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Phthalate is a kind of chemical which can soften and cause serious harm to human body

Polycyclic aromatic hydrocarbons (PAHs) are volatile hydrocarbons produced by incomplete combustion of coal, petroleum, wood, tobacco, organic polymers and other organic compounds. They are important environmental and food pollutants.

Lead is a kind of toxic heavy metal which is harmful to human body. Therefore, lead and its compounds will cause harm to nervous system, hematopoiesis system, digestive system, kidney system, cardiovascular system and endocrine system after entering the body. If the content is too high, lead poisoning will be caused.

Chlorophenols are chlorinated substitutes of phenol, including pentachlorophenol (PCP), tetrachlorophenol (tecp), trichlorophenol (trcp), dichlorophenol (DCP), monochlorophenol (MCP) and all isomers of o-phenylphenol.

Organotin compounds are metal organic compounds formed by the direct combination of tin and carbon elements. Their main uses include catalyst (dibutyltin, stannous octanoate), stabilizer (such as dimethyltin, Dioctyltin, tetraphenyltin), agricultural insecticide, bactericide (such as dibutyltin, tributyltin, triphenyltin) and coating and mould inhibitor of daily necessities.

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