Sources and distribution of aliphatic and polyaromatic hydrocarbons in coastal sediments from the Ushuaia Bay (Tierra del Fuego, Patagonia, Argentina)

Distributions and sources of petroleum, aliphatic hydrocarbons and polycyclic aromatic hydrocarbons (PAHs) in surface sediments from Bohai Bay and its adjacent river, China

“…8) with low Pr/Ph values (0.77 ± 0.16), suggesting predominant petrogenic sources rather than biogenic (zooplanktons and/or marine animals). For recent sediments, the ratios Pr/n-C 17 and Ph/n-C 18 lower than 1 indicate a relatively recent oil input, while values higher than 1 of these indices coupled with high concentrations of hydrocarbons suggest the presence of degraded oil products (Mille et al, 2007;Commendatore et al, 2012). For most stations, low ratio values of Pr/n-C 17 and Ph/n-C 18 were found which confirms a recent pollution of oil inputs (Fig.…”

“…Among the organic contaminants, aliphatic and polycyclic aromatic hydrocarbons (PAHs) have received much attention due to their ubiquitous distribution in marine sediments (e.g. Sultan and Sameer, 1997;Zanardi et al, 1999;Wang et al, 2006;Liu et al, 2009;Yang et al, 2009;Commendatore et al, 2012;Kanzari et al, 2014). There are several reports on the environmental aspects of Bohai: seawater (Hu et al, 2005), sediment (Ma et al, 2001;Hu et al, 2009) and biota (Zhou et al, 2007).…”

Characterisation of the dynamics of organic contaminants ( n -alkanes, PAHs and PCBs) in a coastal area

“…Surprisingly, in this study, compounds were found in the classes with a high percentage of small particles, i.e., b 63 μm. Additionally, several authors (Neşer et al, 2012;Commendatore et al, 2012) reported that subtidal sediments correspond with sediments that shows particle similarity with class fraction D and/or E, which in the end favoured the accumulation of HMW due to their increased particle sorption affinity and resistance to degradation.…”

“…Moreover, to describe PAHs' characteristics in relation with settling velocity classes, we used four diagnostic compound ratios that are widely used to differentiate PAH sources (Yunker et al, 2002;Commendatore et al, 2012) (Table 4). For instance, Ant / (Ant + Phe) is widely used to differentiate between sources of combustion and oil.…”

Autochthonous bioaugmentation to enhance phenanthrene degradation in soil microcosms under arid conditions

“…Following extraction, transportation and storage of crude oil, some places in this region are frequently contaminated with hydrocarbons (Peressutti et al 2003). Aliphatic and polycyclic aromatic hydrocarbons (PAHs) are the major components of crude oil (Commendatore et al 2012). PAH have environmental significance due to their potential toxicity to organisms.…”