Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices
Lake Nasser is a freshwater lake that supplies over 95% of Egypt’s freshwater budget. Therefore, the quality of water in the lake is critical for its conservation. In addition to assessing the metal pollution load, the quality of water and sediment in the lake was assessed by collecting water and se...
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| Format: | Article |
| Language: | English |
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Sciendo
2024-04-01
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| Series: | Oceanological and Hydrobiological Studies |
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| Online Access: | https://doi.org/10.26881/oahs-2024.1.06 |
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| author | Abdel-Satar Amaal M. Salem Salem G. El-Sayed Seliem M. Goher Mohamed E. Abdelaziz Ghada S. Al-Afify Afify D.G. |
| author_facet | Abdel-Satar Amaal M. Salem Salem G. El-Sayed Seliem M. Goher Mohamed E. Abdelaziz Ghada S. Al-Afify Afify D.G. |
| author_sort | Abdel-Satar Amaal M. |
| collection | DOAJ |
| description | Lake Nasser is a freshwater lake that supplies over 95% of Egypt’s freshwater budget. Therefore, the quality of water in the lake is critical for its conservation. In addition to assessing the metal pollution load, the quality of water and sediment in the lake was assessed by collecting water and sediment samples for metal content analysis. Lake Nasser is a warm monomictic water body with a single circulation cycle in the cold months. Dissolved oxygen content in bottom water samples often dropped significantly to levels below international guidelines, reflecting reduced rates of photosynthetic activity. Although 50% of the lake’s water samples contained Pb concentrations slightly above the World Health Organization’s (WHO) limit for drinking water, the metal pollution index did not exceed the critical level and was classified as low metal water pollution. Based on the geoaccumulation index (I-geo), the enrichment factor (EF) and the pollution load index, the sediments of Lake Nasser are practically uncontaminated with metals. Ni has the highest EF and I-geo values, while Ni and Cd contributed the most to the ecological risk and toxic risk index. The obtained results revealed that Cd and Ni in the sediments may pose a threat to organisms living in Lake Nasser. |
| format | Article |
| id | doaj-art-0d661052b017498199b48206af9b09d6 |
| institution | Kabale University |
| issn | 1897-3191 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Oceanological and Hydrobiological Studies |
| spelling | doaj-art-0d661052b017498199b48206af9b09d62025-01-20T11:10:24ZengSciendoOceanological and Hydrobiological Studies1897-31912024-04-01531406010.26881/oahs-2024.1.06Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indicesAbdel-Satar Amaal M.0Salem Salem G.1El-Sayed Seliem M.2Goher Mohamed E.3Abdelaziz Ghada S.4Al-Afify Afify D.G.5National Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptNational Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptNational Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptNational Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptNational Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptNational Institute of Oceanography and Fisheries, NIOF, Cairo, EgyptLake Nasser is a freshwater lake that supplies over 95% of Egypt’s freshwater budget. Therefore, the quality of water in the lake is critical for its conservation. In addition to assessing the metal pollution load, the quality of water and sediment in the lake was assessed by collecting water and sediment samples for metal content analysis. Lake Nasser is a warm monomictic water body with a single circulation cycle in the cold months. Dissolved oxygen content in bottom water samples often dropped significantly to levels below international guidelines, reflecting reduced rates of photosynthetic activity. Although 50% of the lake’s water samples contained Pb concentrations slightly above the World Health Organization’s (WHO) limit for drinking water, the metal pollution index did not exceed the critical level and was classified as low metal water pollution. Based on the geoaccumulation index (I-geo), the enrichment factor (EF) and the pollution load index, the sediments of Lake Nasser are practically uncontaminated with metals. Ni has the highest EF and I-geo values, while Ni and Cd contributed the most to the ecological risk and toxic risk index. The obtained results revealed that Cd and Ni in the sediments may pose a threat to organisms living in Lake Nasser.https://doi.org/10.26881/oahs-2024.1.06lake nasserwater qualityheavy metalssediment analysispotential risk indices |
| spellingShingle | Abdel-Satar Amaal M. Salem Salem G. El-Sayed Seliem M. Goher Mohamed E. Abdelaziz Ghada S. Al-Afify Afify D.G. Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices Oceanological and Hydrobiological Studies lake nasser water quality heavy metals sediment analysis potential risk indices |
| title | Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices |
| title_full | Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices |
| title_fullStr | Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices |
| title_full_unstemmed | Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices |
| title_short | Comprehensive assessment of water and sediment quality in Lake Nasser, Egypt, using various potential risk indices |
| title_sort | comprehensive assessment of water and sediment quality in lake nasser egypt using various potential risk indices |
| topic | lake nasser water quality heavy metals sediment analysis potential risk indices |
| url | https://doi.org/10.26881/oahs-2024.1.06 |
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