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                                           Ken Lee

Tuesday, June 9, 2009

Reusing Plastic Bottles Causes Cancer

Many are unaware of poisoning caused by re-using plastic bottles. Some of you may be in the habit of using and re-using your disposable mineral water bottles (eg. Evian, Aq_a, Ice M__ntain, Bor_eo, Der_k, etc), keeping them in your car or at work. Not a good idea. In a nutshell, the plastic (called polyethylene terephthalate or PET) used in these bottles contains a potentially carcinogenic element (something called diethylhydroxylamine or DEHA).

The bottles are safe for one-time use only; if you must keep them longer, it should be or no more than a few days, a week max, and keep them away from heat as well. Repeated washing and rinsing can cause the plastic to break down and the carcinogens (cancer- causing chemical agents)can leach into the water that YOU are drinking. Better to invest in water bottles that are really meant for multiple uses. This is not something we should be scrimping on. Those of you with family - please advise them, especially for their children's sake."

http://www.hoax-slayer.com/images/reusing-plastic-bottle.jpg









相关专家指出,一般矿泉水瓶用PET(聚对苯二甲酸乙二醇酯)塑料制成,含有潜在致癌物乙基己基胺,瓶子用一次是安全的,如果重复使用,就有致癌危险。每个矿泉水瓶底部都有一个带箭头的三角形标志,里面的数字愈大愈安全,假若数字在5或以上,就可以循环再用;小于5甚至没有数字的,请勿再利用或加热使用。一般矿泉水瓶子底部标志为1,因此不能放在汽车内晒太阳或重复使用。
  据材料学专家分析,PET在合成时需要添加催化剂,而在高温、光照等环境中,一些微量的催化剂会被分解出来,对人体有一定影响,但具体多少含量足以致癌,目前还没有定量的分析。PET不耐高温,温度超过70℃就会变形,如果矿泉水瓶重复使用盛装酒、油等物质,更容易把内部的有害物质溶出。因此,提醒消费者使用塑料瓶时应注意,普通水瓶与耐热塑料瓶的差别。

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