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Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan

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Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan. / Ali, Usman; Bajwa, Anam; Chaudhry, Muhammad Jamshed Iqbal; Mahmood, Adeel; Syed, Jabir Hussain; Li, Jun; Zhang, Gan; Jones, Kevin Christopher; Malik, Riffat Naseem.

In: Ecotoxicology and Environmental Safety, Vol. 126, 04.2016, p. 177-185.

Research output: Contribution to journalJournal article

Harvard

Ali, U, Bajwa, A, Chaudhry, MJI, Mahmood, A, Syed, JH, Li, J, Zhang, G, Jones, KC & Malik, RN 2016, 'Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan', Ecotoxicology and Environmental Safety, vol. 126, pp. 177-185. https://doi.org/10.1016/j.ecoenv.2015.12.024

APA

Ali, U., Bajwa, A., Chaudhry, M. J. I., Mahmood, A., Syed, J. H., Li, J., Zhang, G., Jones, K. C., & Malik, R. N. (2016). Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan. Ecotoxicology and Environmental Safety, 126, 177-185. https://doi.org/10.1016/j.ecoenv.2015.12.024

Vancouver

Ali U, Bajwa A, Chaudhry MJI, Mahmood A, Syed JH, Li J et al. Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan. Ecotoxicology and Environmental Safety. 2016 Apr;126:177-185. https://doi.org/10.1016/j.ecoenv.2015.12.024

Author

Ali, Usman ; Bajwa, Anam ; Chaudhry, Muhammad Jamshed Iqbal ; Mahmood, Adeel ; Syed, Jabir Hussain ; Li, Jun ; Zhang, Gan ; Jones, Kevin Christopher ; Malik, Riffat Naseem. / Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan. In: Ecotoxicology and Environmental Safety. 2016 ; Vol. 126. pp. 177-185.

Bibtex

@article{d139ab359f564b859dc748d8f8d32dc6,
title = "Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan",
abstract = "This study was conducted with the aim of assessing the levels and black carbon mediated sediment–water partitioning of organochlorine pesticides (OCPs) from the Indus River. ∑OCPs ranged between 52−285 ng L−1 and 5.6–29.2 ng g−1 in water and sediment samples respectively. However, the ranges of sedimentary fraction of total organic carbon (fTOC) and black carbon (fBC) were 0.82–2.26% and 0.04–0.5% respectively. Spatially, OCPs concentrations were higher at upstream sites as compared to downstream sites. Source diagnostic ratios indicated the technical usage of HCH (α-HCH/γ-HCH>4) and significant presence of DDT metabolites with fresh inputs into the Indus River as indicated by the ratios of (DDE+DDD)/∑DDTs (0.27–0.96). The partitioning of OCPs between the sediments and water can be explained by two carbon Freundlich adsorption model which included both organic carbon and black carbon pools as partitioning media.",
keywords = "Black carbon, Two carbon Freundlich model, OCPs, Adsorption, Sediment–water partitioning, Indus River",
author = "Usman Ali and Anam Bajwa and Chaudhry, {Muhammad Jamshed Iqbal} and Adeel Mahmood and Syed, {Jabir Hussain} and Jun Li and Gan Zhang and Jones, {Kevin Christopher} and Malik, {Riffat Naseem}",
year = "2016",
month = apr
doi = "10.1016/j.ecoenv.2015.12.024",
language = "English",
volume = "126",
pages = "177--185",
journal = "Ecotoxicology and Environmental Safety",
issn = "0147-6513",
publisher = "Academic Press Inc.",

}

RIS

TY - JOUR

T1 - Significance of black carbon in the sediment–water partitioning of organochlorine pesticides (OCPs) in the Indus River, Pakistan

AU - Ali, Usman

AU - Bajwa, Anam

AU - Chaudhry, Muhammad Jamshed Iqbal

AU - Mahmood, Adeel

AU - Syed, Jabir Hussain

AU - Li, Jun

AU - Zhang, Gan

AU - Jones, Kevin Christopher

AU - Malik, Riffat Naseem

PY - 2016/4

Y1 - 2016/4

N2 - This study was conducted with the aim of assessing the levels and black carbon mediated sediment–water partitioning of organochlorine pesticides (OCPs) from the Indus River. ∑OCPs ranged between 52−285 ng L−1 and 5.6–29.2 ng g−1 in water and sediment samples respectively. However, the ranges of sedimentary fraction of total organic carbon (fTOC) and black carbon (fBC) were 0.82–2.26% and 0.04–0.5% respectively. Spatially, OCPs concentrations were higher at upstream sites as compared to downstream sites. Source diagnostic ratios indicated the technical usage of HCH (α-HCH/γ-HCH>4) and significant presence of DDT metabolites with fresh inputs into the Indus River as indicated by the ratios of (DDE+DDD)/∑DDTs (0.27–0.96). The partitioning of OCPs between the sediments and water can be explained by two carbon Freundlich adsorption model which included both organic carbon and black carbon pools as partitioning media.

AB - This study was conducted with the aim of assessing the levels and black carbon mediated sediment–water partitioning of organochlorine pesticides (OCPs) from the Indus River. ∑OCPs ranged between 52−285 ng L−1 and 5.6–29.2 ng g−1 in water and sediment samples respectively. However, the ranges of sedimentary fraction of total organic carbon (fTOC) and black carbon (fBC) were 0.82–2.26% and 0.04–0.5% respectively. Spatially, OCPs concentrations were higher at upstream sites as compared to downstream sites. Source diagnostic ratios indicated the technical usage of HCH (α-HCH/γ-HCH>4) and significant presence of DDT metabolites with fresh inputs into the Indus River as indicated by the ratios of (DDE+DDD)/∑DDTs (0.27–0.96). The partitioning of OCPs between the sediments and water can be explained by two carbon Freundlich adsorption model which included both organic carbon and black carbon pools as partitioning media.

KW - Black carbon

KW - Two carbon Freundlich model

KW - OCPs

KW - Adsorption

KW - Sediment–water partitioning

KW - Indus River

U2 - 10.1016/j.ecoenv.2015.12.024

DO - 10.1016/j.ecoenv.2015.12.024

M3 - Journal article

VL - 126

SP - 177

EP - 185

JO - Ecotoxicology and Environmental Safety

JF - Ecotoxicology and Environmental Safety

SN - 0147-6513

ER -