University of California, Riverside

Center for Environmental Research & Technology

Portable Emissions Measurement System

CE-CERT has a fully 1065 approved gaseous and PM PEMS system for on-road and off-road applications. The PEMS utilizes the AVL M.O.V.E. system for gaseous emission measurements and the AVL 494 system for PM measurements. The AVL M.O.V.E. is equipped with a non-dispersive ultraviolet (NDUV) analyzer for measuring oxides of nitrogen (NO and NO2), a non-dispersive infrared (NDIR) analyzer for measuring CO and CO2, and a flame ionization detector (FID) for measuring total hydrocarbons (THC). The gaseous data is measured as a concentration and is time aligned and flow weighted to the exhaust flow for total mass reporting. All time alignment and flow weighting is performed as part of the post processor systems for both PEMS. The exhaust flow meter is integrated with the gaseous PEMS and is designed to work with a wide range of exhaust flows and dynamics of transient vehicle testing. The exhaust flow meter uses differential pressure as its measurement principle.

Applications include:

  • Off-Road Construction Equipment (PEMS on top of unit shown below)
  • Light Duty Vehicles
  • Trucks and Buses
  • Rail and Marine Vessels
PEMS Testing Rates (*excluding operator’s labor)
Gas PEMS only* $3,040 $7,600 $27,360
Gas+PM PEMS* $4,560 $12,160 $43,320
Lead Staff Salary TBD TBD TBD

For all pricing inquiries, please contact Kent Johnson at (951) 781-5786 or




More Information 

General Campus Information

University of California, Riverside
900 University Ave.
Riverside, CA 92521
Tel: (951) 827-1012

Center Information

Center for Environmental Research & Technology
1084 Columbia Avenue
Riverside, CA 92507
Directions to CERT

Tel: (951) 781-5791
Fax: (951) 781-5790

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