Ambient air quality standards are difficult to meet with traditional dispersion modeling techniques. The use of wind tunnel testing can be a great option to determine more accurate dimensions to mitigate over-predictions in downwash. This method has been used for over two decades in regulatory modeling yielding significant savings in time and money.

Read more about this method and how to diagnose all inputs to AERMOD in EM Magazine feature article, “Using Physical Modeling to Refine Downwash Inputs to AERMOD”, by CPP’s Dr. Ron Petersen and Dr. Sergio Guerra.

This article appears in the October 2016 issue of EM Magazine, a copyrighted publication of the Air & Waste Management Association (A&WMA; www.awma.org). Our thanks to A&WMA for allowing us to make this publication available.