Perylene and its geochemical significance

Application of multiple geochemical markers to investigate organic pollution in a dynamic coastal zone

“…Principal component analysis, as detailed in the Supplemental Data, suggested that perylene was well correlated with the first principal component, which was heavily weighted with vehicular exhaust markers (IcdP and BghiP) [41], high molecular weight n-alkanes (n-C 19 -n-C 35 ) and UCM, as well as component 2, which was highly correlated with parent PAH compounds (Supplemental Data, Table S6). The widespread occurrence of perylene in river and marine sediments [42][43][44][45], and even unpolluted sediments [46], was thought to stem from early diagenesis of aquatic precursors such as diatoms [47,48] and terrestrial precursors such as photosynthetic pigments [49]. Diagenetic perylene is normally most abundant in fine, anoxic sediments.…”

Polycyclic aromatic hydrocarbons (PAHs) in continental shelf sediment of China: Implications for anthropogenic influences on coastal marine environment

“…S1), excluding anthropogenic activity as the possible sources of perylene. Generally, perylene is considered as either a biosynthesis product independent of precursors (Wilcke et al, 2002) or a diagenesis product from terrestrial and/or aquatic precursors (Aizenshtat, 1973;Venkatesan, 1988;Wakeham et al, 1979). Lack of significant correlations between the concentrations of perylene and anthropogenic PAHs in Yellow Sea (r 2 ¼ 0.02e0.21, p > 0.28; Table S4) and the SCS (r 2 ¼ 0.04e0.14, p > 0.12; Table S4) sediments suggested that perylene in these two regions was also non-anthropogenic.…”

“…Lack of significant correlations between the concentrations of perylene and anthropogenic PAHs in Yellow Sea (r 2 ¼ 0.02e0.21, p > 0.28; Table S4) and the SCS (r 2 ¼ 0.04e0.14, p > 0.12; Table S4) sediments suggested that perylene in these two regions was also non-anthropogenic. On the other hand, the fairly significant correlations between the concentrations of sedimentary perylene and terrestrial hydrocarbons (the sum of n-C 27 , n-C 29 and n-C 31 (n-C i , normal alkane with carbon number of i; data not shown)) in Yellow Sea (r 2 ¼ 0.74, p < 0.01) and the SCS (r 2 ¼ 0.74, p < 0.01) indicated that sedimentary perylene in these two regions mainly originated from diagenesis of terrestrial precursors, perylene quinones derived from fungi, insects, and black pigments in plants etc., (Aizenshtat, 1973;Bakhtiari et al, 2009;Ishiwatari et al, 1980;Silliman et al, 1998). Based on the above assessments, methylated phenanthrenes (2-mPhe, 1-mPhe, and 2,6-dimPhe) and perylene were also excluded from the sum of individual PAHs for further discussions.…”

Variation in the content and distribution of biomarkers in two closely situated peat and lignite deposits

“…Perylene was also identified but only in the lignite samples. It has been considered as arising from biogenic sources as a result of chemical reduction of perylene-based pigment (Aizenshtat, 1973;Tan and Heit, 1981;Louda and Baker, 1984).…”