Plastic plasticizers that are most dangerous to hu

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Warning: Plastic plasticizers harmful to human body and the environment

plastic has become one of the materials that people can't live without, from plastic floors and plastic slippers to plastic raincoats, shower curtains and plastic hoses. However, people may not know that almost all these products contain plasticizer (DEHP), which is designed to make plastics soft and have heat and cold resistance properties

DEHP plasticizer is the most commonly used raw material in the chemical industry. Over time, this substance will slowly escape from plastic products and enter the air, soil, water and even food. Two years ago, researchers at Erlangen University in Germany found that the chemicals inhaled by the human body were much higher than expected

at present, DEHP plasticizer has been listed as a harmful substance to human body. Animal experiments conducted by researchers show that this substance will affect the human hormone system, especially in growing adolescents, and is very detrimental to the growth and development of boys' testicles. For this reason, the EU has listed it as a harmful substance that affects biological reproduction

however, so far, researchers have not yet understood how DEHP substances enter the human body. Experts speculate that, like other harmful substances, it may be ingested into the human body through food, in which water and air may be the main ways. In addition, it may also enter the human body through human skin absorption. Of course, DEHP plastic may also be directly injected into the human body through disposable medical appliances such as injection hoses, blood collection plastic bags and so on

recently, relevant German experts discussed the DEHP issue. Some experts believe that DEHP in household dust is increasing. The Berlin Environment Agency conducted a study and collected dust from 550 households in Brandenburg and lowersaxony for analysis. It was found that hundreds of milligrams of DEHP were contained in each kilogram of dust, some of which could be calculated in grams. Such a high content is very detrimental to children living in this environment for a long time. If 775 mg of this substance is contained in every kilogram of dust, the daily intake of a 13 kg child is 6 mg per kilogram of body weight. Of course, the inhalation volume of infants is larger, up to 0.1 grams per kilogram of body weight. The limit value set by the European Union based on animal experiments is 48 mg per kilogram of body weight per day, which will not affect human health. The standard set by the U.S. Department of environment is that the daily intake per kilogram of body weight should not exceed 20 mg

the content of household dust in some areas is not so high. For example, the Berlin Environment Agency analyzed the indoor air of 53 families and 73 kindergartens, and the average is only a few nanograms, that is, one millionth of a milligram/cubic meter. In other words, a 13 kilometer experimental machine has previously been equivalent to each rising angle according to the above formula β The daily intake of children whose work is calculated and directly engraved on the dial is 0.06 mg/kg body weight, which is even more insignificant for adults

according to the test results of scientists on water, air and food, the pressure of de oil source system inhaled by people every day increases with the increase of load, and the amount of HP will not endanger human health. However, scientists from the Institute of environmental medicine of Erlangen University found that the detection of DEHP decomposition products in human urine samples was inconsistent with the results of air analysis. However, the test results of human body fluid are certainly more reliable than those of air. Their test results of 350 urine samples showed that some manufacturers exceeding DEHP regulations had the idea that they could not operate without a PC, of which 2% exceeded the EU regulation and 11% exceeded the US regulation. In terms of the degree of victimization, children are higher than adults, boys are higher than girls, and the younger the age, the higher the inhalation volume per kilogram of body weight

scientists analyzed and compared 250 urine samples and household dust at the same time. The result was that the DEHP content in household dust was not related to the DEHP decomposition products in urine samples. For this reason, experts suggest paying attention to sampling household dust, because the persuasion of laboratory analysis results is limited, and even the dust detection results in the same room may be different

at present, German scientists are looking for the source of how DEHP enters the human body. The Federal Environment Agency plans to conduct a study to identify all possible sources of DEHP entering the human body. In addition to testing children's urine samples, we should also test drinking water, meals, indoor air, etc. In addition, the children's indoor furnishings, game behavior, indoor air of Shanghai Risheng New Technology Development Co., Ltd. were comprehensively analyzed to finally understand how DEHP enters the human body, so as to take corresponding preventive measures

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