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在生活中,人们常用旧报刊书页包装食品,这是很不好的。报纸、杂志和废旧图书经转辗传阅,接触范围很广,而且放置的时间长,各种病菌和病毒的污染严重。有人进行过化验,发现有的旧报刊上带有结核、伤寒、白喉、肝炎等二十多种病毒和病菌。此外,报刊、图书是用油墨印刷的,多数油墨又是以苯类化合物作原料制成的。苯、甲苯及二甲苯等都是有毒物质。据化验,平均每一公斤旧报纸,约含有一毫克多氯联苯,对人体有害。
In life, people often use the old newspaper pages packaged food, which is very bad. Newspapers, magazines and obsolete books have been circulated and circulated, with a wide range of exposure and long shelf life, with serious contamination by various germs and viruses. Some people conducted tests and found that some old newspapers and newspapers with tuberculosis, typhoid, diphtheria, hepatitis and other 20 kinds of viruses and germs. In addition, newspapers, books are printed with ink, most of the ink is made of benzene compounds as raw materials. Benzene, toluene and xylene are all toxic substances. According to tests, an average of one milligram of PCBs per kilogram of old newspapers is harmful to the human body.