Matthias Stölzel

TL;DR: Overall, although these intercomparisons suggest areas where further research is needed, they provide support the contention that PM2.5 mass source apportionment results are consistent across users and methods, and that today's sourceapportionment methods are robust enough for application to PM2-5 health effects assessments.

TL;DR: This study shows that UFP, representing fresh combustion particles, may be an important component of urban air pollution associated with health effects and found statistically significant associations between elevated ultrafine particle (UFP) NC and total as well as cardio-respiratory mortality.

TL;DR: The results suggest that the PM fraction originating from combustion processes, notably traffic, exacerbates ischemic heart diseases associated with PM mass, and is associated with ST segment depressions.

TL;DR: The strong correlation of particle number concentrations with NO, which is considered to be typically emitted by traffic, and the striking similarity of their diurnal variation suggest that a sizable fraction of the particle number concentration is associated with emission from vehicles.

TL;DR: Supporting evidence is provided that existing PM2.5 source apportionment methods can be used to derive reliable insights into the source components that contribute to PM 2.5 health effects.