ASSOCIATIONS BETWEEN SUBMICROMETER PARTICLES EXPOSURES AND BLOOD PRESSURE AND HEART RATE IN PATIENTS WITH LUNG FUNCTION IMPAIRMENTS
Resource
JOURNAL OF OCCUPATIONAL & ENVIRONMENTAL MEDICINE v.47 n.11 pp.1093-1098
Journal
JOURNAL OF OCCUPATIONAL & ENVIRONMENTAL MEDICINE
Journal Volume
v.47
Journal Issue
n.11
Pages
1093-1098
Date Issued
2005
Date
2005
Author(s)
CHUANG, KAI-JEN
CHAN, CHANG-CHUAN
Abstract
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 [mu]m (NC0.02-1) 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/cm3 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.(C)2005The American College of Occupational and
Environmental Medicine
Subjects
PARTICULATE AIR-POLLUTION
RATE-VARIABILITY
CARDIOVASCULAR-DISEASE
AMBIENT POLLUTION
MEASUREMENT-ERROR
MORTALITY
Type
journal article
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