3 ms·

Not to mention tire and break emissions which are still considerable on any vehicle.

ianai 5y ago
My hybrid uses the brakes significantly less than a nonhybrid ICE. The motors do a lot of the stopping work instead of the brakes. It’s easiest to see this going downhills. My cars recharging while other cars are using brakes. Tire wear though is definitely not abated.
- simondotau 5y ago
  Is tyre wear really a comparable concern? Think about how many times you refuel your car between tyre changes. Contemplate the volume of fuel burned versus the volume of material scraped off your tyres over their lifetime. Whatever the environmental cost of tyres, they cannot compete with liquid fuel.
  - ianai 5y ago
    It’s more about PM2.5 and similar particulate pollution. But absolutely there are bigger concerns. Tire and brake pollution gets brought up as a false equivalency between ICE and EV car emissions often. Just wanted to add a factoid about how electrified vehicles really are more efficient.
  - hypertele-Xii 5y ago
    It's not just how much stuff is consumed. Different materials break into different size and shape particles. Tires may wear out slower but the particles they release may cause more damage.
  - deleted 5y ago
    [deleted]
- hinkley 5y ago
  They've also banned certain materials from brake pads that were causing problem. Copper is a no-no in the time between when my car was built and I last talked to someone about replacements (my car didn't need it because while it's an ICE, the computer is smart enough to do engine braking much of the time).
nick__m 5y ago
That carbon is not a green house gas so its okay :P But seroulsly, a review found on pubmed¹ made me realise that brakes and tires emissions are an understudied public health threat. Breaks emissions accounts for 16% to 55% of the PM₁₀ emitted by an ICE car and those particles are an healthy mix of iron, copper, barium, lead, inorganic carbon (probably as soot and graphite, I would be terribly surprised if it was as diamonds and graphene) and various unlisted and unstudied organic compounds! 1- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315878/#Sec8title https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315878/#Sec8ti... P.s. I tried to link directly to the conclusion but the pubmed reader sometimes show a seemingly random page... so the correct page is 40

My hybrid uses the brakes significantly less than a nonhybrid ICE. The motors do a lot of the stopping work instead of the brakes. It’s easiest to see this going downhills. My cars recharging while other cars are using brakes. Tire wear though is definitely not abated.

simondotau 5y ago
Is tyre wear really a comparable concern? Think about how many times you refuel your car between tyre changes. Contemplate the volume of fuel burned versus the volume of material scraped off your tyres over their lifetime. Whatever the environmental cost of tyres, they cannot compete with liquid fuel.
- ianai 5y ago
  It’s more about PM2.5 and similar particulate pollution. But absolutely there are bigger concerns. Tire and brake pollution gets brought up as a false equivalency between ICE and EV car emissions often. Just wanted to add a factoid about how electrified vehicles really are more efficient.
- hypertele-Xii 5y ago
  It's not just how much stuff is consumed. Different materials break into different size and shape particles. Tires may wear out slower but the particles they release may cause more damage.
- deleted 5y ago
  [deleted]
hinkley 5y ago
They've also banned certain materials from brake pads that were causing problem. Copper is a no-no in the time between when my car was built and I last talked to someone about replacements (my car didn't need it because while it's an ICE, the computer is smart enough to do engine braking much of the time).

nick__m 5y ago

That carbon is not a green house gas so its okay :P But seroulsly, a review found on pubmed¹ made me realise that brakes and tires emissions are an understudied public health threat. Breaks emissions accounts for 16% to 55% of the PM₁₀ emitted by an ICE car and those particles are an healthy mix of iron, copper, barium, lead, inorganic carbon (probably as soot and graphite, I would be terribly surprised if it was as diamonds and graphene) and various unlisted and unstudied organic compounds! 1- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315878/#Sec8title https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4315878/#Sec8ti... P.s. I tried to link directly to the conclusion but the pubmed reader sometimes show a seemingly random page... so the correct page is 40