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Status, distribution and ecological risk of organochlorines (OCs) in the surface sediments from the Ravi River, Pakistan

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Status, distribution and ecological risk of organochlorines (OCs) in the surface sediments from the Ravi River, Pakistan. / Syed, Jabir Hussain; Malik, Riffat Naseem; Li, Jun et al.

In: Science of the Total Environment, Vol. 472, 15.02.2014, p. 204-211.

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Syed JH, Malik RN, Li J, Chaemfa C, Zhang G, Jones KC. Status, distribution and ecological risk of organochlorines (OCs) in the surface sediments from the Ravi River, Pakistan. Science of the Total Environment. 2014 Feb 15;472:204-211. doi: 10.1016/j.scitotenv.2013.10.109

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@article{ad75236d90c147d896d19f8f7a2388f6,
title = "Status, distribution and ecological risk of organochlorines (OCs) in the surface sediments from the Ravi River, Pakistan",
abstract = "Organochlorines (OCs) including organochlorine pesticides (OCPs) and polychlorinated biphenyl (PCBs) were analyzed in surface sediments from the Ravi River, Punjab, Pakistan. Among the OCPs, hexachlorocyclohexane (HCHs), dichlorodiphenyltrichloroethane (DDTs) and chlordane (cis- and trans-) were most abundant and their concentrations were ranged from n.d to 16.0 ng g(-1), 1.5 to 58.5 ng g(-1) and n.d to 29.0 ng g(-1), respectively. Concentrations of Σ31PCBs ranged from 4.6 to 424.3 ng g(-1) with a mean value of 48.9 ng g(-1). In general, the concentrations of all studied organochlorines (OCs) in sediments collected from the sampling sites in the vicinity of industrial areas were higher than those from the agricultural areas. Compositional analyses of PCBs indicated that penta- and tetra-PCBs homologues were dominant which was consistent with the previous studies. Compared with other areas around the world, levels of OCs in sediments from the Ravi River were within the range, but were found to be much higher than previously reported from Pakistan. According to established sediment quality guidelines (SQGs), screening-level risk assessment of OCPs and PCBs suggested that they have a potential for adverse effects on benthic organisms.",
keywords = "Organochlorines, Surface sediments , Spatial distribution , Potential sources , Risk assessment , Ravi River",
author = "Syed, {Jabir Hussain} and Malik, {Riffat Naseem} and Jun Li and Chakra Chaemfa and Gan Zhang and Jones, {Kevin C.}",
year = "2014",
month = feb,
day = "15",
doi = "10.1016/j.scitotenv.2013.10.109",
language = "English",
volume = "472",
pages = "204--211",
journal = "Science of the Total Environment",
issn = "0048-9697",
publisher = "Elsevier Science B.V.",

}

RIS

TY - JOUR

T1 - Status, distribution and ecological risk of organochlorines (OCs) in the surface sediments from the Ravi River, Pakistan

AU - Syed, Jabir Hussain

AU - Malik, Riffat Naseem

AU - Li, Jun

AU - Chaemfa, Chakra

AU - Zhang, Gan

AU - Jones, Kevin C.

PY - 2014/2/15

Y1 - 2014/2/15

N2 - Organochlorines (OCs) including organochlorine pesticides (OCPs) and polychlorinated biphenyl (PCBs) were analyzed in surface sediments from the Ravi River, Punjab, Pakistan. Among the OCPs, hexachlorocyclohexane (HCHs), dichlorodiphenyltrichloroethane (DDTs) and chlordane (cis- and trans-) were most abundant and their concentrations were ranged from n.d to 16.0 ng g(-1), 1.5 to 58.5 ng g(-1) and n.d to 29.0 ng g(-1), respectively. Concentrations of Σ31PCBs ranged from 4.6 to 424.3 ng g(-1) with a mean value of 48.9 ng g(-1). In general, the concentrations of all studied organochlorines (OCs) in sediments collected from the sampling sites in the vicinity of industrial areas were higher than those from the agricultural areas. Compositional analyses of PCBs indicated that penta- and tetra-PCBs homologues were dominant which was consistent with the previous studies. Compared with other areas around the world, levels of OCs in sediments from the Ravi River were within the range, but were found to be much higher than previously reported from Pakistan. According to established sediment quality guidelines (SQGs), screening-level risk assessment of OCPs and PCBs suggested that they have a potential for adverse effects on benthic organisms.

AB - Organochlorines (OCs) including organochlorine pesticides (OCPs) and polychlorinated biphenyl (PCBs) were analyzed in surface sediments from the Ravi River, Punjab, Pakistan. Among the OCPs, hexachlorocyclohexane (HCHs), dichlorodiphenyltrichloroethane (DDTs) and chlordane (cis- and trans-) were most abundant and their concentrations were ranged from n.d to 16.0 ng g(-1), 1.5 to 58.5 ng g(-1) and n.d to 29.0 ng g(-1), respectively. Concentrations of Σ31PCBs ranged from 4.6 to 424.3 ng g(-1) with a mean value of 48.9 ng g(-1). In general, the concentrations of all studied organochlorines (OCs) in sediments collected from the sampling sites in the vicinity of industrial areas were higher than those from the agricultural areas. Compositional analyses of PCBs indicated that penta- and tetra-PCBs homologues were dominant which was consistent with the previous studies. Compared with other areas around the world, levels of OCs in sediments from the Ravi River were within the range, but were found to be much higher than previously reported from Pakistan. According to established sediment quality guidelines (SQGs), screening-level risk assessment of OCPs and PCBs suggested that they have a potential for adverse effects on benthic organisms.

KW - Organochlorines

KW - Surface sediments

KW - Spatial distribution

KW - Potential sources

KW - Risk assessment

KW - Ravi River

U2 - 10.1016/j.scitotenv.2013.10.109

DO - 10.1016/j.scitotenv.2013.10.109

M3 - Journal article

C2 - 24291563

VL - 472

SP - 204

EP - 211

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

ER -