TRC

Air Modeling

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As a leader in the air sciences for over 40 years, TRC provides modeling support for all aspects of project development phases, from conception to operation, including: air quality permitting, monitoring network design, environmental impact statements, compliance demonstrations, risk assessments, emergency response situations, litigation, atmospheric research programs, odor evaluation studies, and military/defense programs.

Industries

TRC is a leader in the evaluation, development and application of air quality dispersion and meteorological models.

TRC maintains a complete and current library of EPA recommended models, and air quality guidance documents from federal, state and local agencies to ensure that our model applications and modeling results will be acceptable for the intended regulatory application. Further, we have developed dispersion modeling algorithms to address specific project objectives.

TRC’s modeling staff, comprised of certified consulting meteorologists (CCM), qualified environmental professionals (QEP), environmental engineers and other related disciplines work closely with our project managers, permitting engineers and clients to conduct ambient air quality impact analyses. Our expert staff are proficient in the application of EPA recommended regulatory models as well as assessing and selecting alternative models that may be applicable to non-traditional applications. TRC experienced staff have worked for decades with federal and state regulatory agencies as well as federal land managers and understand the applicable modeling requirements and protocols to assure that our modeling analyses will be readily accepted and approved.

In support of risk assessment projects, TRC performs air modeling to characterize the release, transport and fate of chemicals in the environment. TRC provides exposure pathway evaluations, addressing both inhalation and non-inhalation exposure pathways as appropriate, to fully characterize air emissions-related risks.


TRC's Air Modeling services include:

  • Application of Air Dispersion Models, including: AERMOD, AERSCREEN, CALPUFF, SCICHEM, PLUVUE, VISCREEN, SCREEN3, ISCST3, OCD, CTSCREEN, CTDMPLUS, CAL3QHC/QHCR, NATE, CHARM® , DEGADIS, ALOHA, SLAB, EpiCODE, OBODM, and ARCHIE.
  • Meteorological Modeling: WRF, MM5.
  • Computational Fluid Dynamics (CFD): FLUENT, OpenFOAM.
  • Photochemical Grid Modeling: CMAQ, CAMx.
  • Odor Modeling
  • Emissions Modeling: MOVES, SMOKE.