Fugacity-Based Indoor Residential Pesticide Fate Model

Deborah H Bennett, Edwin J. Furtaw

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Dermal and nondietary pathways are possibly important for exposure to pesticides used in residences. Limited data have been collected on pesticide concentrations in residential air and surfaces following application. Models may be useful for interpreting these data and to make predictions about concentrations in the home for other pesticides based on chemical properties. We present a dynamic mass-balance compartment model based on fugacity principles. The model includes air (both gas phase and aerosols), carpet, smooth flooring, and walls as model compartments. Six size fractions of particulate matter with different fate and transport properties are included. We determine the compartmental fugacity capacity and mass-transfer rate coefficients between compartments. We compare model results to chlorpyrifos air and carpet measurements from an independent study. For a comparison, we run the same simulation for diazinon and permethrin. We quantify the effect of parameter uncertainty and model uncertainties related to the source release rate and conduct a sensitivity analysis to determine which parameters contribute most to output uncertainty. In the model comparison to chlorpyrifos measurements, the model results are of the same order of magnitude as measured values but tend to overpredict the measured data, thus indicating the need for a better understanding of emissions from treated surfaces.

Original languageEnglish (US)
Pages (from-to)2142-2152
Number of pages11
JournalEnvironmental Science and Technology
Volume38
Issue number7
DOIs
StatePublished - Apr 1 2004
Externally publishedYes

Fingerprint

fugacity
Pesticides
pesticide
Chlorpyrifos
chlorpyrifos
air
Air
Diazinon
Permethrin
permethrin
diazinon
Particulate Matter
Aerosols
Transport properties
Chemical properties
Sensitivity analysis
sensitivity analysis
particulate matter
chemical property
mass transfer

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Science(all)
  • Environmental Chemistry

Cite this

Fugacity-Based Indoor Residential Pesticide Fate Model. / Bennett, Deborah H; Furtaw, Edwin J.

In: Environmental Science and Technology, Vol. 38, No. 7, 01.04.2004, p. 2142-2152.

Research output: Contribution to journalArticle

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