Effects of short-term exposure to fine and ultrafine particles from indoor sources on arterial stiffness - A randomized sham-controlled exposure study

Autor: Bryan Hellack, Thomas A. J. Kuhlbusch, Birgitta Sasse, Samir Shinnawi, Heinz Kaminski, Vanessa J. Soppa, Barbara Hoffmann, Ulrich Quass, Roel P. F. Schins, Frauke Hennig
Rok vydání: 2019
Předmět:
Zdroj: International journal of hygiene and environmental health. 222(8)
ISSN: 1618-131X
Popis: Objectives Particulate air pollution is linked to adverse cardiovascular effects, including arterial stiffness. The aim of the study was to investigate the effect of short-term exposure to indoor fine and ultrafine particles on augmentation index (AIx), augmentation pressure (AP), and pulse wave velocity (PWV), early signs of vascular damage. Methods We analyzed the association of particle emissions from typical indoor sources (candle burning - CB, toasting bread - TB, and frying sausages - FS) with changes in pulse wave analysis indices in 55 healthy adults in a randomized cross-over controlled exposure study. Particle mass concentration (PMC), size-specific particle number concentration (PNC) and lung-deposited particle surface area concentration (PSC) were measured during the 2 h exposure. AIx and AP were measured before, directly, 2, 4 and 24 h after exposure. PWV was measured directly and 24 h after exposure. We performed multiple mixed linear regression analyses of different particle metrics and AIx, AP and PWV. Results The highest mean PMC was observed during FS reaching a maximum of 210 μg/m3 PM10. The maximal PNC for UFP Conclusions Our study indicates effects of indoor exposure to fine and ultrafine particles on systemic arterial stiffness indices that depend on the indoor source as well as on particle metric. Differences in size-specific physical characteristics of source-specific particles might account for these differential effects. We did not observe clear and stable associations of indoor particle exposure and PWV.
Databáze: OpenAIRE