Spatial concentration variation of cooking-emitted particles in a residential kitchen

Residential kitchen cooking generates significant amount of gases and particulate pollutants and is regarded as a major pollutant source in residential microenvironments. Existing risk assessments always assume well-mixed condition. We used a portable nephelometer to measure PM3.5 oil particle conce...

Full description

Saved in:
Bibliographic Details
Published in:Building and environment 2008-05, Vol.43 (5), p.871-876
Main Authors: Lai, A.C.K., Ho, Y.W.
Format: Article
Language:English
Subjects:
Applied sciences
Buildings
Buildings. Public works
Cooking
Dispersion
Exact sciences and technology
Indoor air quality
Mixing
Particles
Residential building
Types of buildings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Residential kitchen cooking generates significant amount of gases and particulate pollutants and is regarded as a major pollutant source in residential microenvironments. Existing risk assessments always assume well-mixed condition. We used a portable nephelometer to measure PM3.5 oil particle concentration in a kitchen under low air exchange rate condition. Two sampling locations were chosen: one near (0.3 m) and another far (2.8 m) from the cooking stove. Numerical simulation was also used to model the particle transport in a model kitchen. Particles passing through the pre-defined sampling areas were tracked and counted. The simulated results agree reasonably well with the measured concentration. It shows that concentration at the near-field is almost three times as high as that at the far-field. Exposure assessment results based on well-mixed assumption should be applied with caution.
ISSN:0360-1323
1873-684X
DOI:10.1016/j.buildenv.2007.01.033