(Table 1) Concentrations of organic pollutants in soil samples from Adélie penguin (Pygoscelis adeliae) colonies and reference sites, Hop Island, Antarctica
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2007
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| _version_ | 1867170963276169216 |
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| author | Roosens, Laurence Van Den Brink, Nico W Riddle, Martin J Blust, Ronny Neels, Hugo Covaci, Adrian |
| author_facet | Roosens, Laurence Van Den Brink, Nico W Riddle, Martin J Blust, Ronny Neels, Hugo Covaci, Adrian |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Although long-range atmospheric transport has been described as the predominant mechanism for exposing polar regions to persistent organic pollutants (POPs), recent studies have suggested that bird activity can also contribute substantially to contaminant levels in some environments. However, because the species so far reported have all been migratory, it has not been demonstrated conclusively whether locally elevated contamination represents transport from lower latitudes by the migrating birds or, alternatively, redistribution and concentration of contaminants that were already present in the high-latitude environments. The present study demonstrates, for the first time, that several POPs are present in elevated concentrations in an environment frequented by a non-migratory species (Adelie penguins) that spends its entire life in the Antarctic. Levels of POPs, such as p,p'-DDE, hexachlorobenzene (HCB), chlordanes (CHLs) and polychlorinated biphenyls (PCBs), were 10 to 100-fold higher in soil samples from penguin colonies than from reference areas. This significant difference is likely related to local penguin activity, such as a higher abundance of guano and the presence of bird carcasses. This hypothesis is also supported by a higher percentage of persistent congeners (PCB 99, 118, 138 and 153) in the soil from the colonies compared to the reference areas. This profile of PCB congeners closely matched profiles seen in penguin eggs or penguin blood. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_819304 |
| institution | PANGAEA |
| language | en |
| publishDate | 2007 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Concentrations of organic pollutants in soil samples from Adélie penguin (Pygoscelis adeliae) colonies and reference sites, Hop Island, Antarctica Roosens, Laurence Van Den Brink, Nico W Riddle, Martin J Blust, Ronny Neels, Hugo Covaci, Adrian alpha-Hexachlorocyclohexane; beta-Hexachlorocyclohexane; Carbon, organic, total; Chlordane; Chlordane, standard deviation; cis-Chlordane; DATE/TIME; Dichlorodiphenyltrichloroethane; Dichlorodiphenyltrichloroethane, standard deviation; gamma-Hexachlorocyclohexane; Gas chromatography - Mass spectrometry (GC-MS); Group; HAND; Hexachlorobenzene; Hexachlorobenzene, standard deviation; Hexachlorocyclohexane; Hexachlorocyclohexane, standard deviation; Hop_Is; International Polar Year (2007-2008); IPY; ortho,para-Dichlorodiphenyltrichloroethane; Oxychlordane; para,para-Dichlorodiphenyldichloroethane; para,para-Dichlorodiphenyldichloroethylene; para,para-Dichlorodiphenyltrichloroethane; Polybrominated diphenyl ethers; Polychlorinated biphenyl; Polychlorinated biphenyl, standard deviation; Prydz Bay; Sample amount; Sample ID; Sample type; Sampling by hand; trans-Chlordane; trans-Nonachlor Although long-range atmospheric transport has been described as the predominant mechanism for exposing polar regions to persistent organic pollutants (POPs), recent studies have suggested that bird activity can also contribute substantially to contaminant levels in some environments. However, because the species so far reported have all been migratory, it has not been demonstrated conclusively whether locally elevated contamination represents transport from lower latitudes by the migrating birds or, alternatively, redistribution and concentration of contaminants that were already present in the high-latitude environments. The present study demonstrates, for the first time, that several POPs are present in elevated concentrations in an environment frequented by a non-migratory species (Adelie penguins) that spends its entire life in the Antarctic. Levels of POPs, such as p,p'-DDE, hexachlorobenzene (HCB), chlordanes (CHLs) and polychlorinated biphenyls (PCBs), were 10 to 100-fold higher in soil samples from penguin colonies than from reference areas. This significant difference is likely related to local penguin activity, such as a higher abundance of guano and the presence of bird carcasses. This hypothesis is also supported by a higher percentage of persistent congeners (PCB 99, 118, 138 and 153) in the soil from the colonies compared to the reference areas. This profile of PCB congeners closely matched profiles seen in penguin eggs or penguin blood. |
| title | (Table 1) Concentrations of organic pollutants in soil samples from Adélie penguin (Pygoscelis adeliae) colonies and reference sites, Hop Island, Antarctica |
| topic | alpha-Hexachlorocyclohexane; beta-Hexachlorocyclohexane; Carbon, organic, total; Chlordane; Chlordane, standard deviation; cis-Chlordane; DATE/TIME; Dichlorodiphenyltrichloroethane; Dichlorodiphenyltrichloroethane, standard deviation; gamma-Hexachlorocyclohexane; Gas chromatography - Mass spectrometry (GC-MS); Group; HAND; Hexachlorobenzene; Hexachlorobenzene, standard deviation; Hexachlorocyclohexane; Hexachlorocyclohexane, standard deviation; Hop_Is; International Polar Year (2007-2008); IPY; ortho,para-Dichlorodiphenyltrichloroethane; Oxychlordane; para,para-Dichlorodiphenyldichloroethane; para,para-Dichlorodiphenyldichloroethylene; para,para-Dichlorodiphenyltrichloroethane; Polybrominated diphenyl ethers; Polychlorinated biphenyl; Polychlorinated biphenyl, standard deviation; Prydz Bay; Sample amount; Sample ID; Sample type; Sampling by hand; trans-Chlordane; trans-Nonachlor |
| url | https://doi.org/10.1594/PANGAEA.819304 |