Thursday, September 23, 2010

BPA: Cited Annotation

Grady, Denise. "In Feast of Data on BPA Plastic, No Final Answer." New York Times. 6 Sept. 2010. Web. 20 Sept. 2010. <http://www.nytimes.com/2010/09/07/science/07bpa.html>.
                
        Denise Grady describes BPA (bisphenol-A) in a negative way and how it can have bad effects on children and babies. BPA is found in a lot of plastic products such as water bottles and baby bottles, and after many people found out that it was harmful, it will not be sold by its manufacturer, Sunoco, anymore. This chemical does not only affect children. It effects anyone who is exposed by it. It can cause serious illnesses such as cancer, infertility and behavior problems and was also recently linked to childhood obesity. The European Union has a rule called "precautionary principle" that states that products should not be used until they are proven harmless. The United States has an opposite view and thinks that it would be fine to use BPA and other products, as long as it hasn't been harmful yet. 
Scientists are puzzled at this point because of all the different tests and ways that this chemical has been experimented with. BPA may also have to do with breast cancer, uterine cancer, obesity, behavior, the immune system and its association with estrogen and it can cause many different effects. Tests had been done with rats and giving them lower levels of BPA caused different and weirder effects than a higher dose would. Scientists all found different effects in there own fields of science and University’s have also done testing. At this point, Scientists are just trying to figure out exactly what it does and the different ways that it can effect us. 

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