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Titre du document / Document title

Identification of possible sources of particulate matter in the personal cloud using SEM/EDX

Auteur(s) / Author(s)

CONNER Teri L. (1) ; WILLIAMS Ronald W. (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) US EPA, National Exposure Research Laboratory, Research Triangle Park, NC, 27711, ETATS-UNIS

Résumé / Abstract

The United States Environmental Protection Agency (US EPA) conducted the Baltimore Particulate Matter (PM) Epidemiology-Exposure Study of the Elderly during the summer of 1998. The study design included PM2.5 samples obtained from elderly (65+ years of age) retirement facility residents using personal exposure sampling devices. These sampling devices were also used to obtain PM2.5 samples at fixed locations within the personal monitoring subjects' apartments. Selected personal and apartment samples were examined using scanning electron microscopy with individual-particle X-ray analysis (SEM/EDX), providing a qualitative assessment of the chemical and physical characteristics of geological and trace element particles collected within these micro-environments at the retirement facility. This information was used to identify possible indoor source particles. The manual surveys of the personal samples revealed that some particles larger than 2.5 μm reached the filter surface. Using SEM/EDX, several particle types with possible indoor origins were identified. The Al-Zr-Cl particle is likely to have originated from a personal antiperspirant product. Particles with a talc or alumino-silicate composition point to cosmetics as a possible source. Large cadmium-containing particles were also found, which may indicate the use of art pigments or ceramic glazes, or emissions from television screen phosphors. A greater variety of particles was observed in a personal sample compared with its corresponding fixed-location apartment sample.

Revue / Journal Title

Atmospheric environment    ISSN  1352-2310 

Source / Source

Congrès
American Association for Aerosol Research. Specialty Conference No1, Pittsburgh, PA , ETATS-UNIS (31/03/2003)
2004, vol. 38, no 31 (185 p.)  [Document : 6 p.] (7 ref.), pp. 5305-5310 [6 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Kidlington, ROYAUME-UNI  (1994) (Revue)

Mots-clés anglais / English Keywords

America

;

North America

;

United States

;

Personal sampling

;

Maryland

;

Public health

;

Health and environment

;

Elderly

;

Human

;

Exposure

;

Identification

;

Pollution source inventory

;

Scanning electron microscopy

;

Energy dispersion

;

X ray analysis

;

Heavy metal

;

Fine particle

;

Aerosols

;

Sampling

;

Surveillance

;

Air quality

;

Apartment

;

Homes for the aged

;

Housing

;

Indoor pollution

;

Mots-clés français / French Keywords

Amérique

;

Amérique du Nord

;

Etats Unis

;

Exposition individuelle

;

Maryland

;

Santé publique

;

Santé et environnement

;

Personne âgée

;

Homme

;

Exposition

;

Identification

;

Inventaire source pollution

;

Microscopie électronique balayage

;

Dispersion énergie

;

Analyse RX

;

Métal lourd

;

Particule fine

;

Aérosol

;

Echantillonnage

;

Surveillance

;

Qualité air

;

Appartement

;

Etablissement troisième âge

;

Logement habitation

;

Pollution intérieur

;

Mots-clés espagnols / Spanish Keywords

America

;

America del norte

;

Estados Unidos

;

Maryland

;

Salud pública

;

Salud y medio ambiente

;

Anciano

;

Hombre

;

Exposición

;

Identificación

;

Inventario fuente polución

;

Microscopía electrónica barrido

;

Dispersión energía

;

Análisis rayos X

;

Metal pesado

;

Partícula fina

;

Aerosol

;

Muestreo

;

Vigilancia

;

Calidad aire

;

Departamento

;

Establecimiento tercera edad

;

Habitación

;

Polución interior

;

Mots-clés d'auteur / Author Keywords

Scanning electron microscopy

;

Particles

;

Indoor

;

Exposure

;

Elderly

;

Localisation / Location

INIST-CNRS, Cote INIST : 8940 B, 35400011413763.0120

Nº notice refdoc (ud4) : 16100711



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