Aliphatic and aromatic hydrocarbons in different sized aerosols over the Mediterranean Sea: Occurrence and origin

Analysis of PAHs Associated with Particulate Matter PM2.5 in Two Places at the City of Cuernavaca, Morelos, México

“…Meanwhile the IP/(IP + BghiP) ratio obtained in this study was 0.5. Some previous studies that were done in other places have reported values between 0.18 and 0.40 corresponding to vehicle emissions, 0.56 corresponding to coal burning and 0.62 to wood combustion [21][22][23][24][25], indicating that in the study area coal burning is an important source. The Phe/(Ant + Phe) ratio was also estimated, giving a value of 0.52.…”

In-situ partitioning and bioconcentration of polycyclic aromatic hydrocarbons among water, suspended particulate matter, and fish in the Dongjiang and Pearl Rivers and the Pearl River Estuary, China

“…PAHs with molecular mass of 178 and 202 were commonly used to distinguish between combustion and petroleum sources (Budzinski et al, 1997;Gschwend and Hites, 1981;Sicre et al, 1987;Soclo et al, 2000). PAHs with molecular masses of 228 and 276 were also used as parent PAH indicators (Yunker et al, 2002).…”

Polycyclic aromatic hydrocarbons (PAHs) in the water column and sediment core of Deep Bay, South China

“…The sources of PAHs, whether from fuel combustion (pyrolytic) or from crude oil (petrogenic) contamination, may be identified by ratios of individual PAH compounds based on peculiarities in PAH composition and distribution pattern as a function of the emission source (Gschwend and Hites, 1981;Kennicutt and Comet, 1992). Ratios of phenanthrene to anthracene (Ph/An) and fluoranthene to pyrene (Fl/Py) have been widely used to distinguish petrogenic and pyrogenic sources of PAHs (Gschwend and Hites, 1981;Sicre et al, 1987;Yang, 2000;Yunker et al, 2002;Chen et al, 2006). PAHs of petrogenic origin are generally characterized by Ph/An values >10, whereas combustion processes often result in low Ph/An ratios (<10) (Wise et al, 1988;Benner et al, 1990).…”

“…PAHs of petrogenic origin are generally characterized by Ph/An values >10, whereas combustion processes often result in low Ph/An ratios (<10) (Wise et al, 1988;Benner et al, 1990). For the Fl/Py ratios, values greater than 1 have been used to indicate pyrolytic origins, and values less than 1 are attributed to petrogenic source (Sicre et al, 1987). In the present study, Ph/An ratios in surface and core sediment were basically less than 10, indicating pyrogenic sources of PAHs, whereas the low Fl/ Py ratio values (less than 1) may suggest petrogenic PAH input (Fig.…”