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Role of black carbon in soil distribution of organochlorines in Lesser Himalayan Region of Pakistan

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Role of black carbon in soil distribution of organochlorines in Lesser Himalayan Region of Pakistan. / Ali, Usman; Riaz, Rahat; Sweetman, Andrew James; Jones, Kevin C.; Li, Jun; Zhang, Gan; Malik, Riffat Naseem.

In: Environmental Pollution, Vol. 236, 01.05.2018, p. 971-982.

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@article{e874592635f244fcbf11f2b0832da518,
title = "Role of black carbon in soil distribution of organochlorines in Lesser Himalayan Region of Pakistan",
abstract = "Black carbon and total organic carbon (TOC) along with organochlorines (OCs) were analyzed in soils from four sampling zones of Lesser Himalayan Region based on source proximity/anthropogenic influences along the altitude. CTO-375 method was used for BC analysis while OCs were analyzed by GC-MS/MS system. BC and TOC ranged between 0.16–1.77 and 6.8–41.3 mg g−1 while those of OCPs and PCBs ranged between 0.69 and 5.77 and 0.12–2.55 ng g−1, respectively. ∑DDTs were the dominant (87.9%) among OCPs while tri- and tetra- (65.5%) homologue groups among PCBs. Hexa-PCBs, however also showed higher contribution (20.4%) in the region. Source diagnostic ratios of DDE + DDD/DDT (0.1–1.53) indicated both fresh and old input while α-HCH/γ-HCH (0.19–2.49) showed presence of lindane in the region. Higher concentration of OCs were observed in Zone C at altitudinal range of 737–975 masl that are close to the human influences and potential sources of POPs. The results of linear regression analysis revealed potential input of BC in soil distribution of OC concentrations in the region. Black carbon's potential role in OCs distribution in soils of Lesser Himalaya.",
keywords = "Black carbon, CTO-375, GC-MS, Lesser Himalayan Region, OCPs, PCBs",
author = "Usman Ali and Rahat Riaz and Sweetman, {Andrew James} and Jones, {Kevin C.} and Jun Li and Gan Zhang and Malik, {Riffat Naseem}",
year = "2018",
month = may,
day = "1",
doi = "10.1016/j.envpol.2017.10.083",
language = "English",
volume = "236",
pages = "971--982",
journal = "Environmental Pollution",
issn = "0269-7491",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Role of black carbon in soil distribution of organochlorines in Lesser Himalayan Region of Pakistan

AU - Ali, Usman

AU - Riaz, Rahat

AU - Sweetman, Andrew James

AU - Jones, Kevin C.

AU - Li, Jun

AU - Zhang, Gan

AU - Malik, Riffat Naseem

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Black carbon and total organic carbon (TOC) along with organochlorines (OCs) were analyzed in soils from four sampling zones of Lesser Himalayan Region based on source proximity/anthropogenic influences along the altitude. CTO-375 method was used for BC analysis while OCs were analyzed by GC-MS/MS system. BC and TOC ranged between 0.16–1.77 and 6.8–41.3 mg g−1 while those of OCPs and PCBs ranged between 0.69 and 5.77 and 0.12–2.55 ng g−1, respectively. ∑DDTs were the dominant (87.9%) among OCPs while tri- and tetra- (65.5%) homologue groups among PCBs. Hexa-PCBs, however also showed higher contribution (20.4%) in the region. Source diagnostic ratios of DDE + DDD/DDT (0.1–1.53) indicated both fresh and old input while α-HCH/γ-HCH (0.19–2.49) showed presence of lindane in the region. Higher concentration of OCs were observed in Zone C at altitudinal range of 737–975 masl that are close to the human influences and potential sources of POPs. The results of linear regression analysis revealed potential input of BC in soil distribution of OC concentrations in the region. Black carbon's potential role in OCs distribution in soils of Lesser Himalaya.

AB - Black carbon and total organic carbon (TOC) along with organochlorines (OCs) were analyzed in soils from four sampling zones of Lesser Himalayan Region based on source proximity/anthropogenic influences along the altitude. CTO-375 method was used for BC analysis while OCs were analyzed by GC-MS/MS system. BC and TOC ranged between 0.16–1.77 and 6.8–41.3 mg g−1 while those of OCPs and PCBs ranged between 0.69 and 5.77 and 0.12–2.55 ng g−1, respectively. ∑DDTs were the dominant (87.9%) among OCPs while tri- and tetra- (65.5%) homologue groups among PCBs. Hexa-PCBs, however also showed higher contribution (20.4%) in the region. Source diagnostic ratios of DDE + DDD/DDT (0.1–1.53) indicated both fresh and old input while α-HCH/γ-HCH (0.19–2.49) showed presence of lindane in the region. Higher concentration of OCs were observed in Zone C at altitudinal range of 737–975 masl that are close to the human influences and potential sources of POPs. The results of linear regression analysis revealed potential input of BC in soil distribution of OC concentrations in the region. Black carbon's potential role in OCs distribution in soils of Lesser Himalaya.

KW - Black carbon

KW - CTO-375

KW - GC-MS

KW - Lesser Himalayan Region

KW - OCPs

KW - PCBs

U2 - 10.1016/j.envpol.2017.10.083

DO - 10.1016/j.envpol.2017.10.083

M3 - Journal article

C2 - 29153728

AN - SCOPUS:85034417655

VL - 236

SP - 971

EP - 982

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

ER -