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EPA Issues Final Rule that Revises the Guideline on Air Quality Models
December 22, 2016
 

On December 20, 2016, U.S. Environmental Protection Agency (EPA) issued a final rule on Appendix W that revises the Guideline on Air Quality Models. The Guideline provides EPA-recommended models and other techniques, as well as guidance for their use, for predicting ambient concentrations of air pollutants. The changes enhance the formulation and application of the agency’s AERMOD dispersion model, prescribe modeling techniques for secondarily formed fine particle and ozone pollution for single sources as well as makes various editorial improvements.

 

The Guideline is currently used by the EPA, states, tribes, and industry to prepare and review permits for new sources of air pollution. In addition, state and tribal air agencies use the Guideline to revise their plans detailing strategies for reducing emissions and improving air quality known as State or Tribal Implementation Plans.

 

Visit the EPA’s website for more information on these changes.

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