3 ms·

It will be dose dependent.

• toss1 7y ago
  Exactly. Question is, what is the dosing level that would cause harm, and what are the routes that this material takes that might rise to such a level, vs how much is, e.g., stuck on the pavement and washed into the ditch with every rain?
  • labawi 7y ago
    > stuck on the pavement and washed into the ditch with every rain? This is also an important problem - there is a lot of synthetic rubber particulate in waterways and oceans - a notable fraction of all microplastics.
    • toss1 7y ago
      Exactly, so while the authors are ringing alarms about the particles from a health POV, they might be a irrelevant to that threat, but a major threat to certain ecosystems, or nothing at all. Certainly bears good investigation, but far too soon for conclusions (an I'm usually biased towards acting based on Precautionary Principle, but this just seems far too indirect to even make assumptions, let alone conclusions).
  • sjg007 7y ago
    I think we know that living near major roads is bad for you. So to figure out the dose you'd have to measure it at different distances. Volume and type of traffic. If you live near a major road you probably want to run an air cleaner with a hepa filter and not go outside to much or on busy days. https://www.lung.org/our-initiatives/healthy-air/outdoor/air-pollution/highways.html https://www.lung.org/our-initiatives/healthy-air/outdoor/air...