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Use the excerpt and any needed additional research to answer the following questions. • From what sources are people most likely exposed to BPA? •What external factors, or conditions, affect the release of BPA from those sources? •How can people reduce their exposure to BPA? •Should BPA be kept out of products that people frequently use? Why or why not?

Use the excerpt and any needed additional research to answer the following questions. • From what sources are people most likely exposed to BPA? •What external factors, or conditions, affect the release of BPA from those sources? •How can people reduce their exposure to BPA? •Should BPA be kept out of products that people frequently use? Why or why not?

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Use the excerpt and any needed additional research to answer the following questions. • From what sources are people most likely exposed to BPA? •What external factors, or conditions, affect the release of BPA from those sources? •How can people reduce their exposure to BPA? •Should BPA be kept out of products that people frequently use? Why or why not?
Bisphenol A (BPA) is a chemical that most Americans have been exposed to. Read an excerpt about BPA from the National Institute of Environmental Sciences below. Bisphenol A (BPA) Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics and epoxy resins.. Polycarbonate plastics have many applications including use in some food and drink packaging, e.g., water and infant bottles, compact discs, impact-resistant safety equipment, and medical devices. Epoxy resins are used as lacquers to coat metal products such as food cans, bottle tops, and water supply pipes. Some dental sealants and composites may also contribute to BPA exposure.. The primary source of exposure to BPA for most people is through the diet. While air, dust, and water are other possible sources of exposure, BPA in food and beverages accounts for the majority of daily human exposure. Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles. The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container. BPA can also be found in breast milk... One reason people may be concerned about BPA is because human exposure to BPA is widespread. The 2003- 2004 National Health and Nutrition Examination Survey (NHANES III) conducted by the Centers for Disease Control and Prevention (CDC) found detectable levels of BPA in 93% of 2517 urine samples from people six years and older. The CDC NHANES data are considered representative of exposures in the United States. Another reason for concern, especially for parents, may be because some animal studies report effects in fetuses and newborns exposed to BPA.
Transcribed Image Text:Bisphenol A (BPA) is a chemical that most Americans have been exposed to. Read an excerpt about BPA from the National Institute of Environmental Sciences below. Bisphenol A (BPA) Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics and epoxy resins.. Polycarbonate plastics have many applications including use in some food and drink packaging, e.g., water and infant bottles, compact discs, impact-resistant safety equipment, and medical devices. Epoxy resins are used as lacquers to coat metal products such as food cans, bottle tops, and water supply pipes. Some dental sealants and composites may also contribute to BPA exposure.. The primary source of exposure to BPA for most people is through the diet. While air, dust, and water are other possible sources of exposure, BPA in food and beverages accounts for the majority of daily human exposure. Bisphenol A can leach into food from the protective internal epoxy resin coatings of canned foods and from consumer products such as polycarbonate tableware, food storage containers, water bottles, and baby bottles. The degree to which BPA leaches from polycarbonate bottles into liquid may depend more on the temperature of the liquid or bottle, than the age of the container. BPA can also be found in breast milk... One reason people may be concerned about BPA is because human exposure to BPA is widespread. The 2003- 2004 National Health and Nutrition Examination Survey (NHANES III) conducted by the Centers for Disease Control and Prevention (CDC) found detectable levels of BPA in 93% of 2517 urine samples from people six years and older. The CDC NHANES data are considered representative of exposures in the United States. Another reason for concern, especially for parents, may be because some animal studies report effects in fetuses and newborns exposed to BPA.
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