Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica)
Producción Científica Two Antarctic expeditions (in 2009 and 2011) were carried out to assess the local and remote anthropogenic sources of aliphatic and aromatic hydrocarbons, as well as potential biogenic hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs), n-alkanes, biomarkers such as phytane...
Published in: | Science of The Total Environment |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | https://uvadoc.uva.es/handle/10324/65157 https://doi.org/10.1016/j.scitotenv.2016.06.240 |
id |
ftunivvalladolid:oai:uvadoc.uva.es:10324/65157 |
---|---|
record_format |
openpolar |
spelling |
ftunivvalladolid:oai:uvadoc.uva.es:10324/65157 2024-02-27T08:33:14+00:00 Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) Cabrerizo, Ana Tejedo, Pablo Dachs, Jordi Benayas, Javier 2016 application/pdf https://uvadoc.uva.es/handle/10324/65157 https://doi.org/10.1016/j.scitotenv.2016.06.240 eng eng https://doi.org/10.1016/j.scitotenv.2016.06.240 Science of the Total Environment. November 2016. Volume 569-570, Pages 1500 - 15091 0048-9697 https://uvadoc.uva.es/handle/10324/65157 1500 1509 Science of The Total Environment 569-570 info:eu-repo/semantics/openAccess Elsevier info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2016 ftunivvalladolid https://doi.org/10.1016/j.scitotenv.2016.06.240 2024-01-31T00:29:02Z Producción Científica Two Antarctic expeditions (in 2009 and 2011) were carried out to assess the local and remote anthropogenic sources of aliphatic and aromatic hydrocarbons, as well as potential biogenic hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs), n-alkanes, biomarkers such as phytane (Ph) and pristane (Pr), and the aliphatic unresolved complex mixture (UCM), were analysed in soil and vegetation samples collected at Deception, Livingston, Barrientos and Penguin Islands (South Shetland Islands, Antarctica). Overall, the patterns of n-alkanes in lichens, mosses and grass were dominated by odd-over-even carbon number alkanes. Mosses and vascular plants showed high abundances of n-C21 to n-C35, while lichens also showed high abundances of n-C17 and n-C19. The lipid content was an important factor controlling the concentrations of n-alkanes in Antarctic vegetation (r2 = 0.28–0.53, p-level < 0.05). n-C12 to n-C35 n-alkanes were analysed in soils with a predominance of odd C number n-alkanes (n-C25, n-C27, n-C29, and n-C31), especially in the background soils not influenced by anthropogenic sources. The large values for the carbon predominance index (CPI) and the correlations between odd alkanes and some PAHs suggest the potential biogenic sources of these hydrocarbons in Antarctica. Unresolved complex mixture and CPI values ~ 1 detected at soils collected at intertidal areas and within the perimeter of Juan Carlos research station, further supported the evidence that even a small settlement (20 persons during the austral summer) can affect the loading of aliphatic and aromatic hydrocarbons in nearby soils. Nevertheless, the assessment of Pr/n-C17 and Ph/n-C18 ratios showed that hydrocarbon degradation is occurring in these soils Article in Journal/Newspaper Antarc* Antarctic Antarctica South Shetland Islands UVaDOC - Repositorio Documental de la Universidad de Valladolid Antarctic Austral Barrientos ENVELOPE(-59.733,-59.733,-62.400,-62.400) South Shetland Islands Science of The Total Environment 569-570 1500 1509 |
institution |
Open Polar |
collection |
UVaDOC - Repositorio Documental de la Universidad de Valladolid |
op_collection_id |
ftunivvalladolid |
language |
English |
description |
Producción Científica Two Antarctic expeditions (in 2009 and 2011) were carried out to assess the local and remote anthropogenic sources of aliphatic and aromatic hydrocarbons, as well as potential biogenic hydrocarbons. Polycyclic aromatic hydrocarbons (PAHs), n-alkanes, biomarkers such as phytane (Ph) and pristane (Pr), and the aliphatic unresolved complex mixture (UCM), were analysed in soil and vegetation samples collected at Deception, Livingston, Barrientos and Penguin Islands (South Shetland Islands, Antarctica). Overall, the patterns of n-alkanes in lichens, mosses and grass were dominated by odd-over-even carbon number alkanes. Mosses and vascular plants showed high abundances of n-C21 to n-C35, while lichens also showed high abundances of n-C17 and n-C19. The lipid content was an important factor controlling the concentrations of n-alkanes in Antarctic vegetation (r2 = 0.28–0.53, p-level < 0.05). n-C12 to n-C35 n-alkanes were analysed in soils with a predominance of odd C number n-alkanes (n-C25, n-C27, n-C29, and n-C31), especially in the background soils not influenced by anthropogenic sources. The large values for the carbon predominance index (CPI) and the correlations between odd alkanes and some PAHs suggest the potential biogenic sources of these hydrocarbons in Antarctica. Unresolved complex mixture and CPI values ~ 1 detected at soils collected at intertidal areas and within the perimeter of Juan Carlos research station, further supported the evidence that even a small settlement (20 persons during the austral summer) can affect the loading of aliphatic and aromatic hydrocarbons in nearby soils. Nevertheless, the assessment of Pr/n-C17 and Ph/n-C18 ratios showed that hydrocarbon degradation is occurring in these soils |
format |
Article in Journal/Newspaper |
author |
Cabrerizo, Ana Tejedo, Pablo Dachs, Jordi Benayas, Javier |
spellingShingle |
Cabrerizo, Ana Tejedo, Pablo Dachs, Jordi Benayas, Javier Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
author_facet |
Cabrerizo, Ana Tejedo, Pablo Dachs, Jordi Benayas, Javier |
author_sort |
Cabrerizo, Ana |
title |
Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
title_short |
Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
title_full |
Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
title_fullStr |
Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
title_full_unstemmed |
Anthropogenic and biogenic hydrocarbons in soils and vegetation from the South Shetland Islands (Antarctica) |
title_sort |
anthropogenic and biogenic hydrocarbons in soils and vegetation from the south shetland islands (antarctica) |
publishDate |
2016 |
url |
https://uvadoc.uva.es/handle/10324/65157 https://doi.org/10.1016/j.scitotenv.2016.06.240 |
long_lat |
ENVELOPE(-59.733,-59.733,-62.400,-62.400) |
geographic |
Antarctic Austral Barrientos South Shetland Islands |
geographic_facet |
Antarctic Austral Barrientos South Shetland Islands |
genre |
Antarc* Antarctic Antarctica South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctica South Shetland Islands |
op_relation |
https://doi.org/10.1016/j.scitotenv.2016.06.240 Science of the Total Environment. November 2016. Volume 569-570, Pages 1500 - 15091 0048-9697 https://uvadoc.uva.es/handle/10324/65157 1500 1509 Science of The Total Environment 569-570 |
op_rights |
info:eu-repo/semantics/openAccess Elsevier |
op_doi |
https://doi.org/10.1016/j.scitotenv.2016.06.240 |
container_title |
Science of The Total Environment |
container_volume |
569-570 |
container_start_page |
1500 |
op_container_end_page |
1509 |
_version_ |
1792044714189389824 |