Estimating Relationships Between Arsenic Exposure Through Rice Consumption and Disease Public Deposited

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Last Modified
  • March 19, 2019
Creator
  • Yosim, Andrew
    • Affiliation: Gillings School of Global Public Health, Department of Environmental Sciences and Engineering
Abstract
  • Arsenic (As) is a carcinogen and developmental toxicant with significant detrimental health outcomes associated with early life exposure. Until recently, the potential for exposure to As via food in the US was considered minimal. Recent data suggest that rice may contain elevated levels of inorganic arsenic (iAs) and dimethylarsinic acid (DMA), which are associated with adverse health outcomes. In order to assess whether rice consumption could introduce exposure at levels of As associated with disease, As levels in 1,343 rice-based products from the FDA were analyzed and compared to three constructed daily exposure models. The majority of samples had elevated levels of As and an average single serving of rice, and many rice-products, either meets or exceeds a child's daily modeled exposure threshold. Estimates suggest average lifetime rice consumption equates to exposure levels of As known to be associated with elevated risk for lung and bladder cancer.
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  • In Copyright
Advisor
  • Ball, Louise
  • Nylander-French, Leena A.
  • Fry, Rebecca
Degree
  • Master of Science
Degree granting institution
  • University of North Carolina at Chapel Hill Graduate School
Graduation year
  • 2015
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  • Chapel Hill, NC
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