Why not seize a pair of phenol A to put

Why not seize a pair of phenol A to put
It decides to forbid producing the plastic feeding bottle containing pair of phenol A from March 1 this year that China's disease accuses of being poisoned in the luxuriant cypress European Union of the man, researcher of control centre in the centre, forbade any plastic feeding bottle containing pair of phenol A to be imported to member states from June. Ministry of Public Health of our country shows too recently, will consider feeding bottles of infant and pre-school children select materials and forbid the question of a pair of phenol A. Pair of phenol A has another name called two phenol base propane, is abbreviated as BPA, make and gather plastic additive such as carbonic acid ester, epoxy resin and unsaturated polyester resin. It is used mainly in the article for daily use to gather carbonic acid ester, such as baby's water bottle; Plastics such as epoxy resin and unsaturated polyester resin,etc. are used mainly in food pot inside lining, laser disc, glasses one, dentistry encapsulant etc.. The fierce Canadian investigation of poisonous dispute finds, a pair of phenol A or his supersession product is positive in 91% of the people's urine in the crowd, the average is 1.16�� g/L, among them the 6~11 -year-old children's group has the highest number value. The detection data of U.S.A. are similar to it, phenol A positive rate of the urine double exceeds 92% of the crowds. So, the security of a pair of phenol A receives the public concern naturally. The structure of pair of phenol A is similar to estrogen, can produce weak estrogen function after transformation. The academia has had deep experiment that is studied to it, but the result of study of these experiment is far from each other - -Dispute one: Does pair of phenol A have so serious toxicity? Investigate, a pair of phenol A can enter embryo's body through the placenta in the urine. Somebody employs advanced instrument and method to do deeper research, think it is combined in cells with lysosome of cell that a pair of phenol A is entered, can even observe that there is sign which combine DNA while employing the electronic probe. But other research finds, pair is very short in phenol half-life in the human body of A, it is a pair of phenol, 4 - hydroxy a pair of phenol, 4 - phenol methanol,etc. to metabolize quickly, and all lose estrogen -like structure, have just lost activity of weak estrogen. Dispute two: " weak interaction theory " Exist? In recent years, the scholar proposes the low dosage is exposed to endangering the theory from the viewpoint of the endocrine with different receptors, that is to say low dose of material can cause greater response. The researcher finds, drip a pair of phenol A which enters the extremely low dosage in the palace in different period of pregnancy period of rabbit, can make the intersection of rabbit and future generation grow, obviously influence. Research reveals, it is different to exposed to the way, receptors are different, the response appearing is different too. And the opposition person says and repeats the experiment and can not obtain the same result. Dispute three: Relate to the fact that chronic disease have illness coming on? Study risk assessment and need complicated epidemiology to investigate through the crowd, the existing epidemiology survey report related to impact on secretion in several kinds of persons is unsatisfactory at present. The investigation of the urine sample reveals as a report of U.S.A. carries on to nearly 1500 adults, pairs of the intersection of phenol and A getting high to compared with control group, suffer from cardiovascular risk of disease, will increase twice in level in the urine, suffering from the risk of the 2 type diabetes will double too. And the intersection of U.S.A. and national the intersection of hygiene and research institute draw different conclusions in the an experiment that adipose tissue go on in people before this. It is justified too to buy the feeding bottle and see digital Ministry of Public Health of our country of bottom of the bottle and plan to forbid using a pair of phenol A in gathering carbonic acid ester feeding bottle. There is precedent abroad, Norway implements first, Canada follows closely, U.S.A. FDA did this regulation in 2008 too. What the public wanted to come to understand is, it is only baby food container that will forbid in the future, the other containers touched on only lightly the food, such as food pot inside lining, food bottle lid sealing washer,etc.. A pair of phenol ATDA (the tolerating amount at most of every day) which U.S.A. FDA stipulates It is 0.05mg/kg, have not revised so far. That is to say pairs of the intersection of phenol and A can take a bit, one kilogram of persons, wipe out stock 3- 4mg, allow every day. Although thing truth is far from expounding, one point is clear, namely the attitude employed according to the standard is scientific. The standard stipulates phenol dissolves the appearing amount and is not greater than 0.05mg/kg in carbonic acid ester resin and shaping product. That is to say, have taken a pair of phenol A that a kilogram of food preserved with this container took in, but take in 1/60- 1/70 that can allow quantity. It means a pair of phenol A is not so terrible either, needn't be excessively alarmed. If there are children to use the feeding bottle in the family, would rather adopt the letter it has, it is incredible, his principle that does not have. People are except that see the label composition to prove while buying the feeding bottle, it depends on the bottom of the bottle, there is a triangular symbol with figure of a piece of the middle there, the middle figure is 7 or 58, represent that may contain a pair of phenol A in this bottle of plastics, had better not buy, or use the glass feeding bottle simply.

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