title: Development of a new portable air sampler based on electrostatic precipitation.
abstract: Airborne particles are known to cause illness and to influence meteorological phenomena. It is therefore important to monitor their concentrations and to identify them. A challenge is to collect micro and nanoparticles, microorganisms as well as toxic molecules with a device as simple and small as possible to be used easily and everywhere. Electrostatic precipitation is an efficient method to collect all kinds of airborne particles. Furthermore, this method can be miniaturized. A portable, silent, and autonomous air sampler based on this technology is therefore being developed with the final objective to collect very efficiently airborne pathogens such as supermicron bacteria but also submicron viruses. Particles are collected on a dry surface so they may be concentrated afterwards in a small amount of liquid medium to be analyzed. It is shown that nearly 98 % of airborne particles from 10 nm to 3 μm are collected.
authors.affiliation: Commissariat à l'Energie Atomique CEA/DRT, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex, France. jean-maxime.roux@cea.fr.
authors.forename: J M
authors.initials: JM
authors.lastname: Roux
authors.affiliation: Commissariat à l'Energie Atomique CEA/LSCE, Gif/Yvette, France.
authors.forename: R
authors.initials: R
authors.lastname: Sarda-Estève
authors.affiliation: Commissariat à l'Energie Atomique CEA/DRT, CEA Grenoble, 17 rue des Martyrs, 38054, Grenoble Cedex, France.
authors.forename: G
authors.initials: G
authors.lastname: Delapierre
authors.affiliation: Commissariat à l'Energie Atomique CEA/DSM, Gif/Yvette, France.
authors.forename: M H
authors.initials: MH
authors.lastname: Nadal
authors.affiliation: Commissariat à l'Energie Atomique CEA/DAM, 91297, Bruyères-le-Châtel, France.
authors.forename: C
authors.initials: C
authors.lastname: Bossuet
authors.affiliation: Commissariat à l'Energie Atomique CEA/DAM, 91297, Bruyères-le-Châtel, France.
authors.forename: L
authors.initials: L
authors.lastname: Olmedo
mesh_terms: D000391:Air Microbiology; D001419:Bacteria; D004784:Environmental Monitoring / Q000295:instrumentation* / Q000379:methods; D055672:Static Electricity; D014780:Viruses
keywords: Air sampling; Corona discharge; Electrostatic precipitation; Ionic wind; Nanoparticles; Portable device