Traditional Culture Encyclopedia - Traditional festivals - Is the air pollution in the production workshop of pvc plastic products factory environmentally friendly?
Is the air pollution in the production workshop of pvc plastic products factory environmentally friendly?
Plastic is a polymer compound. Plastic products are made of synthetic resin as the main raw material, adding appropriate additives such as plasticizer, stabilizer and antioxidant, and processed under certain plasticizing selection. At present, the allowed food plastics in China are polyethylene, polypropylene, polyvinyl chloride, polycarbonate (PC), polyethylene terephthalate (PET) and so on. These plastics have strict production process requirements during processing, and the contents of free monomers and various additives are strictly regulated by the state. Plastic products produced according to national standards are harmless to human body. However, in order to maximize the benefits of products, some manufacturers use polyethylene, polypropylene and polyvinyl chloride to recycle plastic waste at the expense of people's health. A few "black-hearted" manufacturers use the wiredrawing materials, waste VCD discs and recovered medical wastes (used disposable infusion sets, syringes and blood transfusions) in the clothing industry as raw materials to produce plastic bags, mineral water buckets and water basins. These instruments contain a lot of toxic and harmful chemicals, and once the harmful substances migrate into food, they will do great harm to the human body. For example, after vinyl chloride monomer is absorbed by gastrointestinal tract, part of it is discharged through respiratory tract, and the other part is decomposed into ethanol and monochloroacetic acid. It can also be combined with deoxyribonucleic acid (DNA) in vivo. Toxic effects on nervous system, bones and liver can lead to human angiosarcoma. Formaldehyde is the protoplasm toxin of human cells. When animals ingest formaldehyde orally, hepatocyte necrosis and lymphocyte infiltration may occur. "Acetaldehyde" can damage human nerves, cause dizziness and dizziness, and even cause cancer in serious cases.
Protecting the environment is everyone's responsibility. Puwechat Tmall imported from the United States can effectively prevent smog.
Haze is harmful to human respiratory system and cardiovascular system.
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