Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water
Large areas of abandoned tin-mining pools have found secondary uses which provide natural habitats for aquaculture activities where most freshwater fishes are bred. Soils from tin-mining areas are rich in uranium and thorium. A study has been conducted on the status of waters and aquatic habitats in...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Science
2001
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| Online Access: | http://eprints.utm.my/79/ http://eprints.utm.my/79/1/AMYusof_1.pdf |
| _version_ | 1848889842450038784 |
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| author | Mohd Yusof, Aminah Mahat, M. N. Omar, N. Wood, A. K. H. |
| author_facet | Mohd Yusof, Aminah Mahat, M. N. Omar, N. Wood, A. K. H. |
| author_sort | Mohd Yusof, Aminah |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Large areas of abandoned tin-mining pools have found secondary uses which provide natural habitats for aquaculture activities where most freshwater fishes are bred. Soils from tin-mining areas are rich in uranium and thorium. A study has been conducted on the status of waters and aquatic habitats in disused tin-mining pools and at water intake points for public drinking water supply to assess the presence of natural radionuclides and arsenic which are potential health hazards. The concentrations of uranium and thorium were determined by gamma spectrometry. Arsenic species were preconcentrated with ammonium pyrrolidinedithiocarbamate in chloroform and were later irradiated in a neutron flux of 5.1×1012 n cm−2 s−1 of a TRIGA Mk.II nuclear reactor to induce radioactivity due to the 76As radionuclide. The concentrations of uranium were found to be relatively lower than thorium whereas the As(III) species have almost similar concentrations with the oxidized form of As(V). The determination of radium from water samples taken from water intake points as well as treated water was done by co-precipitation separation with mixed barium carrier followed by reprecipitation using sulphuric acid. Results obtained showed that the average concentration of 226Ra for raw water is 3.34 pCi l−1 compared to about 0.89 pCi l−1 for treated water samples. These figures are well below the maximum permissible level of 5 pCi l−1 for drinking water. |
| first_indexed | 2025-11-15T20:32:36Z |
| format | Article |
| id | utm-79 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T20:32:36Z |
| publishDate | 2001 |
| publisher | Elsevier Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-792010-06-01T02:40:04Z http://eprints.utm.my/79/ Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water Mohd Yusof, Aminah Mahat, M. N. Omar, N. Wood, A. K. H. TA Engineering (General). Civil engineering (General) Large areas of abandoned tin-mining pools have found secondary uses which provide natural habitats for aquaculture activities where most freshwater fishes are bred. Soils from tin-mining areas are rich in uranium and thorium. A study has been conducted on the status of waters and aquatic habitats in disused tin-mining pools and at water intake points for public drinking water supply to assess the presence of natural radionuclides and arsenic which are potential health hazards. The concentrations of uranium and thorium were determined by gamma spectrometry. Arsenic species were preconcentrated with ammonium pyrrolidinedithiocarbamate in chloroform and were later irradiated in a neutron flux of 5.1×1012 n cm−2 s−1 of a TRIGA Mk.II nuclear reactor to induce radioactivity due to the 76As radionuclide. The concentrations of uranium were found to be relatively lower than thorium whereas the As(III) species have almost similar concentrations with the oxidized form of As(V). The determination of radium from water samples taken from water intake points as well as treated water was done by co-precipitation separation with mixed barium carrier followed by reprecipitation using sulphuric acid. Results obtained showed that the average concentration of 226Ra for raw water is 3.34 pCi l−1 compared to about 0.89 pCi l−1 for treated water samples. These figures are well below the maximum permissible level of 5 pCi l−1 for drinking water. Elsevier Science 2001-01 Article PeerReviewed application/pdf en http://eprints.utm.my/79/1/AMYusof_1.pdf Mohd Yusof, Aminah and Mahat, M. N. and Omar, N. and Wood, A. K. H. (2001) Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water. Ecological engineering, 16 (3). pp. 405-414. http://dx.doi.org/10.1016/S0925-8574(00)00124-5 10.1016/S0925-8574(00)00124-5 |
| spellingShingle | TA Engineering (General). Civil engineering (General) Mohd Yusof, Aminah Mahat, M. N. Omar, N. Wood, A. K. H. Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title | Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title_full | Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title_fullStr | Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title_full_unstemmed | Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title_short | Water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| title_sort | water quality studies in an aquatic environment of disused tin-mining pools and in drinking water |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://eprints.utm.my/79/ http://eprints.utm.my/79/ http://eprints.utm.my/79/ http://eprints.utm.my/79/1/AMYusof_1.pdf |