Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator
The present work aims to evaluate seasonal metal pollution along Greater Cairo sector of the River Nile, Egypt, using wild Nile tilapia, Oreochromis niloticus, as bioindicator and to conduct a risk assessment for human consumers. Greater Cairo is the largest populated area along the whole course of...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Journal of Toxicology |
| Online Access: | http://dx.doi.org/10.1155/2015/167319 |
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| author | Wael A. Omar Wafai Z. A. Mikhail Hanaa M. Abdo Tarek A. Abou El Defan Mamdouh M. Poraas |
| author_facet | Wael A. Omar Wafai Z. A. Mikhail Hanaa M. Abdo Tarek A. Abou El Defan Mamdouh M. Poraas |
| author_sort | Wael A. Omar |
| collection | DOAJ |
| description | The present work aims to evaluate seasonal metal pollution along Greater Cairo sector of the River Nile, Egypt, using wild Nile tilapia, Oreochromis niloticus, as bioindicator and to conduct a risk assessment for human consumers. Greater Cairo is the largest populated area along the whole course of River Nile with a wide range of anthropogenic activities. Effects of metal pollution on fish body indices were studied using condition factor (CF) and scaled mass index (SMI). Metal pollution index (MPI) showed that the total metal load in fish organs followed the follwoing order: kidney > liver > gill > muscle which gives a better idea about the target organs for metal accumulation. Metal concentrations in fish muscle (edible tissue) showed the following arrangement: Fe > Zn > Cu > Mn > Pb > Cd. Metal’s bioaccumulation factor (BAF) in fish muscle showed the following arrangement: Zn > Cu > Fe > Mn > Cd and Pb. The hazard index (HI) as an indicator of human health risks associated with fish consumption showed that adverse health effects are not expected to occur in most cases. However, the metals’ cumulative risk effects gave an alarming sign specifically at high fish consumption rates. |
| format | Article |
| id | doaj-art-2f134a47e98848949fd040e4d7dfcc64 |
| institution | OA Journals |
| issn | 1687-8191 1687-8205 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Toxicology |
| spelling | doaj-art-2f134a47e98848949fd040e4d7dfcc642025-08-20T02:08:11ZengWileyJournal of Toxicology1687-81911687-82052015-01-01201510.1155/2015/167319167319Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as BioindicatorWael A. Omar0Wafai Z. A. Mikhail1Hanaa M. Abdo2Tarek A. Abou El Defan3Mamdouh M. Poraas4Department of Zoology, Faculty of Science, Cairo University, Giza 12613, EgyptDepartment of Natural Resources, Institute of African Research and Studies, Cairo University, Giza 12613, EgyptDepartment of Natural Resources, Institute of African Research and Studies, Cairo University, Giza 12613, EgyptSoil, Water and Environment Research Institute (SWERI), Agricultural Research Center, Ministry of Agriculture and Land Reclamation, Giza 12613, EgyptSoil, Water and Environment Research Institute (SWERI), Agricultural Research Center, Ministry of Agriculture and Land Reclamation, Giza 12613, EgyptThe present work aims to evaluate seasonal metal pollution along Greater Cairo sector of the River Nile, Egypt, using wild Nile tilapia, Oreochromis niloticus, as bioindicator and to conduct a risk assessment for human consumers. Greater Cairo is the largest populated area along the whole course of River Nile with a wide range of anthropogenic activities. Effects of metal pollution on fish body indices were studied using condition factor (CF) and scaled mass index (SMI). Metal pollution index (MPI) showed that the total metal load in fish organs followed the follwoing order: kidney > liver > gill > muscle which gives a better idea about the target organs for metal accumulation. Metal concentrations in fish muscle (edible tissue) showed the following arrangement: Fe > Zn > Cu > Mn > Pb > Cd. Metal’s bioaccumulation factor (BAF) in fish muscle showed the following arrangement: Zn > Cu > Fe > Mn > Cd and Pb. The hazard index (HI) as an indicator of human health risks associated with fish consumption showed that adverse health effects are not expected to occur in most cases. However, the metals’ cumulative risk effects gave an alarming sign specifically at high fish consumption rates.http://dx.doi.org/10.1155/2015/167319 |
| spellingShingle | Wael A. Omar Wafai Z. A. Mikhail Hanaa M. Abdo Tarek A. Abou El Defan Mamdouh M. Poraas Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator Journal of Toxicology |
| title | Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator |
| title_full | Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator |
| title_fullStr | Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator |
| title_full_unstemmed | Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator |
| title_short | Ecological Risk Assessment of Metal Pollution along Greater Cairo Sector of the River Nile, Egypt, Using Nile Tilapia, Oreochromis niloticus, as Bioindicator |
| title_sort | ecological risk assessment of metal pollution along greater cairo sector of the river nile egypt using nile tilapia oreochromis niloticus as bioindicator |
| url | http://dx.doi.org/10.1155/2015/167319 |
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