PROCEEDINGS of the International Conference on Transport and Environment: A Global Challenge Technological and Policy Solutions, Milan, Italy, 19-21 March 2007. SESSION C: Real World Emission Measurements

The introduction in the regulations of Real World Emissions Measurements with Portable Emissions Measurement Systems (PEMS) is a major step towards more transparency and a better control of the emissions from diesel-gasoline combustion engines. Testing with PEMS offers an important counterpart when traditional laboratory emissions test procedures cannot simulate the wide range of real world-conditions or are practically difficult to apply to large sources (such as big engines from locomotives or ships). As off today, Real World Emissions Measurements has already become an important regulatory tool to monitor the in-use compliance of heavy-duty vehicles and non-road mobile machinery and important programs worldwide are now aiming at introducing regulations based on Real World Emissions Measurements. At the same time, the portable measurement technology is rapidly becoming more compact and more advanced. The scope of the session was: • To compare results and to stimulate the exchange of information and views between the different worldwide regulatory programs based on PEMS; • To exchange views on the current test methods and data evaluation protocols; • To increase awareness about the technical possibilities in terms of measurement with portable emissions instruments; • To discuss the latest technological developments regarding on-board measurements of PM. Topics: • Worldwide legislation (Legislative research programs, Pilot programs) • Test protocols and instrumentation (Procedures for testing and data evaluation, NTE, developments of portable instruments) • Case studies (Light, heavy-duty, buses, ships, trains, aircrafts)JRC.H.4-Transport and air qualit