Characterising an intense PM pollution episode in March 2015 in France from multi-site approach and near real time data: Climatology, variabilities, geographical origins and model evaluation
Aerosols
; Chemical speciation
; Climatology
; Models
; Nitrates
; Pollution
; Urban growth
; ACSM
; Aethalometer
; Chemical compositions
; Chemistry transport model
; France
; Geographical origins
; Near real-time datum
; Spatiotemporal variability
; Air pollution
; ammonia
; ammonium nitrate
; black carbon
; chloride
; nitrate
; rain
; sulfate
; advection
; aerosol
; ammonium nitrate
; atmospheric modeling
; atmospheric pollution
; chemical composition
; climate variation
; climatology
; geographical distribution
; particulate matter
; real time
; spatiotemporal analysis
; speciation (chemistry)
; air pollution
; air quality
; Article
; chemical composition
; climate change
; clinical evaluation
; concentration process
; controlled study
; exercise
; France
; geography
; meteorological phenomena
; particulate matter
; priority journal
; wood
; France
; Ile de France
; Lorraine
; Lyons
; Metz
; Moselle
; Paris
; Rhone
; Rhone-Alpes
; Ville de Paris
Scopus学科分类:
Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要:
During March 2015, a severe and large-scale particulate matter (PM) pollution episode occurred in France. Measurements in near real-time of the major chemical composition at four different urban background sites across the country (Paris, Creil, Metz and Lyon) allowed the investigation of spatiotemporal variabilities during this episode. A climatology approach showed that all sites experienced clear unusual rain shortage, a pattern that is also found on a longer timescale, highlighting the role of synoptic conditions over Wester-Europe. This episode is characterized by a strong predominance of secondary pollution, and more particularly of ammonium nitrate, which accounted for more than 50% of submicron aerosols at all sites during the most intense period of the episode. Pollution advection is illustrated by similar variabilities in Paris and Creil (distant of around 100 km), as well as trajectory analyses applied on nitrate and sulphate. Local sources, especially wood burning, are however found to contribute to local/regional sub-episodes, notably in Metz. Finally, simulated concentrations from Chemistry-Transport model CHIMERE were compared to observed ones. Results highlighted different patterns depending on the chemical components and the measuring site, reinforcing the need of such exercises over other pollution episodes and sites. � 2017 Elsevier Ltd
Air Lorraine, 20 rue Pierre Simon de Laplace, Metz, France; INERIS, rue Jacques Taffanel, Verneuil-en-Halatte, France; Laboratoire de M�t�orologie Dynamique, Palaiseau, France; Air Rh�ne-Alpes, 3 all�e des Sorbiers, Bron, France; Atmo Picardie, 22 boulevard Michel Strogoff, Longueau, France; Laboratoire des Sciences du Climat et de l'Environnement, CEA/Orme des Merisiers, Gif-sur-Yvette, France; The Cyprus Institute, Energy Environment Water Research Center, Nicosia, Cyprus
Recommended Citation:
Petit J,-E,, Amodeo T,et al. Characterising an intense PM pollution episode in March 2015 in France from multi-site approach and near real time data: Climatology, variabilities, geographical origins and model evaluation[J]. Atmospheric Environment,2017-01-01,155