POPS

POPs are abbreviations of English (Persistent Organic Pollutants) and Chinese name is "Persistent Organic Pollutants". POPs are a kind of natural or synthetic organic pollutants that have long-term residual, bioaccumulative, semi volatile and high toxicity, and can be transported over a long distance through various environmental media (air, water, biology, etc.) and are seriously harmful to human health and the environment: According to the definition of POPs, internationally recognized POPs have the following four important characteristics: 1. It can exist permanently in the environment. As POPs have high resistance to biodegradation, photolysis and chemical decomposition, they are difficult to be decomposed once they are discharged into the environment. 2. It can accumulate in the food chain and affect organisms with higher nutritional levels. Due to the low water solubility and high fat solubility of POPs, POPs are enriched into the organism from the surrounding media and reach the toxic concentration through the biological amplification of the food chain. 3. It can reach remote and extremely low areas through long-distance migration. The semi volatility of POPs enables them to exist in the form of steam or adsorb on atmospheric particles, which is convenient for long-distance migration in the atmospheric environment. At the same time, this moderate volatility makes them not stay in the atmosphere permanently, and they can re settle on the earth. 4. At a certain concentration, it will cause harmful or toxic effects on the organisms exposed to the substance. Most POPs have "three carcinogenic (carcinogenic, teratogenic and mutagenic) effects". To judge whether a substance is POPs, a scientific judgment benchmark should be established,. On June 25, 2019, the European Commission issued a new Regulation (EU) 2019/1021 on Persistent Organic Pollutants (POPs), replacing the previous Regulation (EC) No 850/2004, which came into force on July 15, 2019. In comparison with (EC) No 850/2004 and (EU) 2019/10:21, two new entries, decabromodiphenyl ether and pentachlorophenol (PCP) and their salts and esters, were added to Part A of the list of prohibited substances in Annex I; So far, the list of banned substances in EU POPs regulations has been increased from 24 to 26, POPs regulations Common test substances: Short chain chlorinated paraffin: SCCP, limit requirements: substances or configurations ＜ 10000 ppm, articles ＜ 1500 ppm, main application: it is widely used in cables, and can also be used to make water pipes, floors, films, artificial leather, plastic products and daily necessities. It is mainly used as flame retardant. PFOS, limit requirements: substances or configurations ≤ 10 ppm, articles, semi-finished products or parts ＜ 1000 ppm, for textile materials, the content of coating materials should be ＜ 1ug/m2, mainly used for the production of textiles, leather products, furniture, carpets and other surface antifouling agents. Hexabromocyclododecane: HBCDD, limit requirement: 100 ppm, mainly used for polypropylene plastics and fibers, flame retardancy of polystyrene foam plastics, and polyester fabric barrier. For more information, please contact our professional team:

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