Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall

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dc.contributor.authorEllis, Aen_AU
dc.contributor.authorEdwards, Ren_AU
dc.contributor.authorSaunders, Men_AU
dc.contributor.authorChakrabarty, RKen_AU
dc.contributor.authorSubramanian, Ren_AU
dc.contributor.authorTimms, NEen_AU
dc.contributor.authorvan Riessen, Aen_AU
dc.contributor.authorSmith, AMen_AU
dc.contributor.authorLambrindis, Den_AU
dc.contributor.authorNunes, LJen_AU
dc.contributor.authorVallelonga, Pen_AU
dc.contributor.authorGoodwin, IDen_AU
dc.contributor.authorMoy, ADen_AU
dc.contributor.authorCurran, MAJen_AU
dc.contributor.authorvan Ommen, TDen_AU
dc.date.accessioned2022-06-02T07:31:08Zen_AU
dc.date.available2022-06-02T07:31:08Zen_AU
dc.date.issued2016-11-04en_AU
dc.date.statistics2022-05-05en_AU
dc.description.abstractBlack 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. American Geophysical Union.en_AU
dc.description.sponsorshipAustralian Antarctic Sciences. Grant Number: 4144 Curtin University. Grant Number: RES-SE-DAP-AW-47679-1 ARC LIEF. Grant Number: LE130100029en_AU
dc.identifier.citationEllis, A., Edwards, R., Saunders, M., Chakrabarty, R. K., Subramanian, R., Timms, N. E., van Riessen, A., Smith, A. M., Lambrindis, D., Nunes, L. J., Vallelonga, P., Goodwin, I. D., Moy, A. D., Curran, M. A. J., & van Ommen, T. D. (2016). Individual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfall. Geophysical Research Letters, 43(22), 11,875-11,883. doi:10.1002/2016GL071042en_AU
dc.identifier.issn1944-8007en_AU
dc.identifier.issue22en_AU
dc.identifier.journaltitleGeophysical Research Lettersen_AU
dc.identifier.pagination11,875-11,883en_AU
dc.identifier.urihttps://doi.org/10.1002/2016GL071042en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/13253en_AU
dc.identifier.volume43en_AU
dc.language.isoenen_AU
dc.publisherJohn Wiley & Sons, Incen_AU
dc.subjectMorphologyen_AU
dc.subjectParticlesen_AU
dc.subjectAerosolsen_AU
dc.subjectCarbonen_AU
dc.subjectIronen_AU
dc.subjectAntarcticaen_AU
dc.subjectIceen_AU
dc.subjectRainen_AU
dc.subjectTropical regionsen_AU
dc.subjectClimatic changeen_AU
dc.subjectDrill coresen_AU
dc.titleIndividual particle morphology, coatings, and impurities of black carbon aerosols in Antarctic ice and tropical rainfallen_AU
dc.typeJournal Articleen_AU
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