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- 1542564
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- 2023-4-19
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- 1970-1-1
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纳米科技,有很多种类形式,很难管理,因为种类太多了,结构有点区别,功能差别也很大。所以EPA很难管理。纳米材料有很多用处,但是实验表明也有很大风险,并不确定安全,甚至有可能带来伤害和污染。讲了两个实验。各国对纳米的管理也规范也不健全,不统一。
P1 nanotech
- Many uses>>great promise & alarming possibilities
- Safety level >>reason: structures & properties, means of entering body
P2 create & use
- Many ways >> fullerene>> different characteristics
○ Some anti-ox>>treating cells
○ Oxidants>> damage
○ Cleaning environment >>pollutants
P3 alarming research
- Carbon nanotubes//lungs
○ Immune response>>scar tissue
- Carbon nanotube soot mixture
○ Granulomas & lesions >> fatal
- Research in vacuum >> not enough>>should be under real world conditions
P4 Cost & bene >> cooperation among gov & buz>>success
- US-underfunding
- TSCA-insufficient
- Not all nations create regulations
- Product-only minimal exposure>>could turn public opinion against
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