Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal
Phosphorus reactivity and bioavailability in lake sediments is determined by diverse fractions of phosphorus (P) and their distribution. To gain deeper insights into P dynamics in Lakes, sediments from El Temsah Lake were investigated for water soluble P (WSP), readily desorbable P (RDP), algal avai...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Oceanologia |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0078323421001007 |
| _version_ | 1818027498064052224 |
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| author | Alaa M. Younis Naglaa F. Soliman Eman M. Elkady Lamiaa I. Mohamedein |
| author_facet | Alaa M. Younis Naglaa F. Soliman Eman M. Elkady Lamiaa I. Mohamedein |
| author_sort | Alaa M. Younis |
| collection | DOAJ |
| description | Phosphorus reactivity and bioavailability in lake sediments is determined by diverse fractions of phosphorus (P) and their distribution. To gain deeper insights into P dynamics in Lakes, sediments from El Temsah Lake were investigated for water soluble P (WSP), readily desorbable P (RDP), algal available P (AAP) and Olsen-P using different chemical extraction methods. Total P (TP), organic P (OP), inorganic P (IP) contents, were also investigated. The TP, OP and IP concentrations in the sediments were 598.39 µg/g, 199.76 µg/g and 398.63 µg/g, correspondingly. Concentrations of the bioavailable P in the sediments followed the order AAP (48.42 µg/g)>WSP (14.60 µg/g)>RDP (1.82 µg/g)>Olsen-P (1.50 µg/g). Pearson correlation analysis exposed that there were significant correlations among the bioavailable P fractions concentrations and the TP concentrations (r=0.83; p>0.01, r=0.94; p>0.01, r=0.62; p>0.05); for WSP, AAP, and Olsen-P respectively. Moreover, there were no obvious associations amongst total P and N, Al, Ca, Fe, Mg, Mn, and OM in the sediments. The outcomes of phosphorus ecological risk assessment in sediments by single pollution standard index method revealed that the standard index of TP varied from 0.19 to 1.85. It demonstrated that the ecological pollution risks of phosphorus in El Temsah Lake sediments was comparatively low. |
| first_indexed | 2024-12-10T04:48:51Z |
| format | Article |
| id | doaj.art-6651bbe1ff394e17a90f57ab9eba50bc |
| institution | Directory Open Access Journal |
| issn | 0078-3234 |
| language | English |
| last_indexed | 2024-12-10T04:48:51Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Oceanologia |
| spelling | doaj.art-6651bbe1ff394e17a90f57ab9eba50bc2022-12-22T02:01:39ZengElsevierOceanologia0078-32342022-04-01642287298Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez CanalAlaa M. Younis0Naglaa F. Soliman1Eman M. Elkady2Lamiaa I. Mohamedein3Department of Aquatic Environment, Faculty of Fish Resources, Suez University, Suez, EgyptDepartment of Environmental Studies, Institute of Graduate Studies & Research – Alexandria University, Egypt; Basic and Applied Science Institute, Egypt-Japan University of Science and Technology (E-JUST), Alexandria, Egypt; Corresponding author at: Basic and Applied Science Institute, Egypt-Japan University of Science and Technology (E-JUST) campus, P.O. Box 179, New Borg El-Arab City, Postal Code 21934, Alexandria, Egypt. Telephone: +201004830165; fax: +2034251038.National Institute of Oceanography & Fisheries (NIOF), Suez, EgyptNational Institute of Oceanography & Fisheries (NIOF), Suez, EgyptPhosphorus reactivity and bioavailability in lake sediments is determined by diverse fractions of phosphorus (P) and their distribution. To gain deeper insights into P dynamics in Lakes, sediments from El Temsah Lake were investigated for water soluble P (WSP), readily desorbable P (RDP), algal available P (AAP) and Olsen-P using different chemical extraction methods. Total P (TP), organic P (OP), inorganic P (IP) contents, were also investigated. The TP, OP and IP concentrations in the sediments were 598.39 µg/g, 199.76 µg/g and 398.63 µg/g, correspondingly. Concentrations of the bioavailable P in the sediments followed the order AAP (48.42 µg/g)>WSP (14.60 µg/g)>RDP (1.82 µg/g)>Olsen-P (1.50 µg/g). Pearson correlation analysis exposed that there were significant correlations among the bioavailable P fractions concentrations and the TP concentrations (r=0.83; p>0.01, r=0.94; p>0.01, r=0.62; p>0.05); for WSP, AAP, and Olsen-P respectively. Moreover, there were no obvious associations amongst total P and N, Al, Ca, Fe, Mg, Mn, and OM in the sediments. The outcomes of phosphorus ecological risk assessment in sediments by single pollution standard index method revealed that the standard index of TP varied from 0.19 to 1.85. It demonstrated that the ecological pollution risks of phosphorus in El Temsah Lake sediments was comparatively low.http://www.sciencedirect.com/science/article/pii/S0078323421001007SedimentsBioavailable phosphorusChemical extraction methodsPhosphorus ecological riskEl Temsah LakeEgypt |
| spellingShingle | Alaa M. Younis Naglaa F. Soliman Eman M. Elkady Lamiaa I. Mohamedein Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal Oceanologia Sediments Bioavailable phosphorus Chemical extraction methods Phosphorus ecological risk El Temsah Lake Egypt |
| title | Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal |
| title_full | Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal |
| title_fullStr | Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal |
| title_full_unstemmed | Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal |
| title_short | Distribution and ecological risk evaluation of bioavailable phosphorus in sediments of El Temsah Lake, Suez Canal |
| title_sort | distribution and ecological risk evaluation of bioavailable phosphorus in sediments of el temsah lake suez canal |
| topic | Sediments Bioavailable phosphorus Chemical extraction methods Phosphorus ecological risk El Temsah Lake Egypt |
| url | http://www.sciencedirect.com/science/article/pii/S0078323421001007 |
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