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9429011 
Meetings & Symposia 
Indoor residential fate model of phthalate plasticizers 
Liang, Y; Xu, Y 
2011 
1 
1-6 
English 
has other version or edition 9429028 Indoor residential fate model of phthalate plasticizers
Phthalates are ubiquitous pollutants in indoor environments and have emerged as a serious public concern due to their adverse effects on humans. It is necessary to characterize emission of phthalates from indoor sources and their environmental fates thereafter. Such knowledge will provide a foundation for exposure/risk assessments and interventions aimed at reducing phthalate exposures. Using emissions of di-2-ethylhexyl phthalate (DEHP) from vinyl flooring as an illustrative example, we developed a three-compartment model to predict the fate and transport of phthalates in a residential home. Because particles are important carriers of phthalates due to the strong partitioning, particle transport (deposition and resuspension) was included in the model. Model predictions were agreed well with field measurements on phthalate concentrations in air and settled dust. The results showed that indoor suspended particles and ventilation rate both have strong impact on indoor phthalate levels and phthalates persist for years after the source is removed. 
Dust; Particle transport; Phthalates; Sorption; Three-compartment model; Di-2-ethylhexyl phthalate; Environmental fate; Fate and transport; Particle transport; Phthalate exposures; Phthalate plasticizers; Phthalates; Suspended particles; Dust; Housing; Indoor air pollution; Particle separators; Potassium compounds; Solvents; Sorption; Esters