Trends in exposure to respirable crystalline silica (1986-2014) in Australian mining

Research output: Contribution to journalArticle

Abstract

Background: Respirable crystalline silica (RCS) has been associated with severe health risks. Exposures in Western Australia (WA) have been typically high in hard-rock mining and have reduced substantially since the mid-1900s. We described trends in RCS exposure in WA miners over the past 30 years. Methods: A total of 79 445 reported personal RCS exposure measurements, covering the years 1986-2014, were examined. Mixed-effects models were applied to estimate RCS exposure levels, including spline terms to estimate a time trend. Results: An overall downward trend of about −8% per year was observed for RCS exposures in WA mining. Highest RCS exposure levels were modeled for base metal mining and exploration settings. Drilling occupations were among the highest exposed jobs. Conclusion: RCS exposure levels have fallen considerably in the last three decades. However, there are still mining occupations that may need further attention to avoid adverse health effects in these workers.

Original languageEnglish
Pages (from-to)673-678
Number of pages6
JournalAmerican Journal of Industrial Medicine
Volume60
Issue number8
DOIs
Publication statusPublished - 1 Aug 2017

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Silicon Dioxide
Western Australia
Occupations
Health
Metals

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title = "Trends in exposure to respirable crystalline silica (1986-2014) in Australian mining",
abstract = "Background: Respirable crystalline silica (RCS) has been associated with severe health risks. Exposures in Western Australia (WA) have been typically high in hard-rock mining and have reduced substantially since the mid-1900s. We described trends in RCS exposure in WA miners over the past 30 years. Methods: A total of 79 445 reported personal RCS exposure measurements, covering the years 1986-2014, were examined. Mixed-effects models were applied to estimate RCS exposure levels, including spline terms to estimate a time trend. Results: An overall downward trend of about −8{\%} per year was observed for RCS exposures in WA mining. Highest RCS exposure levels were modeled for base metal mining and exploration settings. Drilling occupations were among the highest exposed jobs. Conclusion: RCS exposure levels have fallen considerably in the last three decades. However, there are still mining occupations that may need further attention to avoid adverse health effects in these workers.",
keywords = "miners, occupational exposure, personal exposure, quartz, temporal trend",
author = "Susan Peters and Roel Vermeulen and Lin Fritschi and Musk, {AW (Bill)} and Alison Reid and {de Klerk}, Nicholas",
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Trends in exposure to respirable crystalline silica (1986-2014) in Australian mining. / Peters, Susan; Vermeulen, Roel; Fritschi, Lin; Musk, AW (Bill); Reid, Alison; de Klerk, Nicholas.

In: American Journal of Industrial Medicine, Vol. 60, No. 8, 01.08.2017, p. 673-678.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Trends in exposure to respirable crystalline silica (1986-2014) in Australian mining

AU - Peters, Susan

AU - Vermeulen, Roel

AU - Fritschi, Lin

AU - Musk, AW (Bill)

AU - Reid, Alison

AU - de Klerk, Nicholas

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N2 - Background: Respirable crystalline silica (RCS) has been associated with severe health risks. Exposures in Western Australia (WA) have been typically high in hard-rock mining and have reduced substantially since the mid-1900s. We described trends in RCS exposure in WA miners over the past 30 years. Methods: A total of 79 445 reported personal RCS exposure measurements, covering the years 1986-2014, were examined. Mixed-effects models were applied to estimate RCS exposure levels, including spline terms to estimate a time trend. Results: An overall downward trend of about −8% per year was observed for RCS exposures in WA mining. Highest RCS exposure levels were modeled for base metal mining and exploration settings. Drilling occupations were among the highest exposed jobs. Conclusion: RCS exposure levels have fallen considerably in the last three decades. However, there are still mining occupations that may need further attention to avoid adverse health effects in these workers.

AB - Background: Respirable crystalline silica (RCS) has been associated with severe health risks. Exposures in Western Australia (WA) have been typically high in hard-rock mining and have reduced substantially since the mid-1900s. We described trends in RCS exposure in WA miners over the past 30 years. Methods: A total of 79 445 reported personal RCS exposure measurements, covering the years 1986-2014, were examined. Mixed-effects models were applied to estimate RCS exposure levels, including spline terms to estimate a time trend. Results: An overall downward trend of about −8% per year was observed for RCS exposures in WA mining. Highest RCS exposure levels were modeled for base metal mining and exploration settings. Drilling occupations were among the highest exposed jobs. Conclusion: RCS exposure levels have fallen considerably in the last three decades. However, there are still mining occupations that may need further attention to avoid adverse health effects in these workers.

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