Founded in 1991, Air Pollution Testing is one of the leading providers of monitoring services in a variety of industries. The company specializes in stack emissions testing, air pollution monitoring, and relative accuracy test audits. It also offers consultation services, such as review of existing emissions data and reports, development of testing programs, interpretation of analytical data, assistance with regulatory issues, seminars, and technical training. Its additional service includes portable gas chromatography, a periodic monitoring protocol. Air Pollution Testing provides a wide range of products, such as gas rentals, continuous emission monitoring system trailers, and various other instruments. The company is staffed with more than 30 factory-trained and experienced technicians. Located in Arvada, Colo., it has an additional branch in Salt Lake City.