@article{nokey,

title = {Limited atmospheric iron availability increase during the Younger Dryas in the Northern Hemisphere},

author = {Burgay, Francois and Derrod Haley and Erhardt Tobias and Scoto Federico and Segato Delia and Maffezzoli Niccolo and Dallo Federico and Zannoni Daniele and Spagnesi Azzurra and Kjaer Helle-Astrid and Fischer Hubertus and Varin Cristiano and Barbante Carlo and Spolaor Andrea},

doi = {https://doi.org/10.5194/cp-22-1675-2026},

year  = {2026},

date = {2026-09-15},

urldate = {2026-09-15},

journal = {Clim. Past},

volume = {22},

pages = {1675–1689},

abstract = {Iron (Fe) availability modulates phytoplankton blooms in High-Nutrient Low-Chlorophyll (HNLC) regions, i.e., ocean areas characterized by an abundance of major nutrients but low marine productivity. Fe can be delivered to the oceans through atmospheric dust deposition, making ice cores unique archives for reconstructing past changes in aeolian Fe deposition. However, while it is known that during dustier periods atmospheric Fe depositions increased, uncertainties remain regarding the fraction of Fe actually available to phytoplankton. Here, we present evidence from the EGRIP ice core (Greenland) during the Pleistocene-Holocene transition (10.3–13.0 ka), which provides insights into atmospheric aerosol deposition over the Fe-limited North Pacific Ocean. Results show that, in contrast to the 17-fold enhancement in total Fe determined by Inductively Coupled Plasma Mass Spectrometry, the iron fraction more likely available for phytoplankton (i.e., labile iron) increased only modestly (+29 %) during the Younger Dryas compared to the Early Holocene, likely due to prevailing alkaline aerosol conditions reducing its solubility. This finding supports the hypothesis that factors other than atmospheric Fe deposition (e.g., stronger water stratification, sea-ice extent, volcanic eruptions, iron remobilization from sediments), played a more relevant role in regulating marine net primary productivity in the HNLC North Pacific Ocean over the last glacial transition},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Biscaro2026,

title = {Bromine Enrichment Signal in Svalbard Shallow Cores Reflects Changes of Seasonal Sea Ice Variability},

author = {Enrico Biscaro and Federico Scoto and Catherine Larose and Elena Barbaro and Francois Burgay and David Cappelletti and Giuliano Dreossi and Jacopo Gabrieli and Elisabeth Isaksson and Jack Kohler and Barbara Stenni and Clara Turetta and Jean‐Charles Gallet and Andrea Spolaor},

doi = {10.1029/2025gl120091},

issn = {1944-8007},

year  = {2026},

date = {2026-04-28},

journal = {Geophysical Research Letters},

volume = {53},

number = {8},

publisher = {American Geophysical Union (AGU)},

abstract = {Abstract

                  Bromine enrichment  has been widely used as a proxy for past sea ice reconstructions. In this study, three firn cores drilled on Holtedahlfonna (Svalbard) were analyzed for trace elements. Excluding a single year data, a positive correlation was observed between  and springtime sea ice variability in the potential source region during 2005–2016. Accounting for different sea ice ages,  signal resulted significantly correlated only with first‐year sea ice, reinforcing its role as a major contributor to springtime gas‐phase bromine emissions. Comparisons between Na and Br concentrations in shallow cores and temporally corresponding values in annual snow pits collected at the same site reveal that elemental reallocation similarly affects both chemicals, resulting in a generally stable  signal over time. Finally, the negative correlation with the  temperature proxy further supports the capability of  to capture past climate‐change‐driven sea ice fluctuations.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Frassati2026,

title = {Seasonal bromate formation in the Arctic snowpack: Implications for the bromine biogeochemical cycle},

author = {Stefano Frassati and Elena Barbaro and Giulio Cozzi and Clara Turetta and Federico Scoto and Claudia Rossetti and Marco Roman and Matteo Feltracco and Kitae Kim and François Burgay and Alfonso Saiz-Lopez and Joseph S. Francisco and Ward Van Pelt and Feiyue Wang and David Cappelletti and Sofia Lerda and Giovanni Bistoni and Filippo De Angelis and Carlo Barbante and Andrea Gambaro and Andrea Spolaor},

doi = {10.1126/sciadv.aea3286},

issn = {2375-2548},

year  = {2026},

date = {2026-04-17},

urldate = {2026-04-17},

journal = {Sci. Adv.},

volume = {12},

number = {16},

publisher = {American Association for the Advancement of Science (AAAS)},

abstract = {Abstract

Bromine exists in multiple chemical forms in the atmosphere, with bromide (Br−) being the predominant species in snow. Here, we detect and track the formation of bromate (BrO3−) in Arctic snow and propose a mechanism for its production. Our observations reveal relevant BrO3− concentrations, reaching up to 5% of total bromine, during springtime. The evidence for the persistence of BrO3− in the snowpack and its production as a function of solar radiation suggests a snow-driven photochemical process, with negligible contributions from direct aerosol deposition, and emphasizes the role of the snowpack as a reactive matrix for photooxidation, providing insights into the bromine cycle in the Arctic. Our findings are supported by quantum chemical calculations, which explore both radical and ionic reaction mechanisms and the matrix effect, thereby supporting the role of snowpack in promoting BrO3− formation. The presence of BrO3− in snowpack represents a reservoir of nonreactive bromine, with potential implications for understanding halogen chemistry in polar environments.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Baccolo2026,

title = {A review on ice-cores from temperate glaciers: processes, signal preservation, and paleoclimatic significance},

author = {Giovanni Baccolo and Anja Eichler and Theo Jenk and François Burgay and Margit Schwikowski},

doi = {10.1017/jog.2026.10182},

issn = {1727-5652},

year  = {2026},

date = {2026-00-00},

urldate = {2026-00-00},

journal = {J. Glaciol.},

pages = {1--49},

publisher = {Cambridge University Press (CUP)},

abstract = {Abstract

Temperate glaciers, characterized by ice at the pressure melting point and the coexistence of solid and liquid water, are generally considered unsuitable as natural archives because meltwater undermines the paleoclimatic signals they hold. Historically, ice-core studies have favoured cold glaciers. owever, the ongoing atmospheric warming is driving many formerly cold portions of glaciers toward temperate conditions. As such, the relevance of temperate ice as potential paleoclimate archives is increasing. Assessing its ability to record environmental signals has become a priority for ice core science. This review synthesizes more than seventy years of research on temperate ice-cores, tracing the evolution of scientific approaches from pioneering efforts in the 1950s to recent projects across the globe. The behaviour of ice-core proxies -including soluble and insoluble impurities, water stable isotopes, gases, radionuclides, and organic compounds- is discussed in the context of meltwater-related post-depositional processes. By compiling and comparing evidence from diverse settings, this work highlights both the challenges and the emerging opportunities for retrieving meaningful

information from temperate glaciers. Understanding how climatic and chemical signals are modified, preserved, or lost in rapidly transforming glaciers is essential for sustaining the role of ice-core science in a warming world. },

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Segato2025,

title = {High Resolution Arctic Iodine Variability Since the Last Glacial Termination},

author = {Delia Segato and Andrea Spolaor and Juan Pablo Corella and Carlos A. Cuevas and François Burgay and Rafael P. Fernandez and Clara Turetta and Warren Cairns and Helle Astrid Kjær and Azzurra Spagnesi and Khanghyun Lee and Tobias Erhardt and Camilla M. Jensen and Chantal Zeppenfeld and Carlo Barbante and Alfonso Saiz‐Lopez},

doi = {10.1029/2025jd044552},

issn = {2169-8996},

year  = {2025},

date = {2025-12-28},

journal = {JGR Atmospheres},

volume = {130},

number = {24},

publisher = {American Geophysical Union (AGU)},

abstract = {Abstract

                  Tropospheric iodine plays a key role in ozone depletion and new particle formation. Understanding how iodine responds to climatic shifts is crucial for predicting future atmospheric composition. Here, we present high‐resolution iodine fluxes in the EGRIP (East GReenland Ice Core Project) ice core in central Greenland spanning the last 15.7 kyr. By integrating these data with complementary proxies from other ice and marine sediment cores, we explore both the temporal and spatial patterns of iodine deposition across the Greenland ice sheet. We find lower iodine fluxes at EGRIP compared to RECAP and NEEM ice cores over the last 15.7 kyr, explained by the lower efficiency of iodine transport to the interior of the ice sheet. Our results show that during the cold periods of the Last Glacial Termination (15.7–11.7 kyr before present), iodine fluxes at EGRIP were higher than during the Holocene, likely due to enhanced long‐range transport of iodine adsorbed onto dust and sea‐salt aerosols under stronger glacial wind regimes. In contrast, during the Holocene, the sources and transport pathways of iodine shifted to marine sources. We infer that iodine was increasingly emitted from the expanded seasonal sea ice area and biologically active subpolar North Atlantic waters, though overall fluxes at EGRIP were lower than during the glacial period, reflecting the reduction in long‐range transport. After rising until 5 kyr before present, iodine fluxes declined throughout the Neoglacial, in concomitance with regional cooling, increased sea ice extent, and reduced ocean productivity.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Huber2025,

title = {Influence of Meltwater Percolation on Preservation of Organic Aerosol Tracers in Glacier Archives},

author = {C. J. Huber and F. Burgay and D. Salionov and A. Eichler and D. Sharkov and T. M. Jenk and L. S. Schmidt and S. Bjelić and M. Schwikowski},

doi = {10.1021/acs.est.5c09791},

issn = {1520-5851},

year  = {2025},

date = {2025-11-25},

urldate = {2025-11-25},

journal = {Environ. Sci. Technol.},

volume = {59},

number = {46},

pages = {24767--24776},

publisher = {American Chemical Society (ACS)},

abstract = {Abstract

Ice cores are valuable archives for reconstructing past atmospheric aerosol composition. However, their interpretability is increasingly challenged by climate change, which accelerates melting and may lead to the vertical relocation or loss within the firn or ice matrix of organic and inorganic impurities. Using a hybrid target/nontarget screening approach, we present a comprehensive assessment of organic compound preservation from a firn core collected at the Grand Combin (Switzerland) covering the period 2008–2020. A total of 248 different molecules were identified, mainly secondary organic aerosol tracers composed of carbon, hydrogen, and oxygen. The core stratigraphy for organics appears relatively undisturbed down to a depth of 9.60 m. Below this depth, corresponding to the year 2015, the intensities of 166 compounds decreased to near-blank values, suggesting relocation or removal by meltwater. These compounds were mainly monoterpene and isoprene oxidation products, exhibiting statistically significant lower molecular weight, fewer carbon atoms, and higher polarity compared to the others, supporting the idea that smaller, more oxidized molecules are more prone to meltwater-driven relocation. As an increasing number of glaciers are affected by melt or rain events, this study provides an experimental benchmark for improving the reliability of organic aerosol reconstructions from ice cores influenced by melting.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Stachnik2025,

title = {Controls of sediment-bound and dissolved nutrient transport from a glacierised metasedimentary catchment in the high Arctic},

author = {Lukasz Stachnik and Jon Hawkings and Andrea Spolaor and Katarzyna Stachniak and Dariusz Ignatiuk and Sławomir Sitek and Krzysztof Janik and Elżbieta Łepkowska and Francois Burgay and Marcin Daniel Syczewski and Delia Segato and Pablo Forjanes and Liane G. Benning},

doi = {10.1016/j.chemgeo.2025.122940},

issn = {0009-2541},

year  = {2025},

date = {2025-09-00},

urldate = {2025-09-00},

journal = {Chemical Geology},

volume = {691},

publisher = {Elsevier BV},

abstract = {Abstract

Rapid warming in polar and alpine areas is causing significant glacier mass loss and resulting in increasing freshwater delivery to the oceans. Recent research indicates that higher meltwater water runoff is likely to increase solute and sediment transport, which will include nutrients, to downstream environments. This enhanced delivery may drive a negative feedback effect on atmospheric CO2 concentrations by stimulating primary production in fjords and near-coastal regions. Labile sediment-bound nutrient species constitute a high proportion of the total nutrient yield from glacierised catchments, but studies that investigate their source and behaviour are sparse. Here we determine sediment-bound and dissolved nutrient (Si, Fe, P) delivery from a polythermal glacier in SW Spitsbergen. Suspended sediment and dissolved samples were collected from subglacial outflows and a downstream site. Our results show high spatial variability in chemical weathering processes resulting in differences in sediment-bound nutrient concentration. Sulphide oxidation and carbonate dissolution appear more important in a channelised system underlain by rocks metamorphosed in green schist facies, and silicate mineral weathering appears more important in smaller subglacial outflows underlain by rocks undergone intense metamorphism in amphibolite facies. Sediments from the channelised outlet have two times higher content of sediment-bound highly reactive iron (∼0.29 % dry weight, hereafter d.w.) than the minor subglacial outflows. In contrast, sediment-bound amorphous silica (ASi) is almost double in the minor subglacial outflows compared to the channelised outlet (∼0.17 % d.w. vs ∼0.10 % d.w.). The yield of sediment-bound Fe and Si (2.3 and 1.3 103 kg km−2 yr−1, respectively) was several times higher than the dissolved flux of those elements. Sediment-bound Fe yields were in the range of values noted previously for the Greenland Ice Sheet. Our data reinforces the critical role of sediment-bound nutrients on elemental cycling in glacierised basins of the high Arctic.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2025,

title = {Nontarget screening of a Siberian ice core reveals changes in the pre-industrial to industrial organic aerosol composition},

author = {François Burgay and Daniil Salionov and Thomas Singer and Anja Eichler and Sabina Brütsch and Theo M. Jenk and Alexander L. Vogel and Tatyana Papina and Saša Bjelić and Margit Schwikowski},

doi = {10.1126/sciadv.adr1923},

issn = {2375-2548},

year  = {2025},

date = {2025-01-24},

urldate = {2025-01-24},

journal = {Sci. Adv.},

volume = {11},

number = {4},

publisher = {American Association for the Advancement of Science (AAAS)},

abstract = {Abstract

Glaciers serve as natural archives for reconstructing past changes of atmospheric aerosol concentration and composition. While most ice-core studies have focused on inorganic species, organic compounds, which can constitute up to 90% of the submicrometer aerosol mass, have been largely overlooked. To our knowledge, this study presents the first nontarget screening record of secondary organic aerosol species preserved in a Belukha ice core (Siberia, Russian Federation), ranging from the pre-industrial to the industrial period (1800–1980 CE). We identified a total of 398 molecules, primarily polar and low-volatile compounds. Since the 1950s, the atmospheric aerosol composition has changed, with the appearance of organic molecules, including nitrogen-containing compounds, deriving from enhanced atmospheric reactions with anthropogenic NOx, or direct emissions. In addition, there was a significant increase in the oxygen-to-carbon ratio (+3%) and the average carbon oxidation state (+18%) of the detected molecules compared to the pre-industrial period, suggesting an increased oxidative capacity of the atmosphere.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Schäfer2025,

title = {Method development and application for the analysis of chiral organic marker species in ice cores},

author = {Johanna Schäfer and Anja Beschnitt and François Burgay and Thomas Singer and Margit Schwikowski and Thorsten Hoffmann},

doi = {10.5194/amt-18-421-2025},

issn = {1867-8548},

year  = {2025},

date = {2025-00-00},

urldate = {2025-00-00},

journal = {Atmos. Meas. Tech.},

volume = {18},

number = {2},

pages = {421--430},

publisher = {Copernicus GmbH},

abstract = {Abstract

Glaciers are valuable environmental archives that preserve organic compounds from atmospheric aerosols that can be used as marker species for their respective emission sources. Most environmental studies do not distinguish between the enantiomers of chiral compounds, although these compounds, mostly from biogenic sources, are very common in the atmosphere. We have developed a two-dimensional (2D) liquid chromatography (mLC–LC) method that allows the simultaneous determination of the chiral ratios of the monoterpene oxidation products cis-pinic acid and cis-pinonic acid in ice-core samples. The method combines a reversed-phase column in the first dimension and a chiral column in the second dimension in a simple instrumental setup with only one additional six-port valve. This novel method was successfully applied to selected ice-core samples from the Belukha Glacier in the Siberian Altai spread over the period 1870–1970 CE. The chiral ratio of cis-pinic acid showed fluctuating values, while the chiral ratio of cis-pinonic acid remained more constant with an excess of the (−)-enantiomer.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Spagnesi2025,

title = {Seasonal and interannual variability on the chemical composition of the Svalbard surface snowpack},

author = {Azzurra Spagnesi and Elena Barbaro and Matteo Feltracco and Federico Scoto and Marco Vecchiato and Massimiliano Vardè and Mauro Mazzola and François Burgay and Federica Bruschi and Clara Jule Marie Hoppe and Allison Bailey and Andrea Gambaro and Carlo Barbante and Andrea Spolaor},

doi = {10.5194/acp-25-16215-2025},

issn = {1680-7324},

year  = {2025},

date = {2025-00-00},

urldate = {2025-00-00},

journal = {Atmos. Chem. Phys.},

volume = {25},

number = {22},

pages = {16215--16232},

publisher = {Copernicus GmbH},

abstract = {Abstract

The Svalbard Archipelago, highly sensitive to rapid environmental changes, offers an ideal physical laboratory to investigate how environmental drivers can shape the seasonal chemical composition of snow in a warming climate. From 2018 to 2021, sampling campaigns at the Gruvebadet Snow Research Site in Ny-Ålesund, in the North-West of the Svalbard Archipelago, captured the interannual variability in ionic and elemental impurities within surface snow, reflecting seasonal differences in atmospheric and oceanic conditions. Notably, warmer conditions prevailed in 2018–2019 and 2020–2021, contrasting with the relatively colder season of 2019–2020. Our findings suggest that impurity concentrations in the 2019–2020 colder season are impacted by enhanced sea spray aerosol production, likely driven by a larger extent of sea ice, and drier, windy conditions. This phenomenon was particularly evident in March 2020, when extensive sea ice was present in Kongsfjorden and around Spitsbergen due to an exceptionally strong, cold stratospheric polar vortex and unusual Arctic Oscillation (AO) index positive phase. This study provides a detailed characterization of how snow chemistry in this area responds to major environmental conditions, with particular attention to sea-ice extent, atmospheric circulation, synoptic conditions, and Arctic climate variability.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Scoto2024,

title = {Calibration of Arctic ice core bromine enrichment records for past sea ice reconstructions},

author = {Federico Scoto and Niccolò Maffezzoli and Matthew B. Osman and Carlos A. Cuevas and Paul Vallelonga and Sumito Matoba and Yoshinori Iizuka and Alessandro Gagliardi and Cristiano Varin and François Burgay and Gianluca Pappaccogli and Joseph R. McConnell and Nathan Chellman and Carlo Barbante and Alfonso Saiz-Lopez and Andrea Spolaor},

doi = {10.1016/j.scitotenv.2024.177063},

issn = {0048-9697},

year  = {2024},

date = {2024-12-00},

urldate = {2024-12-00},

journal = {Science of The Total Environment},

volume = {955},

publisher = {Elsevier BV},

abstract = {Abstract

Bromine in ice cores has been proposed as a qualitative sea ice proxy to produce sea ice reconstructions for the polar regions. Here we report the first statistical validation of this proxy with satellite sea ice observations by combining bromine enrichment (with respect to seawater, Brenr) records from three Greenlandic ice cores (SIGMA-A, NU and RECAP) with satellite sea ice imagery, over three decades. We find that during the 1984–2016 satellite-era, ice core Brenr values are significantly correlated with first-year sea ice formed in the Baffin Bay and Labrador Sea supporting that the gas-phase bromine enrichment processes, preferentially occurring over the sea ice surface, are the main driver for the Brenr signal in ice cores. Moreover, in assessing Brenr's capability to record historical sea ice variability, we compare 20th-century Arctic Sea ice historical and proxy records with our reconstructions, based on an autoregressive–moving-average (ARMA) model, finding overall good agreement. While further enhancements are warranted, including site-specific calibrations and a comprehensive investigation into bromine transport-related concerns, this study presents a new method to quantitatively reconstruct past seasonal sea ice variability through bromine enrichment in ice cores.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vecchiato2024,

title = {The seasonal change of PAHs in Svalbard surface snow},

author = {Marco Vecchiato and Carlo Barbante and Elena Barbaro and François Burgay and Warren RL. Cairns and Alice Callegaro and David Cappelletti and Federico Dallo and Marianna D'Amico and Matteo Feltracco and Jean-Charles Gallet and Andrea Gambaro and Catherine Larose and Niccolò Maffezzoli and Mauro Mazzola and Ivan Sartorato and Federico Scoto and Clara Turetta and Massimiliano Vardè and Zhiyong Xie and Andrea Spolaor},

doi = {10.1016/j.envpol.2023.122864},

issn = {0269-7491},

year  = {2024},

date = {2024-01-00},

urldate = {2024-01-00},

journal = {Environmental Pollution},

volume = {340},

publisher = {Elsevier BV},

abstract = {Abstract

The Arctic region is threatened by contamination deriving from both long-range pollution and local human activities. Polycyclic Aromatic Hydrocarbons (PAHs) are environmental tracers of emission, transport and deposition processes. A first campaign has been conducted at Ny-Ålesund, Svalbard, from October 2018 to May 2019, monitoring weekly concentrations of PAHs in Arctic surface snow. The trend of the 16 high priority PAH compounds showed that long-range inputs occurred mainly in the winter, with concentrations ranging from 0.8 ng L−1 to 37 ng L−1. In contrast to this, the most abundant analyte retene, showed an opposite seasonal trend with highest values in autumn and late spring (up to 97 ng L−1), while in winter this compound remained below 3 ng L−1. This is most likely due to local contributions from outcropping coal deposits and stockpiles. Our results show a general agreement with the atmospheric signal, although significant skews can be attributed to post-depositional processes, wind erosion, melting episodes and redistribution.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Spolaor2024,

title = {Climate change is rapidly deteriorating the climatic signal  in Svalbard glaciers},

author = {Andrea Spolaor and Federico Scoto and Catherine Larose and Elena Barbaro and Francois Burgay and Mats P. Bjorkman and David Cappelletti and Federico Dallo and Fabrizio de Blasi and Dmitry Divine and Giuliano Dreossi and Jacopo Gabrieli and Elisabeth Isaksson and Jack Kohler and Tonu Martma and Louise S. Schmidt and Thomas V. Schuler and Barbara Stenni and Clara Turetta and Bartłomiej Luks and Mathieu Casado and Jean-Charles Gallet},

doi = {10.5194/tc-18-307-2024},

issn = {1994-0424},

year  = {2024},

date = {2024-00-00},

urldate = {2024-00-00},

journal = {The Cryosphere},

volume = {18},

number = {1},

pages = {307--320},

publisher = {Copernicus GmbH},

abstract = {Abstract

The Svalbard archipelago is particularly sensitive to climate change due to the relatively low altitude of its main ice fields and its geographical location in the higher North Atlantic, where the effect of Arctic amplification is more significant. The largest temperature increases have been observed during winter, but increasing summer temperatures, above the melting point, have led to increased glacier melt. Here, we evaluate the impact of this increased melt on the preservation of the oxygen isotope (δ18O) signal in firn records. δ18O is commonly used as a proxy for past atmospheric temperature reconstructions, and, when preserved, it is a crucial parameter to date and align ice cores. By comparing four different firn cores collected in 2012, 2015, 2017 and 2019 at the top of the Holtedahlfonna ice field (1100 m a.s.l.), we show a progressive deterioration of the isotope signal, and we link its degradation to the increased occurrence and intensity of melt events. Our findings indicate that, starting from 2015, there has been an escalation in melting and percolation resulting from changes in the overall atmospheric conditions. This has led to the deterioration of the climate signal preserved within the firn or ice. Our observations correspond with the model's calculations, demonstrating an increase in water percolation since 2014, potentially reaching deeper layers of the firn. Although the δ18O signal still reflects the interannual temperature trend, more frequent melting events may in the future affect the interpretation of the isotopic signal, compromising the use of Svalbard ice cores. Our findings highlight the impact and the speed at which Arctic amplification is affecting Svalbard's cryosphere.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2023,

title = {Exploring new molecular universes: How non-target screening analysis can open new perspectives in ice-core science},

author = {François Burgay},

doi = {10.22498/pages.31.2.94},

issn = {2411-9180},

year  = {2023},

date = {2023-10-00},

journal = {PAGES Mag},

volume = {31},

number = {2},

pages = {94--95},

publisher = {Past Global Changes (PAGES)},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2023b,

title = {Hybrid Targeted/Untargeted Screening Method for the Determination of Wildfire and Water-Soluble Organic Tracers in Ice Cores and Snow},

author = {François Burgay and Daniil Salionov and Carla Jennifer Huber and Thomas Singer and Anja Eichler and Florian Ungeheuer and Alexander Vogel and Margit Schwikowski and Saša Bjelić},

doi = {10.1021/acs.analchem.3c01852},

issn = {1520-6882},

year  = {2023},

date = {2023-08-01},

urldate = {2023-08-01},

journal = {Anal. Chem.},

volume = {95},

number = {30},

pages = {11456--11466},

publisher = {American Chemical Society (ACS)},

abstract = {Abstract

Wildfires can influence the earth’s radiative forcing through the emission of biomass-burning aerosols. To better constrain the impacts of wildfires on climate and understand their evolution under future climate scenarios, reconstructing their chemical nature, assessing their past variability, and evaluating their influence on the atmospheric composition are essential. Ice cores are unique to perform such reconstructions representing archives not only of past biomass-burning events but also of concurrent climate and environmental changes. Here, we present a novel methodology for the quantification of five biomass-burning proxies (syringic acid, vanillic acid, vanillin, syringaldehyde, and p-hydroxybenzoic acid) and one biogenic emission proxy (pinic acid) using solid phase extraction (SPE) and ultrahigh-performance liquid chromatography coupled with high-resolution mass spectrometry. This method was also optimized for untargeted screening analysis to gain a broader knowledge about the chemical composition of organic aerosols in ice and snow samples. The method provides low detection limits (0.003–0.012 ng g–1), high recoveries (74 ± 10%), and excellent reproducibility, allowing the quantification of the six proxies and the identification of 313 different molecules, mainly constituted by carbon, hydrogen, and oxygen. The effectiveness of two different sample storage strategies, i.e., re-freezing of previously molten ice samples and freezing of previously loaded SPE cartridges, was also assessed, showing that the latter approach provides more reproducible results.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Erhardt2023,

title = {High-resolution aerosol data from the top 3.8 kyr of the East Greenland Ice coring Project (EGRIP) ice core},

author = {Tobias Erhardt and Camilla Marie Jensen and Florian Adolphi and Helle Astrid Kjær and Remi Dallmayr and Birthe Twarloh and Melanie Behrens and Motohiro Hirabayashi and Kaori Fukuda and Jun Ogata and François Burgay and Federico Scoto and Ilaria Crotti and Azzurra Spagnesi and Niccoló Maffezzoli and Delia Segato and Chiara Paleari and Florian Mekhaldi and Raimund Muscheler and Sophie Darfeuil and Hubertus Fischer},

doi = {10.5194/essd-15-5079-2023},

issn = {1866-3516},

year  = {2023},

date = {2023-00-00},

urldate = {2023-00-00},

journal = {Earth Syst. Sci. Data},

volume = {15},

number = {11},

pages = {5079--5091},

publisher = {Copernicus GmbH},

abstract = {Abstract

Here we present the high-resolution continuous flow analysis (CFA) data from the top 479 m of the East Greenland Ice coring Project (EGRIP) ice core covering the past 3.8 kyr. The data consist of 1 mm depth-resolution profiles of calcium, sodium, ammonium, nitrate, and electrolytic conductivity as well as decadal averages of these profiles. The nominally 1 mm data represent an oversampling of the record as the true resolution is limited by the analytical setup to approximately 1 cm. Alongside the data we provide a description of the measurement setup, procedures, the relevant references for the specific methods as well as an assessment of the precision of the measurements, the sample-to-depth assignment, and the depth and temporal resolution of the data set. The error in absolute depth assignment of the data may be on the order of 2 cm; however, relative depth offsets between the records of the individual species are only on the order of 1 mm. The presented data have sub-annual resolution over the entire depth range and have already formed part of the data for an annually layer-counted timescale for the EGRIP ice core used to improve and revise the multi-core Greenland ice-core chronology (GICC05) to a new version, GICC21 (Sinnl et al., 2022). The data are available in full 1 mm resolution and decadal averages on PANGAEA (https://doi.org/10.1594/PANGAEA.945293, Erhardt et al., 2022b).</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2023c,

title = {200-year ice core bromine reconstruction at Dome C (Antarctica): observational and modelling results},

author = {François Burgay and Rafael Pedro Fernández and Delia Segato and Clara Turetta and Christopher S. Blaszczak-Boxe and Rachael H. Rhodes and Claudio Scarchilli and Virginia Ciardini and Carlo Barbante and Alfonso Saiz-Lopez and Andrea Spolaor},

doi = {10.5194/tc-17-391-2023},

issn = {1994-0424},

year  = {2023},

date = {2023-00-00},

urldate = {2023-00-00},

journal = {The Cryosphere},

volume = {17},

number = {1},

pages = {391--405},

publisher = {Copernicus GmbH},

abstract = {Abstract

Bromine enrichment (Brenr) has been proposed as an ice core proxy for past sea-ice reconstruction. Understanding the processes that influence bromine preservation in the ice is crucial to achieve a reliable interpretation of ice core signals and to potentially relate them to past sea-ice variability. Here, we present a 210 years bromine record that sheds light on the main processes controlling bromine preservation in the snow and ice at Dome C, East Antarctic plateau. Using observations alongside a  modelling approach, we demonstrate that the bromine signal is preserved at Dome C and it is not affected by the strong variations in ultraviolet radiation reaching the Antarctic plateau due to the stratospheric ozone hole. Based on this, we investigate whether the Dome C Brenr record can be used as an effective tracer of past Antarctic sea ice. Due to the limited time window covered by satellite measurements and the low sea-ice variability observed during the last 30 years in East Antarctica, we cannot fully validate Brenr as an effective proxy for past sea-ice reconstructions at Dome C.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Maffezzoli2023,

title = {Detection of ice core particles via deep neural networks},

author = {Niccolò Maffezzoli and Eliza Cook and Willem G. M. van der Bilt and Eivind N. Støren and Daniela Festi and Florian Muthreich and Alistair W. R. Seddon and François Burgay and Giovanni Baccolo and Amalie R. F. Mygind and Troels Petersen and Andrea Spolaor and Sebastiano Vascon and Marcello Pelillo and Patrizia Ferretti and Rafael S. dos Reis and Jefferson C. Simões and Yuval Ronen and Barbara Delmonte and Marco Viccaro and Jørgen Peder Steffensen and Dorthe Dahl-Jensen and Kerim H. Nisancioglu and Carlo Barbante},

doi = {10.5194/tc-17-539-2023},

issn = {1994-0424},

year  = {2023},

date = {2023-00-00},

urldate = {2023-00-00},

journal = {The Cryosphere},

volume = {17},

number = {2},

pages = {539--565},

publisher = {Copernicus GmbH},

abstract = {Abstract

Insoluble particles in ice cores record signatures of past climate parameters like vegetation dynamics, volcanic activity, and aridity. For some of them, the analytical detection relies on intensive bench microscopy investigation and requires dedicated sample preparation steps. Both are laborious, require in-depth knowledge, and often restrict sampling strategies. To help overcome these limitations, we present a framework based on flow imaging microscopy coupled to a deep neural network for autonomous image classification of ice core particles. We train the network to classify seven commonly found classes, namely mineral dust, felsic and mafic (basaltic) volcanic ash grains (tephra), three species of pollen (Corylus avellana, Quercus robur, Quercus suber), and contamination particles that may be introduced onto the ice core surface during core handling operations. The trained network achieves 96.8 % classification accuracy at test time. We present the system's potential and its limitations with respect to the detection of mineral dust, pollen grains, and tephra shards, using both controlled materials and real ice core samples. The methodology requires little sample material, is non-destructive, fully reproducible, and does not require any sample preparation procedures. The presented framework can bolster research in the field by cutting down processing time, supporting human-operated microscopy, and further unlocking the paleoclimate potential of ice core records by providing the opportunity to identify an array of ice core particles. Suggestions for an improved system to be deployed within a continuous flow analysis workflow are also presented.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Scoto2022,

title = {Sea ice fluctuations in the Baffin Bay and the Labrador Sea during glacial abrupt climate changes},

author = {Federico Scoto and Henrik Sadatzki and Niccolò Maffezzoli and Carlo Barbante and Alessandro Gagliardi and Cristiano Varin and Paul Vallelonga and Vasileios Gkinis and Dorthe Dahl-Jensen and Helle Astrid Kjær and François Burgay and Alfonso Saiz-Lopez and Ruediger Stein and Andrea Spolaor},

doi = {10.1073/pnas.2203468119},

issn = {1091-6490},

year  = {2022},

date = {2022-11-00},

urldate = {2022-11-00},

journal = {Proc. Natl. Acad. Sci. U.S.A.},

volume = {119},

number = {44},

publisher = {National Academy of Sciences},

abstract = {Abstract

Sea ice decline in the North Atlantic and Nordic Seas has been proposed to contribute to the repeated abrupt atmospheric warmings recorded in Greenland ice cores during the last glacial period, known as Dansgaard-Oeschger (D-O) events. However, the understanding of how sea ice changes were coupled with abrupt climate changes during D-O events has remained incomplete due to a lack of suitable high-resolution sea ice proxy records from northwestern North Atlantic regions. Here, we present a subdecadal-scale bromine enrichment (Br_enr) record from the NEEM ice core (Northwest Greenland) and sediment core biomarker records to reconstruct the variability of seasonal sea ice in the Baffin Bay and Labrador Sea over a suite of D-O events between 34 and 42 ka. Our results reveal repeated shifts between stable, multiyear sea ice (MYSI) conditions during cold stadials and unstable, seasonal sea ice conditions during warmer interstadials. The shift from stadial to interstadial sea ice conditions occurred rapidly and synchronously with the atmospheric warming over Greenland, while the amplitude of high-frequency sea ice fluctuations increased through interstadials. Our findings suggest that the rapid replacement of widespread MYSI with seasonal sea ice amplified the abrupt climate warming over the course of D-O events and highlight the role of feedbacks associated with late-interstadial seasonal sea ice expansion in driving the North Atlantic ocean–climate system back to stadial conditions.

    },

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Spolaor2021,

title = {Antarctic ozone hole modifies iodine geochemistry on the Antarctic Plateau},

author = {Andrea Spolaor and François Burgay and Rafael P. Fernandez and Clara Turetta and Carlos A. Cuevas and Kitae Kim and Douglas E. Kinnison and Jean-François Lamarque and Fabrizio de Blasi and Elena Barbaro and Juan Pablo Corella and Paul Vallelonga and Massimo Frezzotti and Carlo Barbante and Alfonso Saiz-Lopez},

doi = {10.1038/s41467-021-26109-x},

issn = {2041-1723},

year  = {2021},

date = {2021-12-00},

urldate = {2021-12-00},

journal = {Nat Commun},

volume = {12},

number = {1},

publisher = {Springer Science and Business Media LLC},

abstract = {Abstract

Polar stratospheric ozone has decreased since the 1970s due to anthropogenic emissions of chlorofluorocarbons and halons, resulting in the formation of an ozone hole over Antarctica. The effects of the ozone hole and the associated increase in incoming UV radiation on terrestrial and marine ecosystems are well established; however, the impact on geochemical cycles of ice photoactive elements, such as iodine, remains mostly unexplored. Here, we present the first iodine record from the inner Antarctic Plateau (Dome C) that covers approximately the last 212 years (1800-2012 CE). Our results show that the iodine concentration in ice remained constant during the pre-ozone hole period (1800-1974 CE) but has declined twofold since the onset of the ozone hole era (~1975 CE), closely tracking the total ozone evolution over Antarctica. Based on ice core observations, laboratory measurements and chemistry-climate model simulations, we propose that the iodine decrease since ~1975 is caused by enhanced iodine re-emission from snowpack due to the ozone hole-driven increase in UV radiation reaching the Antarctic Plateau. These findings suggest the potential for ice core iodine records from the inner Antarctic Plateau to be as an archive for past stratospheric ozone trends.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Feltracco2021,

title = {Year-round measurements of size-segregated low molecular weight organic acids in Arctic aerosol},

author = {Matteo Feltracco and Elena Barbaro and Andrea Spolaor and Marco Vecchiato and Alice Callegaro and François Burgay and Massimiliano Vardè and Niccolò Maffezzoli and Federico Dallo and Federico Scoto and Roberta Zangrando and Carlo Barbante and Andrea Gambaro},

doi = {10.1016/j.scitotenv.2020.142954},

issn = {0048-9697},

year  = {2021},

date = {2021-04-00},

urldate = {2021-04-00},

journal = {Science of The Total Environment},

volume = {763},

publisher = {Elsevier BV},

abstract = {Abstract

Organic acids in aerosols Earth's atmosphere are ubiquitous and they have been extensively studied across urban, rural and polar environments. However, little is known about their properties, transport, source and seasonal variations in the Svalbard Archipelago. Here, we present the annual trend of organic acids in the aerosol collected at Ny-Ålesund and consider their size-distributions to infer their possible sources and relative contributions. A series of carboxylic acids were detected with a predominance of C2-oxalic acid. Pinic acid and cis-pinonic acid were studied in order to better understand the oxidative and gas-to-particle processes occurred in the Arctic atmosphere. Since the water-soluble organic fraction is mainly composed by organic acids and ions, we investigated how the seasonal variation leads to different atmospheric transport mechanisms, focusing on the chemical variations between the polar night and boreal summer. Using major ions, levoglucosan and MSA, the Positive Matrix Factorization (PMF) identified five different possible sources: a) sea spray; b) marine primary production; c) biomass burning; d) sea ice related process and e) secondary products.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2021b,

title = {First discrete iron(II) records from Dome C (Antarctica) and the Holtedahlfonna glacier (Svalbard)},

author = {François Burgay and Elena Barbaro and David Cappelletti and Clara Turetta and Jean-Charles Gallet and Elisabeth Isaksson and Barbara Stenni and Giuliano Dreossi and Federico Scoto and Carlo Barbante and Andrea Spolaor},

doi = {10.1016/j.chemosphere.2020.129335},

issn = {0045-6535},

year  = {2021},

date = {2021-03-00},

urldate = {2021-03-00},

journal = {Chemosphere},

volume = {267},

publisher = {Elsevier BV},

abstract = {Abstract

Fe(II) is more soluble and bioavailable than Fe(III) species, therefore the investigation of their relative abundance and redox processes is relevant to better assess the supply of bioavailable iron to the ocean and its impact on marine productivity. In this context, we present a discrete chemiluminescence-based method for the determination of Fe(II) in firn matrices. The method was applied on discrete samples from a snow pit collected at Dome C (DC, Antarctica) and on a shallow firn core from the Holtedahlfonna glacier (HDF, Svalbard), providing the first Fe(II) record from both Antarctica and Svalbard. The method showed low detection limits (0.006 ng g−1 for DC and 0.003 ng g−1 for the HDF) and a precision ranging from 3% to 20% RSD. Fe(II) concentrations ranged between the LoD and 0.077 ng g−1 and between the LoD and 0.300 ng g−1 for the Antarctic and Arctic samples, respectively. The Fe(II) contribution with respect to the total dissolved Fe was comparable in both sites accounting, on average, for 5% and 3%, respectively. We found that Fe(II) correctly identified the Pinatubo/Cerro Hudson eruption in the DC record, demonstrating its reliability as volcanic tracer, while, on the HDF core, we provided the first preliminary insight on the processes that might influence Fe speciation in firn matrices (i.e. organic ligands and pH influences).},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2021,

title = {Atmospheric iron supply and marine productivity in the glacial North Pacific Ocean},

author = {François Burgay and Andrea Spolaor and Jacopo Gabrieli and Giulio Cozzi and Clara Turetta and Paul Vallelonga and Carlo Barbante},

doi = {10.5194/cp-17-491-2021},

issn = {1814-9332},

year  = {2021},

date = {2021-00-00},

urldate = {2021-00-00},

journal = {Clim. Past},

volume = {17},

number = {1},

pages = {491--505},

publisher = {Copernicus GmbH},

abstract = {Abstract

Iron (Fe) is a key element in the Earth climate system, as it can enhance marine primary productivity in the high-nutrient low-chlorophyll (HNLC) regions where, despite a high concentration of major nutrients, chlorophyll production is low due to iron limitation. Eolian mineral dust represents one of the main Fe sources to the oceans; thus, quantifying its variability over the last glacial cycle is crucial to evaluate its role in strengthening the biological carbon pump. Polar ice cores, which preserve detailed climate records in their stratigraphy, provide a sensitive and continuous archive for reconstructing past eolian Fe fluxes. Here, we show the Northern Hemisphere Fe record retrieved from the NEEM ice core (Greenland), which offers a unique opportunity to reconstruct the past Fe fluxes in a portion of the Arctic over the last 108 kyr. Holocene Fe fluxes (0.042–11.7 ka, 0.5 mg m−2 yr−1) at the NEEM site were 4 times lower than the average recorded over the last glacial period (11.7–108 ka, 2.0 mg m−2 yr−1), whereas they were greater during the Last Glacial Maximum (LGM; 14.5–26.5 ka, 3.6 mg m−2 yr−1) and Marine Isotope Stage 4 (MIS 4; 60–71 ka, 5.8 mg m−2 yr−1). Comparing the NEEM Fe record with paleoceanographic records retrieved from the HNLC North Pacific, we found that the coldest periods, characterized by the highest Fe fluxes, were distinguished by low marine primary productivity in the subarctic Pacific Ocean, likely due to the greater sea ice extent and the absence of major nutrients upwelling. This supports the hypothesis that Fe fertilization during colder and dustier periods (i.e., LGM and MIS 4) was more effective in other regions, such as the midlatitude North Pacific, where a closer relationship between marine productivity and the NEEM Fe fluxes was observed.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Nardin2021,

title = {Dating of the GV7 East Antarctic ice core by high-resolution chemical records and focus on the accumulation rate variability in the last millennium},

author = {Raffaello Nardin and Mirko Severi and Alessandra Amore and Silvia Becagli and Francois Burgay and Laura Caiazzo and Virginia Ciardini and Giuliano Dreossi and Massimo Frezzotti and Sang-Bum Hong and Ishaq Khan and Bianca Maria Narcisi and Marco Proposito and Claudio Scarchilli and Enricomaria Selmo and Andrea Spolaor and Barbara Stenni and Rita Traversi},

doi = {10.5194/cp-17-2073-2021},

issn = {1814-9332},

year  = {2021},

date = {2021-00-00},

urldate = {2021-00-00},

journal = {Clim. Past},

volume = {17},

number = {5},

pages = {2073--2089},

publisher = {Copernicus GmbH},

abstract = {Abstract

Ice core dating is the first step for a correct interpretation of climatic and environmental changes. In this work, we release the dating of the uppermost 197 m of the 250 m deep GV7(B) ice core (drill site, 70∘41′ S, 158∘52′ E; 1950 m a.s.l. in Oates Land, East Antarctica) with a sub-annual resolution.  hemical records of NO3-, MSA (methanesulfonic acid), non-sea-salt SO42- (nssSO42-), sea-salt ions and water stable isotopes (δ18O) were studied as candidates for dating due to their seasonal pattern. Different procedures were tested but the nssSO42- record proved to be the most reliable on the short- and long-term scales, so it was chosen for annual layer counting along the whole ice core. The dating was constrained by using volcanic signatures from historically known events as tie points, thus providing an accurate age–depth relationship for the period 1179–2009 CE. The achievement of the complete age scale allowed us to calculate the annual mean accumulation rate throughout the analyzed 197 m of the core, yielding an annually resolved history of the snow accumulation on site in the last millennium. A small yet consistent rise in accumulation rate (Tr = 1.6, p<0.001) was found for the last 830 years starting around mid-18th century.</jats:p>},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2020,

title = {Geochemical characterization of a marine sediment core from the Joides Basin, Ross Sea, Antarctica},

author = {F. Burgay and O. Abollino and S. Buoso and E. Costa and A. Giacomino and C. La Gioia and S. Fraterrigo Garofalo and G. Pecoraro and M. Malandrino},

doi = {10.1016/j.margeo.2020.106286},

issn = {0025-3227},

year  = {2020},

date = {2020-10-00},

urldate = {2020-10-00},

journal = {Marine Geology},

volume = {428},

publisher = {Elsevier BV},

abstract = {Abstract

The chemical fractionation of ten metals (Al, Ti, Cr, Fe, Cd, Cu, Mn, Pb, Zn and Ni) is reported for a marine sediment collected in the Joides Basin, Ross Sea, Antarctica. To evaluate their mobility and availability, the BCR sequential extraction procedure was applied on 11 sections of the sediment. The analyses, performed both by ICP-OES and GF-AAS, highlighted that most of the elements were in the residual phase, showing a strong binding with the matrix and a low availability. The BCR sequential procedure allowed us to have an insight into the chemical properties of the sediment and provided useful information about the redox state of the sediment itself and important indication on the availability and partitioning of different metals. A chemometric treatment was applied on the dataset and it showed a separation between the superficial and the deep sections of the core, the first being more influenced by the presence of Mn and the second by an increase in Al, Ti, Fe, Cr and Pb concentrations.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Burgay2019,

title = {Fe2+ in ice cores as a new potential proxy to detect past volcanic eruptions},

author = {François Burgay and Tobias Erhardt and Damiano Della Lunga and Camilla Marie Jensen and Andrea Spolaor and Paul Vallelonga and Hubertus Fischer and Carlo Barbante},

doi = {10.1016/j.scitotenv.2018.11.075},

issn = {0048-9697},

year  = {2019},

date = {2019-03-00},

urldate = {2019-03-00},

journal = {Science of The Total Environment},

volume = {654},

pages = {1110--1117},

publisher = {Elsevier BV},

abstract = {Abstract

Volcanic eruptions are widely used in ice core science to date or synchronize ice cores. Volcanoes emit large amounts of SO2 that is subsequently converted in the atmosphere into sulfuric acid/sulphate. Its discrete and continuous quantification is currently used to determine the ice layers impacted by volcanic emissions, but available high-resolution sulphate quantification methods in ice core (Continuous Flow Analysis (CFA)) struggle with insufficient sensitivity. Here, we present a new high-resolution CFA chemiluminescence method for the continuous determination of Fe2+ species in ice cores that shows clear Fe2+ peaks concurrent with volcanic sulphate peaks in the ice core record. The method, applied on a Greenland ice core, correctly identifies all volcanic eruptions from between 1588 to 1611 and from 1777 to 1850. The method has a detection limit of ∽5 pg g−1 and a quadratic polynomial calibration range of up to at least 1760 pg g−1. Our results show that Fe2+ is a suitable proxy for identifying past volcanic events.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Vecchiato2018,

title = {Fragrances and PAHs in snow and seawater of Ny-Ålesund (Svalbard): Local and long-range contamination},

author = {Marco Vecchiato and Elena Barbaro and Andrea Spolaor and Francois Burgay and Carlo Barbante and Rossano Piazza and Andrea Gambaro},

doi = {10.1016/j.envpol.2018.07.095},

issn = {0269-7491},

year  = {2018},

date = {2018-11-00},

urldate = {2018-11-00},

journal = {Environmental Pollution},

volume = {242},

pages = {1740--1747},

publisher = {Elsevier BV},

abstract = {Abstract

Polar regions are fragile ecosystems threatened by both long-range pollution and local human contamination. In this context, the environmental distribution of the Personal Care Products (PCPs) represent a major knowledge gap. Following preliminary Antarctic studies, Fragrance Materials (FMs) were analyzed in the seawater and snow collected in the area of Ny-Ålesund, Svalbard, to investigate local and long-range contamination. Polycyclic Aromatic Hydrocarbons (PAHs), including Retene, were determined in parallel to help the identification of the governing processes. Concentrations of FMs up to 72 ng L−1 were detected in the surface snow near the settlement and at increasing distances, in relation to the prevailing winds. PAHs follow a similar scheme, with levels of Retene up to 1.8 μg L−1, likely deriving from the occurrence of this compound in the coal dust due to the previous mining activities in the area. The snow seasonal deposition of FMs and PAHs was estimated in a snowpit dug at the top of the Austre Brøggerbreen glacier, indicating the long-range atmospheric transport (LRAT) of these compounds.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}