Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station
The radiative balance in the Arctic region is sensitive to in-cloud processes, which principally depend on atmospheric aerosols, including ice nucleating particles (INPs). High temperature INPs (active at ≥-15 °C) are common in the Arctic. While laboratory and limited in situ studies show that the h...
Published in: | Environmental Science & Technology |
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2019
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Online Access: | https://pure.au.dk/portal/da/publications/biogenic-sources-of-ice-nucleating-particles-at-the-high-arctic-site-villum-research-station(beddf2b0-af10-4d2b-8343-453a664bf59f).html https://doi.org/10.1021/acs.est.9b00991 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/beddf2b0-af10-4d2b-8343-453a664bf59f 2023-05-15T14:25:45+02:00 Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station Santl-Temkiv, Tina Lange, Robert Beddows, David Rauter, Urška Pilgaard, Stephanie Dall'Osto, Manuel Gunde-Cimerman, Nina Massling, Andreas Wex, Heike 2019 https://pure.au.dk/portal/da/publications/biogenic-sources-of-ice-nucleating-particles-at-the-high-arctic-site-villum-research-station(beddf2b0-af10-4d2b-8343-453a664bf59f).html https://doi.org/10.1021/acs.est.9b00991 eng eng info:eu-repo/semantics/restrictedAccess Santl-Temkiv , T , Lange , R , Beddows , D , Rauter , U , Pilgaard , S , Dall'Osto , M , Gunde-Cimerman , N , Massling , A & Wex , H 2019 , ' Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station ' , Environmental Science & Technology , vol. 53 , no. 18 , pp. 10580-10590 . https://doi.org/10.1021/acs.est.9b00991 article 2019 ftuniaarhuspubl https://doi.org/10.1021/acs.est.9b00991 2023-02-01T23:55:45Z The radiative balance in the Arctic region is sensitive to in-cloud processes, which principally depend on atmospheric aerosols, including ice nucleating particles (INPs). High temperature INPs (active at ≥-15 °C) are common in the Arctic. While laboratory and limited in situ studies show that the high-temperature active INPs are associated with bioaerosols and biogenic compounds, there is still little quantitative insight into the Arctic biogenic INPs and bioaerosols. We measured concentrations of bioaerosols, bacteria, and biogenic INPs at the Villum Research Station (VRS, Station Nord) in a large number of snow (15) and air (51) samples. We found that INPs active at high subzero temperatures were present both in spring and summer. Air INP concentrations were higher in summer (18 INP m-3 at ≥-10 °C) than in spring (<4 INP m-3 at ≥-10 °C), when abundant INPs were found in snowfall (1.4 INP mL-1 at ≥-10 °C). Also, in summer, a significantly higher number of microbial and bacterial cells were present compared to the spring. A large proportion (60%-100%) of INPs that were active between -6 °C and -20 °C could be deactivated by heating to 100 °C, which was indicative of their predominantly proteinaceous origin. In addition, there was a significant linear regression between the summer air concentrations of INPs active at ≥-10 °C and air concentrations of bacterial-marker-genes (p < 0.0001, R2 = 0.999, n = 6), pointing at bacterial cells as the source of high-temperature active INPs. In conclusion, the majority of INPs was of proteinaceous, and possibly of bacterial, origin and was found in air during summer and in snowfall during springtime. Article in Journal/Newspaper Arctic Arctic Aarhus University: Research Arctic Station Nord ENVELOPE(-16.663,-16.663,81.599,81.599) Environmental Science & Technology 53 18 10580 10590 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
description |
The radiative balance in the Arctic region is sensitive to in-cloud processes, which principally depend on atmospheric aerosols, including ice nucleating particles (INPs). High temperature INPs (active at ≥-15 °C) are common in the Arctic. While laboratory and limited in situ studies show that the high-temperature active INPs are associated with bioaerosols and biogenic compounds, there is still little quantitative insight into the Arctic biogenic INPs and bioaerosols. We measured concentrations of bioaerosols, bacteria, and biogenic INPs at the Villum Research Station (VRS, Station Nord) in a large number of snow (15) and air (51) samples. We found that INPs active at high subzero temperatures were present both in spring and summer. Air INP concentrations were higher in summer (18 INP m-3 at ≥-10 °C) than in spring (<4 INP m-3 at ≥-10 °C), when abundant INPs were found in snowfall (1.4 INP mL-1 at ≥-10 °C). Also, in summer, a significantly higher number of microbial and bacterial cells were present compared to the spring. A large proportion (60%-100%) of INPs that were active between -6 °C and -20 °C could be deactivated by heating to 100 °C, which was indicative of their predominantly proteinaceous origin. In addition, there was a significant linear regression between the summer air concentrations of INPs active at ≥-10 °C and air concentrations of bacterial-marker-genes (p < 0.0001, R2 = 0.999, n = 6), pointing at bacterial cells as the source of high-temperature active INPs. In conclusion, the majority of INPs was of proteinaceous, and possibly of bacterial, origin and was found in air during summer and in snowfall during springtime. |
format |
Article in Journal/Newspaper |
author |
Santl-Temkiv, Tina Lange, Robert Beddows, David Rauter, Urška Pilgaard, Stephanie Dall'Osto, Manuel Gunde-Cimerman, Nina Massling, Andreas Wex, Heike |
spellingShingle |
Santl-Temkiv, Tina Lange, Robert Beddows, David Rauter, Urška Pilgaard, Stephanie Dall'Osto, Manuel Gunde-Cimerman, Nina Massling, Andreas Wex, Heike Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
author_facet |
Santl-Temkiv, Tina Lange, Robert Beddows, David Rauter, Urška Pilgaard, Stephanie Dall'Osto, Manuel Gunde-Cimerman, Nina Massling, Andreas Wex, Heike |
author_sort |
Santl-Temkiv, Tina |
title |
Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
title_short |
Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
title_full |
Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
title_fullStr |
Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
title_full_unstemmed |
Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station |
title_sort |
biogenic sources of ice nucleating particles at the high arctic site villum research station |
publishDate |
2019 |
url |
https://pure.au.dk/portal/da/publications/biogenic-sources-of-ice-nucleating-particles-at-the-high-arctic-site-villum-research-station(beddf2b0-af10-4d2b-8343-453a664bf59f).html https://doi.org/10.1021/acs.est.9b00991 |
long_lat |
ENVELOPE(-16.663,-16.663,81.599,81.599) |
geographic |
Arctic Station Nord |
geographic_facet |
Arctic Station Nord |
genre |
Arctic Arctic |
genre_facet |
Arctic Arctic |
op_source |
Santl-Temkiv , T , Lange , R , Beddows , D , Rauter , U , Pilgaard , S , Dall'Osto , M , Gunde-Cimerman , N , Massling , A & Wex , H 2019 , ' Biogenic Sources of Ice Nucleating Particles at the High Arctic Site Villum Research Station ' , Environmental Science & Technology , vol. 53 , no. 18 , pp. 10580-10590 . https://doi.org/10.1021/acs.est.9b00991 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1021/acs.est.9b00991 |
container_title |
Environmental Science & Technology |
container_volume |
53 |
container_issue |
18 |
container_start_page |
10580 |
op_container_end_page |
10590 |
_version_ |
1766298220460244992 |