Journal articles on the topic 'Water Pollution Victoria'

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1

Egessa, Robert, Angela Nankabirwa, Henry Ocaya, and Willy Gandhi Pabire. "Microplastic pollution in surface water of Lake Victoria." Science of The Total Environment 741 (November 2020): 140201. http://dx.doi.org/10.1016/j.scitotenv.2020.140201.

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2

William, Alex. "Assessment of Urbanization Implications in Water Management around Lake Victoria: Case Study Mwanza." Journal of Water Resources, Engineering, Management and Policy 1, no. 1 (December 28, 2022): 1–13. http://dx.doi.org/10.56542/mow.jwempo.1.1.2.

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This study assesses urbanization implications in water management around Lake Victoria in Mwanza. The study was conducted in Nyamagana and Misungwi districts by the use of data collected from April 2020 to June 2021. A total of 200 respondents participated in this study. The findings showed that, urbanization which is associated with various socio-economic activities caused destruction and pollution of water sources and the general ecosystem around Lake Victoria ecosystem. It concluded that, there was a direct relationship between urbanizations, pollution and degradation of the physical environment around Lake Victoria. The study recommended that land use plan and management must be applied to mobilize, facilitate and motivate local community based groups for participatory waste and overall water and land resources management around Lake Victoria basin
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3

Swamikannu, X., D. Radulescu, R. Young, and R. Allison. "A comparative analysis: storm water pollution policy in California, USA and Victoria, Australia." Water Science and Technology 47, no. 7-8 (April 1, 2003): 311–17. http://dx.doi.org/10.2166/wst.2003.0704.

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Urban drainage systems historically were developed on principles of hydraulic capacity for the transport of storm water to reduce the risk of flooding. However, with urbanization the percent of impervious surfaces increases dramatically resulting in increased flood volumes, peak discharge rates, velocities and duration, and a significant increase in pollutant loads. Storm water and urban runoff are the leading causes of the impairment of receiving waters and their beneficial uses in Australia and the United States today. Strict environmental and technology controls on wastewater treatment facilities and industry for more than three decades have ensured that these sources are less significant today as the cause of impairment of receiving waters. This paper compares the approach undertaken by the Environmental Protection Authority Victoria for the Melbourne metropolitan area with the approach implemented by the California Environmental Protection Agency for the Los Angeles area to control storm water pollution. Both these communities are largely similar in population size and the extent of urbanization. The authors present an analysis of the different approaches contrasting Australia with the USA, comment on their comparative success, and discuss the relevance of the two experiences for developed and developing nations in the context of environmental policy making to control storm water and urban runoff pollution.
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4

Dalahmeh, Sahar, Emma Björnberg, Anna-Klara Elenström, Charles B. Niwagaba, and Allan John Komakech. "Pharmaceutical pollution of water resources in Nakivubo wetlands and Lake Victoria, Kampala, Uganda." Science of The Total Environment 710 (March 2020): 136347. http://dx.doi.org/10.1016/j.scitotenv.2019.136347.

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5

Banadda, E. N., F. Kansiime, M. Kigobe, M. Kizza, and I. Nhapi. "Landuse-based nonpoint source pollution: a threat to water quality in Murchison Bay, Uganda." Water Policy 11, S1 (March 1, 2009): 94–105. http://dx.doi.org/10.2166/wp.2009.106.

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Murchison Bay in Lake Victoria is the main water source for Kampala City (Uganda) but is also the recipient for the wastewater discharged from the city. The objective of this paper is to trace the main landuse-based pollution sources within Kampala City borders and around Murchison Bay as a means to develop methods and systems to protect and preserve the aquatic environment and, from the lessons learned, to highlight what is considered to be an appropriate and sustainable approach for Uganda. This paper shows that Uganda needs to set realistic local standards, offer affordable services, set time frameworks, streamline politics, nurture and develop institutions, divide institutional responsibilities, educate her people and learn from the success stories to reverse the negative impacts on the water quality in Murchison Bay.
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6

Mulanda Aura, Christopher, Chrisphine S. Nyamweya, James M. Njiru, Reuben Omondi, Julius Manyala, Safina Musa, Horace Owiti, et al. "Using the Multi-metric Index of Biotic Integrity methodological approach to determine the major river catchment that most pollutes a lake." Aquatic Ecosystem Health & Management 24, no. 1 (January 2, 2021): 12–20. http://dx.doi.org/10.14321/aehm.024.01.04.

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Abstract We present the Multi-metric Index of Biotic Integrity methodological approach that allows for the ranking of major river catchments based on pollution status in the Kenyan portion of Lake Victoria, Africa. The study has a broader applicability to all of Lake Victoria, other African Great Lakes, and all lakes that have riverine discharge. The method presented utilizes water quality and environmental data, local knowledge, and pre-existing literature. The parameters considered were sampled from 2016 to 2018 during the dry season (July sampling) and the wet season (March sampling). Separation power of Mann-Whitney U test (p < 0.05) qualified 11 discriminant metrics for both macroinvertebrate and fish samples into the scoring system of 1, 3 and 5 in the formulation of final Multi-metric Index of Biotic Integrity methodological approach. Rivers in the northern section had lower Multi-metric Index of Biotic Integrity methodological approach scores, as compared to southern counterparts. The Multi-metric Index of Biotic Integrity methodological approach ranking herein was validated by community perceptions on pollution levels. River Nzoia catchment emerged as the most polluted, followed by River Yala, River Kuja, and Sondu-Miriu. Siltation, domestic washing, litter and refuse emerged as the main agents of pollution. Management authorities ought to reinforce a balanced utilization of the vital water resources to minimize future impacts, and promote catchment wide practices that ensure ecological health sustainability of the lake ecosystem.
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7

Bhanuprakash, M., and S. L. Belagali. "Study of Adsorption Phenomena by Using Almond Husk for Removal of Aqueous Dyes." Current World Environment 12, no. 1 (April 25, 2017): 80–88. http://dx.doi.org/10.12944/cwe.12.1.10.

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Among air and soil, water pollution is considered as an important one. Deterioration of water resources by the addition of various pollutants leads to the major threat to water quality and use of water for domestic purpose which leads to unaesthetic. For the plants, animals and human beings dyes are considered as most hazardous among various water pollutants. The present paper describes the adsorption behaviour of adsorbent almond husk with respect to dyes of Crystal violet, Bromocresol green, Pararosaniline and Victoria blue was investigated. The batch method was used and parameters like pH, adsorbent dosage, contact time and initial and final concentration of dyes were studied. Adsorbent used to be effective, with total removal of all dyes of 90%, with higher percentage removal from bromocresol green 97.5%, Crystal violet 96.9%, Pararosaniline 95.6% and Victoria blue 95%. Almond husk was an effective adsorbent with maximum percentage removal of 97.5% bromocresol green. Adsorbent was analysed by the instrument of scanning electron microscopy and Fourier infrared spectroscopy. In the present study almond husk almond husk was studied as a very good adsorbent for the removal of dyes from the aqueous media. Isotherm model of Langmuir, Freundlich and Dubinin-Radushkevich were considered to be favourable.
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8

Oguttu, HanningtonW, Fred WB Bugenyi, Heinz Leuenberger, Markus Wolf, and Reinhard Bachofen. "Pollution menacing Lake Victoria: Quantification of point sources around Jinja Town, Uganda." Water SA 34, no. 1 (December 11, 2018): 89. http://dx.doi.org/10.4314/wsa.v34i1.180865.

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9

Ford, John R., and Paul Hamer. "The forgotten shellfish reefs of coastal Victoria: documenting the loss of a marine ecosystem over 200 years since European settlement." Proceedings of the Royal Society of Victoria 128, no. 1 (2016): 87. http://dx.doi.org/10.1071/rs16008.

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Victoria has lost vast areas (>95%) of native flat oyster (Ostrea angasi, Sowerby 1871) and blue mussel (Mytilus edulis galloprovinicialis, Lamarck 1819) reefs from estuarine and coastal waters since European settlement. We document the decline of these reefs by examining indigenous use of shellfish, the decimation of oyster reefs by dredge fishing in early colonial days (1840s–1860s) and later removal of mussel reefs by the mussel and scallop dredging industry (1960s‒1990s). Review of current scientific information reveals no notable areas of continuous oyster reef in Victoria and we consider this habitat to be functionally extinct. While the large-scale removal and destructive fishing practices that drove the rapid declines have not occurred since the mid-1990s, a natural recovery has not occurred. Recovery has likely been hampered historically by a host of factors, including water quality and sedimentation, lack of shell substrate for settlement, chemical pollution impacts, disease of native flat oysters (Bonamia), and more recently introduced species that compete with or prey on shellfish. However, research in the United States has demonstrated that, by strategic selection of appropriate sites and provision of suitable settlement substrates, outplanting of aquaculture-reared oysters and mussels can re-establish shellfish reefs. While a long-term sustained and structured approach is required, there is potential to re-establish shellfish reefs as a functioning ecological community in Victoria’s coastal environment.
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10

Orata, Francis, Natalia Quinete, Friedrich Werres, and Rolf-Dieter Wilken. "Determination of Perfluorooctanoic Acid and Perfluorooctane Sulfonate in Lake Victoria Gulf Water." Bulletin of Environmental Contamination and Toxicology 82, no. 2 (September 13, 2008): 218–22. http://dx.doi.org/10.1007/s00128-008-9543-1.

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11

Baguma, Gabson, Andrew Musasizi, Hannington Twinomuhwezi, Allan Gonzaga, Caroline K. Nakiguli, Patrick Onen, Christopher Angiro, et al. "Heavy Metal Contamination of Sediments from an Exoreic African Great Lakes’ Shores (Port Bell, Lake Victoria), Uganda." Pollutants 2, no. 4 (September 27, 2022): 407–21. http://dx.doi.org/10.3390/pollutants2040027.

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Lake Victoria (L. Victoria) is the largest African tropical and freshwater lake, with one of the highest pollution levels, globally. It is shared among Uganda, Kenya and Tanzania, but it is drained only by the river Nile, the longest river in Africa. Though environmental studies have been conducted in the lake, investigations of the heavy metals (HMs) contamination of sediments from fish landing sites and ports on the Ugandan portion of L. Victoria are limited. In this study, sediments of an urban, industrial and fish landing site (Port Bell) on L. Victoria, Uganda was investigated to establish its HMs pollution levels and potential health risks to humans and ecosystems. Sediment samples were collected in triplicate (n = 9) from three different points of Port Bell, digested and analyzed using atomic absorption spectrometry for the presence of these HMs: copper (Cu), lead (Pb), cadmium (Cd) and chromium (Cr). The average daily dose through dermal contact and hazard quotient (HQ) were calculated to assess the health risk that is associated with dredging works (lake sand mining). Four geochemical enrichment indices: contamination factor (CF), geo-accumulation index (Igeo), pollution load index (PLI) and potential ecological risk (PERI) were used to quantify the contamination of the HMs in the sediments. The results showed that the mean HM content of the samples ranged from: 6.111 ± 0.01 to 7.111 ± 0.002 mg/kg for Cu; from 40.222 ± 0.003 to 44.212 ± 0.002 mg/kg for Pb; from 0.352 ± 0.007 to 0.522 ± 0.010 mg/kg for Cr; from 3.002 ± 0.002 to 3.453 ± 0.003 mg/kg for Cd. Health risk assessments indicated that there are no discernible non-carcinogenic health risks that could arise from the dredging works that are conducted in the study area as the indices were all below one. The contamination factors that were obtained suggest that Cd has reached a state of severe enrichment in the sediments (CF > 6). An assessment using Igeo established that the sediments were not contaminated with regards to Cu and Cr, but they exhibited low-to-median and median contamination with respect to Pb and Cd, respectively. Though the pollution load indices show that the contamination levels raise no serious concerns, the potential ecological risk indices show that there is considerable pollution of the Port Bell sediments, particularly with regard to Cd. Upon examination using multivariate statistical analyses, Cd and Cr showed a strong correlation which alluded to their introduction from anthropogenic sources. Based on the sedimentary HMs concentrations and the environmental indices that are employed in this study, it is recommended that the spatial variations in the concentrations of the HMs in water, sediments and biota should be monitored.
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12

Ouedraogo, Issoufou, Arthur Girard, Marnik Vanclooster, and François Jonard. "Modelling the Temporal Dynamics of Groundwater Pollution Risks at the African Scale." Water 12, no. 5 (May 15, 2020): 1406. http://dx.doi.org/10.3390/w12051406.

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Groundwater pollution risk modelling is an important asset to improve groundwater management and protection. In this study, we assess the temporal dynamics of groundwater pollution risk at the continental scale, using the DRASTIC model. The approach was developed using continental-scale data on soil properties, topography, land use, geology, hydrogeology, and climate with a resolution of 15 × 15 km2. We compared continental-scale groundwater pollution risk for the years 1990, 2000, and 2010. The results showed significant inter-annual variations of the spatial distribution of pollution risk. Changes were mainly concentrated in the area of the Nile Delta, around the Lake Victoria, in North Africa, and in coastal West Africa (predominately in Nigeria). We found that the increase in pollution risk was mainly related to the increase in the population density in these regions. The proposed methodology for modelling the temporal dynamics of groundwater pollution risk could support the monitoring of the Sustainable Development Goal 6, which focus in particular on the preservation of the freshwater resources against future threats.
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13

Gichuki, John, Reuben Omondi, Priscillar Boera, Tom Okorut, Ally Said Matano, Tsuma Jembe, and Ayub Ofulla. "Water HyacinthEichhornia crassipes(Mart.) Solms-Laubach Dynamics and Succession in the Nyanza Gulf of Lake Victoria (East Africa): Implications for Water Quality and Biodiversity Conservation." Scientific World Journal 2012 (2012): 1–10. http://dx.doi.org/10.1100/2012/106429.

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This study, conducted in Nyanza Gulf of Lake Victoria, assessed ecological succession and dynamic status of water hyacinth. Results show that water hyacinth is the genesis of macrophyte succession. On establishment, water hyacinth mats are first invaded by native emergent macrophytes,Ipomoea aquaticaForsk., andEnydra fluctuansLour., during early stages of succession. This is followed by hippo grassVossia cuspidata(Roxb.) Griff. in mid- and late stages whose population peaks during climax stages of succession with concomitant decrease in water hyacinth biomass. Hippo grass depends on water hyacinth for buoyancy, anchorage, and nutrients. The study concludes that macrophyte succession alters aquatic biodiversity and that, since water hyacinth infestation and attendant succession are a symptom of broader watershed management and pollution problems, aquatic macrophyte control should include reduction of nutrient loads and implementing multifaceted approach that incorporates biological agents, mechanical/manual control with utilization of harvested weed for cottage industry by local communities.
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14

Khoury, N. S., E. J. Holcomb, J. W. White, and M. Rand. "GROWTH OF MULCHED GERANIUMS USING RECYCLED TOP- AND SUB-IRRIGATION." HortScience 27, no. 6 (June 1992): 582e—582. http://dx.doi.org/10.21273/hortsci.27.6.582e.

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Recycled subirrigation systems are a possible solution to grower concerns over water use, ground water pollution, and regulations concerning these. The objectives of this experiment were to examine the differences between top- and subirrigated plants, with different fertilizer regimes and with mulches. Six treatments of `Crimson Fire' and `Victoria' CVI geraniums were grown in 11 cm. pots. Treatments were: top irrigation, 100% N supplied with 20-10-20 soluble fertilizer; subirrigation, 100% N supplied with 20-10-20 soluble fertilizer; subirrigation, N supplied in equal portions of 20-10-20 soluble fertilizer and CRF, gel mulch; subirrigation, N supplied with CRF, gel mulch; subirrigation, N supplied in equal portions of 20-10-20 soluble fertilizer and CRF, wool mulch; subirrigation, all N supplied with CRF, wool mulch. `Crimson Fire': fresh weight was not significantly different between top- and subirrigation; fresh weight at the same fertilizer level was not significantly different with either a gel or a rockwool mulch; all CRF resulted in the lowest fresh weights. `Victoria': top irrigated fresh weight was significantly higher compared to subirrigated. Gel mulched plants resulted in significantly lower fresh weights than wool mulched plants. All CRF resulted in the lowest fresh weights.
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15

Scheren, P. A. G. M., H. A. Zanting, and A. M. C. Lemmens. "Estimation of water pollution sources in Lake Victoria, East Africa: Application and elaboration of the rapid assessment methodology." Journal of Environmental Management 58, no. 4 (April 2000): 235–48. http://dx.doi.org/10.1006/jema.2000.0322.

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16

Kasozi, G. N., B. T. Kiremire, F. W. B. Bugenyi, N. H. Kirsch, and P. Nkedi-Kizza. "Organochlorine Residues in Fish and Water Samples from Lake Victoria, Uganda." Journal of Environmental Quality 35, no. 2 (March 2006): 584–89. http://dx.doi.org/10.2134/jeq2005.0222.

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17

Leeming, R., N. Bate, R. Hewlett, and P. D. Nichols. "Discriminating faecal pollution: a case study of stormwater entering Port Phillip Bay, Australia." Water Science and Technology 38, no. 10 (November 1, 1998): 15–22. http://dx.doi.org/10.2166/wst.1998.0369.

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This investigation was designed to provide preliminary information to the Environment Protection Authority concerning the input of faecal matter to stormwater drains in the Rippleside area of Geelong, Victoria. Results derived from the combined use of sterol biomarkers (e.g. coprostanol and 24-ethylcoprostanol) and four sub-groups of bacterial indicators (e.g. thermotolerant coliforms, E. coli, faecal streptococci and enterococci) indicated that during wet weather, all sites sampled were affected by significant human faecal contamination. Ratios of coprostanol to bacterial indicators were similar to those for samples collected from nearby sewer mains. During dry weather, there were still severely elevated levels of faecal contamination based on bacterial indicators, but correspondingly low concentrations of faecal sterols suggesting minimal human or herbivore faecal contamination. The origin of the majority of the faecal pollution in dry weather therefore remains to be fully explained. It is clear from this and related studies that the combined measurement of faecal sterols and bacterial indicators can greatly assist distinguishing sources of faecal pollution. It is also shown for aquatic environments that the measurement of coprostanol or other single indicators alone, is inadequate to fully discern faecal contamination from human sources.
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18

Makaka, R. R., Shepherd Misi, Mhosisi Masocha, and Richard Kimwaga. "Spatial and Temporal Variation of Selected Water Quality Parameters in the Tanzanian Side of Lake Victoria." Tanzania Journal of Engineering and Technology 40, no. 2 (February 20, 2022): 1–23. http://dx.doi.org/10.52339/tjet.v40i2.729.

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Lake Victoria’s water quality is increasingly becoming under heavy pressure mainly due to land based activities and aerial inputs which are taking place within the basin. This study was carried out to assess the spatial, including vertical and temporal, variation of the water quality of Lake Victoria on the Tanzanian side. Historical water quality data for the period from 2000 to 2016 was collected. Temperature, pH, Dissolved Oxygen (DO) and Turbidity were selected for study since they are the mostly measured and monitored water quality parameters. Land use-land cover changes were analysed using ArcGIS. ILWIS 3.7 software was used to classify the land use and land cover for the years 2000, 2010 and 2014. MERIS was used to analyse the spatial variation. One-way ANOVA was employed to test the significant variation between different parameters. The results showed that, for the pelagic zone, the range of temperature, pH, DO, and turbidity were 22.8 oC-28.68 oC, 6.3-10.52, 3.42-10.21 mg/l, 1.0 NTU-15.8 NTU respectively. The corresponding values for the littoral zones were 22.3 oC-26.8 oC, 6.47-10.16, 3.99-8.6 mg/l, 1.3-347 NTU respectively. The ANOVA analysis results show that there was a significant variation of NO3(p<0.01). Temperature, pH and DO decreased with the lake depth to the bottom for both zones. For the littoral zone, a strong correlation was observed between temperature and depth, temperature and DO, and between temperature and pH with R2=0.6, p<0.03, R2=-0.78, p<0.01 and R2=0.96, p<0.01, respectively. The bare soil, urban settlements and farm land increased by 38.9%, 8.4% and 10.7% respectively from the year 2000 to 2014 on the Tanzanian side. This could have led to water quality changes. Water quality parameters varied significantly between pelagic and littoral zones. Littoral zones are mostly polluted and thus should be the priority pollution control intervention areas.
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Lin, Yi, Xin Li, Tinghui Zhang, Nengfang Chao, Jie Yu, Jianqing Cai, and Nico Sneeuw. "Water Volume Variations Estimation and Analysis Using Multisource Satellite Data: A Case Study of Lake Victoria." Remote Sensing 12, no. 18 (September 18, 2020): 3052. http://dx.doi.org/10.3390/rs12183052.

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The spatiotemporal changes of lake water resources objectively reflect not only the process of the water resources balance, but also the ecological environment changes in the lake area. In recent decades, climate changes and human activities have caused great impacts on the spatial distribution of the earth’s water resources and the spatiotemporal process of the surface water cycle, which has caused a series of ecological crises and environmental problems, such as the drying-up of inland lakes, the disappearance of the oasis, water shortage or flooding and water pollution. Therefore, monitoring and fully understanding the dynamic changes of lakes is of great scientific significance for grasping regional water balance, water resources management, and sustainable development of the ecological environment. In this study, we focus on using multi-source satellite data on the estimation of water volume and multi-timescale variations analysis for large scale lakes. This study combines the problems in the practical application of “African Water Action”, taking the largest lake in Africa, Lake Victoria, as the study area, and utilizes long-term serial multi-source satellite data of the past 15 years (2003–2017), including Moderate-resolution Imaging Spectroradiometer (MODIS), Jason-1/-2/-3 and Gravity Recovery and Climate Experiment (GRACE) to perform the comprehensive analysis on the water volume change estimation. Firstly, the satellite altimetry data of Jason-1/-2/-3 and MODIS imagery was used to calculate series of water level, and to extract series of water surface area, respectively. On this basis, a more accurate regression model between the area and water level variation (ΔH) was constructed. Then, the model between water volume variation (ΔV) and ΔH, derived from area-ΔH model, was applied to calculate the relative water volume of Lake Victoria. Meanwhile, terrestrial water storage (TWS) changes between 2003 and 2016, derived from GRACE data, were also used for a comparative verification of the ΔV results. The results show the long-term series change trends of ΔV and the TWS are the same. Finally, the multi-timescale analysis of water volume changes was carried out on different time scales, such as the inter-annual, inter-monthly, and variation period.
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Jeong, Sanghyun, Tien Vinh Nguyen, Saravanamuthu Vigneswaran, Jaya Kandasamy, and Dharma Dharmabalan. "Removal of natural organic matter at the Gunbower water treatment plant in northern Victoria, Australia." Desalination and Water Treatment 57, no. 20 (April 2, 2015): 9061–69. http://dx.doi.org/10.1080/19443994.2015.1029006.

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Kanda, Edwin K., Job R. Kosgei, and Emmanuel C. Kipkorir. "Simulation of organic carbon loading using MIKE 11 model: a case of River Nzoia, Kenya." Water Practice and Technology 10, no. 2 (June 1, 2015): 298–304. http://dx.doi.org/10.2166/wpt.2015.035.

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River Nzoia is the largest river draining into the Kenyan portion of Lake Victoria. This river receives both point sources of pollution from industrial and municipal wastes, and non-point sources from agricultural runoff in the catchment. The objective of this study was to simulate dissolved oxygen (DO) and biochemical oxygen demand (BOD) of the middle section of River Nzoia using MIKE 11 model. The model was calibrated using discharge and water quality data for 2009 and validated with March–April 2013 data. The model performance was good with coefficient of determination (R2) values of between 0.845 and 0.995, Nash–Sutcliffe efficiency values of between 0.748 and 0.993 and percent bias of less than 10 for both calibration and validation of electrical conductivity (EC), DO and BOD. EC and BOD values were lower for April compared to March which could be attributed to dilution during high flows. DO values were above the recommended minimum level of 4 mg/l in all the sections of the river in the wet period but some sections had lower than 4 mg/l during low flow period. The government agencies such as Water Resources Management Authority and National Environment Management Authority should enforce the effluent standards to ensure that industries and wastewater treatment plants adhere to the maximum allowable limit for BOD and also improve their treatment efficiencies of wastewater plants so as to improve the quality of River Nzoia which is important in the overall management of the Lake Victoria basin.
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Nuttall, P. M., B. J. Richardson, and P. Condina. "Effects of Saline Flushing to a Polluted Estuary to Enhance Water Quality Standards." Water Science and Technology 21, no. 2 (February 1, 1989): 167–76. http://dx.doi.org/10.2166/wst.1989.0045.

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Kananook Creek, a polluted estuary in urban Victoria,was monitored for water quality data over a seven year period. Prior to saline flushing, low species diversity dominated by high numbers of organic pollution-tolerant macroinvertebrates, phytoplankton blooms and cyanobacterial mats occurred throughout the estuary in clearly defined zones. Low dissolved oxygen levels restricted fish movement. Sand and silt deposition in the estuary prevented submergent aquatic plant colonisation, primarily as a result of the unstable, shifting nature of the substratum. Subsequent saline flushing at a maximum continuous rate of 150 ML/day saltwater from a coastal waterway improved quality within the water column of the polluted estuary. Although flushing reduced the incidence of fresh-water species, estuarine fauna and flora rapidly colonised much of Kananook Creek. The incidence of phytoplankton blooms, water discolouration and odour was reduced to the benefit of recreation demands placed upon the creek. Polluted and unstable sediments continued to restrict macroinvertebrate establishment and occasional cessation in flushing for pump maintenance caused a rapid deterioration in water quality.
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Nan, Bingxu, Lei Su, Claudette Kellar, Nicholas J. Craig, Michael J. Keough, and Vincent Pettigrove. "Identification of microplastics in surface water and Australian freshwater shrimp Paratya australiensis in Victoria, Australia." Environmental Pollution 259 (April 2020): 113865. http://dx.doi.org/10.1016/j.envpol.2019.113865.

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24

Worthington, E. Barton. "The Lake Victoria Lates Saga." Environmental Conservation 16, no. 3 (1989): 266–67. http://dx.doi.org/10.1017/s0376892900009371.

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25

Juma, Dauglas Wafula, Hongtao Wang, and Fengting Li. "Impacts of population growth and economic development on water quality of a lake: case study of Lake Victoria Kenya water." Environmental Science and Pollution Research 21, no. 8 (January 18, 2014): 5737–46. http://dx.doi.org/10.1007/s11356-014-2524-5.

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26

Dalahmeh, Sahar, Emma Björnberg, Anna-Klara Elenström, Charles B. Niwagaba, and Allan John Komakech. "Corrigendum to “Pharmaceutical pollution of water resources in Nakivubo wetlands and Lake Victoria, Kampala, Uganda” [Sci. Total Environ. (2020) 136347]." Science of The Total Environment 748 (December 2020): 138544. http://dx.doi.org/10.1016/j.scitotenv.2020.138544.

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27

Simonit, Silvio, and Charles Perrings. "Indirect economic indicators in bio-economic fishery models: agricultural price indicators and fish stocks in Lake Victoria." ICES Journal of Marine Science 62, no. 3 (January 1, 2005): 483–92. http://dx.doi.org/10.1016/j.icesjms.2005.01.012.

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Abstract We consider the potential for using prices as leading indicators of changes in stocks and yields in the freshwater capture fishery in Lake Victoria. Fertilizer run-off from agricultural land is a major cause of nutrient loading, along with soil erosion, atmospheric deposition, and point pollution from industrial and domestic affluent. The interactions between fertilizer applications, water quality, fish stocks, and yields are modelled in order to predict the effect of changes in the price of fertilizers on the fishery. The fishery model includes a measure of Chl a concentration (a proxy for phytoplankton density). The consequences of changes in Chl a concentration for fish stocks are modelled using Ecopath. We show that fertilizer prices are effective leading indicators of changes in fish biomass and yield.
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I. Z., Mukasa-Tebandeke, Karume I., Wasajja H. Z., and Nankinga R. "Improving Quality of Water from Murchison bay Using Clay from Chelel, Kapchorwa District, Uganda." Academic Journal of Chemistry, no. 411 (November 10, 2019): 102–17. http://dx.doi.org/10.32861/ajc.411.102.117.

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Pollution resulting from increased human activities is threatening Lake Victoria, its effects are characterized by eutrophication, high turbidity, pH, iron(II) concentration and chemical oxygen demand (COD). In this study we have investigated the effect of Fe-montmorillonite clay from Chelel on turbidity, pH, concentration of iron, total suspended soils, total nutrients and COD of water sampled from Murchison bay watershed of Nakivubo channel south of Kampala. Varying amounts of clay powder was vigorously stirred with water samples for 5 minutes, filtered using Whatman paper at ambient temperatures. The optimum concentration of clay of 0.4 gL-1 was found to produce 73.5+2% fall in COD indicating elimination of microbes and organic waste. The pH of water became 6.3+ 0.2 showing that impurities had been bound to clay. The TSS and nutrients in MB water also decreased greatly when clay was stirred with water at ambient temperatures. The available data can be relied on to recommend use of this clay in treatment of waste water and/or sewage from Kampala. Further studies on combined use of clays with alums, zeolites and/or lime need to be carried out.
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Nicholson, S., Y. H. Hui, and P. K. S. Lam. "Pollution in the coastal waters of Hong Kong: case studies of the urban Victoria and Tolo Harbours." Water and Environment Journal 25, no. 3 (June 16, 2010): 387–99. http://dx.doi.org/10.1111/j.1747-6593.2010.00234.x.

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30

Nyangababo, J. T., L. Henry, and E. Omutange. "Organochlorine Pesticide Contamination in Surface Water, Sediment, and Air Precipitation of Lake Victoria Basin, East Africa." Bulletin of Environmental Contamination and Toxicology 75, no. 5 (November 2005): 960–67. http://dx.doi.org/10.1007/s00128-005-0843-4.

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31

Cooke, Alexander, and Huseyin Sumer. "Possible Transoceanic Rafting of Lepas Spp. on an Unopened Plastic Bottle of Chinese Origin Washed Ashore in Victoria, Australia." Asian Journal of Water, Environment and Pollution 18, no. 1 (January 25, 2021): 85–90. http://dx.doi.org/10.3233/ajw210011.

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Floating marine debris and litter act as a vector transporting various species across long distances. The present study reports possible transoceanic rafting of a small colony of barnacles on an unopened plastic bottle of Chinese origin found washed ashore on the Ninety Mile Beach in Victoria, Australia. The crustaceans attached were identified to be the goose barnacle Lepas pectinata. Based on the number and size of the colony the marine pollutant was estimated to adrift for several months. We hypothesised the origin of the flotsam, especially the barnacles and how it made its way from the Pacific to be washed ashore in Australia. Furthermore, we identified two types of microbes, Vibrio alginolyticus and Vibrio parahaemolyticus, associated with the Lepas pectinata growing on the bottle. This study appears to be the first report of possible transoceanic rafting on unused plastic pollutants and highlights the potential environmental threats caused by plastic.
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Opere, Wasonga Michael, Maingi John, and Omwoyo Ombori. "Occurrence of Enteric Viruses in Surface Water and the Relationship with Changes in Season and Physical Water Quality Dynamics." Advances in Virology 2020 (July 3, 2020): 1–11. http://dx.doi.org/10.1155/2020/9062041.

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Environmental water quality issues have dominated global discourse and studies over the past five decades. Significant parameters of environmental water quality include changes in biological and physical parameters. Some of the biological parameters of significance include occurrence of enteric viruses. Enteric viruses can affect both human and animal’s health by causing diseases such as gastrointestinal and respiratory infections. In this study, the relationship between the occurrence of enteric viruses with reference to adenoviruses and enteroviruses and the physical water quality characteristics was assessed from water samples collected from Lake Victoria (LV) in Kenya. In order to understand the dynamics of season driven enteric viruses’ contamination of the lake waters, we additionally analysed seasonal behavior of the lake’s catchment area in terms of rainfall effects. Physical quality parameters were measured on-site while viral analysis was carried out by molecular methods using the nested polymerase chain reaction (nPCR). From 216 samples that were analysed for viral contamination, enteric viral genomes were discovered in 18 (8.3%) of the samples. Out of half of the samples (108) collected during the rainy season, enteric viral genomes were detected in 9.26% (10) while 8 (7.41%) samples tested positive from the other half of the samples (108) collected during the dry season. There was, however, no significant correlation noted between the physical water quality characteristics and the enteric viruses’ occurrence. Neither wet season nor dry season was significantly associated with the prevalence of the viruses. In Lake Victoria waters, most of the samples had an average of physical water quality parameters that were within the range accepted by the World Health Organization (WHO) for surface waters with exemption of turbidity which was above the recommended 5 NTU as recorded from some sampling sites. Continuous and long-term surveillance of the lake water to accurately monitor the contaminants and possible correlation between chemical, physical, and biological characteristics is recommended. This would be important in continuous understanding of the hydrological characteristics changes of the lake for proper management of its quality with reference to the WHO standards. A multiple varied-sampling approach in different geographical regions during different seasons is recommended to establish the geographical distribution and relatedness to seasonal distribution patterns of the viruses. The data generated from this study will be useful in providing a basis for assessment of seasonally driven fecal pollution load of the lake and enteric virus contamination for proper management of the sanitary situation around the lake.
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McKenzie-Smith, F., D. Tiller, and D. Allen. "Organochlorine pesticide residues in water and sediments from the Ovens and King Rivers, North-East Victoria, Australia." Archives of Environmental Contamination and Toxicology 26, no. 4 (May 1994): 483–90. http://dx.doi.org/10.1007/bf00214151.

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34

Outa, James Omondi, Chrispin O. Kowenje, Christof Plessl, and Franz Jirsa. "Distribution of arsenic, silver, cadmium, lead and other trace elements in water, sediment and macrophytes in the Kenyan part of Lake Victoria: spatial, temporal and bioindicative aspects." Environmental Science and Pollution Research 27, no. 2 (November 20, 2019): 1485–98. http://dx.doi.org/10.1007/s11356-019-06525-9.

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AbstractThis is the first detailed report on the distribution of Ni, As, Sr and Ag in water, sediments and macrophytes from Lake Victoria, complemented with recent data on the heavy metals Cr, Cu, Zn, Cd and Pb. The study was conducted over an 11-month period at five sites in the Kenyan part of Lake Victoria: four sites in the Winam Gulf influenced by various anthropogenic pressures including a site near Kisumu City, and one in the main lake, perceived to have lesser direct anthropogenic influence. Compared with the main lake site, the water in Winam Gulf had significantly higher values for electrical conductivity and concentrations of dissolved components: organic carbon and bound nitrogen, as well as major and most trace elements. This contamination is also evident in surface sediments, which contained significantly higher levels of Cr, Zn, As, Ag, Cd and Pb compared with the main lake site. The mean levels of Cr, Cu, Zn, Ag and Pb exceeded probable effect levels at least at one of the gulf sites. The sediments at the Kisumu City site were classified as severely polluted with Cu (up to 259 mg/kg dw) and Pb (up to 1188 mg/kg dw). The sediment cores showed significantly higher levels of Cu, Zn, Ag, Cd and Pb in the surface (0–3 cm) versus subsurface (22–25 cm) layer at the Kisumu City site, indicating increasing pollution by these elements within the last 15 years. This is also the first report on trace elements in the emergent water plant Vossia cuspidata and submerged plant Ceratophyllum demersum from this lake. Even though the accumulation of most elements is comparable between C. demersum (whole plant) and V. cuspidata roots, the latter shows a better bioindicative potential. Contamination of the gulf with Ni, Cu, Zn, Ag, Cd and Pb is well mirrored in V. cuspidata roots. V. cuspidata strongly restricts the acropetal transport of trace elements, and hence using the shoots as fodder does not pose a risk to livestock.
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Ally, Mohamed Hamed Sango. "Prevalence and Serotypes diversity of Salmonella Species in the Nile Perch (Lates niloticus) of the Lake Victoria, Tanzania." Journal of Biology and Life Science 13, no. 2 (March 9, 2022): 1. http://dx.doi.org/10.5296/jbls.v13i2.19096.

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A cross-sectional study was conducted to estimate the prevalence, serotypes, antimicrobial resistance and plasmids profiles of Salmonella spp. in Nile perch of Lake Victoria, Tanzania. Salmonella spp. and Escherichia coli in water and fish samples were investigated by the bacteriological methods. Antimicrobial resistance profiles of Salmonella spp. were determined using the minimum inhibitory concentration (MIC) method. A total of 324 samples were analysed including Nile perch, water and swabs from surfaces of facilities used for fish transport. The finding showed the prevalence of Salmonella spp. in fish at fishing ground were 16/60 (26.7%), landing sites and markets were 9/60 (15%) and 18/60 (30%) respectively. A significant difference (p<0.05) was observed between the prevalence of Salmonella spp. in fish from fishing ground and those at landing sites, but not with those from markets (p>0.05). The main serotypes recovered were Salmonella ser. Waycross (41: z4z23 :-) and Salmonella enterica ssp. salamae (42: r :-). Most Salmonella serotypes showed the low resistance profiles against most of antimicrobials, but few isolates were resistant to Nalidixic acid 3/64 (4.7%), ampicillin 5/64 (7.8%), azithromycin 14/64 (21.9%) and sulfamethoxazole 22/64 (34.4%). Plasmids were detected in few Salmonella ser. Waycross compared to none of Salmonella ssp. salamae. Escherichia coli count ranged 0.77 to 2.44 log10 cfu/g in fish and 0.44 to 1.71 log10 cfu/ml in water. Contaminated fish with different Salmonella serovars imply pollution of the lake attributable to waste from point and nonpoint sources that may contain antibiotic residues accounting for resistant bacteria in aquatic environment. Un-hygienic fish handling and poor conditions of markets account for the high prevalence of Salmonella spp. in Nile perch at markets.
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36

I. Z, Mukasa-Tebandeke, Karume I, Wasajja H. Z, and Nankinga R. "Improving Quality of Water from Murchison Bay using Clay from Chelel, Kapchorwa District, Ugandao." JOURNAL OF ADVANCES IN CHEMISTRY 17 (January 4, 2020): 1–29. http://dx.doi.org/10.24297/jac.v17i.8537.

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Pollution resulting from increased human activities is threatening Lake Victoria, its effects are characterized by eutrophication, high turbidity, pH, iron(II) concentration and chemical oxygen demand (COD). In this study we have investigated the effect of Fe-montmorillonite clay from Chelel on turbidity, pH, concentration of iron, total suspended soils, total nutrients and COD of water sampled from Murchison bay watershed of Nakivubo channel south of Kampala. Varying amounts of clay powder was vigorously stirred with water samples for 5 minutes, filtered using Whitman paper at ambient temperatures. The optimum concentration of clay of 0.4gl-1 was found to produce 73.5+ 2% fall in COD indicating elimination of microbes and organic waste. The pH of water became 6.3+ 0.2 showing that impurities had been bound to clay. The turbidity of filtrate dropped to 15.7+ 0.3NTUshowing that clarity of water was improved by adsorption of suspended solids to clay minerals. The concentration of iron(II) fell from 3.7 + 0.3 to 2.5+ 0.2mgl-1 indicating fairly high extent of heavy metal removal from Murchison bay (MB) waters. The TSS and nutrients in MB water also decreased greatly when clay was stirred with water at ambient temperatures. The available data can be relied on to recommend use of this clay in treatment of waste water and/or sewage from Kampala. Further studies on combined use of clays with alums, zeolites and/or lime need to be carried out.
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37

Awange, Joseph L., and Benard Obera. "Motor Vehicles: Are They Emerging Threats to Lake Victoria and its Environment?" Water, Air, and Soil Pollution 182, no. 1-4 (January 13, 2007): 43–56. http://dx.doi.org/10.1007/s11270-006-9319-3.

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38

Hart, Barry T., Paul Bailey, Rick Edwards, Kent Hortle, Kim James, Andrew McMahon, Charles Meredith, and Kerrie Swadling. "Effects of salinity on river, stream and wetland ecosystems in Victoria, Australia." Water Research 24, no. 9 (September 1990): 1103–17. http://dx.doi.org/10.1016/0043-1354(90)90173-4.

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39

Bellgrove, Alecia, Margaret N. Clayton, and G. P. Quinn. "Effects of secondarily treated sewage effluent on intertidal macroalgal recruitment processes." Marine and Freshwater Research 48, no. 2 (1997): 137. http://dx.doi.org/10.1071/mf96011.

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Effluent is discharged below the low-water mark at Boags Rocks, Victoria, Australia, at an average rate of 437 × 106 L day–1. Three study sites following a gradient of pollution from high (at Boags Rocks) to intermediate (Cape Schanck) to unpolluted (Cheviot Beach) were chosen for the main experiments. Surveys of the algal assemblages were conducted in spring and summer and showed the absence of the pre-discharge dominant Hormosira banksii at Boags Rocks and an abundance of turf-forming and ephemeral species at the two polluted sites. There was no evidence that the treated sewage detrimentally affected either the availability of propagules (asexual spores, gametes, zygotes or fragments) or macroalgal recruitment to artificial or natural substrata. Opportunistic genera such as UIva and Enteromorpha showed very high recruitment and propagule densities in the water column at polluted sites, apparently benefiting from the increased nutrient loads. Investigation of the number of H. banksii zygotes in water samples from various habitats showed very limited dispersibility for this species. The small dispersal shadow of H. banksii, combined with the environmental pressures placed on establishing zygotes, would severely limit the re-establishment of this species at polluted sites, even if given suitable conditions.
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40

Yin, Kedong, and Paul J. Harrison. "Influence of the Pearl River estuary and vertical mixing in Victoria Harbor on water quality in relation to eutrophication impacts in Hong Kong waters." Marine Pollution Bulletin 54, no. 6 (June 2007): 646–56. http://dx.doi.org/10.1016/j.marpolbul.2007.03.001.

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41

Sultan, Khawar, and Kim Dowling. "Seasonal Changes in Arsenic Concentrations and Hydrogeochemistry of Canadian Creek, Ballarat (Victoria, Australia)." Water, Air, and Soil Pollution 169, no. 1-4 (January 2006): 355–74. http://dx.doi.org/10.1007/s11270-006-2813-9.

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42

Beeton, Alfred M. "Large freshwater lakes: present state, trends, and future." Environmental Conservation 29, no. 1 (March 2002): 21–38. http://dx.doi.org/10.1017/s0376892902000036.

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The large freshwater lakes of the world are an extremely valuable resource, not only because 68% of the global liquid surface fresh water is contained in them, but because of their importance to the economies, social structure, and viability of the riparian countries. This review provides decision makers with the knowledge of large lakes (≥ 500 km2) essential to establishing policies and implementing strategies compatible with sustainable development. This is achieved by considering the present state of the lakes, the extent of changes and factors causing them, long-term consequences of these changes, major threats and possible states of the lakes into the year 2025. Case studies of lakes are presented, namely the St Lawrence Great Lakes of North America as representatives of glacial scour lakes of North America, northern Europe and Asia, and the African Great Lakes as representatives of tropical tectonic lakes. Lake Baikal is also included because it is unique for its species, great age, and largest single volume of liquid surface fresh water. The Aral Sea is further included because of the ecological disaster following diversion of water away from its basin. The major impacts on large lakes are diversions, eutrophication, invasive species, land-use change, overexploitation of resources, and pollution. These impacts can or do affect all the representative lakes, but to varying degree. The St Lawrence Great Lakes have been severely impacted by eutrophication, land-use change, overfishing, invasive species and pollution. Eutrophication has been reversed for these lakes and constraints are now in place on land use change, such as shoreline alteration and destruction of wetlands. With the demise of most commercial fishing, overfishing is no longer as important. Invasive species have become a major problem as increasingly non-indigenous species gain access to the lakes. Pollution continues as a major impact. These problems are likely to continue and seriously impact use of the resources as well as bring about changes in the biota. Among the African Great Lakes, invasive species are a major problem in Lake Victoria, and eutrophication associated with land-use change and overexploitation of resources is a growing problem. Many endemic species have been lost and many are threatened, so that species associations will have changed by 2025. The Aral Sea continues to disappear and in the future, the remaining largest part of it will continue to become increasingly saline and eventually disappear. A small body of water will remain as a freshwater lake with a productive, although small, fishery. Lake Baikal shows evidence of pollution in the southern basin and is likely to be impacted by land-use changes, primarily logging. Some non-indigenous species are present, but so far, they are not a major problem. Overexploitation of resources in the watershed could lead to adverse impacts on inshore waters. Overfishing has been recognized and appears under control. The major threat to Baikal is continued and growing pollution. Climate change and pollution are global problems that will affect all lakes, large and small. At present, while some warming has occurred, climate change appears not to have impacted large lakes. Present studies on the Laurentian Great Lakes predict possible major impacts. Pollution, especially from persistent toxic substances such as PCBs, is a global problem. Diversion of water out or away from large lakes will become more of a threat as global human population growth continues and water supplies from rivers and ground water become depleted.
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43

Guo, Danlu, Anna Lintern, J. Angus Webb, Dongryeol Ryu, Ulrike Bende-Michl, Shuci Liu, and Andrew William Western. "A data-based predictive model for spatiotemporal variability in stream water quality." Hydrology and Earth System Sciences 24, no. 2 (February 24, 2020): 827–47. http://dx.doi.org/10.5194/hess-24-827-2020.

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Abstract. Our current capacity to model stream water quality is limited – particularly at large spatial scales across multiple catchments. To address this, we developed a Bayesian hierarchical statistical model to simulate the spatiotemporal variability in stream water quality across the state of Victoria, Australia. The model was developed using monthly water quality monitoring data over 21 years and across 102 catchments (which span over 130 000 km2). The modeling focused on six key water quality constituents: total suspended solids (TSS), total phosphorus (TP), filterable reactive phosphorus (FRP), total Kjeldahl nitrogen (TKN), nitrate–nitrite (NOx) and electrical conductivity (EC). The model structure was informed by knowledge of the key factors driving water quality variation, which were identified in two preceding studies using the same dataset. Apart from FRP, which is hardly explained (19.9 %), the model explains 38.2 % (NOx) to 88.6 % (EC) of the total spatiotemporal variability in water quality. Across constituents, the model generally captures over half of the observed spatial variability; the temporal variability remains largely unexplained across all catchments, although long-term trends are well captured. The model is best used to predict proportional changes in water quality on a Box–Cox-transformed scale, but it can have substantial bias if used to predict absolute values for high concentrations. This model can assist catchment management by (1) identifying hot spots and hot moments for waterway pollution; (2) predicting the effects of catchment changes on water quality, e.g., urbanization or forestation; and (3) identifying and explaining major water quality trends and changes. Further model improvements should focus on the following: (1) alternative statistical model structures to improve fitting for truncated data (for constituents where a large amount of data fall below the detection limit); and (2) better representation of nonconservative constituents (e.g., FRP) by accounting for important biogeochemical processes.
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Chapman, P. M., A. D. Arthur, M. D. Paine, and L. A. Taylor. "Sediment Studies Provide Key Information on the Need to Treat Sewage Discharged to Sea by a Major Canadian City." Water Science and Technology 28, no. 8-9 (October 1, 1993): 255–61. http://dx.doi.org/10.2166/wst.1993.0624.

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Relatively untreated (screened) municipal wastes from the City of Victoria, B.C. and environs are discharged to the sea as effluent from two long outfall pipes, only one of which (Macaulay Point) discharges to a depositional zone. Sediments along transects away from the Macaulay Point outfall were collected and the following parameters determined: contamination (selected chemicals of concern), toxicity (polychaete survival and growth, amphipod survival, and bivalve larvae abnormalities), and benthic infaunal community structure. Significant sediment contamination was restricted to within 100-400 m of the outfall with the exception of high PAH contamination due to the shipwreck of a collier in 1891. Sediment toxicity was restricted to effects on growth and development, also within 100-400 m of the outfall; survival was near control levels even at the outfall terminus. Benthic infaunal community structure indicated “moderate pollution” within 100 m of the outfall and showed a classic organic enrichment pattern of increasing species richness and lower abundance with distance from the outfall. Overall, the impact of the outfall on the sediments is minimal, highly restricted in extent, and not of major environmental concern. A public referendum, conducted after the release of this and of other scientific studies, resulted in the deferral of primary effluent treatment.
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45

Onyango, Dancan O., Christopher O. Ikporukpo, John O. Taiwo, and Stephen B. Opiyo. "Monitoring the extent and impacts of watershed urban development in the Lake Victoria Basin, Kenya, using a combination of population dynamics, remote sensing and GIS techniques." Environmental & Socio-economic Studies 9, no. 2 (June 1, 2021): 11–25. http://dx.doi.org/10.2478/environ-2021-0007.

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Abstract Several urban centres of different sizes have developed over time, and continue to grow, within the basin of Lake Victoria. Uncontrolled urban development, especially along the lake shore, puts environmental pressure on Lake Victoria and its local ecosystem. This study sought to monitor the extent and impacts of urban development (as measured by population growth and built-up land use/land cover) in the Lake Victoria basin, Kenya, between 1978 and 2018. Remote sensing and GIS-based land use/land cover classification was conducted to extract change in built-up areas from Landsat 3, 4, 5 and 8 satellite imagery obtained for the month of January at intervals of ten years. Change in population distribution and density was analysed based on decadal census data from the Kenya National Bureau of Statistics between 1979 and 2019. A statistical regression model was then estimated to relate population growth to built-up area expansion. Results indicate that the basin’s built-up area has expanded by 97% between 1978 and 2018 while the population increased by 140% between 1979 and 2019. Urban development was attributed to the rapidly increasing population in the area as seen in a positive statistical correlation (R2=0.5744) between increase in built-up area and population growth. The resulting environmental pressure on the local ecosystem has been documented mainly in terms of degradation of lake water quality, eutrophication and aquatic biodiversity loss. The study recommends the enactment and implementation of appropriate eco-sensitive local legislation and policies for sustainable urban and rural land use planning in the area. This should aim to control and regulate urban expansion especially in the immediate shoreline areas of the lake and associated riparian zones.
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46

Arinaitwe, Kenneth, Nils Keltsch, Anthony Taabu-Munyaho, Thorsten Reemtsma, and Urs Berger. "Perfluoroalkyl substances (PFASs) in the Ugandan waters of Lake Victoria: Spatial distribution, catchment release and public exposure risk via municipal water consumption." Science of The Total Environment 783 (August 2021): 146970. http://dx.doi.org/10.1016/j.scitotenv.2021.146970.

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47

Kwach, B. O., and J. O. Lalah. "High Concentrations of Polycyclic Aromatic Hydrocarbons Found in Water and Sediments of Car Wash and Kisat Areas of Winam Gulf, Lake Victoria-Kenya." Bulletin of Environmental Contamination and Toxicology 83, no. 5 (September 19, 2009): 727–33. http://dx.doi.org/10.1007/s00128-009-9859-5.

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48

Kwach, Bowa O., Joseph O. Lalah, and Wandiga O. Shem. "Spartial and Seasonal Variations in Concentrations of Polycyclic Aromatic Hydrocarbons in Water and Sediment of Kisumu City Bay of Winam Gulf, Lake Victoria-Kenya." Bulletin of Environmental Contamination and Toxicology 83, no. 5 (July 23, 2009): 734–41. http://dx.doi.org/10.1007/s00128-009-9830-5.

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49

Stamatov, V., and A. Stamatov. "Long-term impact of water desalination plants on the energy and carbon dioxide balance of Victoria, Australia: a case study from Wonthaggi." Water and Environment Journal 24, no. 3 (June 7, 2009): 208–14. http://dx.doi.org/10.1111/j.1747-6593.2009.00179.x.

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50

White, S. "Speleogenesis in aeolian calcarenite: A case study in western Victoria." Environmental Geology 23, no. 4 (June 1994): 248–55. http://dx.doi.org/10.1007/bf00766739.

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