Glossary

other test method 33A (OTM 33A)

EPA OTM 33A uses fast response instruments mounted on ground-based vehicles for the geospatial measurement of air pollution (GMAP) near the driving route. Typically, the vehicle remains stationary for an extended period of time as the methane plume washes over it. Location and source emission rate are estimated. Source

Let’s work together on your emissions management and technology challenges.

Over 1,000 subscribers receive our weekly Highwood Bulletin.

Please fill out the form and you will receive the download link via e-mail.

Please fill out the form and you will receive the download link via e-mail.