Evaluation of occupational exposure to airborne quartz in the cutting and grinding of ceramic tiles.

Crystalline silica was categorized by the International Agency for Research on Cancer as a known human carcinogen. Activities related to the processing of ceramic tiles, releasing crystalline silica, may vary considerably in terms of hours worked per day and days worked per week. This variability co...

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Publicado en:Annals of Work Exposures & Health Vol. 70; no. 1; pp. 1 - 11
Autores principales: Borghi, Francesca, Graziosi, Francesca, Contessi, Silvia, Christiani, David C, Decataldo, Francesco, Glass, Deborah, Violante, Francesco S
Formato: research tables/charts Journal Article
Publicado: Oxford University Press / USA Jan2026
Acceso en línea:Ver este registro en EBSCOhost
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      dt: Jan2026
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        atl: Evaluation of occupational exposure to airborne quartz in the cutting and grinding of ceramic tiles.
      aug:
        au:
          Borghi, Francesca
          Graziosi, Francesca
          Contessi, Silvia
          Christiani, David C
          Decataldo, Francesco
          Glass, Deborah
          Violante, Francesco S
        affil: Occupational Medicine Unit, Department of Medical and Surgical Sciences, Alma Mater Studiorum University of Bologna, Bologna, Italy
      sug:
        subj:
          Silicon Compounds Adverse Effects
          Occupational Exposure Adverse Effects
          Air Pollutants, Occupational Adverse Effects
          Environmental Monitoring
          Inhalation Exposure Adverse Effects
          Air Pollution, Indoor Adverse Effects
          Blue Collar Workers
          Human
          Italy
          Dust Analysis
          Descriptive Statistics
          Particulate Matter Analysis
          Extraction and Processing Industry
          Vibration
          Funding Source
          Shiftwork
          Respiratory Protective Devices Utilization
          Occupational Health
          X-Rays
      ab: Crystalline silica was categorized by the International Agency for Research on Cancer as a known human carcinogen. Activities related to the processing of ceramic tiles, releasing crystalline silica, may vary considerably in terms of hours worked per day and days worked per week. This variability could be particularly high for craftsmen who process ceramic materials directly on-site during installation. The aim of this study is to measure the likely exposure to respirable crystalline silica (RCS) during ceramic tiles installation, evaluating the exposure to RCS of workers processing these tiles. Exposure assessments to RCS were conducted via both fixed-site and personal sampling for 2 working hours. The measured concentrations were calculated as 8-h time-weighted average (TWA) exposures, assuming no further RCS exposure in the time period. The permitted exposure time, not to exceed the occupational exposure limit (OEL) value, was then calculated also considering the assigned protection factor of selected respiratory protective equipment. The results of this study, considered as a worst-case simulation, show that, during the processing of ceramic tiles releasing RCS, the worker exposure can be very high (up to 240.9 µg/m3), exceedance of several OELs, including the European OEL of 100 µg/m³. Even working for a few hours a day, the RCS 8-h TWA OEL is likely to be exceeded. Inhaled exposure concentrations can be reduced by using appropriate respiratory protection, by a factor equal to 10 or 20. The assumption of this work was that (i) the cutting/grinding times are not always necessarily equal to 2 h and that (ii) these processes are not characterized by pre-established and continuous processing times. For these reasons, it is important to carefully evaluate the duration of exposure to RCS during the various tasks/activities performed, as these may vary depending on different factors.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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