Health hazards in the hottest plastic bag

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The general office of the State Council recently issued the notice on restricting the production and sale of plastic shopping bags to the people's governments of provinces, autonomous regions and municipalities directly under the central government, ministries and commissions under the State Council and institutions directly under the State Council. The notice points out that since june1,2008, the paid use system of plastic shopping bags has been implemented in all supermarkets, shopping malls, market fairs and other commodity retail places, and plastic shopping bags shall not be provided free of charge

plastic bags are easy to use and permeate every aspect of our daily life. While providing convenience, plastic bags not only affect the environment, but also endanger our health. Using plastic bags to hold food is likely to cause the body to ingest toxins

■ there are components harmful to health in the plastic bag

PVC: after the PVC monomer is absorbed through the gastrointestinal tract, part of it is discharged through the respiratory tract, and the other part is decomposed into ethanol and monochloroacetic acid. These substances will have toxic effects on the nervous system, bone and liver, leading to angiosarcoma. Ethanol can damage human nerves, cause dizziness, dizziness, and even cause cancer

lead stearate: lead stearate is a stabilizer for PVC plastic bags. At high temperature, lead stearate in plastic bags will dissolve into food. Lead stearate is very easy to precipitate, once it enters the human body, it will cause cumulative lead poisoning. These toxic substances are harmful to human health if eaten together with food

phthalate: phthalate, which should be called phthalate ester, is an additive in plastic process. It is mainly used to increase the flexibility of plastic products. A small amount of contact with people will be harmful. Phthalates are low toxic chemicals, which are harmful to the central nervous system and liver. The dosage of the plastic processing process will not be very large, and the phthalate can only be free of toxic monomers when heated at high temperature. Qualified plastic products will not cause harm to human body, and the harm mostly exists in the production process

compounding agent: in order to increase transparency and elasticity, a certain amount of plasticizer has been added to the vinyl preservative film (gb/t6343 ⑴ 995). After a long time of wrapping, the oil in the food is easy to dissolve the harmful substances in the fresh-keeping film, and will accelerate the release of the compound agent in the plasticizer into the food when heated. These compounds will destroy the human endocrine system, disrupt the normal hormone metabolism of the human body, and cause women's breast cancer, congenital defects of newborns, reduction of male sperm count, and even mental diseases

■ it is better not to use plastic bags to directly contain food. The application method for adjustable food products

medical experts point out that food, especially cooked food, is often easy to deteriorate after being packaged in plastic bags. People who eat such deteriorated food are easy to cause food poisoning symptoms such as vomiting and diarrhea. In addition, the plastic itself will release harmful gas. Due to the long-term accumulation in the sealed bag, the concentration will increase with the increase of sealing time. As a result, the two heads of state also jointly met that the food in the bag was polluted to varying degrees, which had a particularly prominent impact on the health and development of children

plastic bags are mostly recycled plastic products. Insiders pointed out that at present, the vast majority of plastic bags sold and used in the market are produced by local small enterprises or family workshops, and a considerable number of them are recycled plastic products. They use the waste plastics collected at the garbage station, industrial wastes and plastic wastes discarded by medical institutions for recycling and processing. Without disinfection, they privately process them into food bags and put them into the market. These recycled plastics contain serious bacteria and carcinogens that exceed the standard. Packaging cooked food directly imported with this kind of plastic products will have extremely serious consequences for the health of consumers

colored plastic bags are harmful. First of all, colored plastic bags contain organic dyes, such as various aromatic hydrocarbons. These chemicals will have a certain impact on human health. Secondly, colored plastic bags are mostly reprocessed from recycled waste plastic products. Due to the large amount of impurities in the recycled materials, manufacturers have to add pigments to cover them up. These chemicals do great harm to human body, and can not be used for direct food

frequent consumption of food in plastic bags can cause chronic poisoning. At present, many plastic bags are made of PVC. This kind of plastic bag containing PVC will release a variety of toxic substances in case of high temperature. When the temperature exceeds 50 ℃, the toxic components in the plastic bag will seep out, polluting the food and causing harm to the human body. When the temperature reaches 80 ℃, it will fuse with heat and release toxic substances. The temperature of hot (cooked) food is above 40 ℃, while the temperature of fried dough sticks and soybean milk just out of the pot is about 90 ℃. With the increase of temperature, the activities of toxic substances in plastic bags are intensified, which are easy to be absorbed by food and enter the stomach of the eater. Over time, it will cause chronic poisoning of the eater

■ how to select plastic bags that can hold food and can supply the medical equipment market to Lubrizol's pellethane and isoblast brand products

in order to effectively reduce the harm of using plastic products, we should choose and use them carefully when using plastic products such as food bags

it is better to bring your own tableware or standard plastic food bags when purchasing cooked food, snacks and other direct food. When purchasing standard plastic food bags, it is best to purchase products of well-known brands in regular shopping malls. The outer packaging bags of products should be marked with Chinese marks, indicating the factory name, address and executive standards. At the same time, the refrigerated and frozen food in the refrigerator should also use fresh-keeping film or fresh-keeping bags instead of ordinary plastic bags

it is forbidden to directly contain food in colored plastic bags

consumers can use the following methods to identify whether plastic food bags are harmful. Generally harmless plastic bags are milky white, translucent or colorless and transparent; It is flexible, feels lubricated when touching, and seems to have wax on the surface. It is flammable in case of open fire, and can continue to burn after leaving the fire without peculiar smell

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