Indoor Particulate Matter during HOMEChem: Concentrations, Size Distributions, and Exposures.
Environ Sci Technol
; 54(12): 7107-7116, 2020 06 16.
Article
en En
| MEDLINE
| ID: mdl-32391692
ABSTRACT
It is important to improve our understanding of exposure to particulate matter (PM) in residences because of associated health risks. The HOMEChem campaign was conducted to investigate indoor chemistry in a manufactured test house during prescribed everyday activities, such as cooking, cleaning, and opening doors and windows. This paper focuses on measured size distributions of PM (0.001-20 µm), along with estimated exposures and respiratory-tract deposition. Number concentrations were highest for sub-10 nm particles during cooking using a propane-fueled stovetop. During some cooking activities, calculated PM2.5 mass concentrations (assuming a density of 1 g cm-3) exceeded 250 µg m-3, and exposure during the postcooking decay phase exceeded that of the cooking period itself. The modeled PM respiratory deposition for an adult residing in the test house kitchen for 12 h varied from 7 µg on a day with no indoor activities to 68 µg during a simulated day (including breakfast, lunch, and dinner preparation interspersed by cleaning activities) and rose to 149 µg during a simulated Thanksgiving day.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
2_ODS3
Problema de salud:
2_quimicos_contaminacion
Asunto principal:
Contaminación del Aire Interior
/
Contaminantes Atmosféricos
Límite:
Adult
/
Humans
Idioma:
En
Revista:
Environ Sci Technol
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos