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Inflammatory and coagulatory markers and exposure to different size fractions of particle mass, number and surface area air concentrations in Swedish iron foundries, in particular respirable quartz
Örebro University, School of Science and Technology. Department of Occupational and Environmental Medicine Örebro University Hospital, Örebro, Sweden. (Inflammatory Response and Infection Susceptibility Centre (iRiSC))
Örebro University, School of Medical Sciences. (Inflammatory Response and Infection Susceptibility Centre (iRiSC))
Örebro University, School of Medical Sciences. (Inflammatory Response and Infection Susceptibility Centre (iRiSC))ORCID iD: 0000-0002-9631-2169
Department of Occupational and Environmental Medicine, Faculty of Medicine and Health, Örebro University, Sweden.
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2019 (English)In: International Archives of Occupational and Environmental Health, ISSN 0340-0131, E-ISSN 1432-1246Article in journal (Refereed) Epub ahead of print
Abstract [en]

PURPOSE: To study the relationship between inhalation of airborne particles and quartz in Swedish iron foundries and markers of inflammation and coagulation in blood.

METHODS: Personal sampling of respirable dust and quartz was performed for 85 subjects in three Swedish iron foundries. Stationary measurements were used to study the concentrations of respirable dust and quartz, inhalable and total dust, PM10 and PM2.5, as well as the particle surface area and the particle number concentrations. Markers of inflammation, namely interleukins (IL-1β, IL-6, IL-8, IL-10 and IL-12), C-reactive protein, and serum amyloid A (SAA) were measured in plasma or serum, together with markers of coagulation including fibrinogen, factor VIII (FVIII), von Willebrand factor and D-dimer. Complete sampling was performed on the second or third day of a working week after a work-free weekend, and follow-up samples were collected 2 days later. A mixed model analysis was performed including sex, age, smoking, infections, blood group, sampling day and BMI as covariates.

RESULTS: The average 8-h time-weighted average air concentrations of respirable dust and quartz were 0.85 mg/m3 and 0.052 mg/m3, respectively. Participants in high-exposure groups with respect to some of the measured particle types exhibited significantly elevated levels of SAA, fibrinogen and FVIII.

CONCLUSIONS: These observed relationships between particle exposure and inflammatory markers may indicate an increased risk of cardiovascular disease among foundry workers with high particulate exposure.

Place, publisher, year, edition, pages
Springer Berlin/Heidelberg, 2019.
Keywords [en]
Inflammatory markers, Iron foundries, Particle mass, Particle number, Particle surface area, Respirable quartz
National Category
Occupational Health and Environmental Health
Research subject
Occupational and Environmental Medicine; Biomedicine
Identifiers
URN: urn:nbn:se:oru:diva-76003DOI: 10.1007/s00420-019-01446-zOAI: oai:DiVA.org:oru-76003DiVA, id: diva2:1347719
Funder
Forte, Swedish Research Council for Health, Working Life and Welfare, 2014-0802Knowledge Foundation, 20150036Available from: 2019-09-02 Created: 2019-09-02 Last updated: 2019-09-06Bibliographically approved

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Westberg, HåkanHedbrant, AlexanderPersson, AlexanderSärndahl, Eva

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3233343536373835 of 116
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