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Just how great are the PM emissions from car tires? Has anyone quantified the effect?

by jdc 9y ago

KGIII 9y ago
2015 EPA Tire wear is something like 10%, maybe a bit less. Break wear is much higher at 60%. Engine emissions is most of the rest. EVs are heavier so they will have more tire wear. They don't brake as often, so that would go down.
- TheSpiceIsLife 9y ago
  Nitpick: I think you mean to say EVs don't apply friction braking as often as use regenerative braking a lot.
  - KGIII 9y ago
    Correct, thanks. I should have been more clear. They also (usually) have smaller pads and rotors.
    - TheSpiceIsLife 9y ago
      I've often wondered what brake pads are made from. I was aware asbestos had been used in the past. Have you read much about them: https://en.wikipedia.org/wiki/Brake_pad#Materials https://en.wikipedia.org/wiki/Brake_pad#Materials
      - KGIII 9y ago
        Yup. I believe they are still in use in some areas. There are still asbestos clutches, as well. They are, the clutches, still used in the US.
legulere 9y ago
http://www.sciencedirect.com/science/article/pii/S135223101630187X http://www.sciencedirect.com/science/article/pii/S1352231016... > Non-exhaust emissions already account for over 90% of PM10 and 85% of PM2.5 emissions from traffic.
- dEnigma 9y ago
  The authors regret that as Victor Timmers did not carry out the research under the auspices of the University of Edinburgh, nor in collaboration or consultation with any personnel at the University of Edinburgh, the affiliation of “University of Edinburgh” has now been removed from this work at the request of the Institution. In addition, subsequent to the publication of the Paper, Victor Timmers has disclosed a potential Conflict of Interest with regard to the work, namely: “non-financial support from Innas B.V, during the conduct of the study”. http://www.sciencedirect.com/science/article/pii/S1352231016308548 http://www.sciencedirect.com/science/article/pii/S1352231016...
  - legulere 9y ago
    Thanks! A bit sad that the publication was not retracted

Just how great are the PM emissions from car tires? Has anyone quantified the effect?

by jdc 9y ago

Just how great are the PM emissions from car tires? Has anyone quantified the effect?

2015 EPA Tire wear is something like 10%, maybe a bit less. Break wear is much higher at 60%. Engine emissions is most of the rest. EVs are heavier so they will have more tire wear. They don't brake as often, so that would go down.

TheSpiceIsLife 9y ago
Nitpick: I think you mean to say EVs don't apply friction braking as often as use regenerative braking a lot.
- KGIII 9y ago
  Correct, thanks. I should have been more clear. They also (usually) have smaller pads and rotors.
  - TheSpiceIsLife 9y ago
    I've often wondered what brake pads are made from. I was aware asbestos had been used in the past. Have you read much about them: https://en.wikipedia.org/wiki/Brake_pad#Materials https://en.wikipedia.org/wiki/Brake_pad#Materials
    - KGIII 9y ago
      Yup. I believe they are still in use in some areas. There are still asbestos clutches, as well. They are, the clutches, still used in the US.

legulere 9y ago

http://www.sciencedirect.com/science/article/pii/S135223101630187X http://www.sciencedirect.com/science/article/pii/S1352231016... > Non-exhaust emissions already account for over 90% of PM10 and 85% of PM2.5 emissions from traffic.

dEnigma 9y ago
The authors regret that as Victor Timmers did not carry out the research under the auspices of the University of Edinburgh, nor in collaboration or consultation with any personnel at the University of Edinburgh, the affiliation of “University of Edinburgh” has now been removed from this work at the request of the Institution. In addition, subsequent to the publication of the Paper, Victor Timmers has disclosed a potential Conflict of Interest with regard to the work, namely: “non-financial support from Innas B.V, during the conduct of the study”. http://www.sciencedirect.com/science/article/pii/S1352231016308548 http://www.sciencedirect.com/science/article/pii/S1352231016...
- legulere 9y ago
  Thanks! A bit sad that the publication was not retracted