Source identification of petroleum hydrocarbons in soil and sediments from Igua莽u River Watershed, Paran谩, Brazil using the CHEMSIC method (CHEMometric analysis of Selected Ion Chromatograms)

详细信息	查看全文 | 推荐本文 |

• 作者：Fabiana D.C. Gallotta^a ; ^{fabianagallotta@petrobras.com.br} ; Jan H. Christensen^b ; ¹ ; ^{jch@life.ku.dk}
• 关键词：Polycyclic aromatic compounds (PACs) ; Biomarkers ; Petroleum hydrocarbons ; Source identification ; Chemometrics ; Iguaç ; u River
• 刊名：Journal of Chromatography A
• 出版年：2012
• 期刊代码：47_00219673
• 类别：ch
• 出版时间：27 April, 2012
• 卷：1235
• 期：Complete
• 页码：149-158
• 文件大小：1506 K

摘要

A chemometric method based on principal component analysis (PCA) of pre-processed and combined sections of selected ion chromatograms (SICs) is used to characterise the hydrocarbon profiles in soil and sediment from Arauc谩ria, Guajuvira, General L煤cio and Balsa Nova Municipalities (Igua莽u River Watershed, Paran谩, Brazil) and to indicate the main sources of hydrocarbon pollution. The study includes 38 SICs of polycyclic aromatic compounds (PACs) and four of petroleum biomarkers in two separate analyses. The most contaminated samples are inside the Presidente Get煤lio Vargas Refinery area. These samples represent a petrogenic pattern and different weathering degrees. Samples from outside the refinery area are either less or not contaminated, or contain mixtures of diagenetic, pyrogenic and petrogenic inputs where different proportions predominate. The locations farthest away from industrial activity (Balsa Nova) contains the lowest levels of PAC contamination. There are no evidences to conclude positive matches between the samples from outside the refinery area and the Cusiana spilled oil.