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Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector.
Ann Work Expo Health. 2023 03 15; 67(3):392-401.AW

Abstract

While between- and within-worker variability have been studied quite extensively, hardly any research is available that examines long-term trends in the variability of occupational exposure. In this first study on trends in occupational exposure variability temporal changes in the variability of respirable dust and respirable quartz concentrations within the European industrial minerals sector were demonstrated. Since 2000 the European Industrial Minerals Association's Dust Monitoring Program (IMA-DMP) has systematically collected respirable dust and respirable quartz measurements. The resulting IMA-DMP occupational exposure database contains at present approximately 40 000 personal full-shift measurements, collected at 177 sites owned by 39 companies, located in 23 European countries. Repeated measurements of workers performing their duties within a specific site-job-campaign combination allowed estimation of within- and between-worker variability in exposure concentrations. Overall day-to-day variability predominated the between-worker variability for both respirable dust concentrations and quartz concentrations. The within-worker variability in concentrations by job was two to three times higher for respirable quartz than for respirable dust. The median between-worker variability in respirable dust concentrations was low and further reduced over time. For quartz concentrations the same phenomenon albeit somewhat less strong was observed. In contrast, for the within-worker variability in concentrations downward and upward temporal trends were apparent for both respirable dust and respirable quartz. The study shows that the (relative) size of temporal variability is large and unpredictable and therefore regular measurement campaigns are needed to ascertain compliance to occupational exposure limit values.

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Authors+Show Affiliations

Zilaout H
Institute for Risk Assessment Sciences, Utrecht University, 3584 CS Utrecht, The Netherlands.
Houba R
Institute for Risk Assessment Sciences, Utrecht University, 3584 CS Utrecht, The Netherlands. Netherlands Expertise Centre for Occupational Respiratory Disorders, 3584 CM Utrecht, The Netherlands.
Kromhout H
Institute for Risk Assessment Sciences, Utrecht University, 3584 CS Utrecht, The Netherlands.

MeSH

HumansOccupational ExposureDustQuartzEnvironmental MonitoringInhalation ExposureSilicon DioxideMineralsAir Pollutants, Occupational

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

36594971

Citation

Zilaout, Hicham, et al. "Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector." Annals of Work Exposures and Health, vol. 67, no. 3, 2023, pp. 392-401.
Zilaout H, Houba R, Kromhout H. Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector. Ann Work Expo Health. 2023;67(3):392-401.
Zilaout, H., Houba, R., & Kromhout, H. (2023). Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector. Annals of Work Exposures and Health, 67(3), 392-401. https://doi.org/10.1093/annweh/wxac093
Zilaout H, Houba R, Kromhout H. Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector. Ann Work Expo Health. 2023 03 15;67(3):392-401. PubMed PMID: 36594971.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Temporal Trends in Variability of Respirable Dust and Respirable Quartz Concentrations in the European Industrial Minerals Sector. AU - Zilaout,Hicham, AU - Houba,Remko, AU - Kromhout,Hans, PY - 2022/06/27/received PY - 2022/12/05/accepted PY - 2023/1/4/pubmed PY - 2023/3/21/medline PY - 2023/1/3/entrez KW - between-worker KW - exposure variability KW - industrial minerals KW - long-term trends KW - respirable dust KW - respirable quartz KW - variance components KW - within-worker SP - 392 EP - 401 JF - Annals of work exposures and health JO - Ann Work Expo Health VL - 67 IS - 3 N2 - While between- and within-worker variability have been studied quite extensively, hardly any research is available that examines long-term trends in the variability of occupational exposure. In this first study on trends in occupational exposure variability temporal changes in the variability of respirable dust and respirable quartz concentrations within the European industrial minerals sector were demonstrated. Since 2000 the European Industrial Minerals Association's Dust Monitoring Program (IMA-DMP) has systematically collected respirable dust and respirable quartz measurements. The resulting IMA-DMP occupational exposure database contains at present approximately 40 000 personal full-shift measurements, collected at 177 sites owned by 39 companies, located in 23 European countries. Repeated measurements of workers performing their duties within a specific site-job-campaign combination allowed estimation of within- and between-worker variability in exposure concentrations. Overall day-to-day variability predominated the between-worker variability for both respirable dust concentrations and quartz concentrations. The within-worker variability in concentrations by job was two to three times higher for respirable quartz than for respirable dust. The median between-worker variability in respirable dust concentrations was low and further reduced over time. For quartz concentrations the same phenomenon albeit somewhat less strong was observed. In contrast, for the within-worker variability in concentrations downward and upward temporal trends were apparent for both respirable dust and respirable quartz. The study shows that the (relative) size of temporal variability is large and unpredictable and therefore regular measurement campaigns are needed to ascertain compliance to occupational exposure limit values. SN - 2398-7316 UR - https://www.unboundmedicine.com/medline/citation/36594971/Temporal_Trends_in_Variability_of_Respirable_Dust_and_Respirable_Quartz_Concentrations_in_the_European_Industrial_Minerals_Sector_ DB - PRIME DP - Unbound Medicine ER -