||Interagency Workgroup on Air Quality Modeling Phase 3 summary report : long-range transport and air quality related values (AQRVs).
||Environmental Protection Agency, Research Triangle Park, NC. Office of Air Quality Planning and Standards.
|| U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, Air Quality Assessment Division, Air Quality Modeling Group,
Air quality--United States--Mathematical models. ;
Air--Pollution--United States--Measurement. ;
Atmospheric diffusion--Mathematical models. ;
Nonpoint source pollution--United States. ;
Air quality--Mathematical models.
Air quality ;
Long range transport ;
Ground level ozone ;
Chemical transport models ;
Lagrangian models ;
Modeling systems ;
Environmental impacts ;
Mesoscale traffic flow models ;
AQRV(Air quality related values) ;
National Environmental Policy Act (NEPA)
||Research Triangle Park Library/RTP, NC
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||23 pages ; 28 cm
This document describes chemical and physical processes important to the formation of ground-level O3, PM2.5, visibility, and deposition in the context of modeled long-range transport assessments for permit review programs. Chemical transport models that characterize these processes include both Lagrangian, which typically only have a single-source included in the model, and photochemical grid models that include some representation of all anthropogenic, biogenic, and geogenic sources. Modeling systems appropriate for the purposes of estimating long-range transported single-source secondary impacts are described, and recommendations are made with respect to the use of certain types of modeling systems for this type of application. Model evaluation is important to ensure that a particular system is fit for the purpose of estimating long-range single-source secondary impacts. One aspect of this type of evaluation for long-range transport assessments would be demonstrating model skill in meteorological processes important for long distance transport by replicating appropriate mesoscale tracer release experiments. In addition to establishing whether a modeling system is generally appropriate for this purpose, project specific evaluations that compare model estimated meteorology and chemical estimates with measurements near the project source and key receptors is also an important model evaluation component.
Project officer: Kirk Baker Revision of EPA-454/P-15/003 Includes bibliographical references (pages 20-23). "EPA-454/R-16-002." "June 2016."