-
(单词翻译:双击或拖选)
The Great Pacific Garbage Patch may be disappearing, and not in a good way. New research presented at the biannual1 meeting of the American Chemical Society reveals that polystyrene actually can break down in seawater.
Polystyrene is probably better known as Styrofoam, wads of which can be found on seashores and floating out to sea. Most scientists assumed it would linger forever but apparently2, when exposed to sunlight and rain and seawater, Styrofoam breaks down into its constituents3, most notably4 three chemicals known to cause cancer.
Japanese chemists found traces of these chemicals in samples of seawater from across the Pacific.
They also found bisphenol A, or BPA, which is another chemical that leaches5 from some plastics. BPA has been linked to human health impacts, such as heart disease, as well as developmental and reproductive disorders6 in animals.
Of course, these chemicals are diluted7 almost beyond detection by the vastness of the sea and not all plastics are exposed to strong sunlight or warm waters. But it’s clear that the millions of tons of plastic pollution building up in the world's oceans are up to no good.
1 biannual | |
adj.一年两次的 | |
参考例句: |
|
|
2 apparently | |
adv.显然地;表面上,似乎 | |
参考例句: |
|
|
3 constituents | |
n.选民( constituent的名词复数 );成分;构成部分;要素 | |
参考例句: |
|
|
4 notably | |
adv.值得注意地,显著地,尤其地,特别地 | |
参考例句: |
|
|
5 leaches | |
n.(将化学品、矿物质等)过滤( leach的名词复数 );(液体)过滤,滤去 | |
参考例句: |
|
|
6 disorders | |
n.混乱( disorder的名词复数 );凌乱;骚乱;(身心、机能)失调 | |
参考例句: |
|
|
7 diluted | |
无力的,冲淡的 | |
参考例句: |
|
|