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Silver nanoparticles are transformed by sewage treatment

Prior posts have noted a number of issues related to nanoparticles. Silver nanoparticles are used in hundreds of consumer products, including food storage containers, clothing, computer keyboards, cosmetics, pillows, cell phones, and medical appliances, because of their antimicrobial properties. Because...

EPA finalizes mountaintop mining guidance for Appalachia

EPA issued final guidance concerning environmental permitting regulations for mountaintop mining in Appalachia, maintaining the strengthened requirements it set out in the earlier interim guidance that was released on April 1, 2010. A summary of the guidance can be found at http://water.epa.gov/lawsregs...