Titre :
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Comparison of light scattering devices and impactors for particulate measurements in indoor, outdoor, and personal environments. (2002)
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Auteurs :
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L-Jsally LIU ;
Timothy-V LARSON ;
James-C SLAUGHTER ;
Uw. Epa Nw Research Center for Particulate Air Pollution and Health. Department of Environmental Health. University of Washington. Seattle. WA. USA
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Type de document :
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Article
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Dans :
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Environmental science & technology (vol. 36, n° 13, 2002)
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Pagination :
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2977-2986
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Langues:
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Anglais
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Mots-clés :
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Pollution atmosphérique
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Aérosol
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Surveillance
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Court terme
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Etude comparée
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Exposition
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Homme
;
Santé environnementale
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Etude cas
;
Domicile
;
Etats Unis
;
Amérique
;
Amérique du Nord
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Résumé :
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[BDSP. Notice produite par INIST-CNRS s8HR0xBJ. Diffusion soumise à autorisation]. Short-term monitoring of individual particulate matter (PM) exposures on subjects and inside residences in health effect studies have been sparse due to the lack of adequate monitoring devices. The recent development of small and portable light scattering devices, including the Radiance nephelometer (neph) and the personal Data RAM (pDR) has made this monitoring possible. This paper evaluates the performance of both the passive pDR and neph (without any size fractionation inlet) against measurements from both Harvard impactors (HI2.5) and Harvard personal environmental monitors (HPEM2.5) for PM2.5 in indoor, outdoor, and personal settings. These measurements were taken at the residences and on the person of nonsmoking elderly subjects across the metropolitan Seattle area and represent a wide range of light scattering measurements directly related to exposures and health effects. At low PM levels, nephs provided finer resolution and more precise measurements (precision=3-8% and uncertainty=2.8 x 10-7 m-1 or
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