Assessing the relationship and influence of black carbon on distribution status of organochlorines in the coastal sediments from Pakistan

被引：48

作者：

Ali, Usman ^{[1
]}

Syed, Jabir Hussain ^{[2
,3
]}

Liu Junwen ^{[3
]}

Sanchez-Garcia, Laura ^{[4
]}

Malik, Riffat Naseem ^{[2
]}

Chaudhry, Muhammad Jamshed Iqbal ^{[2
]}

Arshad, Masood ^{[5
]}

Li, Jun ^{[3
]}

Zhang, Gan ^{[3
]}

Jones, Kevin C. ^{[6
]}

机构：

[1] Quaid I Azam Univ, Dept Environm Sci, Environm Biol & Ecotoxicol Lab, Islamabad 45320, Pakistan

[2] Quaid I Azam Univ, Dept Plant Sci, Environm Biol Lab, Islamabad 45320, Pakistan

[3] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China

[4] Univ Zaragoza, Inst Environm Sci Aragon IUCA, E-50009 Zaragoza, Spain

[5] WWF Pakistan, Lahore 54600, Pakistan

[6] Univ Lancaster, Lancaster Environm Ctr, Ctr Chem Management, Lancaster LA1 4YQ, England

来源：

ENVIRONMENTAL POLLUTION | 2014年 / 190卷

关键词：

Organochlorines; Black carbon; Distribution status; Mass inventories; Coastal sediments; Pakistan; POLYCYCLIC AROMATIC-HYDROCARBONS; POLYCHLORINATED-BIPHENYLS PCBS; PEARL RIVER ESTUARY; SURFACE SEDIMENTS; PESTICIDES OCPS; ORGANIC CONTAMINANTS; RESIDUES; SEA; SORPTION; GULF;

D O I：

10.1016/j.envpol.2014.03.024

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Levels of total organic carbon (TOC) and black carbon (BC) were determined together with those of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in the selected eighteen coastal sites (n = 285) along the Arabian Sea from Pakistan. Results showed that the total concentration of TOC, BC, Sigma OCPs and Sigma(26)PCBs ranged between 0.3 and 2.9% dw, 0.1-0.2% dw, 0.9-110 ng g(-1) dw and 6.2-1200 ng g(-1) dw, respectively. Correlation analysis of BC (r = 0.26-0.89) and TOC (r = 0.06-0.69) revealed a stronger association with studied compounds. The sedimentary depositional fluxes (D) for Sigma OCPs and Sigma(26)PCBs were calculated as 1.7 and 4.9 tons yr(-1), respectively. In the coastal belt of Pakistan, sedimentary mass inventories (I) indicated the presence of 13 and 37 metric tons of Sigma OCPs and Sigma(26)PCBs, respectively. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：82 / 90

页数：9

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