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Chronic Occupational Exposure to Traffic Pollution Is Associated with Increased Carotid Intima-Media Thickness in Healthy Urban Traffic Control Police

Author

Listed:
  • Abdulrazak O. Balogun

    (Department of Safety and Occupational Health Applied Sciences, Keene State College, Keene, NH 03431, USA)

  • M. Margaret Weigel

    (Department of Environmental & Occupational Health, School of Public Health, Indiana University-Bloomington, 1025 E. 7th Street, Bloomington, IN 47403, USA
    Global Environmental Health Research Laboratory, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA
    Center for Latin American & Caribbean Studies, Indiana University-Bloomington, Bloomington, IN 47405, USA
    IU Center for Global Health Equity, Indiana University, 702 Rotary Circle, Indianapolis, IN 46202, USA)

  • Edmundo Estévez

    (Centro de Biomedicina, Universidad Central del Ecuador, Quito 170129, Ecuador
    Postgraduate Program in Public Health, Universidad Autónoma Regional de los Andes (UNIANDES), Ambato 180150, Ecuador)

  • Rodrigo X. Armijos

    (Department of Environmental & Occupational Health, School of Public Health, Indiana University-Bloomington, 1025 E. 7th Street, Bloomington, IN 47403, USA
    Global Environmental Health Research Laboratory, Indiana University-Bloomington School of Public Health, Bloomington, IN 47405, USA
    Center for Latin American & Caribbean Studies, Indiana University-Bloomington, Bloomington, IN 47405, USA
    IU Center for Global Health Equity, Indiana University, 702 Rotary Circle, Indianapolis, IN 46202, USA)

Abstract

Urban traffic officers in many low- and middle-income countries are exposed to high levels of traffic-related air pollutants (TRAP) while working vehicle control on heavily congested streets. The impact of chronic TRAP exposure on the cardiovascular health, including the carotid intima-media thickness (CIMT), of this outdoor occupational group remains unclear. This cross-sectional study compared the average mean and maximum CIMT measurements of two groups of relatively young, healthy traffic police (32 ± 7 years; 77% male) in Quito, Ecuador, who were without clinical evidence of serious cardiovascular or other disease. Previously published background data on PM 10 (a TRAP surrogate) indicated that street levels of the pollutant were several orders of magnitude higher at the street intersections worked by traffic police compared to those working only in an office. Accordingly, officers permanently assigned to daily traffic control duties requiring them to stand 0–3 m from heavily trafficked street intersections were assigned to the high exposure group (n = 61). The control group (n = 54) consisted of officers from the same organization who were permanently assigned to office duties inside an administration building. Mean and maximum CIMT were measured with ultrasound. General linear models were used to compare the CIMT measurements of the high exposure and control groups, adjusting for covariates. The adjusted average mean and maximum CIMT measures of the high exposure group were increased by 11.5% and 10.3%, respectively, compared to the control group ( p = 0.0001). These findings suggest that chronic occupational exposure to TRAP is associated with increased CIMT in traffic police. This is important since even small increases in arterial thickening over time may promote earlier progression to clinical disease and increased premature mortality risk.

Suggested Citation

  • Abdulrazak O. Balogun & M. Margaret Weigel & Edmundo Estévez & Rodrigo X. Armijos, 2023. "Chronic Occupational Exposure to Traffic Pollution Is Associated with Increased Carotid Intima-Media Thickness in Healthy Urban Traffic Control Police," IJERPH, MDPI, vol. 20(17), pages 1-13, September.
  • Handle: RePEc:gam:jijerp:v:20:y:2023:i:17:p:6701-:d:1231179
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    References listed on IDEAS

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    2. Kabindra M. Shakya & Richard E. Peltier & Yimin Zhang & Basu D. Pandey, 2019. "Roadside Exposure and Inflammation Biomarkers among a Cohort of Traffic Police in Kathmandu, Nepal," IJERPH, MDPI, vol. 16(3), pages 1-16, January.
    3. Jean-Pierre Nicolas, 2000. "Analysing road traffic influences on air pollution: How to achieve sustainable urban development," Post-Print halshs-01357084, HAL.
    4. Jean-Pierre Nicolas, 2000. "Analysing road traffic influences on air pollution: How to achieve sustainable urban development," Transport Reviews, Taylor & Francis Journals, vol. 20(2), pages 219-232, January.
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