Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa
An environmental pollution assessment of the Ebrie lagoon, the largest coastal ecosystem in Western Africa, was executed by applying the Driving force-Pressure-State-Impacts-Response (DPSIR) framework. The domestic and industrial activities in Abidjan and agricultural activities in the wider catchme...
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ftunivwagenin:oai:library.wur.nl:wurpubs/328362 2024-02-04T10:02:50+01:00 Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa Scheren, P.A.G.M. Kroeze, C. Jansen, F.J.J.G. Hordijk, L. Ptasinski, K.J. 2004 application/pdf https://research.wur.nl/en/publications/integrated-water-pollution-assessment-of-the-ebrié-lagoon-ivory-c https://doi.org/10.1016/j.jmarsys.2003.08.002 en eng https://edepot.wur.nl/39652 https://research.wur.nl/en/publications/integrated-water-pollution-assessment-of-the-ebrié-lagoon-ivory-c doi:10.1016/j.jmarsys.2003.08.002 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Journal of Marine Systems 44 (2004) 1-2 ISSN: 0924-7963 dry deposition emissions inputs nitrate nitrogen north-atlantic ocean phosphorus precipitation wet world rivers info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2004 ftunivwagenin https://doi.org/10.1016/j.jmarsys.2003.08.002 2024-01-10T23:26:24Z An environmental pollution assessment of the Ebrie lagoon, the largest coastal ecosystem in Western Africa, was executed by applying the Driving force-Pressure-State-Impacts-Response (DPSIR) framework. The domestic and industrial activities in Abidjan and agricultural activities in the wider catchment area were identified as the main driving forces. Two-thirds of Biological Oxygen Demand (BOD) loads and 95% of total nitrogen (N) and phosphorous (P) loads of Abidjan are from domestic effluents, with industry making up the rest. Outside of the direct influence of Abidjan, nutrient levels in the lagoon are governed by the influx of nutrients from the rivers Comoe, Me and Agneby, with nutrient land runoff as the key factors. Total annual N loads to the lagoon for 2000 are estimated at 33 kt, of which 45% from urban sources, 42% from land runoff and 13% from atmospheric deposition. Estimates for P are 2.5 kt, 39%, 48% and 13%, respectively. Scenario analysis has shown that autonomous growth, without pollution reduction measures, would result in an estimated five-fold increase in nutrient inputs to the lagoon over the period 1980-2050. Nutrient concentrations in the lagoon would consequently increase by a factor of 3 1/2, which could escalate to a dramatic level of eutrophication for the complete system. Pollution reduction policies aimed at non-point sources would be most effective in reducing nutrient concentrations. Point-source pollution reduction would improve conditions around Abidjan, but not substantially in the other sections of the lagoon. The approach taken in this study has proven efficient under conditions of relative data scarceness, and sufficiently reliable to allow for policy level conclusions to be drawn. (C) 2003 Elsevier B.V. All rights reserved. Article in Journal/Newspaper North Atlantic Wageningen UR (University & Research Centre): Digital Library Journal of Marine Systems 44 1-2 1 17 |
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Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
dry deposition emissions inputs nitrate nitrogen north-atlantic ocean phosphorus precipitation wet world rivers |
spellingShingle |
dry deposition emissions inputs nitrate nitrogen north-atlantic ocean phosphorus precipitation wet world rivers Scheren, P.A.G.M. Kroeze, C. Jansen, F.J.J.G. Hordijk, L. Ptasinski, K.J. Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
topic_facet |
dry deposition emissions inputs nitrate nitrogen north-atlantic ocean phosphorus precipitation wet world rivers |
description |
An environmental pollution assessment of the Ebrie lagoon, the largest coastal ecosystem in Western Africa, was executed by applying the Driving force-Pressure-State-Impacts-Response (DPSIR) framework. The domestic and industrial activities in Abidjan and agricultural activities in the wider catchment area were identified as the main driving forces. Two-thirds of Biological Oxygen Demand (BOD) loads and 95% of total nitrogen (N) and phosphorous (P) loads of Abidjan are from domestic effluents, with industry making up the rest. Outside of the direct influence of Abidjan, nutrient levels in the lagoon are governed by the influx of nutrients from the rivers Comoe, Me and Agneby, with nutrient land runoff as the key factors. Total annual N loads to the lagoon for 2000 are estimated at 33 kt, of which 45% from urban sources, 42% from land runoff and 13% from atmospheric deposition. Estimates for P are 2.5 kt, 39%, 48% and 13%, respectively. Scenario analysis has shown that autonomous growth, without pollution reduction measures, would result in an estimated five-fold increase in nutrient inputs to the lagoon over the period 1980-2050. Nutrient concentrations in the lagoon would consequently increase by a factor of 3 1/2, which could escalate to a dramatic level of eutrophication for the complete system. Pollution reduction policies aimed at non-point sources would be most effective in reducing nutrient concentrations. Point-source pollution reduction would improve conditions around Abidjan, but not substantially in the other sections of the lagoon. The approach taken in this study has proven efficient under conditions of relative data scarceness, and sufficiently reliable to allow for policy level conclusions to be drawn. (C) 2003 Elsevier B.V. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Scheren, P.A.G.M. Kroeze, C. Jansen, F.J.J.G. Hordijk, L. Ptasinski, K.J. |
author_facet |
Scheren, P.A.G.M. Kroeze, C. Jansen, F.J.J.G. Hordijk, L. Ptasinski, K.J. |
author_sort |
Scheren, P.A.G.M. |
title |
Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
title_short |
Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
title_full |
Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
title_fullStr |
Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
title_full_unstemmed |
Integrated water pollution assessment of the Ebrié Lagoon, Ivory Coast, West Africa |
title_sort |
integrated water pollution assessment of the ebrié lagoon, ivory coast, west africa |
publishDate |
2004 |
url |
https://research.wur.nl/en/publications/integrated-water-pollution-assessment-of-the-ebrié-lagoon-ivory-c https://doi.org/10.1016/j.jmarsys.2003.08.002 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Journal of Marine Systems 44 (2004) 1-2 ISSN: 0924-7963 |
op_relation |
https://edepot.wur.nl/39652 https://research.wur.nl/en/publications/integrated-water-pollution-assessment-of-the-ebrié-lagoon-ivory-c doi:10.1016/j.jmarsys.2003.08.002 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
op_doi |
https://doi.org/10.1016/j.jmarsys.2003.08.002 |
container_title |
Journal of Marine Systems |
container_volume |
44 |
container_issue |
1-2 |
container_start_page |
1 |
op_container_end_page |
17 |
_version_ |
1789969803479351296 |