Tyre pollution up to 1,000 times worse than engines, study finds.

MrCostington · 18-09-2020 2:45pm #1

Just seen this on the RTE site

https://www.rte.ie/lifestyle/motors/2020/0918/1166000-tyre-pollution-up-to-1-000-times-worse-than-engines-study-finds/

The source seems to be this:

https://www.emissionsanalytics.com/news/pollution-tyre-wear-worse-exhaust-emissions

"Using a popular family hatchback running on brand new, correctly inflated tyres, we found that the car emitted 5.8 grams per kilometer of particles."

OK, so assuming this is for all 4 tyres, not just one:

5.8 grams per kilometer = 58kg per 10,000 km, or 116kg per average mileage of 20,000 km, which is a loss of 29kg per wheel, per annum, clearly not possible.

Is my maths wrong, or what am I missing?

colm_mcm · 18-09-2020 2:48pm

Another route to taxation.

Isambard · 18-09-2020 2:57pm

it's for the whole vehicle not for one tyre, however it still seems high

screamer · 18-09-2020 3:00pm

Don’t forget the emissions to produce them, import them from China and re export them for disposal, cause you know we don’t like dealing with our own rubbish here..... and the emissions per tyre are even more than that.

quokula · 18-09-2020 3:01pm

Non-exhaust emissions (NEE) are particles released into the air from brake wear, tyre wear, road surface wear and resuspension of road dust during on-road vehicle usage. No legislation is in place to limit or reduce NEE, but they cause a great deal of concern for air quality.

So it's not just the tyre losing mass, it's the dirt it kicks up from the asphalt and from wearing the actual road surface too. Presumably a lot of that settles on the road again, to be kicked up by another car later and get counted again. Would need to be able to really dig into the figures to understand it.

MrCostington · 18-09-2020 3:14pm

Isambard wrote: »

it's for the whole vehicle not for one tyre, however it still seems high

I calculated for one tyre

MrCostington · 18-09-2020 3:15pm

quokula wrote: »

So it's not just the tyre losing mass, it's the dirt it kicks up from the asphalt and from wearing the actual road surface too. Presumably a lot of that settles on the road again, to be kicked up by another car later and get counted again. Would need to be able to really dig into the figures to understand it.

Agree the study talks about other issues, but the 5.8g seems to be clearly related to tyres only:

To understand the scale of the problem, Emissions Analytics – the leading independent global testing and data specialist for the scientific measurement of realworld emissions – performed some initial tyre wear testing. Using a popular family hatchback running on brand new, correctly inflated tyres, we found that the car emitted 5.8 grams per kilometer of particles.

And the title of their press release too - Press Release: Pollution From Tyre Wear 1,000 Times Worse Than Exhaust Emissions

zg3409 · 18-09-2020 5:09pm

I suspect this research may be funded by the oil industry to delay the move to EV. Sure tyres pollute too...

I have researched pollution recently and there are lots of fine particles in the air of different sizes from different sources.

I suspect exhaust emissions are far more dangerous than fine rubber, and I expect rubber tends to settle and get washed away more than exhaust gases. I suspect rubber is less reactive to the lungs compared to known poisonous exhaust gasses.

I have a DIY pollution air sampling unit, which can give a rough indication of fine particles over time where it is located. They are a good learning tool if a little vague on what was detected.

https://www.dublininquirer.com/2020/01/22/in-blackpitts-dubliners-are-invited-to-build-their-own-air-pollution-sensors

Atlantic Dawn · 18-09-2020 5:10pm

Who funded the study?

i57dwun4yb1pt8 · 18-09-2020 11:15pm

a car tyre weighs about 8 kg
so this is bollox

id say given my =last tyre change was 40000 km, the tyre would lose may be .5 kg MAX then is 2 kg per car per 40 000 km

then 0.05 gram per tyre per km

or 0 .2 gram per car per km

but id say its even less than that

Vestiapx · 18-09-2020 11:17pm

Seen this push already saying ev eat tyres .

Leonard Hofstadter · 19-09-2020 12:28am

Given that EV fridge freezers weigh a lot more than ICE equivalents, that would, if true, mean they produce more PM than even the much derided diesel - from the tyres.

You don't need any engineering degree or peer reviewed study to know that the considerable weight increase of PHEVs let alone EVs over ICE vehicles means more tyre noise and more wear and tear on our roads, which in turn means more money is required.

Back to the links on PM and tyres, it would be interesting to see a scientifically valid study on this (a real one, not one by the ever increasing number of EVangelists or the likes of Tesla, nor one done by the oil industry either).

We all know from the mass adaptation of diesels 10 years ago that the law of unintended consequences is never too far away (although if anyone bothered to do their research in 2008, they would have known that diesels were allowed produce more NOx and PM under the EU's emissions guidelines - and even now at Euro 6, they still legally are allowed to).

Dakota Dan · 19-09-2020 12:32am

MrCostington wrote: »

Just seen this on the RTE site

https://www.rte.ie/lifestyle/motors/2020/0918/1166000-tyre-pollution-up-to-1-000-times-worse-than-engines-study-finds/

The source seems to be this:

https://www.emissionsanalytics.com/news/pollution-tyre-wear-worse-exhaust-emissions

"Using a popular family hatchback running on brand new, correctly inflated tyres, we found that the car emitted 5.8 grams per kilometer of particles."

OK, so assuming this is for all 4 tyres, not just one:

5.8 grams per kilometer = 58kg per 10,000 km, or 116kg per average mileage of 20,000 km, which is a loss of 29kg per wheel, per annum, clearly not possible.

Is my maths wrong, or what am I missing?

I stopped reading after RTE, it’s the propaganda machine.

ahnowbrowncow · 19-09-2020 12:36am

Op's car

antodeco · 19-09-2020 8:36am

colm_mcm wrote: »

Another route to taxation.

I'm really getting tyred of all this

CH3OH · 19-09-2020 8:48am

Think the figures have been grossly inflated.

Isambard · 19-09-2020 8:49am

CH3OH wrote: »

Think the figures have been grossly inflated

Brilliant

and would be worse if under inflated

The Royal Scam · 19-09-2020 8:56am

This thread is really starting to gain some Traction

colm_mcm · 19-09-2020 8:57am

antodeco wrote: »

I'm really getting tyred of all this

True, it hasn’t been a good year, and now this.

mikeecho · 19-09-2020 10:01am

I'm sure the Green Party will work tyrelessly to introduce a new tyre tax

mikeecho · 19-09-2020 10:03am

I was going to tell a joke about car tyres, but i couldnt handle the pressure.

I think i might have put the BAR too high

When im done i will let out a PSIgh of relief

i57dwun4yb1pt8 · 19-09-2020 10:48am

schtick tastic

19-09-2020 1:13pm

Tyres also contain plastic compounds which wash into the sea and gets embedded into sea life.

But what can you do. It's not a solvable problem and the plastic compounds are needed to make the tyre safer.

r3nu4l · 19-09-2020 6:31pm

salonfire wrote: »

.

But what can you do.

Well how about
1. Not buying electric cars
2. Not buying heavy SUVs
3. Driving in a style that helps tyres last longer
4. Not buying budget tyres

Markcheese · 19-09-2020 6:42pm

And don't forget to add particles from brake pads and discs ,

bop1977 · 19-09-2020 7:15pm

The James Dyson award has this covered already. No need to panic.

https://www.google.ie/amp/s/amp.theguardian.com/environment/2020/sep/17/device-to-curb-microplastic-emissions-wins-james-dyson-award

galwaytt · 19-09-2020 9:02pm

r3nu4l wrote: »

Well how about
1. Not buying electric cars
2. Not buying heavy SUVs
3. Driving in a style that helps tyres last longer
4. Not buying budget tyres

So diffin' is out then, yeah ??

Charles Babbage · 19-09-2020 9:30pm

They are obviously losing their grip.

Voodoomelon · 20-09-2020 12:48am

This is like the AAs survey about 2 years ago, proudly declaring the average cost to run a car in Ireland per year was something like €11k a year, where €4k of that was parking fees. Horse manure of the highest order.

AndrewJRenko · 20-09-2020 4:54pm

r3nu4l wrote: »

Well how about
1. Not buying electric cars
2. Not buying heavy SUVs
3. Driving in a style that helps tyres last longer
4. Not buying budget tyres

And let's not forget (though I know this is coming from way out left field):

5. Driving less.

VeVeX · 20-09-2020 5:06pm

mikeecho wrote: »

I'm sure the Green Party will work tyrelessly to introduce a new tyre tax

There's already an additional tax in place on passenger car tyres, its labeled as a 'visible environmental management cost' or vEMC for short. It's managed by repak and costs €2.80+vat per tyre.

Orderofchaos · 20-09-2020 9:19pm

Atlantic Dawn wrote: »

Who funded the study?

Very pertinent question.
Also never fund a study without having written your conclusion.

r3nu4l · 20-09-2020 11:58pm

galwaytt wrote: »

So diffin' is out then, yeah ??

Except at weekends or if you're on holidays, coz it doesn't count then

Del2005 · 21-09-2020 1:20am

r3nu4l wrote: »

Well how about
1. Not buying electric cars
2. Not buying heavy SUVs
3. Driving in a style that helps tyres last longer
4. Not buying budget tyres

The ironic thing is because budget tyres grip so badly they probably produce less particles than a quality tyre that has good grip.

And what you do is don't believe a report that says that a tyre losses 58kg per 10,000km.

r3nu4l · 25-09-2020 12:57pm

It didn't say that though. Read the full report.

Tyre pollution up to 1,000 times worse than engines, study finds.

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