Limnological Assessment of Verkhne Viiskii Reservoir, Russian Federation

Kennedy, Robert H.; Hains, John J.

doi:10.2134/jeq2002.2111

Cited by 3 publications

(1 citation statement)

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“…A seasonal trend in values was observed across the stations, with the lowest value found in dry months and the highest value during the wet months. These may suggest impacts of surface runoff transporting nutrients from the vegetation Hains (2002). reported that nitrate concentration in the wa-ter increases with…”

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Assessing the Water Quality of Akwa Ibom State North-West District, Nigeria, using Water Quality Indices and Palmer Pollution Index

Jonah

Archibong

2022

Ekológia (Bratislava)

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Freshwater bodies of Akwa Ibom State North-West District, Nigeria, were studied between May and December 2021 at seven sampling stations based on human activities. The indices used were water quality index (WQI) for drinking water purpose, comprehensive pollution index (CPI) for aquatic life sustainability, and Palmer pollution index (PPI) for organic pollution. Thirteen physicochemical parameters were scrutinized using standard methods and compared with the World Health Organization (WHO) standards. All the physicochemical parameters evaluated were within the acceptable limits, except pH, biochemical oxygen demand (BOD), dissolved oxygen (DO), and nitrate in some stations. The phytoplankton identified comprised13 genera of pollution indicators out of 41 genera of the total population, among which Bacillariophyceae accounted for 46.55%. The WQI values ranged between 38.86 and 54.63 based on weighted arithmetic method. The CPI values ranged from 0.35 to 0.46, while the PPI score ranged between 1 and 23. The values of WQI and CPI obtained in stations I, III, and IV revealed poor water quality which was unfit for human consumption and sustenance of aquatic life. The obtained value for PPI revealed that stations I, III, IV, VI, and VII were organically polluted. The occurrence of pollution indicator genera in these stations further proved that the water bodies were moderately polluted owing to anthropogenic perturbation. The activities of humans within the watershed should be of concern to the relevant authorities; regulation of these activities should be enforced to minimize the situation of water deterioration and for regaining the natural water quality to support aquatic life and health and make it fit for domestic usage.

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confidence: 99%

Assessing the Water Quality of Akwa Ibom State North-West District, Nigeria, using Water Quality Indices and Palmer Pollution Index

Jonah

Archibong

2022

Ekológia (Bratislava)

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Haptic Devices and Interfaces

Repperger

Phillips

2006

Wiley Encyclopedia of Biomedical Engineering

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The sense of touch (somatic or haptic) involving force‐reflecting devices acting on, or in conjunction with, human movement, provides a powerful paradigm to assist individuals in shaping their biodynamic actions in specific tasks or scenarios. Haptics can behave as both a sensor (force display) or an actuator (controller) with much research accomplished in both areas. First a survey on current biomedical and rehabilitation applications is provided. A specific biomedical example is then presented that deals with modulating control motions made by physically challenged individuals that enabled more voluntary control. Finally, the future applicability of haptics or force reflecting technology is given.

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An assessment of the physico-chemical parameters of Kontagora reservoir, Niger state, Nigeria

Ibrahim¹,

Auta²,

Balogun³

2010

Bayero J. Pure App. Sci.

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The seasonal variations in the physicochemical parameters of water reservoir in Kontagora, Nigeria were studied from January to December, 2007. The physico-chemical parameters were determined bimonthly. They include: temperature (using mercury in glass thermometer), transparency (using Secchi-disc), while Pye Unicam model 292 meter was used for pH and electrical conductivity determination. Dissolved oxygen by modified Winkler-azide method, water hardness by Lind method and Phosphate-phosphorus by Denges method, total alkalinity by titration method, total dissolved solid by O'wen method, while Nitrate-Nitrogen was determined using Phenoldisulphonic acid method. Water depth was determined using a calibrated measuring tape weighted at one end. The rainy season mean values for water temperature, depth, pH, Nitrate-Nitrogen, were significantly (P<0.05) higher than those for the dry season. However, for transparency, conductivity, dissolved oxygen, hardness, alkalinity, phosphate-phosphorus and total dissolved solid, the dry season mean value were significantly higher than the rainy season mean value. As in most other African inland water bodies, there was seasonal variation in the physicochemical parameters evaluated in this study. The torrential rains of the reservoir environment, the characteristic trade winds of the dry season, effect of deforestation, fertilizer application, herbicides, insecticide and other chemical factors might have contributed to the fluctuations of some of the physicochemical parameters determined in the reservoir.

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Limnological Assessment of Verkhne Viiskii Reservoir, Russian Federation

Cited by 3 publications

References 12 publications

Assessing the Water Quality of Akwa Ibom State North-West District, Nigeria, using Water Quality Indices and Palmer Pollution Index

Assessing the Water Quality of Akwa Ibom State North-West District, Nigeria, using Water Quality Indices and Palmer Pollution Index

Haptic Devices and Interfaces

An assessment of the physico-chemical parameters of Kontagora reservoir, Niger state, Nigeria

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