Summary of discussions with a proposal for a work programme with the objective, among others, of developing a set of recommended sampling/measurement methodologies to address the problem of road, tire, and other non-exhaust airborne particles along roadways.

PMP work program including on exhaust emissions and non-exhaust (tire, brake) vehicle emissions.

Draft copy for PMP informal group comment of the JRC Science and Policy Report.

Presentation on Swedish and Scandinavian research into sources and impact of non-exhaust airborne particles, including from wear on roads, tires, brakes, and similar sources.

Summary of the PN calibration project under the European Metrology Research Programme’s project on “emerging requirements for measuring pollutants from automotive exhaust emissions” (EMRP ENV-02).

Discussion presentation on issues potentially impacting the measurement of PN during regeneration of gasoline particulate filters and diesel particulate filters on light-duty vehicles.

Presentation on REBRAKE, the European Commission-supported project to better understand brake-wear emissions and their impact on air quality.

This document describes the calibration and validation procedures for the VPR. Calibration of the VPR is to be performed at the point of manufacture and validation is to be performed at least at 6 month intervals for all instruments without automatic temperature sensors or at least at 12 month intervals if automatic temperature sensors are present. The calibration procedure must be repeated if the system ‘fails’ its validation procedure or the particle number measurement system is modified in any way.

Review of main issues concerning the measurement of sub-23 nm particles in vehicle exhaust, including work on NRMM vehicles.

Review by the Particle Measurement Program expert group of research on airborne particles from non-exhaust sources, especially particulates from brake friction materials and tires. The PMP group is evaluating whether such non-exhaust particulates represent an appropriate and feasible concern for further consideration as a possible regulatory issue.

Review of current evidence concerning risks from non-exhaust vehicle emissions and open questions regarding the potential value of a regulatory response.

Overview of literature related to particle emissions from tire and/or brake wear regarding importance of such particle emissions, physico-chemical characteristics, and possible health effects.

Review of data and conclusions from the World Business Council for Sustainable Development (WBCSD) Tire Industry Project study on airborne tire and road dust particles. Established in January 2006, the goal of the Tire Industry Project (TIP) is to identify and address the potential health and environmental impacts of materials associated with tire making and use. This project is chaired by the three largest tire manufacturers – Bridgestone (Japan), Goodyear (US) and Michelin (France) – and includes a total of eleven companies representing approximately 70% of the world’s tire manufacturing capacity.

Presentation concerning the measurement of sub23 nm vehicle emissions particles.

Discussion document as revised during the 29th PMP session.