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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

#91
post #3

Electric vehicles are heavier, which means they must spend more brake pads to stop. But they also use regenerative breaking, which reduces pad wear. So I'm not sure if they make it worse or not.

But you rarely have to brake an EV though. I’ve had two EV’s over the last 6 years, and I have to remember to occasionally hit the brakes to keep them from rusting. One pedal driving is just money - saves power and is just much smoother over all than old school breaking. IMO.

[deleted]

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

#92

Earlier quoted context omitted.

Selling brake pads that don't wear out would be immensely profitable. Things people want get bought.

I dunno mate. If I were a brake pad salesman I'd prefer they last less not more.

So? There would only be one "brake pad salesman" left, who would sell indestructible brake pads to car manufacturers, and all the others would go bust.

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

#93

Earlier quoted context omitted.

I dunno mate. If I were a brake pad salesman I'd prefer they last less not more.

So? There would only be one "brake pad salesman" left, who would sell indestructible brake pads to car manufacturers, and all the others would go bust.

Right. It's not like they can form a cartel and collectively decide how long a brake pad should last, just like the incandescent light bulb cartel [1] of the early 20th century or the NAND flash memory cartel of the 21st century.

Mate you're far too naive to believe what you're saying.

[1] https://en.m.wikipedia.org/wiki/Phoebus_cartel

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

#94

Earlier quoted context omitted.

Heavy vehicles like busses and trucks more often have drum brakes which I guess are better from a air pollution view?

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 this. It's an engineering problem and now that is been raised, we can find solutions.

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

#95

Just want to point out that most electric and hybrid vehicles use regenerative braking most of the time and only use real brakes at very slow speeds or in emergencies. So it might be totally misleading to say that electric vehicles are the problem, when they are probably the solution.

The article has weird reasoning. If we remove tailpipe emissions, which are by far the largest, then brake/tire wear emissions become visible and are next in the list to deal with. But we won't deal with the latter before the former is dealt with.

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

#96
post #84

Earlier quoted context omitted.

Well cursing in an EV is the equivalent of putting an ICE car in neutral. Modern ICE do that as well. To answer your question it still slows down due to wind resistance and friction.

If you put a modern ICE car in neutral while moving, you’ll use as much gas as you would while sitting in a parking lot idling. However if you just coast in gear with the engine braking slowing you down, a modern car will turn off the fuel to the engine, so zero gas is used.

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

#97
post #66

Earlier quoted context omitted.

Do you really need an independent peer-reviewed study to know if inhaling brake dust is bad for you or not? At some point, it's important to trust your instincts. I don't think you need a medical degree to understand that inhaling tiny particles made of nasty stuff leads to bad health outcomes.

While the sentiment on that is laudable, it's that kind of assuming that leads all kinds of idiots to jump to entirely ridiculous conclusions.

Given that we're on HN, I was assuming that everyone here is educated and has some kind of basic reasoning skills. Common knowledge and all that.

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

#98
post #66
post #19

Clickbait. "The toxicity and health effects of brake wear particles are largely unknown". Is there any real harm found? What's the concentration of them close to the dangerous road? What's effect of them comparing to pm10 or pm2.5?

Do you really need an independent peer-reviewed study to know if inhaling brake dust is bad for you or not? At some point, it's important to trust your instincts. I don't think you need a medical degree to understand that inhaling tiny particles made of nasty stuff leads to bad health outcomes.

Instincts often cheat you. I'm not saying that it's healthy but Does it really have any effect at all? What's the concentration of particles? How harful is it comparing to cooking or peeling onions? Do we need to care about it at all?

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

#99

Just want to point out that most electric and hybrid vehicles use regenerative braking most of the time and only use real brakes at very slow speeds or in emergencies. So it might be totally misleading to say that electric vehicles are the problem, when they are probably the solution.

There's a whole load of anti-EV FUD going out right now.

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

#100
post #19

Clickbait. "The toxicity and health effects of brake wear particles are largely unknown". Is there any real harm found? What's the concentration of them close to the dangerous road? What's effect of them comparing to pm10 or pm2.5?

The brake pad particles are pm10 and pm2.5.

Well I meant other particles treated in the regular study of them. Because effect of pm10 and pm2.5 is studied. Do break pad particles somehow worse than usual.
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