Third-hand smoking: indoor measurements of concentration and sizes of cigarette smoke particles after resuspension
- M H Becquemin1,2,3,
- J F Bertholon1,2,
- M Bentayeb2,4,
- M Attoui2,4,
- D Ledur5,
- F Roy1,
- M Roy1,
- I Annesi-Maesano2,
- B Dautzenberg1,2
- 1Assistance Publique Hôpitaux de Paris, Paris, LGDA, France
- 2UPMC,Universités Paris and Créteil, France
- 3ER10UPMC, France
- 4EPAR, UMR-S707 INSERM, France
- 5Société Ecomesure, France
- Correspondence to Professor J F Bertholon, UPMC, 27 rue de Chaligny, Paris 75012, France; jean-francois.bertholon{at}upmc.fr
- Accepted 18 March 2010
- Published Online First 7 June 2010
In a previous study1 of ‘secondhand’ cigarette smoke, we showed that 75% of the particles added to indoor air were of ultrafine sizes and had a half-life in air of 18 minutes at 25°C. These particles after their deposition on household surfaces could be later put back in suspension and constitute a toxic ‘thirdhand’ smoke2 which has not, as yet, been documented through quantitative data. Consequently, we undertook direct measurements of the concentration and sizes of smoke particles after their …








