Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica)
Atmospheric aerosols play a major role in the global climate change. A better physical characterization of the chemical composition of atmospheric aerosols, especially in remote atmosphere, is an important step to reduce the current uncertainty in their effect on the radiative forcing of the climate...
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ftmoes:oai:moeseprints.incois.gov.in:4091 2023-05-15T13:34:17+02:00 Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) Budhavant, K Safai, PD Rao, PSP 2015-02 http://moeseprints.incois.gov.in/4091/ http://link.springer.com/article/10.1007/s11356-014-3452-0 unknown Springer Nature Budhavant, K and Safai, PD and Rao, PSP (2015) Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica). Environmental Science and Pollution Research, 22 (3). pp. 2041-2050. Meteorology and Climatology Article PeerReviewed 2015 ftmoes 2022-01-12T07:35:21Z Atmospheric aerosols play a major role in the global climate change. A better physical characterization of the chemical composition of atmospheric aerosols, especially in remote atmosphere, is an important step to reduce the current uncertainty in their effect on the radiative forcing of the climate. In the present work, surface aerosols have been studied over the Southern Ocean and over Bharati, Indian Research Station at Larsemann Hills at the Antarctic coast during the summer season of 2009–2010. Aerosol samples were collected using optical particle counter (OPC) and high-volume air sampler. PM10 and PM2.5 aerosol samples were analyzed for various water-soluble and acid-soluble ionic constituents. The Hysplit model was used to compute the history of the air masses for their possible origin. Supplementary measurements of meteorological parameters were also used. The average mass concentration for PM10 over the Southern Ocean was found to be 13.4 μg m3. Over coastal Antarctica, the mass of PM10 was 5.13 μg m−3, whereas that of PM2.5 was 4.3 μg m−3. Contribution of marine components, i.e., Na, Cl and Mg was dominant over the Southern Ocean (79 %) than over the coastal Antarctica where they were dominant in coarse mode (67 %) than in fine mode (53 %) aerosols. The NH4/nss-SO4 ratio of 1.12 in PM2.5 indicates that the NH4 and SO4 ions were in the form of NH4HSO4. Computation of enrichment factors indicate that elements of anthropogenic origin, e.g., Zn, Cu, Pb, etc., were highly enriched with respect to crustal composition. Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Ministry of Earth Sciences, Government of India: Open Access Digital Repository Antarctic Indian Larsemann Hills ENVELOPE(76.217,76.217,-69.400,-69.400) Southern Ocean The Antarctic |
institution |
Open Polar |
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Ministry of Earth Sciences, Government of India: Open Access Digital Repository |
op_collection_id |
ftmoes |
language |
unknown |
topic |
Meteorology and Climatology |
spellingShingle |
Meteorology and Climatology Budhavant, K Safai, PD Rao, PSP Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
topic_facet |
Meteorology and Climatology |
description |
Atmospheric aerosols play a major role in the global climate change. A better physical characterization of the chemical composition of atmospheric aerosols, especially in remote atmosphere, is an important step to reduce the current uncertainty in their effect on the radiative forcing of the climate. In the present work, surface aerosols have been studied over the Southern Ocean and over Bharati, Indian Research Station at Larsemann Hills at the Antarctic coast during the summer season of 2009–2010. Aerosol samples were collected using optical particle counter (OPC) and high-volume air sampler. PM10 and PM2.5 aerosol samples were analyzed for various water-soluble and acid-soluble ionic constituents. The Hysplit model was used to compute the history of the air masses for their possible origin. Supplementary measurements of meteorological parameters were also used. The average mass concentration for PM10 over the Southern Ocean was found to be 13.4 μg m3. Over coastal Antarctica, the mass of PM10 was 5.13 μg m−3, whereas that of PM2.5 was 4.3 μg m−3. Contribution of marine components, i.e., Na, Cl and Mg was dominant over the Southern Ocean (79 %) than over the coastal Antarctica where they were dominant in coarse mode (67 %) than in fine mode (53 %) aerosols. The NH4/nss-SO4 ratio of 1.12 in PM2.5 indicates that the NH4 and SO4 ions were in the form of NH4HSO4. Computation of enrichment factors indicate that elements of anthropogenic origin, e.g., Zn, Cu, Pb, etc., were highly enriched with respect to crustal composition. |
format |
Article in Journal/Newspaper |
author |
Budhavant, K Safai, PD Rao, PSP |
author_facet |
Budhavant, K Safai, PD Rao, PSP |
author_sort |
Budhavant, K |
title |
Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
title_short |
Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
title_full |
Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
title_fullStr |
Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
title_full_unstemmed |
Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica) |
title_sort |
sources and elemental composition of summer aerosols in the larsemann hills (antarctica) |
publisher |
Springer Nature |
publishDate |
2015 |
url |
http://moeseprints.incois.gov.in/4091/ http://link.springer.com/article/10.1007/s11356-014-3452-0 |
long_lat |
ENVELOPE(76.217,76.217,-69.400,-69.400) |
geographic |
Antarctic Indian Larsemann Hills Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Larsemann Hills Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean |
op_relation |
Budhavant, K and Safai, PD and Rao, PSP (2015) Sources and elemental composition of summer aerosols in the Larsemann Hills (Antarctica). Environmental Science and Pollution Research, 22 (3). pp. 2041-2050. |
_version_ |
1766051347467075584 |