What is the connection between dioxins and Furany?

Dioxins and Furans belong to a chemical family with similar structures. These chemicals include polychlorinated biphenyls (PCB), polyxins Dibenzo (PCDD) and polychlorinated dibenzo Furans (PCDF). Although both dioxins and furanes are unintended by -products for pesticides and when whitening paper, they are a highly toxic family of chemicals. Dioxins are considered to be the most toxic chemicals that have ever produced, and Furany is about one tenth as dangerous. It is an ecologically persistent chemicals that accumulate in oily animal tissue, and vectors for human exposure include the supply of food and contamination of air and water. Other common sources of chemicals include, among other things, burning of medical waste, cement furnaces and wood burning. Two industrial processes that are removable for a large proportion of dioxins and furan production include the use of chlorine chemicals to whiten paper and wood pulp and combustion of materials that contain plastic polyvinylchloRidu (PVC).

Approximately 95% of air pollution for dioxins and Furans comes from the combustion of chlorinated products. The largest source of them is the burning of municipal waste. In the past and the combustion of materials containing them in waste, dioxins and furans present at temperatures between 492 ° and 842 ° Fahrenheit (250 ° Celsius) and burning of the materials containing them in waste) may increase.

When using PCB chemicals that contained these compounds, they were stopped in 1977, still remain in the environment. Since 2011, concentrations around the world have been high enough to have been shown that 10% of the normal level of chemical exposure has caused adverse health effects in humans and animals. It is particularly concerned about their presence in food supply, which is a primary exposure method. They are found in most meat products, dairy products and eggs. Tests have shownthat the consumption of one beef hamburger from the American fast food chain contains 250 times what is considered an acceptable daily exposure to chemicals.

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areas where dioxins and furans had extensive harmful health effects belong in Vietnam because of their presence in Orange Defoliant used in the Vietnam War and at the site of environmental cleaning, such as Times Beach, Missouri and Love Canal in New York. Rice oil used on Taiwan and Japan as a method of cooking with high temperature increases the level of furan where PCB is present. Fish are the main exhibition route for chemicals and the level of evaluation of dioxins and furan studies from 2001 present in breast milk given in Vietnam with the highest concentrations and Japan on the Seznam.

Exposure of dioxins Furans in the environment is a reason for concern around the world. The study of their environmental presence was carried out by drilling nuclei to lake bears in the US and Switzerland. The deeper selfDro, thus back in time, can be traced to the sediment, and it was found that dioxins were almost undetectable in the environment in the 40th of the 20th century. In conclusion, the burning of chlorinated aromatic materials as a result of industrial processes since then has been the main source of these contamination.