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Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin

Johor Strait is an economically important freshwater system in the southern portion of Peninsular Malaysia. In past decades, Johor has been experiencing rapid developments especially in industrialisation, urbanisation and agricultural activities which have impacted the quality of Johor river. This s...

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Main Authors: L S Mazilamani, K V Annammala, Anand Nainar, M Z M Najib
Format: Article
Language:English
Published: IOP Publishing Ltd 2020
Subjects:
GB1201-1598 Rivers. Stream measurements
GE170-190 Environmental policy
Online Access:https://eprints.ums.edu.my/id/eprint/42702/1/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42702/
https://doi.org/10.1088/1757-899X/736/7/072005
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spelling my.ums.eprints.427022025-01-20T05:51:57Z https://eprints.ums.edu.my/id/eprint/42702/ Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin L S Mazilamani K V Annammala Anand Nainar M Z M Najib GB1201-1598 Rivers. Stream measurements GE170-190 Environmental policy Johor Strait is an economically important freshwater system in the southern portion of Peninsular Malaysia. In past decades, Johor has been experiencing rapid developments especially in industrialisation, urbanisation and agricultural activities which have impacted the quality of Johor river. This study focused on identifying the intensity and degree of sediment contamination by trace elements from different anthropogenic sources using the multiple Risk Indexes. Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) was used to detect trace element concentrations from nine sampling stations. The overall ranges for metals are 0.35- 4.25, 505.86-1864.56, below detection limit (BDL)-5.37, 0.02-0.07, 0.02-0.17, 0.59-2.05, BDL-5.35, 247.07-1010.23, 0.71-9.62, 1.08-5.68 and 10.87-21.15 mg/kg for Ag, Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, and Zn respectively. The mean concentrations of trace elements follow the order: Al > Fe > Zn > Cu > Mn > Ni > Ag > Cr > As > Co > Cd. In this study, high concentrations of most elements (Al, As, Cd, Co, Fe, Mn, and Ni) were recorded at SS5 as the station is located near the Kota Tinggi city. Comparison with the sediment quality guidelines (SQGs) portrayed that concentrations of As, Cd, Cr, Cu, Ni, and Zn were below the Threshold Effects Level (TEL), Severity Effects Level (SEL), Probable Effects level (PEL) values in all sampling stations. The Pollution Load Index (PLI) that ranged between 0.151 and 0.389 (PL1 < 1) indicates that the Johor river sediments are free of trace element contamination. Potential Ecological Risk Index (RI), and Potential Ecological Risk Factor (Er) were in the range of 3.018-11.823 (RI < 150) and 0.103-7.141 (Er <40) respectively, which indicate that trace elements in Johor river pose no adverse effects on aquatic biota. The Pearson’s correlation matrix showed a good positive correlation between Al and As (0.546), Co (0.595), Fe (0.440), Mn (0.770), and Ni (0.496), representing similar sources of pollution. The cluster analysis indicates that Al, Mn, As, Ni, Fe, Cd, and Co originated from natural processes while Cr, C, Ag, and Zn are mainly from anthropogenic sources. Suggesting that man-made activities are accelerating sedimentation rate and washing down the pollutants together to the adjacent water bodies. Tracing the origin of the elements and planning for target mitigation to reduce further deterioration to the receiving river system could be the next mode of action. IOP Publishing Ltd 2020 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42702/1/FULL%20TEXT.pdf L S Mazilamani and K V Annammala and Anand Nainar and M Z M Najib (2020) Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin. Energy Security and Chemical Engineering Congress, 736. pp. 1-11. https://doi.org/10.1088/1757-899X/736/7/072005
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
topic GB1201-1598 Rivers. Stream measurements
GE170-190 Environmental policy
spellingShingle GB1201-1598 Rivers. Stream measurements
GE170-190 Environmental policy
L S Mazilamani
K V Annammala
Anand Nainar
M Z M Najib
Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
description Johor Strait is an economically important freshwater system in the southern portion of Peninsular Malaysia. In past decades, Johor has been experiencing rapid developments especially in industrialisation, urbanisation and agricultural activities which have impacted the quality of Johor river. This study focused on identifying the intensity and degree of sediment contamination by trace elements from different anthropogenic sources using the multiple Risk Indexes. Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) was used to detect trace element concentrations from nine sampling stations. The overall ranges for metals are 0.35- 4.25, 505.86-1864.56, below detection limit (BDL)-5.37, 0.02-0.07, 0.02-0.17, 0.59-2.05, BDL-5.35, 247.07-1010.23, 0.71-9.62, 1.08-5.68 and 10.87-21.15 mg/kg for Ag, Al, As, Cd, Co, Cr, Cu, Fe, Mn, Ni, and Zn respectively. The mean concentrations of trace elements follow the order: Al > Fe > Zn > Cu > Mn > Ni > Ag > Cr > As > Co > Cd. In this study, high concentrations of most elements (Al, As, Cd, Co, Fe, Mn, and Ni) were recorded at SS5 as the station is located near the Kota Tinggi city. Comparison with the sediment quality guidelines (SQGs) portrayed that concentrations of As, Cd, Cr, Cu, Ni, and Zn were below the Threshold Effects Level (TEL), Severity Effects Level (SEL), Probable Effects level (PEL) values in all sampling stations. The Pollution Load Index (PLI) that ranged between 0.151 and 0.389 (PL1 < 1) indicates that the Johor river sediments are free of trace element contamination. Potential Ecological Risk Index (RI), and Potential Ecological Risk Factor (Er) were in the range of 3.018-11.823 (RI < 150) and 0.103-7.141 (Er <40) respectively, which indicate that trace elements in Johor river pose no adverse effects on aquatic biota. The Pearson’s correlation matrix showed a good positive correlation between Al and As (0.546), Co (0.595), Fe (0.440), Mn (0.770), and Ni (0.496), representing similar sources of pollution. The cluster analysis indicates that Al, Mn, As, Ni, Fe, Cd, and Co originated from natural processes while Cr, C, Ag, and Zn are mainly from anthropogenic sources. Suggesting that man-made activities are accelerating sedimentation rate and washing down the pollutants together to the adjacent water bodies. Tracing the origin of the elements and planning for target mitigation to reduce further deterioration to the receiving river system could be the next mode of action.
format Article
author L S Mazilamani
K V Annammala
Anand Nainar
M Z M Najib
author_facet L S Mazilamani
K V Annammala
Anand Nainar
M Z M Najib
author_sort L S Mazilamani
title Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
title_short Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
title_full Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
title_fullStr Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
title_full_unstemmed Trace element concentrations in fine sediment and linkages to non-point pollution source: Lower Johor river basin
title_sort trace element concentrations in fine sediment and linkages to non-point pollution source: lower johor river basin
publisher IOP Publishing Ltd
publishDate 2020
url https://eprints.ums.edu.my/id/eprint/42702/1/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42702/
https://doi.org/10.1088/1757-899X/736/7/072005
_version_ 1823092349893345280
score 13.244413

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