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The explosion at the Chernobyl nuclear power plant on 26 April 1986 released vast amounts of radioactive material over an area of 200,000 km2 in eastern and central Europe, affecting all living organisms. The biological impacts including the conservation consequences of this event are still poorly known even 25 years after the disaster. Here we assess the effects of this environmental disaster for conservation by focusing on two connected questions addressing the short-term ecological and the long-term evolutionary consequences: First, we pose the question of whether rare species are more impacted by radiation than common species? Second, what are the conservation consequences of elevated mutation rates due to the...
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The National Geologic Map Database (NGMDB) is a Congressionally mandated national archive of geoscience maps, reports, and stratigraphic information. The Geologic Mapping Act of 1992 and its Reauthorizations calls for the U.S. Geological Survey and the Association of American State Geologists (AASG) to cooperatively build this national archive, according to technical and scientific standards whose development is coordinated by the NGMDB. The NGMDB consists of a comprehensive set of publication citations, stratigraphic nomenclature, downloadable content in raster and vector formats, unpublished source information, and guidance on standards development. The NGMDB contains information on more than 110,000 maps and...
Tags: AASG, Aeromagnetics, Association of American State Geologists, Bedrock geology, CSS, All tags...
The explosion at the Chernobyl nuclear power plant on 26 April 1986 released vast amounts of radioactive material over an area of 200,000 km2 in eastern and central Europe, affecting all living organisms. The biological impacts including the conservation consequences of this event are still poorly known even 25 years after the disaster. Here we assess the effects of this environmental disaster for conservation by focusing on two connected questions addressing the short-term ecological and the long-term evolutionary consequences: First, we pose the question of whether rare species are more impacted by radiation than common species? Second, what are the conservation consequences of elevated mutation rates due to the...
In the early 1960s, the US Geological Survey began routinely analysing river water samples for tritium concentrations at locations within the Mississippi River basin. The sites included the main stem of the Mississippi River (at Luling Ferry, Louisiana), and three of its major tributaries, the Ohio River (at Markland Dam, Kentucky), the upper Missouri River (at Nebraska City, Nebraska) and the Arkansas River (near Van Buren, Arkansas). The measurements cover the period during the peak of the bomb-produced tritium transient when tritium concentrations in precipitation rose above natural levels by two to three orders of magnitude. Using measurements of tritium concentrations in precipitation, a tritium input function...
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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....


    map background search result map search result map Radon data and time-lapse photos collected outside the Pinenut uranium mine, Arizona, 2015-16 Science Data Catalog submission - USGS:366411b4-98bc-41f7-876b-778f91aff6b6 Radon data and time-lapse photos collected outside the Pinenut uranium mine, Arizona, 2015-16 Science Data Catalog submission - USGS:366411b4-98bc-41f7-876b-778f91aff6b6