Citation
Law A.T., . and Fatimah Md Yusoff, . and Mohd Mohsin A.K., . Physical chemical and microbiological characteristics of Kelang River in the 1990s. pp. 117-129. ISSN 0025-1291
Abstract
The physical chemical and microbiological properties of Kelang River were studied and were compared with the levels reported in the 1970s taken at the same sampling stations. A clear decline of ammonium ortho-phosphate BOD5 total dissolved phosphorus and suspended particles concentrations as well as pH and temperature were found in water during the rainy seasons. This was clearly due to the dilution effect of the river water by the rain. A significant increase of dissolved oxygen level decrease of suspended particles and BOD5 concentrations were found in all the sampling stations as compared to that detected in the 1970s. These changes have encouraged the migration of fish from upstream to the downstream areas of the river because of the improvement of water quality. However the levels of chemical nutrients such as ammonium nirate nitrite and orthophosphate were much higher than that found in the 1980s. Similarly a significantly higher fecal coliform count was found in all the sampling stations. This indicates that although Kelang River seems to be cleaner in terms of siltation and presence of fish other chemical parameters are worse than before. The estimated annual fluxes of phosphorus nitrogen BOD5 petroleum hydrocarbons and suspended particles from the freshwater zone of Kelang River to the estuary and Straits of Malacca are 3 215 metric tonnes 28 992 metric tonnes 175 885 metric tonnes 2 058 metric tonnes and 2.06 millon metric tonnes respectively.
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Abstract
The physical chemical and microbiological properties of Kelang River were studied and were compared with the levels reported in the 1970s taken at the same sampling stations. A clear decline of ammonium ortho-phosphate BOD5 total dissolved phosphorus and suspended particles concentrations as well as pH and temperature were found in water during the rainy seasons. This was clearly due to the dilution effect of the river water by the rain. A significant increase of dissolved oxygen level decrease of suspended particles and BOD5 concentrations were found in all the sampling stations as compared to that detected in the 1970s. These changes have encouraged the migration of fish from upstream to the downstream areas of the river because of the improvement of water quality. However the levels of chemical nutrients such as ammonium nirate nitrite and orthophosphate were much higher than that found in the 1980s. Similarly a significantly higher fecal coliform count was found in all the sampling stations. This indicates that although Kelang River seems to be cleaner in terms of siltation and presence of fish other chemical parameters are worse than before. The estimated annual fluxes of phosphorus nitrogen BOD5 petroleum hydrocarbons and suspended particles from the freshwater zone of Kelang River to the estuary and Straits of Malacca are 3 215 metric tonnes 28 992 metric tonnes 175 885 metric tonnes 2 058 metric tonnes and 2.06 millon metric tonnes respectively.
Additional Metadata
| Item Type: | Article |
|---|---|
| Additional Information: | Summary (En) |
| AGROVOC Term: | RIVERS |
| AGROVOC Term: | CHEMICOPHYSICAL PROPERTIES |
| AGROVOC Term: | MEASUREMENT |
| AGROVOC Term: | POLLUTANT LOAD |
| AGROVOC Term: | AMMONIA |
| AGROVOC Term: | PHOSPHORUS |
| AGROVOC Term: | MALAYSIA CURSOS DE AGUA |
| AGROVOC Term: | PROPIEDADES FISICOQUIMICAS |
| AGROVOC Term: | MEDICION |
| AGROVOC Term: | CARGA CONTAMINANTE |
| Depositing User: | Ms. Norfaezah Khomsan |
| Last Modified: | 24 Apr 2025 05:52 |
| URI: | http://webagris.upm.edu.my/id/eprint/17434 |
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