July 2017

In this issue of EM, you will find a close look at the U.S. Environmental Protection Agency’s (EPA) revisions to the Guideline on Air Quality Models: Enhancements to the AERMOD Dispersion Modeling System and Incorporation of Approaches to Address Ozone and Fine Particulate Matter, which became effective on May 22, 2017, and provide information concerning EPA-preferred models and other techniques, as well as guidance for their use in predicting ambient concentrations of air pollutants.

Inside This Month's Issue


EPA Updates Guideline on Air Quality Models
by Tony Schroeder, Jonathan Hill, and George Schewe

EPA’s Latest Guidance: Addressing Single-Source Impacts on Ozone and Secondary PM
by Anna Henolson and Justin Fickas

Progress on Low Wind Modeling Refinements in AERMOD
by Robert Paine and Jeff Connors

Continuous, Near Real-Time Evaluation of Air Quality Models: An Approach for the Rapid Scientific Evolution of Modeling Systems
by Brian Eder, Robert Gilliam, George Pouliot, Rohit Mathur, and Jonathan Pleim

Also This Month...

Federalism in Action: An EPA—South Carolina Collaborative Project to Design a Multipollutant Air Quality Management Plan
by Kimber Scavo, Tommy Flynn, Andy Hollis, Maeve Mason, Ali Kamal, and Neal Fann
A recent collaboration between South Carolina and the U.S. Environmental Protection Agency (EPA) suggests that a multipollutant approach to reducing air pollution is not only feasible, but that when the state and federal government work together closely, this approach may require less time and fewer resources than one might expect.

EPA Research Highlights: Tapping into Science and Technology to Battle Wildfires
by Michaela Burns and Ann Brown


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