It is apt to become the poisonous source that disinfectant is improperlied use

It is apt to become the poisonous source that disinfectant is improperlied use
It is apt to become the poisonous source that disinfectant is improperlied use
Capital University of Medical Sciences poison medical the intersection of department and the intersection of phoenix and general term for paulownia, phoenix tree and tung tree Hao water essential key element of human survival, the toothpaste is the necessities of the daily life. And the media successively reported recently: Bromate exceed standard, present Triclosan of carcinogenic pharmaceutical in some toothpaste in some draught drinking water. How should people think about these reports correctly? It is apt to produce bromate of harmful substance to drink the water that ozone sterilizes the drinking water the hygiene is to concern mankind's safe major issue. In order to eliminate the pathogenic microorganism in drinking the water, the countries all over the world use the disinfecting method of drinking water of chlorine extensively in recent years. Chlorine deal with water quantity loud, with low costs, and have lasting disinfective actions. In 1974, Rook and Beller,et al. reported, can produce harmful substances such as chloroform,etc. in the course to sterilize to drink with water chlorination, people begin to pay close attention to the water body chlorine disinfecting by-product. In the course of looking for and substituting disinfectant of chlorine, people find ozone is a kind of strong oxidant, can oxidize and decompose many kinds of organic matter in water, kill microorganisms such as various germ, virus and protozoacide,etc. rapidly. Because the disinfecting efficiency of ozone, has already been employed for more than 20 years extensively in Europe, bottle (barrel) of our country Holding drinking water enterprises begins to use ozone to sterilize technology too. But ozone has short boards to sterilize the drinking water, the biggest problem is to produce bromate of potential harmful substance easily. Triclosan sterilizes the products supersession product of daily chemical industry to cause and does not endanger the literature report small, since the seventies of the 20th century, Triclosan has already been used in toilet soap, mouthwash, toothpaste, cosmetics, articles for washing, hair to finalize the design extensively as disinfectant of sterilization personal nursing products such as water,etc., also used in the disinfection of the medical apparatus, and the disinfection, antibacterial to deal withing before the fabrics are dispatched from the factory. Produce about 350 tons of Triclosan in Europe as the garniture of the personal nursing product every year. Because the application of Triclosan is becoming more extensive, a lot of countries begin to pay close attention to its environmental problem brought. There are literature reports, in the world, the existence that even can measure Triclosan in the human body in the water environment. The little mouse of Triclosan takes orally half the number fatal dose is probably 3800mg/kg, and the low poisonous substance quality, can decompose in the environment. But Triclosan is that chlorine takes the place of phenol types, its main danger comes from its product dioxins and chloroform of supersession. So in the toothpaste the intersection of daily chemical industry and products the intersection of Triclosan and possible derivative and danger that by product cause that exist form mode to be extremely similar drink, sterilize with water. It is verified that Triclosan and toxic function of bromate need to appraise medical research from the dosage - effect relation, actual danger of the by-product existing while drinking, sterilizing with water and Triclosan derivative, the obvious dosage - effect relation exists. The research has suggested, bromate has hereditary toxicity to experimental animal DNA and chromosome level under certain dosage condition, have a liking for, dye more the intersection of erythrocyte and little nuclear test as example with little the intersection of mouse and bone marrow, dye toxic quantity to increase progressively from 10mg/kg to 80mg/kg, the little mouse bone marrow has a liking for and dyes a little nuclear rate of erythrocyte more and shows a tendency to increase progressively too. The acute toxicity of chloroform is moderately toxic; Take in 126mg/kg chloroform to add up to for 10 days every day for the big mouse of gestation, observe fetus mouse's deformity; It causes the experiment dosage of hepatocarcinoma to be up to 138~477mg/kg that the big mouse takes in chloroform by the mouth. In 2008, the scientific worker of our country will report, measure the toothpaste of 16 brands, the content of Triclosan is lower than 0.3%, accord with the regulation of the cosmetics of our country with normal hygiene. Diverge from the dosage - effect ' Response) The relation goes to judge the biological security of a chemical, will fall into the insoluble strange circle. Standardizing ozone sterilization way controls a lot of countries of bromate content to make the standard time of water quality and already begin to pay close attention to sterilizing by-product bromates. It was 10�� g/L that World Health Organization revised bromate limit in " water standard of drinking water " from 25�� g/L in 2004. GB8537-2008 that our country issued and implemented from October 1 of 2009 " drinks the natural mineral water " to stipulate in the national standard, bromate content can't exceed 10�� g/L. China's disease accused of the scientific research personnel in the centre and delivered the research report in 2006, to determining from 12 kinds of bottled mineral water samples that are bought in the supermarket, the detection density of bromate is among 0.89-48.2�� g/L, in that bromate content exceeds 10�� g/L that World Health Organization stipulates in two kinds of bottled mineral water. State Bureau of Quality Testing announced the twin vase (the barrel) in the official site a few days ago Hold and drink the aquatic products quality surveillance sampling result, 18 kinds drink aquatic products and mount the black roll, among them 6 kinds of drinking water are exceeded standard by bromate of detection. Is bromate content reduced in the drinking water very difficult? It is 50cfu/ml that the country is correlated with the total number of the colony in the standard fixed mineral water. In order to reach this index, deal with water by such different wayses as the manufacturing enterprises of mineral water mostly adopt ozone to sterilize. If ozone sterilization method is improper, apt to cause the production of bromate, this has produced the contradiction among controlling the colony total number and controlling bromate content. Consumers and the rather troublesome question of manufacturing enterprise that bromate exceeds standard to make at present.


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