Concentrations and Source Identification of Polycyclic Aromatic Hydrocarbons (PAHs) and Polychlorinated Biphenyls (PCBs) in Agricultural, Urban/Residential, and Industrial Soils, East of Oran (Northwest Algeria)

被引:25
作者
Halfadji, Ahmed [1 ,2 ,3 ]
Touabet, Abdelkrim [1 ]
Portet-Koltalo, Florence [2 ]
Le Derf, Frank [2 ]
Merlet-Machour, Nadine [2 ]
机构
[1] USTHB, Fac Chem, Lab Organ Anal Funct LAOF, Bp 32 El Alia, Algiers 16111, Algeria
[2] Univ Rouen Normandy, Lab Organ & Bioorgan Chem React & Anal, COBRA UMR CNRS 6014, IUT Evreux, Evreux, France
[3] Univ Ibn Khaldoun Tiaret, Fac Appl Sci, Dept Sci & Technol, Tiaret, Algeria
关键词
Isomeric ratio; polycyclic aromatic hydrocarbons; polychlorinated biphenyls; principal component analysis; soil level contamination; source identification; PERSISTENT ORGANIC POLLUTANTS; SOURCE APPORTIONMENT; URBAN SOILS; ORGANOCHLORINE PESTICIDES; RIVER DELTA; AREA; DISTRIBUTIONS; ENVIRONMENT; CONTAMINATION; EXTRACTION;
D O I
10.1080/10406638.2017.1326947
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The aim of this study is to determine potential sources and concentrations of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in surface soils devoted to different land uses in northwest Algeria. Microwave-assisted extraction (MAE) and gas chromatography/mass spectrometry (GC-MS) methods were applied to quantify 16 PAHs and 7 PCB congeners in surface soils. The sum of the 16 US-EPA priority PAHs and the 7 European indicator PCBs ranged from 133.7 to 2068.0 ng g(-1) and from n.d. to 19.34 ng g(-1), respectively. PAHs with four to six fused rings were predominant in soils, and their concentrations ranged from 110.1 to 1768.0 ng g(-1). Principal component analysis (PCA) and isomeric ratios showed that pyrogenic processes and petrogenic contributions were the main sources of PAHs, while commercial mixtures of PCBs (Aroclor 1254 and 1260) were sources of PCBs in urban/residential and industrial sites. This is a first screening of data about PAHs and PCBs in soils around a Mediterranean city (Oran, North Africa), and a first step toward a better understanding of the impact of anthropogenic activities on land uses.
引用
收藏
页码:299 / 310
页数:12
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