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Arsenic in the Nellis Dunes/Apex dust

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Old 01-29-2011, 03:29 AM   #1
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Arsenic in the Nellis Dunes/Apex dust

http://www.blm.gov/nv/st/en/fo/lvfo.html

http://www.lvrj.com/news/blm-study-r...114766599.html

http://www.ktnv.com/story/13922309/d...els-of-arsenic

"While awaiting the Health Risk Assessment results (3yrs), signs will be posted at NDRA and information will be posted on the BLM's website. The dust study and Health Risk Assessment results will be incorporated into the revision of the BLM's Las Vegas Field Office Resource Management Plan which is expected to be available for public comment in summer 2011 and the Las Vegas Field Office Recreation Area Management Plan in which public scoping is anticipated in late January.
Key results of the dust study include the following findings:
  • Nearly all dust samples taken in the area contain palygorskite Ė a mineral with many of the same characteristics as asbestos. Minerals with these characteristics are called "asbestiform." Palygorskite, like asbestos, is naturally occurring; however, unlike asbestos, it is not regulated.
  • The concentrations of naturally occurring arsenic in soil samples at NDRA are substantially higher (3.49 to 83.02 ppm) than soils elsewhere in the United States (3.6 to 8.8 ppm.) Currently there are no standards in the United States for arsenic in recreational settings.
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