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Radon data and time-lapse photos collected outside the Pinenut uranium mine, Arizona, 2015-16

Dates

Publication Date
Start Date
2015
End Date
2016

Citation

Naftz, D.L., Walton-Day, K., Gardner, W.P., Duniway, M.C., and Bills, D.J., 2018, Radon data and time-lapse photos collected outside the Pinenut uranium mine, Arizona, 2015-16: U.S. Geological Survey data release, https://doi.org/10.5066/F79Z946T.

Summary

Two Saphymo AlphaE radon (Rn) detectors, with a measurement range of 0.54 picoCuries per liter of air (pCi/L) to 270 nanoCuries per liter of air (nCi/L), were deployed from October 2015 thru May 2016 in publicly accessible areas adjacent to the Pinenut uranium mine located in northern Arizona. One monitor was installed in close proximity to the mine vent and a second monitor was installed in close proximity to the ore pile. In late December 2015, a third AlphaE Rn detector was deployed adjacent to the ore-pile monitor. Measurement frequency was 3 times per hour and a time-lapse camera was installed in close proximity to the ore pile to record relative size and activity of the ore pile during mining and early reclamation. Because of [...]

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Ore-pile-photo-JAN16.jpg thumbnail 86.76 KB
Alpha-E-lab-test-results.csv 124.08 KB
Pinenut-met-data-MAR15-MAY16.csv 596.32 KB
RAD 7-lab-test-results.csv 16.85 KB
Radon-time-lapse-photo-analysis.csv 880.71 KB
Rn-meters-all-MAR15-MAY16.csv 7.47 MB
Radon_time-lapse_metadata.xml
Original FGDC Metadata

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37.7 KB

Purpose

In 2012 the U.S. Secretary of the Interior approved a 20-year withdrawal of approximately 405,000 hectares of Federal land in northern Arizona to protect Grand Canyon National Park and the associated watershed from potentially adverse effects of mineral exploration and development. A key factor in the withdrawal decision was the limited amount of scientific data available to assess potential mineral extraction impacts. One of these unknowns was off-site levels of radon (Rn-air) potentially associated with uranium mining and reclamation activities. The Pinenut mine is one of the four approved underground mines that were allowed to operate during the withdrawal period. This exemption provided an opportunity to monitor off-site Rn-air concentration during mining and initial reclamation activities that occurred in 2015-16. In addition to the Rn-air monitoring data, a time-lapse camera was installed in close proximity to the uranium ore pile. Time-lapse photos were used to provide qualitative estimates of ore-pile size and human-induced disturbances (e.g. heavy equipment) during the mining and reclamation process. An on-site meteorological station was used to monitor wind speed, wind direction, and air temperature during the Rn-air monitoring.
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DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/F79Z946T

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