Trophic status of Vondo and Albasini Dams; impacts on aquatic ecosystems and drinking water

Odiyo, John O.; Chimuka, Luke; Mamali, M. A.; Fatoki, Olalekan S

doi:10.1007/s13762-012-0034-x

Cited by 16 publications

(8 citation statements)

References 8 publications

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“…The EC determined is in the same range in both seasons and statistical analysis of the data obtained for both seasons showed no significant difference ( p > 0.05). The value of EC usually gives an indication of the presence of dissolved ions in water [ 24 ] and the presence of these ions can alter the taste of water and also contribute to the hardness of water. It also gives an indication of the total dissolved solids present in the water.…”

Section: Resultsmentioning

confidence: 99%

Temporal Variations in Physico-Chemical and Microbiological Characteristics of Mvudi River, South Africa

Edokpayi

Odiyo

Msagati

et al. 2015

IJERPH

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Surface water has been a source of domestic water due to shortage of potable water in most rural areas. This study was carried out to evaluate the level of contamination of Mvudi River in South Africa by measuring turbidity, electrical conductivity (EC), pH, concentrations of nitrate, fluoride, chloride, and sulphate. E. coli and Enterococci were analysed using membrane filtration technique. Average pH, EC and Turbidity values were in the range of 7.2–7.7, 10.5–16.1 mS/m and 1.3–437.5 NTU, respectively. The mean concentrations of fluoride, chloride, nitrate and sulphate for both the wet and the dry seasons were 0.11 mg/L and 0.27 mg/L, 9.35 mg/L and 14.82 mg/L, 3.25 mg/L and 6.87 mg/L, 3.24 mg/L and 0.70 mg/L, respectively. E. coli and Enterococci counts for both the wet and the dry seasons were 4.81 × 103 (log = 3.68) and 5.22 × 103 (log = 3.72), 3.4 × 103 (log = 3.53) and 1.22 × 103 (log = 3.09), per 100 mL of water, respectively. The count of E. coli for both seasons did not vary significantly (p > 0.05) but Enterococci count varied significantly (p < 0.001). All the physico-chemical parameters obtained were within the recommended guidelines of the Department of Water Affairs and Forestry of South Africa and the World Health Organization for domestic and recreational water use for both seasons except turbidity and nitrates. The microbiological parameters exceeded the established guidelines. Mvudi River is contaminated with faecal organisms and should not be used for domestic purposes without proper treatment so as to mitigate the threat it poses to public health.

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Section: Resultsmentioning

confidence: 99%

Temporal Variations in Physico-Chemical and Microbiological Characteristics of Mvudi River, South Africa

Edokpayi

Odiyo

Msagati

et al. 2015

IJERPH

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“…It joins the Limpopo River 33 km east of Musina. The river catchment area is 2, 436 km 2 and have an average annual precipitation and evaporation of 422 mm and 2160 mm, respectively [ 23 ]. The region is semi-arid with seasonal rainfall events.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Microbiological and Physicochemical Parameters of Alternative Source of Drinking Water: A Case Study of Nzhelele River, South Africa

Edokpayi¹,

Odiyo²,

Popoola³

et al. 2018

TOMICROJ

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Background:Access to clean and safe drinking water is still a problem in developing countries and more pronounced in rural areas. Due to erratic supply of potable, rural dwellers often seek for an alternative source of water to meet their basic water needs. The objective of this study is to monitor the microbiological and physicochemical water quality parameters of Nzhelele River which is a major alternative source of drinking water to villages along its course in Limpopo province of South Africa.Methods:Membrane filtration method was employed in evaluating the levels of E. coli and Enterococci in the river water from January-June, 2014. Specialized multimeter was used to measure the pH, electrical conductivity and turbidity of the river water. Ion Chromatograph was used to measure major anions such as fluoride, chloride, nitrate and sulphate in the water.Results:High levels of E. coli (1 x 102 - 8 x 104 cfu/100 mL) and enterococci (1 x 102 – 5.7 x 103 cfu/100 mL) were found in the river water and exceeded their permissible limits of 0 cfu/100 mL for drinking water. Turbidity values ranged from 1.12-739.9 NTU. The pH, electrical conductivity, chloride, fluoride, nitrate and sulphate levels were below their permissible limits for drinking water.Conclusion:The river water is contaminated with faecal organisms and is unfit for drinking purposes. However, the levels of the major anions accessed were within the permissible limits of drinking water.

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“…River Nzhelele catchment covers an area of 2436 km 2 . The tributaries for River Nzhelele are Mutamba, Tshiruru, Mufungudi, Mutshedzi and Wyllie [ 67 ]. River Nzhelele is a major tributary of Limpopo River, a major water course in South Africa on coordinates 22°22′08″ S and 30°22′19″ E. It is a major alternative source of drinking water to villages along its course in Limpopo province of South Africa.…”

Section: Iwrm In the Context Of South Africa’s Community Participamentioning

confidence: 99%

Ecological Public Health and Participatory Planning and Assessment Dilemmas: The Case of Water Resources Management

Volenzo

Odiyo

2018

IJERPH

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Water is a key driver for socio-economic development, livelihoods and ecosystem integrity. This is reflected in the emergence of unified paradigms such as Integrated Water Resource Management (IWRM) and the weight accorded to it in the Sustainable Development Goals agenda. This paper interrogated the effectiveness of existing participatory planning and assessment models adapted from IWRM model on water quality and public health at community level. The analysis was built around public health ecology perspective and drew useful lessons from critique of basin wide integrated Modeling approaches and existing community participatory models envisaged under Water Users Associations (WUA) in South Africa. We extended the use of political ecology lenses to ecological public health through use of communication for development approaches, to argue that public health risk reduction and resilience building in community water projects require the use of innovative analytical and conceptual lenses that unbundle cognitive biases and failures, as well as, integrate and transform individual and collective agency. The study concludes that the inherent “passive participation” adapted from IWRM model fail to adequately address water quality and public health dimensions in its pillars. Since water quality has direct bearing on disaster risks in public health, building a coherent mitigatory vision requires the adoption of active participatory assessment and planning models that incorporate livelihoods, agency, social learning dynamics and resilience through recognition of communication for development approaches in community empowerment.

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Trophic status of Vondo and Albasini Dams; impacts on aquatic ecosystems and drinking water

Cited by 16 publications

References 8 publications

Temporal Variations in Physico-Chemical and Microbiological Characteristics of Mvudi River, South Africa

Temporal Variations in Physico-Chemical and Microbiological Characteristics of Mvudi River, South Africa

Evaluation of Microbiological and Physicochemical Parameters of Alternative Source of Drinking Water: A Case Study of Nzhelele River, South Africa

Ecological Public Health and Participatory Planning and Assessment Dilemmas: The Case of Water Resources Management

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