Nicole A. Hagan

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BACKGROUND Colonial cinnabar mining and refining began in Huancavelica, Peru, in 1564. With a local source of mercury, the amalgamation process was adopted to refine silver in Potosí, Bolivia, in the early 1570s. As a result, large quantities of mercury were released into the environment. OBJECTIVES We used archival, primary, and secondary sources to(More)
Centuries of anthropogenic releases have resulted in a global legacy of mercury (Hg) contamination. Here we use a global model to quantify the impact of uncertainty in Hg atmospheric emissions and cycling on anthropogenic enrichment and discuss implications for future Hg levels. The plausibility of sensitivity simulations is evaluated against multiple(More)
This is the first study of adobe brick contamination anywhere in the world. Huancavelica, Peru is the site of historic cinnabar refining and one of the most mercury (Hg) contaminated urban areas in the world. Over 80% of homes in Huancavelica are constructed with adobe bricks made from Hg contaminated soil. In this study we measured total Hg concentrations(More)
Millions of dollars are spent annually on research to advance the scientific basis for setting air quality standards and implementing programs to protect public health and the environment. It is necessary for the U.S. Environmental Protection Agency's Office of Research and Development (ORD) to document and evaluate their accomplishments in order to(More)
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