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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

#291

Post by robertlagrant »

samatman wrote: post #277
robertlagrant wrote: post #275

Earlier quoted context omitted.

> with sources that companies routinely collude in anti-consumer ways Was this your link that said "there was a cartel in an industry once"? That doesn't seem to demonstrate a general issue.

The link that says "although there is vigorous disagreement about whether 1000 days was a good technical standard or a case of planned obsolescence, a cartel did exist, and there are sources which say it was to use planned obsolescence to sell more bulbs". Inconveniently, longer-lasting bulbs emit less light, and more heat. If you remember the heat of a 100W incandescent bulb, perhaps you might see the fire hazard in…

I think you replied to the wrong person.

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

#292

Post by carlmr »

belorn wrote: post #276
carlmr wrote: post #227

Earlier quoted context omitted.

What you're saying is completely true for tire particulates, but if you drive an electric car normally you're almost never engaging the brakes. Since almost all normal amount of braking is in the envelope of where your regeneration braking can take all of the power. This counts even for hybrids though. A friend of mine had to replace his brakes after over 10 years and 180,000km on his Prius for the first time. Not be…

ICE cars can use engine braking, and here in Sweden it get focused as part of the driving license and associated training. I recall even getting the recommendation to "exercise" the breaks once in a while in order to assert that they actually do work when you needed, since breaks that don't get used enough can get rust buildup.

Of course, this is also part of driver training in Germany. But the engine braking on EVs makes brakes only necessary for emergency braking if you're not driving like a maniac. With ICE engines you still need the brakes a lot more. Especially downhill.

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

#293

Post by samatman »

robertlagrant wrote: post #291
samatman wrote: post #277

Earlier quoted context omitted.

The link that says "although there is vigorous disagreement about whether 1000 days was a good technical standard or a case of planned obsolescence, a cartel did exist, and there are sources which say it was to use planned obsolescence to sell more bulbs". Inconveniently, longer-lasting bulbs emit less light, and more heat. If you remember the heat of a 100W incandescent bulb, perhaps you might see the fire hazard in…

I think you replied to the wrong person.

Not precisely, but I was agreeing with you, although I see how that might have been unclear.

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

#294

Post by porkbeer »

mattgrice wrote: post #230
CharlesW wrote: post #148

Earlier quoted context omitted.

> …that doesn't rule out that the poorest in the country (minorities and whites) are not the most exposed. Setting aside race, to me it seems like "economically disadvantaged populations share a disproportionate burden of traffic-related air pollution exposure" makes this pretty clear.

It's not 1950, everyone on this site has a 1+ GFLOP machine so there's no need to squash a bunch of independent variables down to one dimension or as you call it "set aside race." Unless you're not a hacker, that is. Even into the 1960s wealthy black people were prevented from buying and living in the 'good' parts of even northern US cities.

Care to enlighten us as to the second paragraph? I only found some misc stuff, nothing appearing to be systemic or enshrined in law. In fact I see laws against such things being enforced more than lamented in searches.

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

#295

Post by porkbeer »

penneyd wrote: post #222
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.

A model 3 is no heavier than a 3 series.

Not by my math unless comparing the hybrid.

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

#296

Post by porkbeer »

api wrote: post #99
daft_pink wrote: post #87

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.

And pro ev fud too. Hopefully they balance out.

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

#297

Post by porkbeer »

rightbyte wrote: post #52
ThinkBeat wrote: post #49

This will come from all ground transportation sources, right? Busses, trains, trams, subways etc. Probably the heavier the vehicle the more particles are likely to be produced?

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

Not really. Most brake dust falls from the drums by design.

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

#298

Post by jpatters »

helsinkiandrew wrote: post #269
za3faran wrote: post #265

Earlier quoted context omitted.

EVs also tend to be heavier than their ICE counterparts.

> EVs also tend to be heavier than their ICE counterparts. As the parent comment said - but I was questioning about whether increased torque has an actual impact on tyre wear.

I’ve driven an ev for the last 3 years (over 100k kms) and find my tires last about half as long. So yes, it has a big impact.

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

#299

Post by porkbeer »

fddrdplktrew wrote: post #249
AnarchismIsCool wrote: post #200

Earlier quoted context omitted.

Only very small piston airplanes, and the need fuel is being phased out. Areas immediately surrounding heavily used ga airports are occasionally seeing elevated levels but it's not a particularly potent source for the public. The issue is mostly employees at the airport being exposed while fueling and performing maintenance.

why are they still using it?

They want a perfect changeover where new fuel can run in old engines. Problem is general aviation is stick in the 1950s, and dont want to have to replave their valve seats with hardened ones.

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

#300

Post by scottyah »

blagie wrote: post #285
zanfr wrote: post #272

Earlier quoted context omitted.

would be about time we HEPA'd everything in health care

Why? HEPA doesn't matter unless you have a sealed system. An open door or a cloth curtain means the 99.97% means nothing relative to 99%.

Isn't the point to have a positive pressure system, so unfiltered air doesn't come in?
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