Diesel Particulate Matter Criteria for Evaluation of Health Effects

Authors

Dr.-Ing. N. Metz, BMW Group, Munich

Year

2003

Print Info

Fortschritt-Berichte VDI, Reihe 12, Nr. 539

Summary

Mechanisms for health effects of diesel particulate matter is also today not fully clear. Therefore the parameters mass, size distribution, number, ultrafine particles, surface, chemical composition and morphology are used to limit the most probable criteria for health effects. Exhaust emissions from passenger cars and duty vehicles are given for all parameters above and possible mechanism for health effects are discussed. Additionally to the size, the deposited particle mass in the lung, the chemical composition of adsorbed material and the hydrophobic, respectively hydrophilic character also the surface is considered. Due to the complex interaction of all parameters health effects cannot be characterized with one parameter alone. It is necessary to evaluate all parameters to understand the mechanism of health effects and to be able to derive effective measures to improve the situation. Knowing all parameters and their dependencies from each other the further application of the specific gravimetrical determination of mass for certification procedures is the most efficient way.

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