Skip to Main content Skip to Navigation
Journal articles

Atmospheric particle evolution during a nighttime atmospheric mercury depletion event in sub-Arctic at Kuujjuarapik/Whapmagoostui, Québec, Canada

Abstract : During a field experiment at Kuujjuarapik/Whapmagoostui (55.31°N, 77.75°W), Québec, we observed increases of concentrations of particles with diameters larger than 0.3 μm in the ambient air during a nighttime atmospheric mercury depletion event (AMDE). These increases were strongly correlated with decreases of ozone and atmospheric mercury, and we also observed a change in the particle size distribution during this AMDE. Assuming that these phenomena imply either a chemical link or an association through transport, we also studied the nature of this AMDE. We hypothesize that the observed AMDE was a result of an influx of already depleted air masses and that it was not a product of local chemical reactions.
Document type :
Journal articles
Complete list of metadatas

https://hal-insu.archives-ouvertes.fr/insu-00374351
Contributor : Aurore Gayraud <>
Submitted on : Wednesday, April 8, 2009 - 1:27:12 PM
Last modification on : Wednesday, October 14, 2020 - 3:41:19 AM

Identifiers

Collections

Citation

Pierre-Alexis Gauchard, Christophe P. Ferrari, Aurélien Dommergue, Laurier Poissant, Martin Pilote, et al.. Atmospheric particle evolution during a nighttime atmospheric mercury depletion event in sub-Arctic at Kuujjuarapik/Whapmagoostui, Québec, Canada. Science of the Total Environment, Elsevier, 2005, 336 (1-3), pp.215 à 224. ⟨10.1016/j.scitotenv.2004.05.022⟩. ⟨insu-00374351⟩

Share

Metrics

Record views

232