638
What is a well known 'public secret' in the industry you work in that the majority of outsiders are unaware of? (lemm.ee)
submitted 2 years ago by to c/asklemmy@lemmy.world
651 comments fedilink hide all child comments
you are viewing a single comment's thread
view the rest of the comments
[–] 30 points 2 years ago* (last edited 2 years ago) (1 child)

How much from tires when braking? I was under the impression that tires (edit: cats!) produce more pm2.5 from tires than brakes, which in turn account for more than the exhaust.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 12 points 2 years ago (1 child)

    I always understood tire deg to be microplastic/rubber not pm2.5. Brutal for the ecosystem around roadways and water bodies. Ultimately adding to the micro plastic pollution globally.

  • permalink
  • fedilink
  • source
  • parent
  • hideshow 2 child comments
    •
  • [–] 3 points 2 years ago

    The pm2.5 refers to the particle diameter and incorporates any particles that are less than 2.5 micrometers in size. So particulate matter and microplastics are not necessarily a contradiction

    But good that you brought it up, I did some googling and umweltdialog.de writes that microplastics from tires make up one third of Germany's microplastics pollution! That's an insane amount!

    It's late here, so I won't read it today, but the Fraunhofer Research Institute did a study called "TireWearMapping", which promises to contain a ton of information on the creation and distribution of tire based pollutants: https://www.umsicht.fraunhofer.de/de/projekte/tyrewearmapping.html

  • permalink
  • fedilink
  • source
  • parent