Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.

Water pollution with nutrient-based contaminants is a major concern as it may lead to the eutrophication of freshwater bodies. The purpose of this study was to investigate the content and dynamics of nutrients in the shallow (max. 6 m) Lake Mulehe. We collected 54 water samples from nine sampling st...

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Main Author: Saturday, Alex
Format: Article
Published: Kabale University 2023
Online Access:http://hdl.handle.net/20.500.12493/1279
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author Saturday, Alex
author_facet Saturday, Alex
author_sort Saturday, Alex
collection KAB-DR
description Water pollution with nutrient-based contaminants is a major concern as it may lead to the eutrophication of freshwater bodies. The purpose of this study was to investigate the content and dynamics of nutrients in the shallow (max. 6 m) Lake Mulehe. We collected 54 water samples from nine sampling stations between the wet season March–May 2020 and the dry season (June–August 2020). Nutrients; ammonia–nitrogen (NH4–N), nitrate–nitrogen (NO3–N), nitrite–nitrogen (NO2–N), total nitrogen (TN), total phosphorus (TP) and soluble reactive phosphorus (SRP) were investigated in accordance with APHA 2017 standard procedures. Besides, physical parameters: Temperature, pH, turbidity, electrical conductivity and dissolved oxygen were measured in situ. The water quality index (WQI) was used to determine the water quality of Lake Muhele using drinking water quality standards developed by the Uganda National Bureau of Standards and the World Health Organization. Results indicated that nutrients (TN, NO3–N, TP, NH4-N, NO2–N and SRP) did not differ substantially between study stations (p > 0.05) but did reveal significant differences (p < 0.05) across study months. Besides, nutrient levels differed significantly between seasons (p < 0.05) except for SRP and NH4–N. The WQI values varied from 36.0 to 74.5, with a mean of 58.69. The recorded overall WQI value places Lake Mulehe’s water quality into the ‘poor’ category in terms of worthiness for human consumption. The study, therefore, recommends continuous pollution monitoring and enforcement of local regulations to reduce pollution in the lake as a result of anthropogenic activities.
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spelling oai:idr.kab.ac.ug:20.500.12493-12792024-01-17T04:44:40Z Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda. Saturday, Alex Water pollution with nutrient-based contaminants is a major concern as it may lead to the eutrophication of freshwater bodies. The purpose of this study was to investigate the content and dynamics of nutrients in the shallow (max. 6 m) Lake Mulehe. We collected 54 water samples from nine sampling stations between the wet season March–May 2020 and the dry season (June–August 2020). Nutrients; ammonia–nitrogen (NH4–N), nitrate–nitrogen (NO3–N), nitrite–nitrogen (NO2–N), total nitrogen (TN), total phosphorus (TP) and soluble reactive phosphorus (SRP) were investigated in accordance with APHA 2017 standard procedures. Besides, physical parameters: Temperature, pH, turbidity, electrical conductivity and dissolved oxygen were measured in situ. The water quality index (WQI) was used to determine the water quality of Lake Muhele using drinking water quality standards developed by the Uganda National Bureau of Standards and the World Health Organization. Results indicated that nutrients (TN, NO3–N, TP, NH4-N, NO2–N and SRP) did not differ substantially between study stations (p > 0.05) but did reveal significant differences (p < 0.05) across study months. Besides, nutrient levels differed significantly between seasons (p < 0.05) except for SRP and NH4–N. The WQI values varied from 36.0 to 74.5, with a mean of 58.69. The recorded overall WQI value places Lake Mulehe’s water quality into the ‘poor’ category in terms of worthiness for human consumption. The study, therefore, recommends continuous pollution monitoring and enforcement of local regulations to reduce pollution in the lake as a result of anthropogenic activities. 2023-07-04T13:19:59Z 2023-07-04T13:19:59Z 2023 Article Saturday, Alex (2023). Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda. Kabale: Kabale University. http://hdl.handle.net/20.500.12493/1279 application/pdf Kabale University
spellingShingle Saturday, Alex
Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title_full Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title_fullStr Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title_full_unstemmed Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title_short Investigation of the Content and Dynamics of Nutrients In The Surface Water of Lake Mulehe In Kisoro District, South-Western Uganda.
title_sort investigation of the content and dynamics of nutrients in the surface water of lake mulehe in kisoro district south western uganda
url http://hdl.handle.net/20.500.12493/1279
work_keys_str_mv AT saturdayalex investigationofthecontentanddynamicsofnutrientsinthesurfacewateroflakemuleheinkisorodistrictsouthwesternuganda