Chemicals

Chemical Industry Seeks Further Delays in EPA Dioxin Risk Study

"In light of just-passed federal legislation, a chemical industry group is asking the Environmental Protection Agency to change course on its assessment of the most potent form of dioxin, a pollutant that causes cancer and is linked to reproductive problems. Such a move by the agency could drag out completion of the assessment, which has been underway for 20 years."

Source: C&EN, 12/23/2011

"Researchers Assess Effects of a World Awash in Nitrogen"

"Humans are having an effect on Earth's ecosystems but it's not just the depletion of resources and the warming of the planet we are causing. Now you can add an over-abundance of nitrogen as another "footprint" humans are leaving behind. The only question is how large of an impact will be felt. In a Perspectives piece in the current issue of Science, Arizona State University researcher James Elser outlines some recent findings on the increasing abundance of available nitrogen on Earth."

Source: SPX, 12/21/2011

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