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Characterization of aerosols over the Great Barrier Reef: The influence of transported continental sources.
Chen, Zhenyi; Schofield, Robyn; Rayner, Peter; Zhang, Tianshu; Liu, Cheng; Vincent, Claire; Fiddes, Sonya; Ryan, Robert George; Alroe, Joel; Ristovski, Zoran D; Humphries, Ruhi S; Keywood, Melita D; Ward, Jason; Paton-Walsh, Clare; Naylor, Travis; Shu, Xiaowen.
Afiliación
  • Chen Z; Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031 Hefei, China.
  • Schofield R; School of Earth Sciences, University of Melbourne, 3010 Melbourne, VIC, Australia.
  • Rayner P; School of Earth Sciences, University of Melbourne, 3010 Melbourne, VIC, Australia.
  • Zhang T; Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031 Hefei, China.
  • Liu C; Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031 Hefei, China; School of Earth and Space Sciences, University of Science and Technology of China, 230026 Hefei, China; Center for Excellence in Regional Atmospheric Enviro
  • Vincent C; School of Earth Sciences, University of Melbourne, 3010 Melbourne, VIC, Australia.
  • Fiddes S; School of Earth Sciences, University of Melbourne, 3010 Melbourne, VIC, Australia.
  • Ryan RG; School of Earth Sciences, University of Melbourne, 3010 Melbourne, VIC, Australia.
  • Alroe J; International Laboratory for Air Quality and Health, Queensland University of Technology, QLD 4000, Australia.
  • Ristovski ZD; International Laboratory for Air Quality and Health, Queensland University of Technology, QLD 4000, Australia.
  • Humphries RS; Climate Science Centre, Oceans and Atmosphere, CSIRO, 3195 Aspendale, VIC, Australia.
  • Keywood MD; Climate Science Centre, Oceans and Atmosphere, CSIRO, 3195 Aspendale, VIC, Australia.
  • Ward J; Climate Science Centre, Oceans and Atmosphere, CSIRO, 3195 Aspendale, VIC, Australia.
  • Paton-Walsh C; School of Chemistry, University of Wollongong, 2522, NSW, Australia.
  • Naylor T; School of Chemistry, University of Wollongong, 2522, NSW, Australia.
  • Shu X; Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 230031 Hefei, China.
Sci Total Environ ; 690: 426-437, 2019 Nov 10.
Article en En | MEDLINE | ID: mdl-31299575
The rapid environmental changes in Australia prompt a more thorough investigation of the influence of transportation, local emissions, and optical-chemical properties on aerosol production across the region. A month-long intensive measurement campaign was conducted during spring 2016 at Mission Beach, a remote coastal site west of the Great Barrier Reef (GBR) on the north-east coast of Australia. One aerosol pollution episode was investigated in early October. This event was governed by meteorological conditions and characterized by the increase in black carbon (BC) mass concentration (averaged value of 0.35 ±â€¯0.20 µg m-3). Under the influence of the continental transportation, a new layer of nucleation-mode aerosols with an initial size diameter of 20 nm was observed and aerosol number concentrations reached the peak of 6733 cm-3 at a diameter of 29 nm. The averaged aerosol extinction coefficient at the height of 2 km was 150 Mm-1, with a small depolarized ratio (3.5-5%). Simultaneously, the boundary layer height presented a fall-rise trend in the presence of these enhanced aerosol concentrations and became stable in a later stage of the episode. We did not observe clear boundary layer height diurnal variations from the LiDAR observations or from the Weather Research and Forecasting (WRF) model outputs, except in an earlier stage of the aerosol episode for the former. Although the sea breeze may have been responsible for these particles, on the balance of available data, we suggest that the aerosol properties at the GBR surface during this period are more likely influenced by regional transportation of continental sources, including biomass-burning aerosols.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo del Ambiente / Aerosoles / Contaminantes Atmosféricos / Arrecifes de Coral País/Región como asunto: Oceania Idioma: En Revista: Sci Total Environ Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Monitoreo del Ambiente / Aerosoles / Contaminantes Atmosféricos / Arrecifes de Coral País/Región como asunto: Oceania Idioma: En Revista: Sci Total Environ Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Países Bajos