What is bisphenol and?
bisphenol A is an organic compound composed of two phenolic groups that are produced by condensation with acetone with carbolic acid. It is also known as 4,4'-dihydroxy-2,2.2-Diffenylpropan or simply BPA. Bisphenol A is used as a reactive monomer for protein polymerization that initiates a chemical process that leads to the formation of polymer chains. As such, bisphenol is produced in mass quantities for the primary purpose of producing polycarbonate plastics and epoxy resins.
polycarbonate plastics are used to produce various products, including lenses with glasses, glass and safety equipment resistant to body armor, medical and safety equipment, compact discs and plastic bottles. Epoxy resins are used for trim or coatings such as canned goods, plumbing work, plastic dishes, plastic food storage containers and bottles and lid closures. In the case of plastics, it is unlikely that items marked 1, 2, 4, 5 or 6 recycling would beThe code contained bisphenol A; Those who are marked 3 or 7 can be made with BPA, although this code does not mean they are certainly. This is due to concerns about the impact of bisphenol and on the environment and human health. Environmental studies show that this organic compound disrupts the absorption of nitrogen in certain plants, namely legumes such as beans. Several studies have also found that bisphenol levels and urban waste waters. In addition, it was found that bisphenol and are harmful to marine life.
In studies using animal models, it has exposed a low level of bisphenol exposure and to observe several adverse effects on health. These effects include changes in breast tissue, early advent of puberty, decrease in testosterone production and, among other things, increase the weight of the prostate. These studies, however, included injection of high levels of bisphenol A and may not precisely represent normal exposure.
In terms of the impact of long -term exposure to bisphenol and on humans, centers for control and prevention of diseases found that nearly 95 percent of Americans aged six years are low levels of bisphenol A, which can be detected in urine. Scientists believe that bisphenol and can enter the body with a regular consumption of food and beverages wrapped in materials treated with substance. In addition to consuming canned goods and drinking from plastic bottles, the exhibition can also come from drinking some wines or even with teeth sealing.
Special concern is the possibility that bisphenol and can leach from the products of treated BPA, including plastic water bottles and infant bottles. However, the exposure may also occur when air pollution and absorption through the skin. While more research is needed, preliminary studies on people suggest that a high level of bisphenol and in the body is associated with an increased occurrence of diabetes and heart disease. It is also known that this compound is an endocrine disruptor due to ownership propertySimilar estrogen.
According to the National Institute of Environmental Sciences, consumers can be able to reduce bisphenol exposure by selecting glass containers for plastic. In addition, the placement of hot liquids in plastic bottles or cleaning them in the dishwasher should be avoided because the temperature seems to affect bisphenol release.