Characterization of humic-like substances in Arctic aerosols
Humic-like substances (HULIS) are a complex group of relatively high molecular weight organic compounds which contribute considerably to the mass of organic carbon (OC) and influence the light-absorbing properties of aerosols. In this work, HULIS were investigated for the first time in the high-Arct...
Published in: | Journal of Geophysical Research: Atmospheres |
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Language: | English |
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2014
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Online Access: | https://portal.findresearcher.sdu.dk/da/publications/e632fd20-e344-4383-a1ff-be1223446d5a https://doi.org/10.1002/2013jd020144 |
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ftsydanskunivpub:oai:sdu.dk:publications/e632fd20-e344-4383-a1ff-be1223446d5a 2024-09-15T17:51:05+00:00 Characterization of humic-like substances in Arctic aerosols Nguyen, Q. T. Kristensen, T. B. Hansen, A. M. K. Skov, H. Bossi, R. Massling, A. Sorensen, L. L. Bilde, M. Glasius, M. Nojgaard, J. K. 2014 https://portal.findresearcher.sdu.dk/da/publications/e632fd20-e344-4383-a1ff-be1223446d5a https://doi.org/10.1002/2013jd020144 eng eng https://portal.findresearcher.sdu.dk/da/publications/e632fd20-e344-4383-a1ff-be1223446d5a info:eu-repo/semantics/restrictedAccess Nguyen , Q T , Kristensen , T B , Hansen , A M K , Skov , H , Bossi , R , Massling , A , Sorensen , L L , Bilde , M , Glasius , M & Nojgaard , J K 2014 , ' Characterization of humic-like substances in Arctic aerosols ' , Journal of Geophysical Research: Atmospheres , vol. 119 , no. 8 , pp. 5011-5027 . https://doi.org/10.1002/2013jd020144 HULIS Arctic brown carbon light absorption aerosol mass SOLUBLE ORGANIC-COMPOUNDS TANDEM MASS-SPECTROMETRY SIZE-EXCLUSION CHROMATOGRAPHY MOLECULAR-WEIGHT DISTRIBUTION FINE ATMOSPHERIC AEROSOL BIOMASS-BURNING AEROSOLS ELECTROSPRAY-IONIZATION CHEMICAL-COMPOSITION OPTICAL-PROPERTIES FULVIC-ACIDS article 2014 ftsydanskunivpub https://doi.org/10.1002/2013jd020144 2024-08-19T23:51:22Z Humic-like substances (HULIS) are a complex group of relatively high molecular weight organic compounds which contribute considerably to the mass of organic carbon (OC) and influence the light-absorbing properties of aerosols. In this work, HULIS were investigated for the first time in the high-Arctic atmosphere, focusing on the chemical characterization and mass contribution of HULIS to the total suspended particle (TSP) mass using weekly aerosol samples collected at Station Nord, northeast Greenland every fourth week during 2010. Average HULIS-C concentration was 11ng C m(-3) during the darker months (November-April) and 4ng C m(-3) during the other months (May-October) with an annual mass concentration of 0.020.01 mu gm(-3). HULIS-C contributed to 3-16% of water-soluble organic carbon (WSOC), whereas HULIS accounted for 0.7-4.1% of TSP mass, with TSP typically below 1.0 mu gm(-3). Concentrations of OC, WSOC, HULIS, selected HULIS functional groups (carboxylic acids, aromatic carboxylic acids, and organosulfates) and levoglucosan overlapped with the typical Arctic haze pattern with elevated concentrations during winter to early spring. The aromatic carboxylic acid portion accounted for a larger share of total carboxylic acid of HULIS during the darker months (7%) compared to the brighter months (3%). The more abundant aromatic carboxylic acid functional groups and the moderate correlation between HULIS and levoglucosan concentrations during the darker months both indicate that biomass burning aerosols and thereby emissions of aromatic compounds could contribute to HULIS in the Arctic, especially during late winter. During the brighter months, relatively higher average molecular weight of HULIS was observed. Article in Journal/Newspaper Arctic Greenland University of Southern Denmark Research Portal Journal of Geophysical Research: Atmospheres 119 8 5011 5027 |
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Open Polar |
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University of Southern Denmark Research Portal |
op_collection_id |
ftsydanskunivpub |
language |
English |
topic |
HULIS Arctic brown carbon light absorption aerosol mass SOLUBLE ORGANIC-COMPOUNDS TANDEM MASS-SPECTROMETRY SIZE-EXCLUSION CHROMATOGRAPHY MOLECULAR-WEIGHT DISTRIBUTION FINE ATMOSPHERIC AEROSOL BIOMASS-BURNING AEROSOLS ELECTROSPRAY-IONIZATION CHEMICAL-COMPOSITION OPTICAL-PROPERTIES FULVIC-ACIDS |
spellingShingle |
HULIS Arctic brown carbon light absorption aerosol mass SOLUBLE ORGANIC-COMPOUNDS TANDEM MASS-SPECTROMETRY SIZE-EXCLUSION CHROMATOGRAPHY MOLECULAR-WEIGHT DISTRIBUTION FINE ATMOSPHERIC AEROSOL BIOMASS-BURNING AEROSOLS ELECTROSPRAY-IONIZATION CHEMICAL-COMPOSITION OPTICAL-PROPERTIES FULVIC-ACIDS Nguyen, Q. T. Kristensen, T. B. Hansen, A. M. K. Skov, H. Bossi, R. Massling, A. Sorensen, L. L. Bilde, M. Glasius, M. Nojgaard, J. K. Characterization of humic-like substances in Arctic aerosols |
topic_facet |
HULIS Arctic brown carbon light absorption aerosol mass SOLUBLE ORGANIC-COMPOUNDS TANDEM MASS-SPECTROMETRY SIZE-EXCLUSION CHROMATOGRAPHY MOLECULAR-WEIGHT DISTRIBUTION FINE ATMOSPHERIC AEROSOL BIOMASS-BURNING AEROSOLS ELECTROSPRAY-IONIZATION CHEMICAL-COMPOSITION OPTICAL-PROPERTIES FULVIC-ACIDS |
description |
Humic-like substances (HULIS) are a complex group of relatively high molecular weight organic compounds which contribute considerably to the mass of organic carbon (OC) and influence the light-absorbing properties of aerosols. In this work, HULIS were investigated for the first time in the high-Arctic atmosphere, focusing on the chemical characterization and mass contribution of HULIS to the total suspended particle (TSP) mass using weekly aerosol samples collected at Station Nord, northeast Greenland every fourth week during 2010. Average HULIS-C concentration was 11ng C m(-3) during the darker months (November-April) and 4ng C m(-3) during the other months (May-October) with an annual mass concentration of 0.020.01 mu gm(-3). HULIS-C contributed to 3-16% of water-soluble organic carbon (WSOC), whereas HULIS accounted for 0.7-4.1% of TSP mass, with TSP typically below 1.0 mu gm(-3). Concentrations of OC, WSOC, HULIS, selected HULIS functional groups (carboxylic acids, aromatic carboxylic acids, and organosulfates) and levoglucosan overlapped with the typical Arctic haze pattern with elevated concentrations during winter to early spring. The aromatic carboxylic acid portion accounted for a larger share of total carboxylic acid of HULIS during the darker months (7%) compared to the brighter months (3%). The more abundant aromatic carboxylic acid functional groups and the moderate correlation between HULIS and levoglucosan concentrations during the darker months both indicate that biomass burning aerosols and thereby emissions of aromatic compounds could contribute to HULIS in the Arctic, especially during late winter. During the brighter months, relatively higher average molecular weight of HULIS was observed. |
format |
Article in Journal/Newspaper |
author |
Nguyen, Q. T. Kristensen, T. B. Hansen, A. M. K. Skov, H. Bossi, R. Massling, A. Sorensen, L. L. Bilde, M. Glasius, M. Nojgaard, J. K. |
author_facet |
Nguyen, Q. T. Kristensen, T. B. Hansen, A. M. K. Skov, H. Bossi, R. Massling, A. Sorensen, L. L. Bilde, M. Glasius, M. Nojgaard, J. K. |
author_sort |
Nguyen, Q. T. |
title |
Characterization of humic-like substances in Arctic aerosols |
title_short |
Characterization of humic-like substances in Arctic aerosols |
title_full |
Characterization of humic-like substances in Arctic aerosols |
title_fullStr |
Characterization of humic-like substances in Arctic aerosols |
title_full_unstemmed |
Characterization of humic-like substances in Arctic aerosols |
title_sort |
characterization of humic-like substances in arctic aerosols |
publishDate |
2014 |
url |
https://portal.findresearcher.sdu.dk/da/publications/e632fd20-e344-4383-a1ff-be1223446d5a https://doi.org/10.1002/2013jd020144 |
genre |
Arctic Greenland |
genre_facet |
Arctic Greenland |
op_source |
Nguyen , Q T , Kristensen , T B , Hansen , A M K , Skov , H , Bossi , R , Massling , A , Sorensen , L L , Bilde , M , Glasius , M & Nojgaard , J K 2014 , ' Characterization of humic-like substances in Arctic aerosols ' , Journal of Geophysical Research: Atmospheres , vol. 119 , no. 8 , pp. 5011-5027 . https://doi.org/10.1002/2013jd020144 |
op_relation |
https://portal.findresearcher.sdu.dk/da/publications/e632fd20-e344-4383-a1ff-be1223446d5a |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/2013jd020144 |
container_title |
Journal of Geophysical Research: Atmospheres |
container_volume |
119 |
container_issue |
8 |
container_start_page |
5011 |
op_container_end_page |
5027 |
_version_ |
1810292904996896768 |