Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda
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 dry season (June–August 2020). Nutrients; ammonia–nitrogen (NH4–N), nitrate...
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2024
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| Online Access: | http://hdl.handle.net/20.500.12493/1949 |
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| author | Saturday, Alex Kangume , Susan Bamwerinde, Wilson |
| author_facet | Saturday, Alex Kangume , Susan Bamwerinde, Wilson |
| author_sort | Saturday, Alex |
| collection | KAB-DR |
| description | 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 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 difer substantially between study stations
(p>0.05) but did reveal signifcant diferences (p<0.05) across study months. Besides, nutrient levels difered signifcantly
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. |
| format | Article |
| id | oai:idr.kab.ac.ug:20.500.12493-1949 |
| institution | KAB-DR |
| language | English |
| publishDate | 2024 |
| publisher | Springer |
| record_format | dspace |
| spelling | oai:idr.kab.ac.ug:20.500.12493-19492024-08-01T00:03:09Z Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda Saturday, Alex Kangume , Susan Bamwerinde, Wilson Water quality · Nutrient dynamics · Water quality index · Lake Mulehe 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 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 difer substantially between study stations (p>0.05) but did reveal signifcant diferences (p<0.05) across study months. Besides, nutrient levels difered signifcantly 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. Kabale University 2024-02-08T08:53:55Z 2024-02-08T08:53:55Z 2023-06-13 Article http://hdl.handle.net/20.500.12493/1949 en Attribution-NonCommercial-NoDerivs 3.0 United States http://creativecommons.org/licenses/by-nc-nd/3.0/us/ application/pdf Springer |
| spellingShingle | Water quality · Nutrient dynamics · Water quality index · Lake Mulehe Saturday, Alex Kangume , Susan Bamwerinde, Wilson Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title | Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title_full | Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title_fullStr | Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title_full_unstemmed | Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title_short | Content and dynamics of nutrients in the surface water of shallow Lake Mulehe in Kisoro District, South–western Uganda |
| title_sort | content and dynamics of nutrients in the surface water of shallow lake mulehe in kisoro district south western uganda |
| topic | Water quality · Nutrient dynamics · Water quality index · Lake Mulehe |
| url | http://hdl.handle.net/20.500.12493/1949 |
| work_keys_str_mv | AT saturdayalex contentanddynamicsofnutrientsinthesurfacewaterofshallowlakemuleheinkisorodistrictsouthwesternuganda AT kangumesusan contentanddynamicsofnutrientsinthesurfacewaterofshallowlakemuleheinkisorodistrictsouthwesternuganda AT bamwerindewilson contentanddynamicsofnutrientsinthesurfacewaterofshallowlakemuleheinkisorodistrictsouthwesternuganda |