Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia
In the present study, concentration, distribution and speciation of trace metals were conducted to assess the overall classification of Ni, Cu and Pb as well as their risk status in the surface sediments of Klang River. Sequential extraction technique (SET) was used to evaluate the four (exchangeabl...
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Format: | Article |
Language: | English |
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Thai Society of Higher Eduction Institutes on Environment
2012-01-01
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Series: | EnvironmentAsia |
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Online Access: | http://www.tshe.org/ea/pdf/vol5%20no1%20p17-25.pdf |
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author | Abolfazl Naji Ahmad Ismail |
author_facet | Abolfazl Naji Ahmad Ismail |
author_sort | Abolfazl Naji |
collection | DOAJ |
description | In the present study, concentration, distribution and speciation of trace metals were conducted to assess the overall classification of Ni, Cu and Pb as well as their risk status in the surface sediments of Klang River. Sequential extraction technique (SET) was used to evaluate the four (exchangeable, acid-reducible, oxidisable-organic and residual) fractions of the surface sediments. The total concentrations of metals ranged from 5.26 µg/g d.w. to 22.93µg/g d.w for Ni; 9.47-66.74 µg/g d.w. for Cu; and 24.78-62.35 µg/g d.w. for Pb. The fractionation of studied metals (except Cu) in most stations were in the order of residual > acid-reducible > oxidisable-organic > exchangeable. The degree of surface sediments contamination was computed for Risk Assessment Code (RAC), Individual Contamination Factors (ICF) and Global contamination factor (GCF). The result of this study showed that none of the metals studied had potential risk to fauna and flora of the Klang River systems. |
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institution | Directory Open Access Journal |
issn | 1906-1714 |
language | English |
last_indexed | 2024-04-13T04:52:03Z |
publishDate | 2012-01-01 |
publisher | Thai Society of Higher Eduction Institutes on Environment |
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series | EnvironmentAsia |
spelling | doaj.art-ee65246f14ef4758a486f7fe9bdcbd7b2022-12-22T03:01:38ZengThai Society of Higher Eduction Institutes on EnvironmentEnvironmentAsia1906-17142012-01-01511725Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, MalaysiaAbolfazl NajiAhmad IsmailIn the present study, concentration, distribution and speciation of trace metals were conducted to assess the overall classification of Ni, Cu and Pb as well as their risk status in the surface sediments of Klang River. Sequential extraction technique (SET) was used to evaluate the four (exchangeable, acid-reducible, oxidisable-organic and residual) fractions of the surface sediments. The total concentrations of metals ranged from 5.26 µg/g d.w. to 22.93µg/g d.w for Ni; 9.47-66.74 µg/g d.w. for Cu; and 24.78-62.35 µg/g d.w. for Pb. The fractionation of studied metals (except Cu) in most stations were in the order of residual > acid-reducible > oxidisable-organic > exchangeable. The degree of surface sediments contamination was computed for Risk Assessment Code (RAC), Individual Contamination Factors (ICF) and Global contamination factor (GCF). The result of this study showed that none of the metals studied had potential risk to fauna and flora of the Klang River systems.http://www.tshe.org/ea/pdf/vol5%20no1%20p17-25.pdfheavy metalsfractionationsurface sedimentrisk assessment code |
spellingShingle | Abolfazl Naji Ahmad Ismail Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia EnvironmentAsia heavy metals fractionation surface sediment risk assessment code |
title | Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia |
title_full | Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia |
title_fullStr | Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia |
title_full_unstemmed | Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia |
title_short | Metals Fractionation and Evaluation of their Risk Connected with Urban and Industrial Influx in the Klang River Surface Sediments, Malaysia |
title_sort | metals fractionation and evaluation of their risk connected with urban and industrial influx in the klang river surface sediments malaysia |
topic | heavy metals fractionation surface sediment risk assessment code |
url | http://www.tshe.org/ea/pdf/vol5%20no1%20p17-25.pdf |
work_keys_str_mv | AT abolfazlnaji metalsfractionationandevaluationoftheirriskconnectedwithurbanandindustrialinfluxintheklangriversurfacesedimentsmalaysia AT ahmadismail metalsfractionationandevaluationoftheirriskconnectedwithurbanandindustrialinfluxintheklangriversurfacesedimentsmalaysia |