from Hacker News

Scientists in Japan develop plastic that dissolves in seawater within hours

by chfritz on 6/4/25, 5:40 PM with 3 comments

  • by Beas on 6/4/25, 9:48 PM

    Without knowing too much about ocean pollutants, I’d love some elaboration on this bit:

    > Aida said the new material is as strong as petroleum-based plastics but breaks down into its original components when exposed to salt. Those components can then be further processed by naturally occurring bacteria, thereby avoiding generating microplastics that can harm aquatic life and enter the food chain.

    It seems like the rate at which this naturally occurring bacteria consume the components is pretty important in determining whether there will be microplastics in the ocean long enough to impact sea life. The quoted conclusion seems overly optimistic.

  • by raylad on 6/4/25, 9:51 PM

    Yes but how toxic is it?