Science Inventory

You are here:

EPA Home » Science Inventory » COOPERATIVE RESEARCH AND DEVELOPMENT FOR APPLICATION OF CFD TO ESTIMATING HUMAN EXPOSURES TO ENVIRONMENTAL POLLUTANTS

COOPERATIVE RESEARCH AND DEVELOPMENT FOR APPLICATION OF CFD TO ESTIMATING HUMAN EXPOSURES TO ENVIRONMENTAL POLLUTANTS

Contact

http://cfpub.epa.gov/si/si_public_comments.cfm

Citation:

Huber, A H., M. Freeman, K. H. Kuehlert, AND W. Schwarz. COOPERATIVE RESEARCH AND DEVELOPMENT FOR APPLICATION OF CFD TO ESTIMATING HUMAN EXPOSURES TO ENVIRONMENTAL POLLUTANTS. Presented at 2002 Fluent Users' Group Meeting, Manchester, NH, June 10-12, 2002.

Impact/Purpose:

The research is planned to meet the following objectives:

Support is provided to HEASD Tasks by Alan Huber. (60% 9524 New Air Toxics Modeling, ; 10% 5732 PM Population Exposure Modeling; 10% 3948 Next Generation MMMP Exposure Modeling; 10% N533 PM Toxic agent exposure modeling, and 10% 3957 Integrated Human Exposure Source-to-Dose Modeling)

  • Development of data and algorithms for exposure modeling in urban areas, to be used in refined probabilistic exposure models being developed elsewhere, to allow prediction of human exposures for an urban population.

  • Characterize exposures and variability of concentrations in critical microenvironments in urban areas using targeted measurement studies and refined air quality models.

  • Identify critical human activities influencing exposures, especially identifying microenvironments that are key to exposures to urban air toxics.

  • Develop methods (measurements, dispersion modeling, receptor modeling) to distinguish exposures to "near field" sources - like indoor sources, human activities or hobbies, or nearby point or area sources - from "background" concentrations or from distant sources that can be modeled well by compartmental or air quality models.

  • Provide data and algorithms based on a scientific understanding of exposure dynamics for inclusion in NERL human exposure models and other models like OAR's TRIM..

    • Description:

    Under a Cooperative Research and Development Agreement (CRADA), Fluent, Inc. and the US EPA National Exposure Research Laboratory (NERL) propose to improve the ability of environmental scientists to use computer modeling for environmental exposure to air pollutants in human exposure microenvironments. There is an ever-growing need for reliable tools that can assess human exposure to environmental pollutants. In recent years, Computational Fluid Dynamics (CFD) modeling has emerged as a promising technology for such assessment. CFD has the potential to yield more accurate solutions than other methodologies. Implementing CFD yields better predictions, because CFD is based on fundamental physics, on the effects of detailed three-dimensional geometry, and on local environmental conditions.

    Record Details:

    Record Type:DOCUMENT( PRESENTATION/ ABSTRACT)
    Product Published Date:06/10/2002
    Record Last Revised:06/21/2006
    Record ID: 62632