Welcome to Air Control Techniques, P.C.

Air Control Techniques, P.C. senior personnel have between 20 and 45 years of field experience in air emission testing, ambient air monitoring, and industrial air pollution control equipment performance optimization.

Photochemical Dioxin-Furan Control Systems

Innovative photochemical system to destroy dioxin-furans in industrial gas streams


Testing and Monitoring


Air Pollution Control Equipment Engineering


Recent News

Mr. Jonas Gilbert, a chemical engineering graduate of N.C. State University has joined our staff. 

Air Control Techniques, P.C. has published articles summarizing comprehensive, long-term respirable (PM4) crystalline silica studies at the fencelines of frac sand producing plants.  An article published in July in the Journal Atmosphere can be downloaded free of charge hereAn article published in October in the Journal of Mining Engineering can be purchased for a nominal fee here.

Air Control Techniques, P.C. has published articles concerning PM2.5 emission factors from sand-producing facilities in Arizona and the development of a new PM2.5 emission test method for saturated or droplet-laden wet scrubber stacks.  This paper was presented at the June 2015 Air & Waste Management Conference in Raleigh, NC.  A similar paper concerning PM2.5 emission factors for a crushed stone plant in North Carolina was published in the June 2014 Air & Waste Management Conference in Long Beach, California.  We are continuing to develop new, more accurate and economical techniques to develop PM2.5 emission factors.  Please contact us for copies of these papers.

Work is continuing on the development of a wet stack filterable PM2.5 test method for moisture saturated or droplet-laden wet scrubber stacks.  This method will soon be available to provide accurate filterable PM2.5 emission data and thereby avoid the bias to higher-than-true emissions that results by assuming that 100% of the filterable particulate matter measured in wet stacks in in the PM2. 5 size range. 

We are evaluating possible changes to EPA reference method test procedures published in the September 8th Federal Register and listed in Docket EPA-HQ-OAR-2014-0292.  We anticipate filing technical comments prior to the December 8th submittal deadline. 

John Richards has been awarded the Recognition of Excellence award by the National Industrial Sand Association during a conference in Palm Beach, Florida in September. 

Air Control Techniques, P.C. is developing a new sampler for coarse particulate matter.  This new method will provide an economical means to evaluate the spatial distribution of coarse particulate matter from Mineral Industry sources.