Halocarbons in Aqueous matrices from the Rennick Glacier and the Ross Sea (Antarctica)

Zoccolillo, L.; Abete, C.; Amendola, Luca; Ruocco, Roberta; Sbrilli, Andrea; Termine, Marco

doi:10.1080/03067310310001637676

Cited by 21 publications

(7 citation statements)

References 4 publications

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“…Frozen samples (about 7 kg) were allowed to melt in the clean laboratory at the Italian base in Antarctica, and immediately liquidliquid extracted twice with 20 ml of n-hexane by a custom-made extraction system [38]. The extraction was performed in a class 100 laminar flow hood.…”

Section: Analytical Proceduresmentioning

confidence: 99%

A snow/firn four-century record of polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) at Talos Dome (Antarctica)

Fuoco

Giannarelli

Onor

et al. 2012

Microchemical Journal

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Section: Analytical Proceduresmentioning

confidence: 99%

A snow/firn four-century record of polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) at Talos Dome (Antarctica)

Fuoco

Giannarelli

Onor

et al. 2012

Microchemical Journal

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“…The PCB and PAH total content was calculated as the sum of the concentration of the compounds listed in Table 1, which were individually quantified. Very briefly, seawater samples were extracted with n-hexane as soon as possible after sampling, either in the clean laboratory at the "Mario Zucchelli" (former Terra Nova Station) Italian Base in Antarctica or in the analytical laboratory onboard the ice-breaker by a high efficiency liquidliquid extraction system [22]. The organic extracts were sent to the laboratory in Italy for the instrumental analysis.…”

Section: Analytical Proceduresmentioning

confidence: 99%

Persistent organic pollutants (POPs) at Ross Sea (Antarctica)

Fuoco

Giannarelli

Wei

et al. 2009

Microchemical Journal

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The most significant findings on the presence of persistent organic pollutants (POPs) in the marine ecosystem at Ross Sea are presented. Seawater samples were collected in many sampling sites located in a large area of the Ross Sea during various Italian expeditions in Antarctica. Two classes of POPs were considered, namely polychlorobiphenyls (PCBs) and polycyclic aromatic hydrocarbons (PAHs). The results highlighted the presence of these compounds in seawater samples at a total concentration level of about 50 pg/l for PCBs, and 220 pg/l for PAHs. Moreover, seawater samples showed low to high molecular weight PAHs (LMW/HMW) and phenanthrene to anthracene (PHE/ANT) ratios higher than 1 and 5, respectively, which may suggest the predominance of a petrogenic source (i.e. petroleum product contamination). Results were also obtained on the POP depth profile in the water column at Cape Adere, where two water masses converge and mix, i.e. the Modified Circumpolar Deep Water (MCDW) and the High Salinity Shelf Water (HSSW). According to both the PAH and temperature profiles a two-fold higher PAH and PCB concentration was observed for MCDW samples with respect to HSSW. This result represents the first experimental evidence of the external input of pollutants in this area of the Ross Sea coming from the outer oceanic circulation.

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“…Chemical analyses to determine the PCB concentration in water and sediments samples were carried out by GC-MS. The analytical procedure for PCB determination in water samples has been described elsewhere (Zoccolillo et al, 2004). The method consisted of a high efficiency liquid-liquid extraction with n-hexane followed by a gas chromatographic analysis with a mass spectrometric confirmation.…”

Section: Methodsmentioning

confidence: 99%

Enrichment, isolation and biodegradation potential of psychrotolerant polychlorinated-biphenyl degrading bacteria from the Kongsfjorden (Svalbard Islands, High Arctic Norway)

Papale

Giannarelli

Francesconi

et al. 2017

Marine Pollution Bulletin

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Persistent organic pollutants (POPs), such as polychlorinated biphenyls (PCBs), have been detected in abiotic Arctic matrices: surface sediments and seawater from coastal areas in the Kongsfjorden were collected and analyzed. Levels of PCBs varied depending on the sampling site. Total PCB concentrations were between 11.63 (site C2W) and 27.69pgl (site AW). These levels were comparable to those reported previously in lake sediments from the northern Svalbard. The occurrence and biodegradation potential of cold-adapted PCB-oxidizing bacteria in seawater and sediment along the fjord was also evaluated. After enrichment with biphenyl, 246 isolates were obtained with 45 of them that were able to grow in the presence of the PCB mixture Aroclor 1242, as the sole carbon source. The catabolic gene bphA was harbored by 17 isolates with affiliates to the genera Algoriphagus, Devosia and Salinibacterium that have been never reported as able to utilize PCBs, thus deserving further investigation. The total removal of Aroclor 1242 and selected PCB congeners was evaluated at 4 and 15°C for eight bphA-harboring isolates and Gelidibacter sp. DS-10. With few exceptions, tested strains showed greater efficiency at 15 than at 4°C. Isolates were able to reduce most chromatographic peaks by >50%, with some di- and trichlorobiphenyls that were quite totally removed (>90%).

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Halocarbons in Aqueous matrices from the Rennick Glacier and the Ross Sea (Antarctica)

Cited by 21 publications

References 4 publications

A snow/firn four-century record of polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) at Talos Dome (Antarctica)

A snow/firn four-century record of polycyclic aromatic hydrocarbons (PAHs) and polychlorobiphenyls (PCBs) at Talos Dome (Antarctica)

Persistent organic pollutants (POPs) at Ross Sea (Antarctica)

Enrichment, isolation and biodegradation potential of psychrotolerant polychlorinated-biphenyl degrading bacteria from the Kongsfjorden (Svalbard Islands, High Arctic Norway)

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