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Vehicle brakes produce charged particles that may harm public health: study

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Re: Vehicle brakes produce charged particles that may harm public health: study

#181

Post by bluSCALE4 »

ipqk wrote: post #166
autoexec wrote: post #124

The problem of "brake dust" on human health and air quality has been known for a long time ( https://phys.org/news/2020-01-air-pollution-effects-immune-c... ) before that there were also issues with asbestos in brakes, but thankfully those haven't been used since the 90s as far as I know. This is the first I'm hearing about electrically charged particles though. The bottom line is that proximity to traffic is horribl…

And EVs make some problems worse, such as tire dust because they're heavier than an equivalent ICE car.

EVs also don't really use brakes. They mainly use regen braking. 50k miles and on the same pads.

Re: Vehicle brakes produce charged particles that may harm public health: study

#182

Post by Johnny555 »

rjbwork wrote: post #170
ipqk wrote: post #166

Earlier quoted context omitted.

And EVs make some problems worse, such as tire dust because they're heavier than an equivalent ICE car.

Yep. Pretty much any kind of wear and tear part that is on an EV wears worse compared to a similarly powerful ICE. It's probably a wash or better because they don't use petroleum products for propulsion, but it is definitely a thing that needs to be considered. EV's are not some kind of panacea.

Except brakes, since they are rarely used due to regenerative braking. Tires, on the other hand, do wear faster than a lighter ICE car. My EV has almost 30,000 miles now and will need tires soon, but other than washer fluid, it has had no other consumables or wear items replaced.

Though to be fair, the tires on my previous ICE vehicle only lasted about 30,000 miles before they needed to be replaced, OEM car tires are often not long lasting. Brake fluid is due to be flushed next year, but not due to use of the brakes, just due to time.

Re: Vehicle brakes produce charged particles that may harm public health: study

#183

Post by pornel »

ipqk wrote: post #166
autoexec wrote: post #124

The problem of "brake dust" on human health and air quality has been known for a long time ( https://phys.org/news/2020-01-air-pollution-effects-immune-c... ) before that there were also issues with asbestos in brakes, but thankfully those haven't been used since the 90s as far as I know. This is the first I'm hearing about electrically charged particles though. The bottom line is that proximity to traffic is horribl…

And EVs make some problems worse, such as tire dust because they're heavier than an equivalent ICE car.

It's a shame this is used as an excuse to keep the heavy ICE SUVs and trucks. There are many EVs lighter than an average pickup truck.

If people really cared about this, they'd demand train-based public transport instead (no tires! fully electric! self-driving too!), or at very least limits on car weight regardless of the engine.

Re: Vehicle brakes produce charged particles that may harm public health: study

#184

Post by smallerfish »

Retric wrote: post #179
yaomtc wrote: post #172

Earlier quoted context omitted.

They said tire dust, though, and I don't see an "edited" note there

Said breaks when I replied, though the article is talking about breaks so it’s an easy slip up.

Brakes. Different thing

Re: Vehicle brakes produce charged particles that may harm public health: study

#185

Post by rubicon33 »

bluSCALE4 wrote: post #181
ipqk wrote: post #166

Earlier quoted context omitted.

And EVs make some problems worse, such as tire dust because they're heavier than an equivalent ICE car.

EVs also don't really use brakes. They mainly use regen braking. 50k miles and on the same pads.

My standard non EV gas car is 45k same pads?

Re: Vehicle brakes produce charged particles that may harm public health: study

#186

Post by kube-system »

rickydroll wrote: post #94
adgjlsfhk1 wrote: post #74

Earlier quoted context omitted.

drum breaks have the breaks enclosed so the particles won't be in the air

If you've ever worked on a vehicle with drum brakes, you would see the foolishness in your statement. Brake dust goes everywhere, whether it be drums or disc brakes. Older drum brakes were even more hazardous because the brake linings were built with asbestos, at least until the 1990s for US-made brake products. Aftermarket and foreign-made brake pads apparently still have asbestos in them. I'm not too worried about…

Drum brakes that I've worked on often have a lot of dust in the drum. Which is a good thing because all of that dust is not in the air. But of course they are not anywhere close to being sealed.

Re: Vehicle brakes produce charged particles that may harm public health: study

#187

Post by aceazzameen »

Gigachad wrote: post #128
aceazzameen wrote: post #115

Earlier quoted context omitted.

Being on or near a train platform and you can see brake dust caked on everything. Probably dust combined with grease. It's worse looking than roads.

I’m pretty sure they grease the rails in some spots, particularly the curvy bits that are often near platforms so it would get stuck to the rails and such. Cars would put out massively more pollution but it’s more free to blow around in the wind. I had some boxes stored in a storage cage in my apartment car park and after 6 months sitting there, they were all coated in a thick black dust. Since there was no wind or r…

They don't grease the cross beams on ceilings though, and those things are nasty in train stations. Same stuff you see creeping up the walls around the tracks in the subway tunnel. Not a competition though, the pollution is bad and we're all so used to it.

Re: Vehicle brakes produce charged particles that may harm public health: study

#188

Post by bluSCALE4 »

rubicon33 wrote: post #185
bluSCALE4 wrote: post #181

Earlier quoted context omitted.

EVs also don't really use brakes. They mainly use regen braking. 50k miles and on the same pads.

My standard non EV gas car is 45k same pads?

Except mine are basically new.

Re: Vehicle brakes produce charged particles that may harm public health: study

#189

Post by kube-system »

WaxProlix wrote: post #43
EForEndeavour wrote: post #37

Earlier quoted context omitted.

I've never driven an EV. How do you approach stop signs and red lights other than braking? Is "engine braking" (regenerative braking?) strong enough to handle that big a fraction of slowing down in city traffic?

Generally, yes. Usually there are settings for how much regen you want, but the term 1 pedal usually inies a regenerative brake strong enough to stop at stop signs or when exiting freeways.

"1 pedal" just refers to vehicles that perform a high degree of regen when the throttle is lifted. Other designs that require the user to press the brake pedal are not necessarily engaging the brake pads when you do so, many of them are also slowing the vehicle with regen when you press the brake pedal.

When you press the brakes on an EVs or hybrid, they typically use regenerative braking up to the limits of the motor and charging system, and only apply the brake pads after those technical limits are met. There are many "two pedal" vehicles that can come to a complete stop, or close to it, with regen.

Re: Vehicle brakes produce charged particles that may harm public health: study

#190

Post by bluSCALE4 »

pornel wrote: post #183
ipqk wrote: post #166

Earlier quoted context omitted.

And EVs make some problems worse, such as tire dust because they're heavier than an equivalent ICE car.

It's a shame this is used as an excuse to keep the heavy ICE SUVs and trucks. There are many EVs lighter than an average pickup truck. If people really cared about this, they'd demand train-based public transport instead (no tires! fully electric! self-driving too!), or at very least limits on car weight regardless of the engine.

Most drivers are virtue signalers. Until we have eco batteries or hydrogen buses and trains are the only real eco solution.
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