Intellex Acquires Expert by Big Village

We're thrilled to announce that Intellex has acquired Expert by Big Village, effective March 22, 2024. This strategic move enhances our capabilities and strengthens our commitment to delivering exceptional solutions to our customers.

Stay tuned for more updates on how this acquisition will benefit our clients and experts.

For inquiries or more information, please contact us at


Expert Details

Environmental Air Sampling

ID: 108361 North Carolina, USA

Request Expert

AIR POLLUTION MEASUREMENT; ENVIRONMENTAL AIR SAMPLING; EXHAUST EMISSION MEASUREMENT. Expert co-founded the largest air source sampling company in the country and was its President for 20 years. He is nationally recognized in the field of emission measurement methodology and has 33 years of air pollution testing experience. While at the EPA, Expert was responsible for the development of the testing methodology and equipment that became EPA Methods 1 through 8. He went on to become the principal author of Methods 1 through 8 and developed and directed the source sampling courses. He also authored numerous emission measurement papers for publication. Since leaving the EPA in 1972, Expert has assisted in the improvement of most of the EPA's methods and co-authored the F-factors papers.

SMOKESTACK ANALYSIS; SMOKESTACK EMISSION; SMOKESTACK FLOW. Expert has worked extensively with smokestack emission analysis. He developed a method for calculating power plant emission rates and has published writings on the determination of fluorides in stack gases, methods to interpret stack sampling data, and field checking meter calibrations on EPA-type sampling trains.

EMISSION CHARACTERIZATION. Having sampled thousands of power boiler smokestacks, Expert authored two extensive research projects that characterize coal and oil emissions. He developed the F-factor, which converts emissions concentrations into weight per unit heat values, from which most combustion regulations are written. He has also authored six papers on combustion emissions.

AIR ANALYSIS INSTRUMENT; AIR-POLLUTION MONITORING EQUIPMENT; POLLUTION GAS ANALYZER. Expert co-founded a smokestack sampling instrument company in 1974. He was Vice President and designed the company's first products. These instrument designs are still the standard of source sampling equipment today. He also authored six air-sampling equipment papers for publication.

PARTICULATE MONITORING; PARTICULATE TESTING. Expert was responsible for developing the testing methodology and equipment that became Method 5, which is EPA's method for measuring particulates. These methods were refined in field applications under Expert's direction. He was also one of the three principal authors of Methods 1 through 8. In addition, during his 11-year association with the Public Health Service and EPA, Expert developed and directed the source sampling courses for the Air Pollution Training Institute.


Year Degree Subject Institution
Year: 1961 Degree: BS Subject: Chemical Engineering Institution: Bucknell University

Work History

Years Employer Title Department
Years: 1993 to Present Employer: Undisclosed Title: President Department:
Available upon request.
Years Employer Title Department
Years: 1974 to 1976 Employer: Undisclosed Title: Vice President Department:
Available upon request.
Years Employer Title Department
Years: 1972 to 1993 Employer: Undisclosed Title: Founder and President Department:
Available upon request.
Years Employer Title Department
Years: 1961 to 1972 Employer: U.S. Environmental Protection Agency Title: Engineer Department:
Available upon request.

Career Accomplishments

Associations / Societies
Expert is a member of the American Academy of Environmental Engineers and was the Founder of the Source Evaluation Society
Professional Appointments
Expert is the co-Founder and editor of an air sampling news source.
Awards / Recognition
Expert is an inductee of the SES Stack Sampling Hall of Fame.

Fields of Expertise

Request Expert

Dev Tool:

Request: expert/environmental-air-sampling
Matched Rewrite Rule: expert/([^/]+)(?:/([0-9]+))?/?$
Matched Rewrite Query: experts=environmental-air-sampling&page=
Loaded Template: single-experts.php