Short-Term Cumulative Exposure to Ambient Traffic-Related Black Carbon and Blood Pressure: MMDA Traffic Enforcers’ Health Study

Zypher Jude G. Regencia, Godofreda V. Dalmacion, Antonio D. Ligsay and Emmanuel S. Baja
Additional contact information
Zypher Jude G. Regencia: Department of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
Godofreda V. Dalmacion: Department of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines
Antonio D. Ligsay: The Graduate School & College of Science, University of Santo Tomas, Manila 1008, Philippines
Emmanuel S. Baja: Department of Clinical Epidemiology, College of Medicine, University of the Philippines Manila, Manila 1000, Philippines

IJERPH, 2021, vol. 18, issue 22, 1-16

Abstract: Exposure to traffic-related air pollution is linked with acute alterations in blood pressure (BP). We examined the cumulative short-term effect of black carbon (BC) exposure on systolic (SBP) and diastolic (DBP) BP and assessed effect modification by participant characteristics. SBP and DBP were repeatedly measured on 152 traffic enforcers. Using a linear mixed-effects model with random intercepts, quadratic (QCDL) and cubic (CCDL) constrained distributed lag models were fitted to estimate the cumulative effect of BC concentration on SBP and DBP during the 10 hours (daily exposure) and 7 days (weekly exposure) before the BP measurement. Ambient BC was related to increased BP with QCDL models. An interquartile range change in BC cumulative during the 7 days before the BP measurement was associated with increased BP (1.2% change in mean SBP, 95% confidence interval (CI), 0.1 to 2.3; and 0.5% change in mean DBP, 95% CI, −0.8 to 1.7). Moreover, the association between the 10-h cumulative BC exposure and SBP was stronger for female (4.0% change, 95% CI: 2.1–5.9) versus male and for obese (2.9% change, 95% CI: 1.0–4.8) vs. non-obese traffic enforcers. Short-term cumulative exposure to ambient traffic-related BC could bring about cardiovascular diseases through mechanisms involving increased BP.

Keywords: black carbon; diastolic blood pressure; MMDA traffic enforcers; obesity; sex; systolic blood pressure (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1660-4601/18/22/12122/pdf (application/pdf)
https://www.mdpi.com/1660-4601/18/22/12122/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jijerp:v:18:y:2021:i:22:p:12122-:d:682322

Access Statistics for this article

IJERPH is currently edited by Ms. Jenna Liu

More articles in IJERPH from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().