Distributions of polycyclic aromatic hydrocarbons in a sediment core from the north basin of Lake Biwa, Japan

Sedimentary record of PAHs in the Barigui River and its relation to the socioeconomic development of Curitiba, Brazil

“…Regardless of the source of PAHs in the environment, these compounds can be extremely valuable in the historical reconstruction of pollutants release into the environment (Guo et al, 2011;Itoh et al, 2010;Kannan et al, 2005). Consequently, it is possible to assess the influence of historical anthropogenic activity on local ecosystems (Liu et al, 2012).…”

Experimental design approach to the optimisation of hydrocarbons extraction from the sediment: Method development and application

“…Other extraction techniques have also been developed not only in order to reduce the volume of solvents and extraction times, but also to improve precision of the analytes recoveries. Such techniques include microwave-assisted extraction (MAE), supercritical fluid extraction (SFE) and accelerated solvent extraction (ASE) (Camel, 2001;Song et al, 2002;Charriau, 2009;Itoh et al, 2009;Itoh et al, 2010). Among these techniques, ASE, also known as pressurized liquid extraction (PLE), remains an efficient tool for different solid samples extraction.…”

Perylene in Lake Biwa sediments originating from Cenococcum geophilum in its catchment area

“…Because they are well preserved for extended periods of time, their vertical distributions in sediment cores have been used to reconstruct human activities and natural events (Jiang et al, 2000;Grice et al, 2009;Itoh et al, 2010a).…”

“…Perylene, which is composed of five benzene rings, is commonly found in sediments throughout the world at concentrations and distributions that are different from those of other polycyclic aromatic hydrocarbons (Venkatesan, 1988;Jiang et al, 2000;Grice et al, 2009;Itoh et al, 2010a). Since the discovery of perylene in aquatic sediments by Orr and Grady (1967: marine sediments) and Hodgson et al (1968: fresh water lake), many researchers have reported the abundance of perylene in both marine and lacustrine sediments, and discussed on its source, route to sediments, reactions etc.…”