During motor transport operation, elevated concentrations of solid particles are formed in the air over the roadway as a result of particulate matter emissions from vehicle exhaust gases, tire and road surface wear particles, background air pollution and other processes. The content of tire and road surface wear particulates in the air over the roadway, as it has been specified in the previously submitted materials of the Russian delegation, amounts up to 60% from the total percentage of solid particles (WP-29-160-39). This paper presents further research into this subject.

Report on the deliberations of the Particle Measurement Programme informal group, including proposal for the PMP group to undertake the development of a set of recommended measurement techniques and sampling procedures, investigation of typical driving patterns, compilation and monitoring of on-going research projects, as well as networking and exchange of information with experts in the field of non-exhaust traffic related particle emissions.

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.

Discussion paper outlining concerns over particulates originating from tire erosion and suggesting a need for global regulatory provisions to limit such environmental risks.

Background paper in support of the Russian proposal to consider further sources of harmful emissions, especially particulates, such as from tires and brake pads.

Discussion paper on non-tailpipe vehicle emissions, especially related to air quality and suspended particulates along roadways. This subject includes particulates from tire and brake wear.

Summary of results from research by the Russian Federation into non-exhaust particle emissions from motor vehicles.