Assessing present-day and historical exposures of workers to Taconite dust in the iron mining industry in northeastern Minnesota

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Assessing present-day and historical exposures of workers to Taconite dust in the iron mining industry in northeastern Minnesota

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2013-08

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The purpose of this research was to describe a multi-faceted approach to assessing present-day and historical exposure levels to EMP (elongate mineral particles), respirable dust, and respirable silica in the taconite mining industry in northeastern Minnesota. This effort was part of a larger epidemiological study assessing the respiratory health effects of exposure to components of taconite dust. There are four key areas of research within this dissertation: 1) Classify the workers into SEGs (similar exposure groups) that are distinct from each other and homogeneous within to facilitate the epidemiological analysis; 2) Develop a methodology assessing exposures to EMP based on a variety of size-based metrics; 3) Characterize the present-day exposure levels for each taconite dust component; 4) Develop a matrix of exposure levels by job category for computing cumulative doses.

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University of Minnesota Ph.D. dissertation. August 2013. Major: Environmental Health. Advisor: Gurumurthy Ramachandran. 1 computer file (PDF); xi, 205 pages.

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Hwang, Jooyeon. (2013). Assessing present-day and historical exposures of workers to Taconite dust in the iron mining industry in northeastern Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/158414.

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