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EFFECTS OF METEOROLOGY ON THE TRANSPORT OF DISPERSION OF EMISSIONS FROM THE WTC RECOVERY SITE

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

Citation:

Huber, A H., R C. Gilliam, H. Felngersh, AND R. Kelly. EFFECTS OF METEOROLOGY ON THE TRANSPORT OF DISPERSION OF EMISSIONS FROM THE WTC RECOVERY SITE. Presented at ISEA/ISEE 2002 Conference, Vancouver, Canada, August 11-15, 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:

    Since September 11, 2001, the EPA National Exposure Research Laboratory (NERL) has applied its meteorological measurements and modeling to support WTC recovery projects. The local meteorology is a key factor in both the diurnal and day-to-day changes in the ambient air concentration levels important to estimating outdoor human exposures. Routine National Weather Service models and measurements of meteorology provide broad coverage over the United States. NERL has a Meteorological Instrumentation Cluster (MIC3) of 3 trailers supporting a portable 10-m tower, a miniSODAR, and a larger SODAR system to vertically profile the site-specific atmospheric winds.

    Record Details:

    Record Type:DOCUMENT( PRESENTATION/ ABSTRACT)
    Product Published Date:08/11/2002
    Record Last Revised:06/21/2006
    Record ID: 63963