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Tetrachloroethylene Toxicity EPA Risk Assessment
February 13, 2012 11:04 AM - Editor, ENN
Tetrachloroethylene, also known under its systematic name tetrachloroethene and many other names, is a chlorocarbon. It is a colorless liquid widely used for dry cleaning of fabrics and is sometimes called "dry-cleaning fluid". It has a sweet odor detectable by most people at a concentration of 1 part per million (1 ppm). It is also used in the cleaning of metal machinery and to manufacture some consumer products and other chemicals. Confirming longstanding scientific understanding and research, the final EPA risk assessment characterizes this material as a likely human carcinogen. The assessment provides estimates for both cancer and non-cancer effects associated with exposure to it over a lifetime.
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If you’ve ever been to the doctor, you surely are familiar with the questionnaires given to you when you first arrive – those which ask about your medical history, medications, and any current health issues. Some questionnaires even ask you to rate your own health, a seemingly subjective question. Researchers at The University of Zurich have noted [...]
Who knew that social media could be beneficial for adolescents? According to a new study
by University of Haifa, Israel researchers, teenagers who blog to express their feelings and emotions is therapeutic for children ages 13-17. Psychology professors Meyran Boniel-Nissim and Azy Barak have found that a teenager writing a publicly-viewed blog on the internet is [...]
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