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Source apportionment of polycyclic aromatic hydrocarbons in sediments from polluted rivers

  • Stanley Moyo , Rob McCrindle , Ntebogeng Mokgalaka , Jan Myburgh and Munyaradzi Mujuru
Published/Copyright: August 27, 2013

Abstract

Over the past few decades, in response to growing concerns about the impact of polycyclic aromatic hydrocarbons (PAHs) on human health, a variety of environmental forensics and geochemical techniques have emerged for studying organic pollutants. These techniques include chemical fingerprinting, receptor modeling, and compound-specific stable isotope analysis (CSIA). Chemical fingerprinting methodology involves the use of diagnostic ratios. Receptor modeling techniques include the chemical mass balance (CMB) model and multivariate statistics. Multivariate techniques include factor analysis with multiple linear regression (FA/MLR), positive matrix factorization (PMF), and UNMIX. This article reviews applications of chemical fingerprinting, receptor modeling, and CSIA; comments on their uses; and contrasts the strengths and weaknesses of each methodology.

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Published Online: 2013-08-27
Published in Print: 2013-12-01

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