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1、生活中的化学选修论文 - 副本（Chemistry elective papers in life - a copy）Chemistry in lifepaperName: Hu XinStudent ID: 20081573Major: Software EngineeringWatch out for chemical carcinogens in your lifeKeywords: carcinogenesis, additives, smoking, cosmetics, preventionChemistry is a basic natural science. It is of
2、 great significance to human development and has a lot to do with life. As we all know, things around us are made up of many chemical elements, including many of the elements that are indispensable to our bodies. According to some chemical knowledge and phenomena, it can also help people to do some
3、useful things in common. Clothing, food, shelter, transportation and use are all around the world. With the development of productive forces and the progress of science and technology, chemistry has become more and more closely related to peoples life. Chemistry has played an invaluable role in the
4、production and life of mankind. However, any transaction has two sides, and brings us some convenience, but it also brings us some potential harm. All kinds of chemical industry wastewater pollution, waste smoke not only caused environmental pollution to the nature, also do harm to peoples health, a
5、nd some is caused by our normal eating and drinking and other human body damage, which is the largest number of carcinogenic chemicals, and some of these is that we can avoid the. The following are the most commonAs the saying goes, A close mouth catches no flies., indeed in now the most basic food
6、will affect human health, according to a survey, in cancer patients in our country, about the occurrence of 35%-50% is related with food, food processing and so on, which is mainly due to a variety of food additives in food by.Nowadays, additives are a kind of chemical synthesis or natural substance
7、 which can improve the quality of food, prolong the period of food preservation, facilitate the processing of food and increase the nutritional content of food. For example, acidity regulator, color agent, enzyme preparation, flavoring agent, anti caking agent, defoaming agent, antioxidant, bleachin
8、g agent, leavening agent, preservative, sweetener and thickener, spices and so on, for example, in the past had been used as a margarine coloring cream yellow, and that of every hue the various additives, causing a lot of potential harm to our body, of course, if in strict accordance with the nation
9、al standards to add more, the problem is small, but unluckily so some unscrupulous businessmen, mercenary, regardless of consumer safety, add some additives which leads to chaos, many consumers do not understand the physical harm. One of the biggest events was the recent melamine milk powder scandal
10、. And this event was known to every family the Sanlu company, although this is not carcinogenic, but the consequences are also so serious, again a few years ago the tonyred event, originally just a normal chemical dye, and the dealer profit only know the unreasonable consumer fraud,Illegally added t
11、o the food, the researchers found that they could cause DNA mutations in human liver cells that have certain carcinogenic properties that, although proved to be in the organism, do not quickly cause disease. Exposure to substances that cause cancer does not necessarily mean that cancer will occur, b
12、ut it is also dangerous. Today, almost everything on the shelf does not contain additives. Eat delicious ham, instant noodles, still feel that delicious, but is the usual our favorite, feel home than those homely fare dont know how much delicious food, snacks are containing add up, preservatives, pr
13、eservatives and other spices, especially nitrate chromogenic agent in very easy, into nitrosamines strong intestinal gastric cancer, efficient and safe preservative sorbic also recently FAO and who recommended acid is widely used, widely used in food, beverages, tobacco, pesticides, cosmetics and ot
14、her industries, although it is considered a good preservative, but once sorbic acid the food added to exceed the standard seriously, consumers for long-term use, to a certain extent, harm the body kidney, liver health, and this same aberration and carcinogenesis.Of course, as long as all kinds of ad
15、ditives are strictly in accordance with the relevant national standards were added, various food or safety, but also in life we should try to eat less obvious will add many food additives.Another kind of carcinogenic risks, it is also very common, cigarettes, much research has shown that the inciden
16、ce of lung cancer in smokers than the average high 2025 times, and the amount of smoking and smoking is related to the length of time. Smoking has a history of several hundred years, smoking is not only harmful to your body, and cause harm to others, smoking is the results of a study in a foreign as everyone knows the psychological research institutions show that the intellectual performance smokers than non-smokers decreased 10.6%. Dif
