过去 ,人们用旧报纸包裹食品 ,还以是物尽其用 ,习以为常 ,结果发生了几次恶性中毒事件。这是因为旧报纸上的油墨中含有多氯联苯 ,它会污染食品而使人中毒。人们认识到旧报纸包裹食品有害 ,现在一些食品店、饮食店改用白纸包裹食品。其实这样做仍不卫生 ,因为制作白纸必须加荧 In the past, people use old newspapers wrapped food, but also make the best use, accustomed to, resulting in several vicious poisoning. This is because the old newspaper contains polychlorinated biphenyls (PCBs), which can contaminate food and poison people. People recognize that the old newspaper wrapped food harmful, and now some food stores, restaurants instead of white paper wrapped food. In fact, this is still not hygienic, because the production of white paper must add fluorescent