Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall
© 2016 American Geophysical Union. All Rights Reserved. Black carbon (BC) aerosols are a large source of climate warming, impact atmospheric chemistry, and are implicated in large-scale changes in atmospheric circulation. Inventories of BC emissions suggest significant changes in the global BC aeros...
| Main Authors: | , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal Article |
| Published: |
American Geophysical Union
2016
|
| Online Access: | http://purl.org/au-research/grants/arc/LE130100029 http://hdl.handle.net/20.500.11937/32106 |
| _version_ | 1848753569983889408 |
|---|---|
| author | Ellis, A. Edwards, R. Saunders, M. Chakrabarty, R. Subramanian, R. Timms, N. Van Riessen, Arie Smith, A. Lambrinidis, D. Nunes, L. Vallelonga, P. Goodwin, I. Moy, A. Curran, M. van Ommen, T. |
| author_facet | Ellis, A. Edwards, R. Saunders, M. Chakrabarty, R. Subramanian, R. Timms, N. Van Riessen, Arie Smith, A. Lambrinidis, D. Nunes, L. Vallelonga, P. Goodwin, I. Moy, A. Curran, M. van Ommen, T. |
| author_sort | Ellis, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2016 American Geophysical Union. All Rights Reserved. Black carbon (BC) aerosols are a large source of climate warming, impact atmospheric chemistry, and are implicated in large-scale changes in atmospheric circulation. Inventories of BC emissions suggest significant changes in the global BC aerosol distribution due to human activity. However, little is known regarding BC's atmospheric distribution or aged particle characteristics before the twentieth century. Here we investigate the prevalence and structural properties of BC particles in Antarctic ice cores from 1759, 1838, and 1930 Common Era (C.E.) using transmission electron microscopy and energy-dispersive X-ray spectroscopy. The study revealed an unexpected diversity in particle morphology, insoluble coatings, and association with metals. In addition to conventionally occurring BC aggregates, we observed single BC monomers, complex aggregates with internally, and externally mixed metal and mineral impurities, tar balls, and organonitrogen coatings. The results of the study show BC particles in the remote Antarctic atmosphere exhibit complexity that is unaccounted for in atmospheric models of BC. |
| first_indexed | 2025-11-14T08:26:36Z |
| format | Journal Article |
| id | curtin-20.500.11937-32106 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:26:36Z |
| publishDate | 2016 |
| publisher | American Geophysical Union |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-321062022-11-28T04:46:12Z Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall Ellis, A. Edwards, R. Saunders, M. Chakrabarty, R. Subramanian, R. Timms, N. Van Riessen, Arie Smith, A. Lambrinidis, D. Nunes, L. Vallelonga, P. Goodwin, I. Moy, A. Curran, M. van Ommen, T. © 2016 American Geophysical Union. All Rights Reserved. Black carbon (BC) aerosols are a large source of climate warming, impact atmospheric chemistry, and are implicated in large-scale changes in atmospheric circulation. Inventories of BC emissions suggest significant changes in the global BC aerosol distribution due to human activity. However, little is known regarding BC's atmospheric distribution or aged particle characteristics before the twentieth century. Here we investigate the prevalence and structural properties of BC particles in Antarctic ice cores from 1759, 1838, and 1930 Common Era (C.E.) using transmission electron microscopy and energy-dispersive X-ray spectroscopy. The study revealed an unexpected diversity in particle morphology, insoluble coatings, and association with metals. In addition to conventionally occurring BC aggregates, we observed single BC monomers, complex aggregates with internally, and externally mixed metal and mineral impurities, tar balls, and organonitrogen coatings. The results of the study show BC particles in the remote Antarctic atmosphere exhibit complexity that is unaccounted for in atmospheric models of BC. 2016 Journal Article http://hdl.handle.net/20.500.11937/32106 10.1002/2016GL071042 http://purl.org/au-research/grants/arc/LE130100029 American Geophysical Union fulltext |
| spellingShingle | Ellis, A. Edwards, R. Saunders, M. Chakrabarty, R. Subramanian, R. Timms, N. Van Riessen, Arie Smith, A. Lambrinidis, D. Nunes, L. Vallelonga, P. Goodwin, I. Moy, A. Curran, M. van Ommen, T. Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title | Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title_full | Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title_fullStr | Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title_full_unstemmed | Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title_short | Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall |
| title_sort | individual particle morphology, coatings, and impurities of black carbon aerosols in antarctic ice and tropical rainfall |
| url | http://purl.org/au-research/grants/arc/LE130100029 http://hdl.handle.net/20.500.11937/32106 |