Polycyclic aromatic hydrocarbons in permafrost peatlands

Abstract The concentrations of 15 individual PAHs in 93 peat cores have been determined by using high-performance liquid chromatography methods. In the profile the qualitative and quantitative composition of PAHs was non-uniform estimated in a wide range: from 112 to 3673 ng/g with mean 1214 ± 794 n...

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Autores principales:	Alexander Pastukhov, Sergey Loiko, Dmitry Kaverin
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/90af49b95be841179a39196b89a87439
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spelling	oai:doaj.org-article:90af49b95be841179a39196b89a874392021-12-02T17:27:03ZPolycyclic aromatic hydrocarbons in permafrost peatlands10.1038/s41598-021-98384-z2045-2322https://doaj.org/article/90af49b95be841179a39196b89a874392021-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-98384-zhttps://doaj.org/toc/2045-2322Abstract The concentrations of 15 individual PAHs in 93 peat cores have been determined by using high-performance liquid chromatography methods. In the profile the qualitative and quantitative composition of PAHs was non-uniform estimated in a wide range: from 112 to 3673 ng/g with mean 1214 ± 794 ng/g. Among 15 identified individual PAHs, the main contribution to their total amount was made by heavy highly condensed PAHs in the Eastern European peat plateaus, in particular, 6-nuclear benzo[ghi]perylene (1021 ± 707 ng/g), whereas in West Siberian permafrost peatlands, light PAHs were dominating, mostly naphthalene and phenanthrene (211 ± 87 and 64 ± 25 ng/g, respectively). The grass-equisetum peat contained the maximum of heavy PAHs and the dwarf shrub-grass—the minimum. In grass-dwarf shrub, grass-moss and moss peat, the share of 2-nuclear PAHs was most significant: naphthalene and fluorene, as well as 6-nuclear benzo[ghi]perylene. The presence of benzo[ghi]perylene in the entire peat strata, including its permafrost layer, was a marker of the anaerobic conditions that persisted throughout the Holocene and they were necessary for the synthesis of this compound.Alexander PastukhovSergey LoikoDmitry KaverinNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Alexander Pastukhov Sergey Loiko Dmitry Kaverin Polycyclic aromatic hydrocarbons in permafrost peatlands
description	Abstract The concentrations of 15 individual PAHs in 93 peat cores have been determined by using high-performance liquid chromatography methods. In the profile the qualitative and quantitative composition of PAHs was non-uniform estimated in a wide range: from 112 to 3673 ng/g with mean 1214 ± 794 ng/g. Among 15 identified individual PAHs, the main contribution to their total amount was made by heavy highly condensed PAHs in the Eastern European peat plateaus, in particular, 6-nuclear benzo[ghi]perylene (1021 ± 707 ng/g), whereas in West Siberian permafrost peatlands, light PAHs were dominating, mostly naphthalene and phenanthrene (211 ± 87 and 64 ± 25 ng/g, respectively). The grass-equisetum peat contained the maximum of heavy PAHs and the dwarf shrub-grass—the minimum. In grass-dwarf shrub, grass-moss and moss peat, the share of 2-nuclear PAHs was most significant: naphthalene and fluorene, as well as 6-nuclear benzo[ghi]perylene. The presence of benzo[ghi]perylene in the entire peat strata, including its permafrost layer, was a marker of the anaerobic conditions that persisted throughout the Holocene and they were necessary for the synthesis of this compound.
format	article
author	Alexander Pastukhov Sergey Loiko Dmitry Kaverin
author_facet	Alexander Pastukhov Sergey Loiko Dmitry Kaverin
author_sort	Alexander Pastukhov
title	Polycyclic aromatic hydrocarbons in permafrost peatlands
title_short	Polycyclic aromatic hydrocarbons in permafrost peatlands
title_full	Polycyclic aromatic hydrocarbons in permafrost peatlands
title_fullStr	Polycyclic aromatic hydrocarbons in permafrost peatlands
title_full_unstemmed	Polycyclic aromatic hydrocarbons in permafrost peatlands
title_sort	polycyclic aromatic hydrocarbons in permafrost peatlands
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/90af49b95be841179a39196b89a87439
work_keys_str_mv	AT alexanderpastukhov polycyclicaromatichydrocarbonsinpermafrostpeatlands AT sergeyloiko polycyclicaromatichydrocarbonsinpermafrostpeatlands AT dmitrykaverin polycyclicaromatichydrocarbonsinpermafrostpeatlands
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Polycyclic aromatic hydrocarbons in permafrost peatlands

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