TY - JOUR
T1 - Problems in the fingerprints based polycyclic aromatic hydrocarbons source apportionment analysis and a practical solution
AU - Zou, Yonghong
AU - Wang, Lixia
AU - Christensen, Erik R.
PY - 2015
Y1 - 2015
N2 - This work intended to explain the challenges of the fingerprints based source apportionment method for polycyclic aromatic hydrocarbons (PAH) in the aquatic environment, and to illustrate a practical and robust solution. The PAH data detected in the sediment cores from the Illinois River provide the basis of this study. Principal component analysis (PCA) separates PAH compounds into two groups reflecting their possible airborne transport patterns; but it is not able to suggest specific sources. Not all positive matrix factorization (PMF) determined sources are distinguishable due to the variability of source fingerprints. However, they constitute useful suggestions for inputs for a Bayesian chemical mass balance (CMB) analysis. The Bayesian CMB analysis takes into account the measurement errors as well as the variations of source fingerprints, and provides a credible source apportionment. Major PAH sources for Illinois River sediments are traffic (35%), coke oven (24%), coal combustion (18%), and wood combustion (14%). 2015 Published by Elsevier Ltd.
AB - This work intended to explain the challenges of the fingerprints based source apportionment method for polycyclic aromatic hydrocarbons (PAH) in the aquatic environment, and to illustrate a practical and robust solution. The PAH data detected in the sediment cores from the Illinois River provide the basis of this study. Principal component analysis (PCA) separates PAH compounds into two groups reflecting their possible airborne transport patterns; but it is not able to suggest specific sources. Not all positive matrix factorization (PMF) determined sources are distinguishable due to the variability of source fingerprints. However, they constitute useful suggestions for inputs for a Bayesian chemical mass balance (CMB) analysis. The Bayesian CMB analysis takes into account the measurement errors as well as the variations of source fingerprints, and provides a credible source apportionment. Major PAH sources for Illinois River sediments are traffic (35%), coke oven (24%), coal combustion (18%), and wood combustion (14%). 2015 Published by Elsevier Ltd.
KW - ISTC
UR - http://dx.doi.org/10.1016/j.envpol.2015.05.029
U2 - 10.1016/j.envpol.2015.05.029
DO - 10.1016/j.envpol.2015.05.029
M3 - Article
C2 - 26208321
VL - 205
SP - 394
EP - 402
JO - Environmental Pollution
JF - Environmental Pollution
ER -