Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe

Emitted to the atmosphere through fire and fossil fuel combustion, refractory black carbon nanoparticles (rBC) impact human health, climate, and the carbon cycle. Eventually these particles enter aquatic environments, where they may affect the fate of other pollutants. While ubiquitous, the particle...

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Main Authors: Bisiaux, M., Edwards, Peter, Heyvaert, A., Thomas, J., Fitzgerald, B., Susfalk, R., Schladow, G., Thaw, M.
Format: Journal Article
Published: American Chemical Society 2011
Subjects:
Online Access:http://hdl.handle.net/20.500.11937/49139
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author Bisiaux, M.
Edwards, Peter
Heyvaert, A.
Thomas, J.
Fitzgerald, B.
Susfalk, R.
Schladow, G.
Thaw, M.
author_facet Bisiaux, M.
Edwards, Peter
Heyvaert, A.
Thomas, J.
Fitzgerald, B.
Susfalk, R.
Schladow, G.
Thaw, M.
author_sort Bisiaux, M.
building Curtin Institutional Repository
collection Online Access
description Emitted to the atmosphere through fire and fossil fuel combustion, refractory black carbon nanoparticles (rBC) impact human health, climate, and the carbon cycle. Eventually these particles enter aquatic environments, where they may affect the fate of other pollutants. While ubiquitous, the particles are still poorly characterized in freshwater systems. Here we present the results of a study determining rBC in waters of the Lake Tahoe watershed in the western United States from 2007 to 2009. The study period spanned a large fire within the Tahoe basin, seasonal snowmelt, and a number of storm events, which resulted in pulses of urban runo# into the lake with rBCconcentrations up to 4 orders of magnitude higher than midlake concentrations. The results show that rBC pulses from both the fire and urban runoff were rapidly attenuated suggesting unexpectedaggregation or degradation of the particles. We find that those processes prevent rBC concentrations from building up in the clear and oligotrophic Lake Tahoe. This rapid removal of rBC soon after entry into the lake has implications for the transport of rBC in the global aquatic environment and the flux of rBC from continents to the global ocean.
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publishDate 2011
publisher American Chemical Society
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spelling curtin-20.500.11937-491392024-05-21T04:32:23Z Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe Bisiaux, M. Edwards, Peter Heyvaert, A. Thomas, J. Fitzgerald, B. Susfalk, R. Schladow, G. Thaw, M. black carbon fire Lake Tahoe stormwater Emitted to the atmosphere through fire and fossil fuel combustion, refractory black carbon nanoparticles (rBC) impact human health, climate, and the carbon cycle. Eventually these particles enter aquatic environments, where they may affect the fate of other pollutants. While ubiquitous, the particles are still poorly characterized in freshwater systems. Here we present the results of a study determining rBC in waters of the Lake Tahoe watershed in the western United States from 2007 to 2009. The study period spanned a large fire within the Tahoe basin, seasonal snowmelt, and a number of storm events, which resulted in pulses of urban runo# into the lake with rBCconcentrations up to 4 orders of magnitude higher than midlake concentrations. The results show that rBC pulses from both the fire and urban runoff were rapidly attenuated suggesting unexpectedaggregation or degradation of the particles. We find that those processes prevent rBC concentrations from building up in the clear and oligotrophic Lake Tahoe. This rapid removal of rBC soon after entry into the lake has implications for the transport of rBC in the global aquatic environment and the flux of rBC from continents to the global ocean. 2011 Journal Article http://hdl.handle.net/20.500.11937/49139 10.1021/es103819v American Chemical Society fulltext
spellingShingle black carbon
fire Lake Tahoe
stormwater
Bisiaux, M.
Edwards, Peter
Heyvaert, A.
Thomas, J.
Fitzgerald, B.
Susfalk, R.
Schladow, G.
Thaw, M.
Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title_full Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title_fullStr Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title_full_unstemmed Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title_short Stormwater and fire as sources of black carbon nanoparticles to Lake Tahoe
title_sort stormwater and fire as sources of black carbon nanoparticles to lake tahoe
topic black carbon
fire Lake Tahoe
stormwater
url http://hdl.handle.net/20.500.11937/49139