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Analytical environment chemist currently undertaking a PhD at Aarhus University in Denmark. My research focusing on processes and sources of pollutants in the High Arctic.
Introduction
The Arctic region is particularly sensitive to global climate change, experiencing warming at twice the rate of the global average. Anthropogenic pollution (e.g. aerosols, black carbon, ozone, and greenhouse gases), which to a large extent originates from the mid-latitudes, is suspected to be partly responsible for this warming. Atmospheric aerosols can alter the planetary radiation balance directly through scattering and absorption and indirectly through modification of cloud properties. These interactions depend on aerosol physicochemical properties. The Arctic cryosphere and atmosphere has undergone significant changes in recent decades, accompanied by reductions in anthropogenic emissions, especially in Europe and North America. These changes have important ramifications for the ambient Arctic aerosol. Understanding the direction and magnitude of recent changes in the Arctic aerosol population is key to elucidating the implications for the changing Arctic, although this remains a scientific challenge. Here we report recent trends for aerosol particle physical properties, which will aid in this understanding of the changing Arctic.
Measurement Site & Methods
All measurements were obtained at Villum Research Station (Villum, N 81o36’ W 16o39’ 24 m a.s.l) in northeastern Greenland. Particle number size distributions (PNSD) were measured using a Scanning Mobility Particle Sizer (SMPS) from 2010–2018.
We have utilized mode fitting on daily averaged PNSDs to characterize three distinct modes (Nucleation, Aitken, and Accumulation) along with geometric mean diameters (GMD) and number concentrations (PN) for each mode.
The trends in these parameters were identified and quantified using the Mann-Kendal test and Theil Sen slope on the 90th % confidence interval. Trends in different months were analyzed using daily modal parameters.
Results
Statistically significant (s.s.) decreasing trends were detected for the Nucleation and Aitken modes GMDs in the winter, spring, and summer, with the only s.s. increasing trends occurring in the autumn. The Accumulation mode GMD showed a s.s. decrease in the spring and s.s. increase in the summer. For the PN of each mode, large s.s. increasing trends were detected for Nucleation and Aitken mode PN in the spring and summer. The Accumulation mode PN showed a small s.s. increase in the summer and a large s.s. decrease in the autumn.
These results show that ultrafine modes (Nucleation and Aitken) are decreasing in diameter while simultaneously increasing in number concentration. These trends are most likely related to changes in sea ice extent, as previous research has indicated a negative correlation between new particle formation and sea ice extent. The decrease in Accumulation mode GMD in spring (during the peak of the Arctic Haze) is possibly related to decreases in anthropogenic emissions, while the increase PN during summer could signal an increase in primary biogenic aerosol emissions from the ocean surface. The large decrease in Accumulation mode PN during autumn requires further investigation.
This work will help confirm trends of other aerosol components observed at other High Arctic sites and can offer insight into the climatic implications (i.e., radiative balance and cloud properties) for a future Arctic climate.
Jakob Pernov; Henrik Skov; Daniel Thomas; Andreas Massling. Trend analysis of aerosol particle physical properties at Villum Research Station, Northern Greenland. 2021, 1 .
AMA StyleJakob Pernov, Henrik Skov, Daniel Thomas, Andreas Massling. Trend analysis of aerosol particle physical properties at Villum Research Station, Northern Greenland. . 2021; ():1.
Chicago/Turabian StyleJakob Pernov; Henrik Skov; Daniel Thomas; Andreas Massling. 2021. "Trend analysis of aerosol particle physical properties at Villum Research Station, Northern Greenland." , no. : 1.
There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a multiseason dataset of highly time-resolved VOC measurements in the High Arctic from April to October 2018. We have utilized a combination of measurement and modeling techniques to characterize the mixing ratios, temporal patterns, and sources of VOCs at the Villum Research Station at Station Nord in northeastern Greenland. Atmospheric VOCs were measured using proton-transfer-reaction time-of-flight mass spectrometry. Ten ions were selected for source apportionment with the positive matrix factorization (PMF) receptor model. A four-factor solution to the PMF model was deemed optimal. The factors identified were biomass burning, marine cryosphere, background, and Arctic haze. The biomass burning factor described the variation of acetonitrile and benzene and peaked during August and September. The marine cryosphere factor was comprised of carboxylic acids (formic, acetic, and C3H6O2) as well as dimethyl sulfide (DMS). This factor displayed peak contributions during periods of snow and sea ice melt. A potential source contribution function (PSCF) showed that the source regions for this factor were the coasts around southeastern and northeastern Greenland. The background factor was temporally ubiquitous, with a slight decrease in the summer. This factor was not driven by any individual chemical species. The Arctic haze factor was dominated by benzene with contributions from oxygenated VOCs. This factor exhibited a maximum in the spring and minima during the summer and autumn. This temporal pattern and species profile are indicative of anthropogenic sources in the midlatitudes. This study provides seasonal characteristics and sources of VOCs and can help elucidate the processes affecting the atmospheric chemistry and biogeochemical feedback mechanisms in the High Arctic.
Jakob B. Pernov; Rossana Bossi; Thibaut Lebourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment. Atmospheric Chemistry and Physics 2021, 21, 2895 -2916.
AMA StyleJakob B. Pernov, Rossana Bossi, Thibaut Lebourgeois, Jacob K. Nøjgaard, Rupert Holzinger, Jens L. Hjorth, Henrik Skov. Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment. Atmospheric Chemistry and Physics. 2021; 21 (4):2895-2916.
Chicago/Turabian StyleJakob B. Pernov; Rossana Bossi; Thibaut Lebourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. 2021. "Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment." Atmospheric Chemistry and Physics 21, no. 4: 2895-2916.
Jakob Boyd Pernov; Bjarne Jensen; Andreas Massling; Daniel Charles Thomas; Henrik Skov. Supplementary material to "Dynamics of gaseous oxidized mercury at Villum Research Station during the High Arctic summer". 2021, 1 .
AMA StyleJakob Boyd Pernov, Bjarne Jensen, Andreas Massling, Daniel Charles Thomas, Henrik Skov. Supplementary material to "Dynamics of gaseous oxidized mercury at Villum Research Station during the High Arctic summer". . 2021; ():1.
Chicago/Turabian StyleJakob Boyd Pernov; Bjarne Jensen; Andreas Massling; Daniel Charles Thomas; Henrik Skov. 2021. "Supplementary material to "Dynamics of gaseous oxidized mercury at Villum Research Station during the High Arctic summer"." , no. : 1.
Jakob Pernov. Response to referee 1. 2020, 1 .
AMA StyleJakob Pernov. Response to referee 1. . 2020; ():1.
Chicago/Turabian StyleJakob Pernov. 2020. "Response to referee 1." , no. : 1.
Formaldehyde (HCHO) and nitrogen dioxide (NO2) often co-exist in urban environments at levels that are hazardous to health. There is a demand for a solution to the problem of their combined removal. In this paper, we investigate catalysts, adsorbents and composites for their removal efficiency (RE) toward HCHO and NO2, in the context of creating a pollution control device (PCD). Proton-transfer-reaction mass spectrometry and cavity ring-down spectrometry are used to measure HCHO, and chemiluminescence and absorbance-based monitors for NO2. Commercially available and lab-synthesized materials are tested under relevant conditions. None of the commercial adsorbents are effective for HCHO removal, whereas two metal oxide-based catalysts are highly effective, with REs of 81 ± 4% and 82 ± 1%, an improvement on previous materials tested under similar conditions. The best performing material for combined removal is a novel composite consisting of a noble metal catalyst supported on a metal oxide, combined with a treated active carbon adsorbent. The composite is theorized to work synergistically to physisorb and oxidize HCHO and chemisorb NO2. It has an HCHO RE of 72 ± 2% and an NO2 RE of 96 ± 2%. This material has potential as the active component in PCDs used to reduce personal pollution exposure.
Hugo S. Russell; James Bonomaully; Rossana Bossi; Magdalena E. G. Hofmann; Hasse C. Knap; Jakob B. Pernov; Marten In ‘T Veld; Matthew S. Johnson. Novel Materials for Combined Nitrogen Dioxide and Formaldehyde Pollution Control under Ambient Conditions. Catalysts 2020, 10, 1040 .
AMA StyleHugo S. Russell, James Bonomaully, Rossana Bossi, Magdalena E. G. Hofmann, Hasse C. Knap, Jakob B. Pernov, Marten In ‘T Veld, Matthew S. Johnson. Novel Materials for Combined Nitrogen Dioxide and Formaldehyde Pollution Control under Ambient Conditions. Catalysts. 2020; 10 (9):1040.
Chicago/Turabian StyleHugo S. Russell; James Bonomaully; Rossana Bossi; Magdalena E. G. Hofmann; Hasse C. Knap; Jakob B. Pernov; Marten In ‘T Veld; Matthew S. Johnson. 2020. "Novel Materials for Combined Nitrogen Dioxide and Formaldehyde Pollution Control under Ambient Conditions." Catalysts 10, no. 9: 1040.
The role of polar regions is increasing in terms of megatrends such as globalization, new transport routes, demography, and the use of natural resources with consequent effects on regional and transported pollutant concentrations. We set up the ERA-PLANET Strand 4 project “iCUPE – integrative and Comprehensive Understanding on Polar Environments” to provide novel insights and observational data on global grand challenges with an Arctic focus. We utilize an integrated approach combining in situ observations, satellite remote sensing Earth observations (EOs), and multi-scale modeling to synthesize data from comprehensive long-term measurements, intensive campaigns, and satellites to deliver data products, metrics, and indicators to stakeholders concerning the environmental status, availability, and extraction of natural resources in the polar areas. The iCUPE work consists of thematic state-of-the-art research and the provision of novel data in atmospheric pollution, local sources and transboundary transport, the characterization of arctic surfaces and their changes, an assessment of the concentrations and impacts of heavy metals and persistent organic pollutants and their cycling, the quantification of emissions from natural resource extraction, and the validation and optimization of satellite Earth observation (EO) data streams. In this paper we introduce the iCUPE project and summarize initial results arising out of the integration of comprehensive in situ observations, satellite remote sensing, and multi-scale modeling in the Arctic context.
Tuukka Petäjä; Ella-Maria Duplissy; Ksenia Tabakova; Julia Schmale; Barbara Altstädter; Gerard Ancellet; Mikhail Arshinov; Yurii Balin; Urs Baltensperger; Jens Bange; Alison Beamish; Boris Belan; Antoine Berchet; Rossana Bossi; Warren R. L. Cairns; Ralf Ebinghaus; Imad El Haddad; Beatriz Ferreira-Araujo; Anna Franck; Lin Huang; Antti Hyvärinen; Angelika Humbert; Athina-Cerise Kalogridis; Pavel Konstantinov; Astrid Lampert; Matthew MacLeod; Olivier Magand; Alexander Mahura; Louis Marelle; Vladimir Masloboev; Dmitri Moisseev; Vaios Moschos; Niklas Neckel; Tatsuo Onishi; Stefan Osterwalder; Aino Ovaska; Pauli Paasonen; Mikhail Panchenko; Fidel Pankratov; Jakob B. Pernov; Andreas Platis; Olga Popovicheva; Jean-Christophe Raut; Aurélie Riandet; Torsten Sachs; Rosamaria Salvatori; Roberto Salzano; Ludwig Schröder; Martin Schön; Vladimir Shevchenko; Henrik Skov; Jeroen E. Sonke; Andrea Spolaor; Vasileios K. Stathopoulos; Mikko Strahlendorff; Jennie L. Thomas; Vito Vitale; Sterios Vratolis; Carlo Barbante; Sabine Chabrillat; Aurélien Dommergue; Konstantinos Eleftheriadis; Jyri Heilimo; Kathy S. Law; Andreas Massling; Steffen M. Noe; Jean-Daniel Paris; André S. H. Prévôt; Ilona Riipinen; Birgit Wehner; Zhiyong Xie; Hanna K. Lappalainen. Overview: Integrative and Comprehensive Understanding on Polar Environments (iCUPE) – concept and initial results. Atmospheric Chemistry and Physics 2020, 20, 8551 -8592.
AMA StyleTuukka Petäjä, Ella-Maria Duplissy, Ksenia Tabakova, Julia Schmale, Barbara Altstädter, Gerard Ancellet, Mikhail Arshinov, Yurii Balin, Urs Baltensperger, Jens Bange, Alison Beamish, Boris Belan, Antoine Berchet, Rossana Bossi, Warren R. L. Cairns, Ralf Ebinghaus, Imad El Haddad, Beatriz Ferreira-Araujo, Anna Franck, Lin Huang, Antti Hyvärinen, Angelika Humbert, Athina-Cerise Kalogridis, Pavel Konstantinov, Astrid Lampert, Matthew MacLeod, Olivier Magand, Alexander Mahura, Louis Marelle, Vladimir Masloboev, Dmitri Moisseev, Vaios Moschos, Niklas Neckel, Tatsuo Onishi, Stefan Osterwalder, Aino Ovaska, Pauli Paasonen, Mikhail Panchenko, Fidel Pankratov, Jakob B. Pernov, Andreas Platis, Olga Popovicheva, Jean-Christophe Raut, Aurélie Riandet, Torsten Sachs, Rosamaria Salvatori, Roberto Salzano, Ludwig Schröder, Martin Schön, Vladimir Shevchenko, Henrik Skov, Jeroen E. Sonke, Andrea Spolaor, Vasileios K. Stathopoulos, Mikko Strahlendorff, Jennie L. Thomas, Vito Vitale, Sterios Vratolis, Carlo Barbante, Sabine Chabrillat, Aurélien Dommergue, Konstantinos Eleftheriadis, Jyri Heilimo, Kathy S. Law, Andreas Massling, Steffen M. Noe, Jean-Daniel Paris, André S. H. Prévôt, Ilona Riipinen, Birgit Wehner, Zhiyong Xie, Hanna K. Lappalainen. Overview: Integrative and Comprehensive Understanding on Polar Environments (iCUPE) – concept and initial results. Atmospheric Chemistry and Physics. 2020; 20 (14):8551-8592.
Chicago/Turabian StyleTuukka Petäjä; Ella-Maria Duplissy; Ksenia Tabakova; Julia Schmale; Barbara Altstädter; Gerard Ancellet; Mikhail Arshinov; Yurii Balin; Urs Baltensperger; Jens Bange; Alison Beamish; Boris Belan; Antoine Berchet; Rossana Bossi; Warren R. L. Cairns; Ralf Ebinghaus; Imad El Haddad; Beatriz Ferreira-Araujo; Anna Franck; Lin Huang; Antti Hyvärinen; Angelika Humbert; Athina-Cerise Kalogridis; Pavel Konstantinov; Astrid Lampert; Matthew MacLeod; Olivier Magand; Alexander Mahura; Louis Marelle; Vladimir Masloboev; Dmitri Moisseev; Vaios Moschos; Niklas Neckel; Tatsuo Onishi; Stefan Osterwalder; Aino Ovaska; Pauli Paasonen; Mikhail Panchenko; Fidel Pankratov; Jakob B. Pernov; Andreas Platis; Olga Popovicheva; Jean-Christophe Raut; Aurélie Riandet; Torsten Sachs; Rosamaria Salvatori; Roberto Salzano; Ludwig Schröder; Martin Schön; Vladimir Shevchenko; Henrik Skov; Jeroen E. Sonke; Andrea Spolaor; Vasileios K. Stathopoulos; Mikko Strahlendorff; Jennie L. Thomas; Vito Vitale; Sterios Vratolis; Carlo Barbante; Sabine Chabrillat; Aurélien Dommergue; Konstantinos Eleftheriadis; Jyri Heilimo; Kathy S. Law; Andreas Massling; Steffen M. Noe; Jean-Daniel Paris; André S. H. Prévôt; Ilona Riipinen; Birgit Wehner; Zhiyong Xie; Hanna K. Lappalainen. 2020. "Overview: Integrative and Comprehensive Understanding on Polar Environments (iCUPE) – concept and initial results." Atmospheric Chemistry and Physics 20, no. 14: 8551-8592.
There are few long-term datasets of volatile organic compounds (VOCs) in the High Arctic. Furthermore, knowledge about their source regions remains lacking. To address this matter, we report a long-term dataset of highly time-resolved VOC measurements in the High Arctic from April to October 2018. We have utilized a combination of measurement and modeling techniques to characterize the mixing ratios, temporal patterns, and sources of VOCs at Villum Research Station at Station Nord, in Northeast Greenland. Atmospheric VOCs were measured using Proton Transfer-Time of Flight-Mass Spectrometry (PTR-ToF-MS). Ten ions were selected for source apportionment with the receptor model, positive matrix factorization (PMF). A four-factor solution to the PMF model was deemed optimal. The factors identified were Biomass Burning, Marine Cryosphere, Background, and Arctic Haze. The Biomass Burning factor described the variation of acetonitrile and benzene. Back trajectory analysis indicated the influence of active fires in North America and Eurasia. The Marine Cryosphere factor was comprised of carboxylic acids (formic, acetic, and propionic acid) as well as dimethyl sulfide (DMS). This factor displayed a clear diurnal profile during periods of snow and sea ice melt. Back trajectories showed that the source regions for this factor were the coasts around North Greenland and the Arctic Ocean. The Background factor was temporally ubiquitous, with a slight decrease in the summer. This factor was not driven by any individual chemical species. The Arctic Haze factor was dominated by benzene with contributions from oxygenated VOCs. This factor exhibited a maximum in the spring and minima during the summer and autumn. This temporal pattern and species profile are indicative of anthropogenic sources in the mid-latitudes. This study provides seasonal characteristics and sources of VOCs and can help elucidate the processes affecting the atmospheric chemistry and biogeochemical feedback mechanisms in the High Arctic.
Jakob B. Pernov; Rossana Bossi; Thibaut Lebourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment. 2020, 2020, 1 -36.
AMA StyleJakob B. Pernov, Rossana Bossi, Thibaut Lebourgeois, Jacob K. Nøjgaard, Rupert Holzinger, Jens L. Hjorth, Henrik Skov. Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment. . 2020; 2020 ():1-36.
Chicago/Turabian StyleJakob B. Pernov; Rossana Bossi; Thibaut Lebourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. 2020. "Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment." 2020, no. : 1-36.
Jakob B. Pernov; Rossana Bossi; Thibaut LeBourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. Supplementary material to "Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment". 2020, 1 .
AMA StyleJakob B. Pernov, Rossana Bossi, Thibaut LeBourgeois, Jacob K. Nøjgaard, Rupert Holzinger, Jens L. Hjorth, Henrik Skov. Supplementary material to "Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment". . 2020; ():1.
Chicago/Turabian StyleJakob B. Pernov; Rossana Bossi; Thibaut LeBourgeois; Jacob K. Nøjgaard; Rupert Holzinger; Jens L. Hjorth; Henrik Skov. 2020. "Supplementary material to "Atmospheric VOC measurements at a High Arctic site: characteristics and source apportionment"." , no. : 1.
The role of polar regions increases in terms of megatrends such as globalization, new transport routes, demography and use of natural resources consequent effects of regional and transported pollutant concentrations. We set up the ERA-PLANET Strand 4 project iCUPE – integrative and Comprehensive Understanding on Polar Environments to provide novel insights and observational data on global grand challenges with an Arctic focus. We utilize an integrated approach combining in situ observations, satellite remote sensing Earth Observations (EO) and multi-scale modeling to synthesize data from comprehensive long-term measurements, intensive campaigns and satellites to deliver data products, metrics and indicators to the stakeholders concerning the environmental status, availability and extraction of natural resources in the polar areas. The iCUPE work consists of thematic state-of-the-art research and provision of novel data in atmospheric pollution, local sources and transboundary transport, characterization of arctic surfaces and their changes, assessment of concentrations and impacts of heavy metals and persistent organic pollutants and their cycling, quantification of emissions from natural resource extraction and validation and optimization of satellite Earth Observation (EO) data streams. In this paper we introduce the iCUPE project and summarize initial results arising out of integration of comprehensive in situ observations, satellite remote sensing and multiscale modeling in the Arctic context.
Tuukka Petäjä; Ella-Maria Duplissy; Ksenia Tabakova; Julia Schmale; Barbara Altstädter; Gerard Ancellet; Mikhail Arshinov; Yrii Balin; Urs Baltensperger; Jens Bange; Alison Beamish; Boris Belan; Antoine Berchet; Rossana Bossi; Warren R. L. Cairns; Ralf Ebinghaus; Imad El Haddad; Beatriz Ferreira-Araujo; Anna Franck; Lin Huang; Antti Hyvärinen; Angelika Humbert; Athina-Cerise Kalogridis; Pavel Kontantinov; Astrid Lampert; Matthew MacLeod; Olivier Magand; Alexander Mahura; Louis Marelle; Vladimir Masloboev; Dmitri Moisseev; Vaios Moschos; Niklas Neckel; Tatsuo Onishi; Stefan Osterwalder; Aino Ovaska; Pauli Paasonen; Mikhail Panchenko; Fidel Pankratov; Jakob B. Pernov; Andreas Platis; Olga Popovicheva; Jean-Christophe Raut; Aurélie Riandet; Torsten Sachs; Rosamaria Salvatori; Roberto Salzano; Ludwig Schröder; Martin Schön; Vladimir Shevchenko; Henrik Skov; Jeroen E. Sonke; Andrea Spolaor; Vasileios Stathopoulos; Mikko Strahlendorff; Jennie L. Thomas; Vito Vitale; Sterios Vratolis; Carlo Barbante; Sabine Chabrillat; Aurélien Dommergue; Konstantinos Eleftheriadis; Jyri Heilimö; Kathy S. Law; Andreas Massling; Steffen M. Noe; Jean-Daniel Paris; André Prévôt; Ilona Riipinen; Birgit Wehner; Zhiyong Xie; Hanna K. Lappalainen. Integrative and comprehensive Understanding on Polar Environments (iCUPE): the concept and initial results. 2020, 2020, 1 -62.
AMA StyleTuukka Petäjä, Ella-Maria Duplissy, Ksenia Tabakova, Julia Schmale, Barbara Altstädter, Gerard Ancellet, Mikhail Arshinov, Yrii Balin, Urs Baltensperger, Jens Bange, Alison Beamish, Boris Belan, Antoine Berchet, Rossana Bossi, Warren R. L. Cairns, Ralf Ebinghaus, Imad El Haddad, Beatriz Ferreira-Araujo, Anna Franck, Lin Huang, Antti Hyvärinen, Angelika Humbert, Athina-Cerise Kalogridis, Pavel Kontantinov, Astrid Lampert, Matthew MacLeod, Olivier Magand, Alexander Mahura, Louis Marelle, Vladimir Masloboev, Dmitri Moisseev, Vaios Moschos, Niklas Neckel, Tatsuo Onishi, Stefan Osterwalder, Aino Ovaska, Pauli Paasonen, Mikhail Panchenko, Fidel Pankratov, Jakob B. Pernov, Andreas Platis, Olga Popovicheva, Jean-Christophe Raut, Aurélie Riandet, Torsten Sachs, Rosamaria Salvatori, Roberto Salzano, Ludwig Schröder, Martin Schön, Vladimir Shevchenko, Henrik Skov, Jeroen E. Sonke, Andrea Spolaor, Vasileios Stathopoulos, Mikko Strahlendorff, Jennie L. Thomas, Vito Vitale, Sterios Vratolis, Carlo Barbante, Sabine Chabrillat, Aurélien Dommergue, Konstantinos Eleftheriadis, Jyri Heilimö, Kathy S. Law, Andreas Massling, Steffen M. Noe, Jean-Daniel Paris, André Prévôt, Ilona Riipinen, Birgit Wehner, Zhiyong Xie, Hanna K. Lappalainen. Integrative and comprehensive Understanding on Polar Environments (iCUPE): the concept and initial results. . 2020; 2020 ():1-62.
Chicago/Turabian StyleTuukka Petäjä; Ella-Maria Duplissy; Ksenia Tabakova; Julia Schmale; Barbara Altstädter; Gerard Ancellet; Mikhail Arshinov; Yrii Balin; Urs Baltensperger; Jens Bange; Alison Beamish; Boris Belan; Antoine Berchet; Rossana Bossi; Warren R. L. Cairns; Ralf Ebinghaus; Imad El Haddad; Beatriz Ferreira-Araujo; Anna Franck; Lin Huang; Antti Hyvärinen; Angelika Humbert; Athina-Cerise Kalogridis; Pavel Kontantinov; Astrid Lampert; Matthew MacLeod; Olivier Magand; Alexander Mahura; Louis Marelle; Vladimir Masloboev; Dmitri Moisseev; Vaios Moschos; Niklas Neckel; Tatsuo Onishi; Stefan Osterwalder; Aino Ovaska; Pauli Paasonen; Mikhail Panchenko; Fidel Pankratov; Jakob B. Pernov; Andreas Platis; Olga Popovicheva; Jean-Christophe Raut; Aurélie Riandet; Torsten Sachs; Rosamaria Salvatori; Roberto Salzano; Ludwig Schröder; Martin Schön; Vladimir Shevchenko; Henrik Skov; Jeroen E. Sonke; Andrea Spolaor; Vasileios Stathopoulos; Mikko Strahlendorff; Jennie L. Thomas; Vito Vitale; Sterios Vratolis; Carlo Barbante; Sabine Chabrillat; Aurélien Dommergue; Konstantinos Eleftheriadis; Jyri Heilimö; Kathy S. Law; Andreas Massling; Steffen M. Noe; Jean-Daniel Paris; André Prévôt; Ilona Riipinen; Birgit Wehner; Zhiyong Xie; Hanna K. Lappalainen. 2020. "Integrative and comprehensive Understanding on Polar Environments (iCUPE): the concept and initial results." 2020, no. : 1-62.
Environmental contextThe fresh pleasant smell of laundry dried outside in sunlight is recognised by most people, but despite decades of speculation the origin of the smell has not been demonstrated. We show that the smell of line-dried laundry is due to the unique combination of traces of atmospheric hydrocarbons, sunlight and a wet fabric surface. This surface photochemistry is likely to be widespread in the environment on surfaces of natural materials. AbstractIn this study, we find that the drying method is the key element in generating the well-known fresh scent of line-dried laundry, which we argue demonstrates that it is the result of physical and chemical processes occurring on the surface of the fabric. Cotton towels were rinsed with Milli-Q water and dried outdoors, indoors, and outdoors but not exposed to sunlight. The dried towels were placed in sealed Tedlar bags, and the emitted compounds were analysed by using thermal desorption-gas chromatography/mass spectrometry (TD-GC/MS) to yield qualitative gas chromatograms and mass spectra. We observed a variety of C5 to C9 oxidised carbon compounds (e.g. aldehydes such as pentanal, hexanal, heptanal, octanal, and nonanal) when the towels were dried outside. These compounds are not observed in the other conditions. Many of these compounds have smells that are subjectively found to be pleasant. The experiments indicate that both UV light and the presence of liquid water are necessary to generate the products. The polar nature of the oxidised compounds may explain why the smell of fresh laundry is relatively long-lasting because hydrogen bonds can form between these compounds and cotton fibres. We therefore propose that oxidative photochemistry on the surface of the drying laundry is responsible for the production of the fresh smell.
Silvia Pugliese; Malte Frydenlund Jespersen; Jakob Boyd Pernov; Justin Shenolikar; Jesper Nygaard; Ole John Nielsen; Matthew S. Johnson. Chemical analysis and origin of the smell of line-dried laundry. Environmental Chemistry 2020, 17, 355 .
AMA StyleSilvia Pugliese, Malte Frydenlund Jespersen, Jakob Boyd Pernov, Justin Shenolikar, Jesper Nygaard, Ole John Nielsen, Matthew S. Johnson. Chemical analysis and origin of the smell of line-dried laundry. Environmental Chemistry. 2020; 17 (5):355.
Chicago/Turabian StyleSilvia Pugliese; Malte Frydenlund Jespersen; Jakob Boyd Pernov; Justin Shenolikar; Jesper Nygaard; Ole John Nielsen; Matthew S. Johnson. 2020. "Chemical analysis and origin of the smell of line-dried laundry." Environmental Chemistry 17, no. 5: 355.