Real Time Detection of Airborne Bioparticles in Antarctica
© Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Hall...
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ftunivhertford:oai:uhra.herts.ac.uk:2299/19811 2024-04-21T07:49:16+00:00 Real Time Detection of Airborne Bioparticles in Antarctica Crawford, Ian Gallagher, Martin Bower, Keith Choularton, Thomas Flynn, Michael Ruske, Simon Listowski, Constantino Brough, Neil Lachlan-Cope, Thomas Fleming, Zoe Foot, Virginia Stanley, Warren Centre for Atmospheric and Climate Physics Research Particle Instruments and diagnostics School of Physics, Astronomy and Mathematics Centre for Hazard Detection and Protection Research Centre for Research in Biodetection Technologies 2017-12-01 17 6661332 http://hdl.handle.net/2299/19811 eng eng Atmospheric Chemistry and Physics Discussions Crawford , I , Gallagher , M , Bower , K , Choularton , T , Flynn , M , Ruske , S , Listowski , C , Brough , N , Lachlan-Cope , T , Fleming , Z , Foot , V & Stanley , W 2017 , ' Real Time Detection of Airborne Bioparticles in Antarctica ' , Atmospheric Chemistry and Physics Discussions , vol. 17 , no. 23 , pp. 14291-14307 . https://doi.org/10.5194/acp-17-14291-2017 1680-7367 ORCID: /0000-0002-4078-5864/work/62749288 http://hdl.handle.net/2299/19811 bioaerosol fluorescence detection bioparticles 2017 ftunivhertford 2024-03-27T15:09:50Z © Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Halley VI Research Station, located on the Brunt ice shelf close to the Weddell Sea coast (Lat. 75°34'59"S, Long. 26°10'0"W) during Antarctic Summer, 2015. As part of the NERC MAC (Microphysics of Antarctic Clouds) aircraft aerosol cloud interaction project, observations with a real-time Ultraviolet Light Induced Fluorescence (UV-LIF) spectrometer were conducted to quantify airborne biological containing particle concentrations along with dust particles as a function of wind speed and direction over a three week period. Significant, intermittent enhancements of both non- and bio-fluorescent particles were observed to varying degrees in very specific wind directions and during strong wind events. Analysis of the particle UV induced emission spectra, particle sizes and shapes recorded during these events suggest the majority of particles were likely a subset of dust with weak fluorescence emission responses. A minor fraction, however, were clearly primary biological particles that were very strongly fluorescent, with a subset identified as likely being pollen based on comparison with laboratory data obtained using the same instrument. A strong correlation of biofluorescent particles with wind speed was observed in some, but not all, periods. Interestingly the fraction of fluorescent particles to total particle concentration also increased significantly with wind speed during these events. The enhancement in concentrations of these particles could be interpreted as due to re-suspension from the local ice surface but more likely due to emissions from distal sources within Antarctica as well as intercontinental transport. Likely distal sources identified by back trajectory analyses and dispersion modelling were the coastal ice ... Other/Unknown Material Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea University of Hertfordshire: UH Research Archive |
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Open Polar |
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University of Hertfordshire: UH Research Archive |
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ftunivhertford |
language |
English |
topic |
bioaerosol fluorescence detection bioparticles |
spellingShingle |
bioaerosol fluorescence detection bioparticles Crawford, Ian Gallagher, Martin Bower, Keith Choularton, Thomas Flynn, Michael Ruske, Simon Listowski, Constantino Brough, Neil Lachlan-Cope, Thomas Fleming, Zoe Foot, Virginia Stanley, Warren Real Time Detection of Airborne Bioparticles in Antarctica |
topic_facet |
bioaerosol fluorescence detection bioparticles |
description |
© Author(s) 2017. This work is distributed under the Creative Commons Attribution 3.0 License (https://creativecommons.org/licenses/by/3.0/). We demonstrate for the first time, continuous real-time observations of airborne bio-fluorescent aerosols recorded at the British Antarctic Survey's Halley VI Research Station, located on the Brunt ice shelf close to the Weddell Sea coast (Lat. 75°34'59"S, Long. 26°10'0"W) during Antarctic Summer, 2015. As part of the NERC MAC (Microphysics of Antarctic Clouds) aircraft aerosol cloud interaction project, observations with a real-time Ultraviolet Light Induced Fluorescence (UV-LIF) spectrometer were conducted to quantify airborne biological containing particle concentrations along with dust particles as a function of wind speed and direction over a three week period. Significant, intermittent enhancements of both non- and bio-fluorescent particles were observed to varying degrees in very specific wind directions and during strong wind events. Analysis of the particle UV induced emission spectra, particle sizes and shapes recorded during these events suggest the majority of particles were likely a subset of dust with weak fluorescence emission responses. A minor fraction, however, were clearly primary biological particles that were very strongly fluorescent, with a subset identified as likely being pollen based on comparison with laboratory data obtained using the same instrument. A strong correlation of biofluorescent particles with wind speed was observed in some, but not all, periods. Interestingly the fraction of fluorescent particles to total particle concentration also increased significantly with wind speed during these events. The enhancement in concentrations of these particles could be interpreted as due to re-suspension from the local ice surface but more likely due to emissions from distal sources within Antarctica as well as intercontinental transport. Likely distal sources identified by back trajectory analyses and dispersion modelling were the coastal ice ... |
author2 |
Centre for Atmospheric and Climate Physics Research Particle Instruments and diagnostics School of Physics, Astronomy and Mathematics Centre for Hazard Detection and Protection Research Centre for Research in Biodetection Technologies |
author |
Crawford, Ian Gallagher, Martin Bower, Keith Choularton, Thomas Flynn, Michael Ruske, Simon Listowski, Constantino Brough, Neil Lachlan-Cope, Thomas Fleming, Zoe Foot, Virginia Stanley, Warren |
author_facet |
Crawford, Ian Gallagher, Martin Bower, Keith Choularton, Thomas Flynn, Michael Ruske, Simon Listowski, Constantino Brough, Neil Lachlan-Cope, Thomas Fleming, Zoe Foot, Virginia Stanley, Warren |
author_sort |
Crawford, Ian |
title |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_short |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_full |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_fullStr |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_full_unstemmed |
Real Time Detection of Airborne Bioparticles in Antarctica |
title_sort |
real time detection of airborne bioparticles in antarctica |
publishDate |
2017 |
url |
http://hdl.handle.net/2299/19811 |
genre |
Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Brunt Ice Shelf Ice Shelf Weddell Sea |
op_relation |
Atmospheric Chemistry and Physics Discussions Crawford , I , Gallagher , M , Bower , K , Choularton , T , Flynn , M , Ruske , S , Listowski , C , Brough , N , Lachlan-Cope , T , Fleming , Z , Foot , V & Stanley , W 2017 , ' Real Time Detection of Airborne Bioparticles in Antarctica ' , Atmospheric Chemistry and Physics Discussions , vol. 17 , no. 23 , pp. 14291-14307 . https://doi.org/10.5194/acp-17-14291-2017 1680-7367 ORCID: /0000-0002-4078-5864/work/62749288 http://hdl.handle.net/2299/19811 |
_version_ |
1796931783697104896 |