Fugacity model incorporating computational fluid dynamics for analyzing the behavior of an insecticide sprayed indoors

Fugacity models are used widely to predict the time-dependent behaviors of chemicals in environments containing several media (e.g., air, sediment, soil, and water). However, these fugacity models work on the assumption that the concentration of a chemical in each medium is uniform, so they cannot d...

Full description

Saved in:
Bibliographic Details
Published in:Journal of Pesticide Science 2023/11/20, Vol.48(4), pp.187-201
Main Authors: Tanaka, Sayuri, Matoba, Yoshihide, Kondo, Hiroaki, Ihara, Tomohiko
Format: Article
Language:English
Subjects:
Aerosols
Air flow
Computational fluid dynamics
Computer applications
Fluid dynamics
Fugacity
fugacity model
Hydrodynamics
insecticide
Insecticides
Regular
risk assessment
simulation model
Soil water
Spatial distribution
Time dependence
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Fugacity models are used widely to predict the time-dependent behaviors of chemicals in environments containing several media (e.g., air, sediment, soil, and water). However, these fugacity models work on the assumption that the concentration of a chemical in each medium is uniform, so they cannot describe the spatial distribution of the chemical. We developed a new fugacity model, termed InPestCFD, incorporating computational fluid dynamics to describe both the time-dependent distribution and the spatial distribution of a chemical in a medium. InPestCFD was used to calculate the behavior of an insecticide released from an aerosol canister in a room. Indoor airflow and aerosol particle behavior were calculated via computational fluid dynamics and using a Lagrangian dispersion model. Transport of the insecticide among media (aerosol particles, air, ceiling, floor, and walls) was calculated using the fugacity model. The time-dependent distributions and spatial distributions of the insecticide in the media agreed well with real measurements.
ISSN:1348-589X
1349-0923
DOI:10.1584/jpestics.D23-011