical Activity ◽

World Health Organization ◽

Rural Areas ◽

World Health ◽

Noncommunicable Diseases ◽

Home Work ◽

The World ◽

Health Organization ◽

Physically Inactive ◽

At Home

Rationale: India has a high prevalence of noncommunicable diseases (NCDs), which can be lowered by regular physical activity. To understand this association, recent population data is required which is representative of all the states and union territories of the country. Objective: We aimed to investigate the patterns of physical activity in India, stratified by zones, body mass index (BMI), urban, rural areas, and gender. Method: We present the analysis of physical activity status from the data collected during the phase 1 of a pan-India study. This ( Niyantrita Madhumeha Bharata 2017) was a multicenter pan-India cluster sampled trial with dual objectives. A survey to identify all individuals at a high risk for diabetes, using a validated instrument called the Indian Diabetes Risk Score (IDRS), was followed by a two-armed randomized yoga-based lifestyle intervention for the primary prevention of diabetes. The physical activity was scored as per IDRS (vigorous exercise or strenuous at work = 0, moderate exercise at home/work = 10, mild exercise at home/work = 20, no exercise = 30). This was done in a selected cluster using a mobile application. A weighted prevalence was calculated based on the nonresponse rate and design weight. Results: We analyzed the data from 2,33,805 individuals; the mean age was 41.4 years (SD 13.4). Of these, 50.6% were females and 49.4% were males; 45.8% were from rural areas and 54% from urban areas. The BMI was 24.7 ± 4.6 kg/m 2 . Briefly, 20% were physically inactive and 57% of the people were either inactive or mildly active. 21.2% of females were found physically inactive, whereas 19.2% of males were inactive. Individuals living in urban localities were proportionately more inactive (21.7% vs. 18.8%) or mildly active (38.9% vs. 34.8%) than the rural people. Individuals from the central (29.6%) and south zones (28.6%) of the country were also relatively inactive, in contrast to those from the northwest zone (14.2%). The known diabetics were found to be physically inactive (28.3% vs. 19.8%) when compared with those unaware of their diabetic status. Conclusion: 20% and 37% of the population in India are not active or mildly active, respectively, and thus 57% of the surveyed population do not meet the physical activity regimen recommended by the World Health Organization. This puts a large Indian population at risk of developing various NCDs, which are being increasingly reported to be vulnerable to COVID-19 infections. India needs to adopt the four strategic objectives recommended by the World Health Organization for reducing the prevalence of physical inactivity.

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Physico-chemical quality of drinking water in the Njoro sub-county in Kenya

Journal of Water Sanitation and Hygiene for Development ◽

10.2166/washdev.2018.001 ◽

2018 ◽

Vol 8 (3) ◽

pp. 497-507

Author(s):

Philip Ruciaka Kirianki ◽

Edward Muchiri ◽

Natasha Potgieter

Keyword(s):

Drinking Water ◽

Water Samples ◽

Water Source ◽

World Health ◽

Water Shortages ◽

Storage Container ◽

Standard Assessment ◽

Physico Chemical ◽

Study Support ◽

Health Organization

Abstract Njoro sub-county in Kenya suffers from constant water shortages causing the residents to rely on both improved and unimproved water sources in the area. The households in the sub-county also use different household storage containers to store drinking water in times when water is not readily available. This study was therefore undertaken to assess selective physico-chemical parameters of water used by the population for drinking purposes using standard assessment methods. A total of 372 water source samples and 162 storage container water samples were tested over a period of three months. Turbidity (0.70–273.85 NTU), iron (0.7–2.10 mg/L), fluoride (0.15–4.01 mg/L), manganese (0.01–0.37 mg/L), and nitrate (0.09–27.90 mg/L) levels in water samples were generally higher than the Kenya Bureau of Standards (KEBS) and/or the World Health Organization (WHO) water quality recommendations for safe drinkable water. The results from this study support the need for continuous monitoring and treating drinking water at the points of collection and of consumption to minimize the long-term health effects on communities consuming this water.

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Quality of water sources in Southwestern Uganda using the compartment bag test (CBT): a cross-sectional descriptive study

Journal of Water Sanitation and Hygiene for Development ◽

10.2166/washdev.2019.270 ◽

2019 ◽

Vol 9 (4) ◽

pp. 683-693

Author(s):

Richard Onyuthi Apecu ◽

Lucas Ampaire ◽

Edgar Mugema Mulogo ◽

Fred Norman Bagenda ◽

Afsatou Traore ◽

...

Keyword(s):

Water Samples ◽

Water Sources ◽

World Health ◽

Most Probable Number ◽

Physical Parameters ◽

Probable Number ◽

Gravitational Flow ◽

Quality Of Water ◽

Compartment Bag Test

Abstract The aim of this study was to assess the bacteriological quality of water sources in the two rural areas of Uganda using the compartment bag test (CBT). In total, 200 water samples were collected from 69 different water sources and processed within 6 h of collection. Positive and negative controls were processed each day together with water samples. Physical parameters were measured in situ. Descriptive statistics were used to generate mean, minimum, maximum, standard deviations and percentages. The results indicated that 29% of the water sources met the National Standards and World Health Organization (WHO) Guidelines for drinking water. Sixty percent of the borehole, 44% of gravitational flow taps and 14% of roof rain water met the required standards. Of the open water sources, 75% of the rivers, 50% of open channels and 43% of unprotected dug wells plus 25% of protected springs and 9% of gravitational flow schemes had most probable number counts >100 Escherichia coli/100 mL of water. Most of the water sources in the study areas were not fit for human consumption without prior treatment. The CBT was found to be robust and easy to use in all field situations. The mean physical parameters of water sources were within the acceptable limits.

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Geographic Inequalities in Accessing Improved Water and Sanitation Facilities in Nepal

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph16071269 ◽

2019 ◽

Vol 16 (7) ◽

pp. 1269 ◽

Cited By ~ 2

Author(s):

Chao Wang ◽

Jing Pan ◽

Sanni Yaya ◽

Ram Bilash Yadav ◽

Dechao Yao

Keyword(s):

National Level ◽

Water Sources ◽

Wash Water ◽

World Health ◽

Demographic And Health Surveys ◽

Cross Sectional ◽

Water And Sanitation ◽

Ecological Zones ◽

Quality Of Water ◽

Health Organization

In this study, we aimed to assess the geographic inequalities in access to improved water and sanitation facilities among Nepalese households. We conducted this study based on cross-sectional data obtained from Nepal Demographic and Health Surveys. The quality of water sources and sanitation were defined by World Health Organization (WHO) guidelines. The geographic categories used in the analyses included developmental region, ecological zone, and urbanicity. Percentages of households having access to improved toilet (5.6% in 1996 vs. 40.5% in 2016) and water (19.3% in 1996 vs. 27% in 2016) facilities has been increasing steadily since 1996 with a great proportion of the households still lacking access to these services. The number of households sharing the same toilet and traveling time to reach water sources have also decreased at the same time. Households in Far Western and Mountains had the lowest odds of having access to improved toilet and water facilities. Noticeable progress has been achieved in improving WASH (water, sanitation, and hygiene) coverage at national level, however, it is uneven across developmental and ecological zones. Households in the Far Western and Mountain regions appeared to be the most geographically disadvantaged in terms of having access to improved water and sanitation facilities.

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