漂亮餐具毒在嘴边

liuzhiyun

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2003-12-22
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水晶制品是一种颇具威胁的铅污染源,水晶制品中的氧化铅含量高达20%至30%,用它来盛水,一般还不至于引起铅中毒;但若用来盛酒,酒会将水晶制品中的铅溶解出来并溶于酒;酒对铅元素的溶解量与时间成正比。实验表明:用水晶容器盛酒,一小时后,酒中的含铅量升高一倍。由于水晶制品做工精细,外表晶莹剔透,故有“美丽的毒品”之称。
许多塑料餐具的表层图案中的铅、镉等金属元素会对人体造成伤害。一般的塑料制品表面有一层保护膜,这层膜一旦被硬器划破,有害物质就会释放出来。因此消费者应尽量选择没有装饰图案、无色无味、表面光洁、手感结实的塑料餐具。消费者可挑选商品上标注PE(聚乙烯)和PP(聚丙烯)字样的塑料制品,比较安全。
不锈钢中的微量金属元素同样会在人体中慢慢累积到一定量危害人体健康,镍是一种致癌物。不锈钢餐具上印有“13至0”、“18至0”、“18至8”三种代号,代号前面的数字表示含铬量,铬是使产品“不锈”的材料;后面的数字则代表镍含量,产品的镍含量越高,耐腐性越好。为防止镍、铬等重金属危害人体,国家对其溶出量规定有相关的标准,所以,只要是正规产品均可放心使用。但不锈钢餐具不要长时间盛放强酸或强碱性食品,防止铬、镍等金属元素溶出;一旦发现不锈钢餐具变形或者表层破损,应及时更换。
铝制餐具轻巧耐用,但铝在人体内积累过多,可引起智力下降,记忆力衰退,导致老年性痴呆;铝可在神经细胞中大量滞留引起神经症状。如用铁锅配铝铲、铝勺,则会对人体带来更大危害。这不仅因为两者易发生摩擦,还由于铝和铁是两种化学活性不同的金属,当它们以食物作为电解液时,铝和铁能形成一个化学电池。电池作用的结果,使铝离子进入食物,并随食物进入人体,使人体含铝量增加。
 
Lead has traditionally been added to fine crystal to increase its brilliance. Some people also find its added weight pleasant in their hands. However, lead is extremely poisonous. The amount absorbed by your body if you use it in utensils for food will depend on the type of food (mainly, its acidity), the time it is in contact with the lead, the temperature, and the form and distribution of the lead in the utensils. Unless you're in the habit of drinking boiling wine for several hours every day, or you're pretty confident that you're going to live for a million years, I doubt than you'll absorb enough lead from your glassware in one lifetime to have any effect at all. However, it's your decision. To see an article by a government agency which seems to tend toward the opposite opinion, click here
 
那要是平底锅那层黑黑的被铁丝刷刷洗掉了,露出不锈钢颜色的东西,那是不是就要换掉了??
 
呀??????????????????
 
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