Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia
This study applied the use of sequential extraction technique and simple bioaccessibility extraction test to quantify the bioavailable fractions and the human bioaccessible concentration of metals collected from nine stations in surface sediment of the Langat River. The concentrations of total and b...
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| Format: | Article |
| Language: | English |
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Springer
2017
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| Online Access: | http://psasir.upm.edu.my/id/eprint/54516/ http://psasir.upm.edu.my/id/eprint/54516/1/Estimation%20and%20influence%20of%20physicochemical%20properties%20and%20chemical%20fractions%20of%20surface%20sediment%20on%20the%20bioaccessibility%20.pdf |
| _version_ | 1848852566665854976 |
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| author | Kadhum, Safaa A. Ishak, Mohd Yusoff Zulkifli, Syaizwan Zahmir |
| author_facet | Kadhum, Safaa A. Ishak, Mohd Yusoff Zulkifli, Syaizwan Zahmir |
| author_sort | Kadhum, Safaa A. |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study applied the use of sequential extraction technique and simple bioaccessibility extraction test to quantify the bioavailable fractions and the human bioaccessible concentration of metals collected from nine stations in surface sediment of the Langat River. The concentrations of total and bioaccessible metals from different stations were in the range of 0.49–1.04, 0.10–0.32 μg g−1 for T-Cd, Bio-Cd, respectively, and 12.9–128.03, 2.06–8.53 μg kg−1 for T-Hg, Bio-Hg, respectively. The results revealed highest R-Bio-Cd in Banting station (55.3 %), while the highest R-Bio-Hg was in Kajang station (49.61 %). The chemical speciation of Cd in most sampling stations was in the order of oxidisable-organic > residual > exchangeable > acid-reducible, while speciation of Hg was in the order of exchangeable > residual > oxidisable-organic > acid-reducible. The correlation matric of mean content showed that the TOM, particle size and Mg++ in polluted surface sediments was highly correlated with total mercury. The PCA showed that the main factors influencing the bioaccessibility of Hg in surface sediments were the sediment TOM, F1 (EFLE) and F3 (oxidation-organic), while the fact |
| first_indexed | 2025-11-15T10:40:07Z |
| format | Article |
| id | upm-54516 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:40:07Z |
| publishDate | 2017 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-545162020-03-06T01:16:46Z http://psasir.upm.edu.my/id/eprint/54516/ Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia Kadhum, Safaa A. Ishak, Mohd Yusoff Zulkifli, Syaizwan Zahmir This study applied the use of sequential extraction technique and simple bioaccessibility extraction test to quantify the bioavailable fractions and the human bioaccessible concentration of metals collected from nine stations in surface sediment of the Langat River. The concentrations of total and bioaccessible metals from different stations were in the range of 0.49–1.04, 0.10–0.32 μg g−1 for T-Cd, Bio-Cd, respectively, and 12.9–128.03, 2.06–8.53 μg kg−1 for T-Hg, Bio-Hg, respectively. The results revealed highest R-Bio-Cd in Banting station (55.3 %), while the highest R-Bio-Hg was in Kajang station (49.61 %). The chemical speciation of Cd in most sampling stations was in the order of oxidisable-organic > residual > exchangeable > acid-reducible, while speciation of Hg was in the order of exchangeable > residual > oxidisable-organic > acid-reducible. The correlation matric of mean content showed that the TOM, particle size and Mg++ in polluted surface sediments was highly correlated with total mercury. The PCA showed that the main factors influencing the bioaccessibility of Hg in surface sediments were the sediment TOM, F1 (EFLE) and F3 (oxidation-organic), while the fact Springer 2017 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/54516/1/Estimation%20and%20influence%20of%20physicochemical%20properties%20and%20chemical%20fractions%20of%20surface%20sediment%20on%20the%20bioaccessibility%20.pdf Kadhum, Safaa A. and Ishak, Mohd Yusoff and Zulkifli, Syaizwan Zahmir (2017) Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia. Environmental Geochemistry and Health, 39. pp. 1145-1158. ISSN 0269-4042; ESSN: 1573-2983 https://link.springer.com/article/10.1007%2Fs10653-016-9883-4#citeas 10.1007/s10653-016-9883-4 |
| spellingShingle | Kadhum, Safaa A. Ishak, Mohd Yusoff Zulkifli, Syaizwan Zahmir Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title | Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title_full | Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title_fullStr | Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title_full_unstemmed | Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title_short | Estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of Cd and Hg contaminant in Langat River, Malaysia |
| title_sort | estimation and influence of physicochemical properties and chemical fractions of surface sediment on the bioaccessibility of cd and hg contaminant in langat river, malaysia |
| url | http://psasir.upm.edu.my/id/eprint/54516/ http://psasir.upm.edu.my/id/eprint/54516/ http://psasir.upm.edu.my/id/eprint/54516/ http://psasir.upm.edu.my/id/eprint/54516/1/Estimation%20and%20influence%20of%20physicochemical%20properties%20and%20chemical%20fractions%20of%20surface%20sediment%20on%20the%20bioaccessibility%20.pdf |