Saturday, November 10, 2012

Nation of Change   Saturday, November 10, 2012
Fracking for gas not only uses toxic chemicals that can contaminate drinking and groundwater -- it also releases substantial quantities of radioactive poison from the ground that will remain hot and deadly for thousands of years.
Issuing a report yesterday exposing major radioactive impacts of hydraulic fracturing­known as fracking -- was Grassroots Environmental Education, an organization in New York, where extensive fracking is proposed.
The Marcellus Shale region which covers much of upstate New York is seen as loaded with gas that can be released through the fracking process. It involves injecting fluid and chemicals under high pressure to fracture shale formations and release the gas captured in them.
But also released, notes the report, is radioactive material in the shale­including Radium-226 with a half-life of 1,600 years. A half-life is how long it takes for a radioactive substance to lose half its radiation. It is multiplied by between 10 and 20 to determine the “hazardous lifetime” of a radioactive material, how long it takes for it to lose its radioactivity. Thus Radium-226 remains radioactive for between 16,000 and 32,000 years.
“Horizontal hydrofracking for natural gas in the Marcellus Shale region of New York State has the potential to result in the production of large amounts of waste materials containing Radium-226 and Radium-228 in both solid and liquid mediums,” states the report by E. Ivan White.  For 30 years he was a staff scientist for the Congressionally-chartered National Council on Radiation Protection.
“Importantly, the type of radioactive material found in the Marcellus Shale and brought to the surface by horizontal hydrofracking is the type that is particularly long-lived, and could easily bio-accumulate over time and deliver a dangerous radiation dose to potentially millions of people long after the drilling is over,” the report goes on.
“Radioactivity in the environment, especially the presence of the known carcinogen radium, poses a potentially significant threat to human health,” it says. “Therefore, any activity that has the potential to increase that exposure must be carefully analyzed prior to its commencement so that the risks can be fully understood.”