Associations between submicrometer particles exposures and blood pressure and heart rate in patients with lung function impairments

Kai J. Chuang, Chang Chuan Chan, Guang Ming Shiao, Ta Chen Su

Research output: Contribution to journalArticle

28 Citations (Scopus)


Objective: The objective of this study was to evaluate whether submicrometer particle is associated with elevated blood pressure (BP) and heart rate (HR). Methods: We measured ambulatory systolic BP (SBP), diastolic BP (DBP), and HR using a portable BP monitoring system and number concentrations of submicrometer particle with a size range of 0.02 to 1 μm (NC 0.02-1) by a P-TRAK Ultrafine Particle Counter for 10 patients with lung function impairments. Results: We found NC0.02-1 exposures at 1- to 3-hour moving averages were associated with the elevation of SBP, DBP, and HR. There were 1.4 to 3.4-mm-Hg increases in SBP, 1.4 to 2.2-mm-Hg increases in DBP, and 0.3 to 3.5-beats/min increases in HR for 10,000 particles/cm 3 increases in NC0.02-1 at 1- to 3-hour moving averages. Conclusions: Exposures to submicrometer particles were associated with short-term increases in BP and HR in patients with lung function impairments.

Original languageEnglish
Pages (from-to)1093-1098
Number of pages6
JournalJournal of Occupational and Environmental Medicine
Issue number11
Publication statusPublished - Nov 2005
Externally publishedYes


ASJC Scopus subject areas

  • Health, Toxicology and Mutagenesis
  • Public Health, Environmental and Occupational Health

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