A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon
Rivers whose basins are underlain by carbonate rocks exhibit high pH, lower desorption of metals and possess high buffering capacity against acidic inputs to the river. The catchment of River Nahr-Ibrahim, Lebanon, is largely underlain by limestone. Compared to neighbouring countries, Lebanon is rel...
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| Format: | article |
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2003
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| Online Access: | http://hdl.handle.net/10725/2475 http://dx.doi.org/10.1023/A:1021284126632 http://link.springer.com/article/10.1023/A:1021284126632 |
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| _version_ | 1864513458258575360 |
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| author | Korfali, Samira Ibrahim |
| author2 | Davies, Brian E. |
| author2_role | author |
| author_facet | Korfali, Samira Ibrahim Davies, Brian E. |
| author_role | author |
| dc.creator.none.fl_str_mv | Korfali, Samira Ibrahim Davies, Brian E. |
| dc.date.none.fl_str_mv | 2003 2015-11-07T10:00:24Z 2015-11-07T10:00:24Z 2016-05-19 |
| dc.identifier.none.fl_str_mv | 0269-4042 http://hdl.handle.net/10725/2475 http://dx.doi.org/10.1023/A:1021284126632 Korfali, S. I., & Davies, B. E. (2003). A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon: 1996 and 1999. Environmental Geochemistry and Health, 25(1), 41-50. http://link.springer.com/article/10.1023/A:1021284126632 |
| dc.language.none.fl_str_mv | en |
| dc.relation.none.fl_str_mv | Environmental geochemistry and health |
| dc.rights.*.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.title.none.fl_str_mv | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon 1996 AND 1999 |
| dc.type.none.fl_str_mv | Article info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | Rivers whose basins are underlain by carbonate rocks exhibit high pH, lower desorption of metals and possess high buffering capacity against acidic inputs to the river. The catchment of River Nahr-Ibrahim, Lebanon, is largely underlain by limestone. Compared to neighbouring countries, Lebanon is relatively fortunate since precipitation is high. However, recently a warming in temperature and a drop in precipitation has occurred, thus causing low water levels in rivers. The objective of this study is to investigate the variation of the total metal content (Fe, Mn, Zn, Cu, Pb and Cd) in bed sediments and water of River Nahr-Ibrahim between 1996 and 1999 (two years); and relate these variations to the effect of changes in human activities and/or due to the variations of precipitation rate, temperature and pH of water. Bed load sediments and stream water were collected simultaneously from five sampling sites. Water pH and temperature were determined in situ. Sediment samples were dried at room temperature and sieved; the sediment size < 75µm size was retained. Water was analysed for major constituents and trace metals. Metals were extracted from sediments with aqua regia. Metal concentration in water and sediments were determined using ICP-MS technique. Data revealed a drop in metal concentrations (Zn, Cu, Pb, Cd) in sediments at quarry site after its closure. The decrease in precipitation rate, lowering the level of water and the dilution of industrial discharges and decrease in water pH led most probably to the desorption of metals from sediments into the water. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | LAURepo_a1c5267cb06e7b31f4fa6f0e8c2e90d2 |
| identifier_str_mv | 0269-4042 Korfali, S. I., & Davies, B. E. (2003). A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon: 1996 and 1999. Environmental Geochemistry and Health, 25(1), 41-50. |
| language_invalid_str_mv | en |
| network_acronym_str | LAURepo |
| network_name_str | Lebanese American University repository |
| oai_identifier_str | oai:laur.lau.edu.lb:10725/2475 |
| publishDate | 2003 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| spelling | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon1996 AND 1999Korfali, Samira IbrahimDavies, Brian E.Rivers whose basins are underlain by carbonate rocks exhibit high pH, lower desorption of metals and possess high buffering capacity against acidic inputs to the river. The catchment of River Nahr-Ibrahim, Lebanon, is largely underlain by limestone. Compared to neighbouring countries, Lebanon is relatively fortunate since precipitation is high. However, recently a warming in temperature and a drop in precipitation has occurred, thus causing low water levels in rivers. The objective of this study is to investigate the variation of the total metal content (Fe, Mn, Zn, Cu, Pb and Cd) in bed sediments and water of River Nahr-Ibrahim between 1996 and 1999 (two years); and relate these variations to the effect of changes in human activities and/or due to the variations of precipitation rate, temperature and pH of water. Bed load sediments and stream water were collected simultaneously from five sampling sites. Water pH and temperature were determined in situ. Sediment samples were dried at room temperature and sieved; the sediment size < 75µm size was retained. Water was analysed for major constituents and trace metals. Metals were extracted from sediments with aqua regia. Metal concentration in water and sediments were determined using ICP-MS technique. Data revealed a drop in metal concentrations (Zn, Cu, Pb, Cd) in sediments at quarry site after its closure. The decrease in precipitation rate, lowering the level of water and the dilution of industrial discharges and decrease in water pH led most probably to the desorption of metals from sediments into the water.PublishedN/A2015-11-07T10:00:24Z2015-11-07T10:00:24Z20032016-05-19Articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0269-4042http://hdl.handle.net/10725/2475http://dx.doi.org/10.1023/A:1021284126632Korfali, S. I., & Davies, B. E. (2003). A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon: 1996 and 1999. Environmental Geochemistry and Health, 25(1), 41-50.http://link.springer.com/article/10.1023/A:1021284126632enEnvironmental geochemistry and healthinfo:eu-repo/semantics/openAccessoai:laur.lau.edu.lb:10725/24752021-03-19T09:59:48Z |
| spellingShingle | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon Korfali, Samira Ibrahim |
| status_str | publishedVersion |
| title | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| title_full | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| title_fullStr | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| title_full_unstemmed | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| title_short | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| title_sort | A comparison of metals in sediments and water in the River Nahr-Ibrahim, Lebanon |
| url | http://hdl.handle.net/10725/2475 http://dx.doi.org/10.1023/A:1021284126632 http://link.springer.com/article/10.1023/A:1021284126632 |