Assessing the combined influence of TOC and black carbon in soil-air partitioning of PBDEs and DPs from the Indus River Basin, Pakistan

被引：45
作者：
Ali, Usman [1 ]
Mahmood, Adeel [2 ]
Syed, Jabir Hussain [2 ]
Li, Jun [2 ]
Zhang, Gan [2 ]
Katsoyiannis, Athanasios [3 ]
Jones, Kevin C. [4 ]
Malik, Riffat Naseem [1 ]
机构：
[1] Quaid I Azam Univ, Environm Biol & Ecotoxicol Lab, Dept Environm Sci, Fac Biol Sci, Islamabad 45320, Pakistan
[2] Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Guangdong, Peoples R China
[3] NILU FRAM High North Res Ctr Climate & Environm, NO-9296 Tromso, Norway
[4] Univ Lancaster, Ctr Chem Management, Lancaster Environm Ctr, Lancaster LA1 4YQ, England
来源：
ENVIRONMENTAL POLLUTION | 2015年 / 201卷
基金：
英国自然环境研究理事会;
关键词：
PBDEs/DPs; Soil-air partition model; Sorption; Octanol-air partition coefficient; Black carbon-air partition coefficient; Indus River Basin; Pakistan; POLYBROMINATED DIPHENYL ETHERS; BROMINATED FLAME RETARDANTS; POLYCYCLIC AROMATIC-HYDROCARBONS; PERSISTENT ORGANIC POLLUTANTS; EUROPEAN BACKGROUND SOILS; DECHLORANE PLUS; ORGANOCHLORINE PESTICIDES; GREAT-LAKES; SOOT CARBON; EXCHANGE;
D O I：
10.1016/j.envpol.2015.02.035
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 polybrominated diphenyl ethers (PBDEs) and dechlorane plus (DPs) were investigated in the Indus River Basin from Pakistan. Concentrations of Sigma PBDEs and Sigma DPs were ranged between 0.05 and 2.38 and 0.002-0.53 ng g(-1) in the surface soils while 1.43-22.1 and 0.19-7.59 pg m(-3) in the passive air samples, respectively. Black carbon (f(BC)) and total organic carbon (f(TOC)) fractions were also measured and ranged between 0.73 and 1.75 and 0.04-0.2%, respectively. The statistical analysis revealed strong influence of f(BC) than f(TOC) on the distribution of PBDEs and DPs in the Indus River Basin soils. BDE's congener profile suggested the input of penta-bromodiphenylether (DE-71) commercial formulation in the study area. Soil-air partitioning of PBDEs were investigated by employing octanol-air partition coefficients (K-OA) and black carbon-air partition coefficients (KBC-A). The results of both models suggested the combined influence of total organic carbon (absorption) and black carbon (adsorption) in the studied area. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：131 / 140
页数：10
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