The MetroPEMS project will develop new standards and calibration procedures for the three key components of a PEMS system: determination of NOx concentrations, number of particulates (PN) and exhaust mass flow. Based on these new measurements an improved PEMS instrument will be developed and validated along with traceable methods to extend performance for NO2 concentrations below 10 μmol/mol and up to 2500 μmol/mol. The work is expected to support the comparability of air quality measures across the EU and help manufacturers conform to current and future legislation.

Find more information about the work packages and the MetroPEMS consortium.