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Lead is even deadlier than was feared

theguardian.com

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Re: Lead is even deadlier than was feared

#71

Post by freehunter »

xapata wrote: post #50
toomanybeersies wrote: post #25

Earlier quoted context omitted.

It's very hard to change anything in GA. Reliability is a much higher priority in aviation, if the engine in your car dies, you stop, if the engine in your plane dies, you fall out of the sky. GA planes also generally last a lot longer than cars, you have Cessnas from the 70's still flying with their original engines from the 70's.

> from the 70s "But they still work!" is not a good excuse to pollute.

I agree, but it's a better reason than most excuses to pollute which tend to boil down to "because I want to". At least airlines are working (slowly) to fix the problem.

Re: Lead is even deadlier than was feared

#72

Post by Erlangolem »

DenisM wrote: post #68
Erlangolem wrote: post #33

Earlier quoted context omitted.

It can be, but it manifestly isn’t and hasn’t been anytime in recent history. We’re so far from an abuse of it that radical and prolonged changes in society would be required before we had to worry about that particular slippery slope.

GMO is banned for no reason in EU. Their loss though.

There is a reason, which is mainly a total loss of trust in the companies and institutions which would otherwise allay people’s fears. A lot of people also object to GMO, not for some crystsl-gripping reason, but because they don’t trust companies patenting genes and plants.

Re: Lead is even deadlier than was feared

#73

Post by thfaway »

Erlangolem wrote: post #32
jonex wrote: post #4

Earlier quoted context omitted.

What are the poisons of today that we allow? I general, from what I've gathered, we have been replacing substances that accumulates in nature with substances that breaks down over time. So for instance, we still do allow ozone but also watch the levels to ensure they aren't too high. I know there are issues with a lot of medication as it goes out in the sewage and there's still a big question mark on the safety of so…

Nanoparticles of soot, magnetite, and other industrial atmospheric pollutants. https://www.sciencemag.org/news/2016/09/industrial-air-pollu... We already accept the impact of millions a year dying as a result of industrial pollution, especially from burning coal; we mostly shrug and move on. VOC’s, microplastic, nanoparticles such as TiO2, a lot of the crap in cosmetics, and probably a lot more.

>We already accept the impact of millions a year dying as a result of industrial pollution...

We accept them because the mainstream narrative does not make a big issue of it. On the other side, we make a big deal when there is a measles death, calling for death of anti-vaxxers, because the mainstream narrative suggests so...

In other words, the public, including the people here. is a bunch of morons who won't jump away from the path of a slow moving road roller, unless the mainstream narrative tells us to do so...

As for who decides the main stream narrative, I would say the ones with the most resources...

Re: Lead is even deadlier than was feared

#74

Post by freehunter »

matte_black wrote: post #62
mikosty wrote: post #59

Earlier quoted context omitted.

Reference for this?

Fairly common knowledge. In fact, because Spirulina absorbs heavy metals, it’s important to get Spirulina from clean sources as you may be ingesting Spirulina that already has absorbed heavy metals within it. Be careful.

>Fairly common knowledge

So complete nonsense then. Got it.

Re: Lead is even deadlier than was feared

#75

Post by NPMaxwell »

toomanybeersies wrote: post #25
coryrc wrote: post #15

Earlier quoted context omitted.

General Aviation (private planes) are STILL spewing lead into the atmosphere. It's not like they don't have the money to fix it, they just don't care about the externalities.

It's very hard to change anything in GA. Reliability is a much higher priority in aviation, if the engine in your car dies, you stop, if the engine in your plane dies, you fall out of the sky. GA planes also generally last a lot longer than cars, you have Cessnas from the 70's still flying with their original engines from the 70's.

Don't industries that require high levels of reliability schedule replacement of aging equipment, rather than continued repairs to keep old equipment running?

Re: Lead is even deadlier than was feared

#76

Post by freehunter »

DenisM wrote: post #69
adventured wrote: post #54

Earlier quoted context omitted.

Lipoic acid will remove some heavy metals from your body. It can also cross the blood-brain barrier and remove mercury, one of the few things that can.

Is it folk wisdom? Or are there references to back it up?

Everything in this thread that supposes to be medical advice is nonsense folk wisdom. If there was a medicine that cured lead poisoning we wouldn't have articles like this one.

Re: Lead is even deadlier than was feared

#77

Post by andlier »

freehunter wrote: post #67
gambiting wrote: post #61

Earlier quoted context omitted.

You can actually still buy leaded fuel for automotive use in the UK, although it is very expensive and limited to few garages around the country - basically it serves extremely limited group of antique vehicles which are kept in original state - unmodified engines which have to run on leaded petrol. http://www.fbhvc.co.uk/legislation-and-fuels/fuel-informatio...

Is there a reason to use actual leaded gas rather than a lead substitute? I don't know that much about classic cars but my dad uses a lead substitute for his as opposed to actual lead.

“Simply put, unleaded fuel burns less smoothly than leaded and the toluene and benzene, which is added to the fuel to act as a lead substitute, burns to form what are called peroxides. Unfortunately peroxides are inherently unstable and explode, forming shock waves that cause detonation. This explains why engines designed to run on unleaded from the outset feature sophisticated knock sensors, which retard the ignition setting at the onset of harmful detonation.”

https://www.classiccars4sale.net/classic-car-how-to-guides/r...

Re: Lead is even deadlier than was feared

#78

Post by ethbro »

cornholio wrote: post #46
coryrc wrote: post #15

Earlier quoted context omitted.

General Aviation (private planes) are STILL spewing lead into the atmosphere. It's not like they don't have the money to fix it, they just don't care about the externalities.

There is currently a strong effort to move away from leaded fuels, and multiple producers have been selected by the FAA to formulate and sell fuel blends that present the desired octane ratings and are proven safe. The fist certifications of such fuels is expected this year: https://www.faa.gov/nextgen/where_we_are_now/nextgen_update/...

From the linked article, it's nice to see they moderated to a "fuel formulation change + limited engine modifications" approach.

It seems unwise, chemically speaking, to expect we'll be able to find a drop in replacement that's less toxic (vs creating something that we find out is toxic in another 50 years).

Re: Lead is even deadlier than was feared

#79

Post by matte_black »

sulam wrote: post #65
mikosty wrote: post #59

Earlier quoted context omitted.

Reference for this?

Ironically the first scholarly result searching for heavy metals and spirulina covers the risk of ingesting them because it bioaccumulates. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3824145/ The article does refer to several studies showing health benefits for spirulina, although none of them discuss using it to remove heavy metals from the body (it’s not even clear to me how such a mechanism could possibly work).

I am not a doctor, but it’s something to do with Spirulina binding with the metals.

Or it could be that I’ve mistaken Spirulina for Chlorella.

Because they bind with metals it’s important to get them from clean sources as I mentioned.

Re: Lead is even deadlier than was feared

#80

Post by matte_black »

freehunter wrote: post #74
matte_black wrote: post #62

Earlier quoted context omitted.

Fairly common knowledge. In fact, because Spirulina absorbs heavy metals, it’s important to get Spirulina from clean sources as you may be ingesting Spirulina that already has absorbed heavy metals within it. Be careful.

>Fairly common knowledge So complete nonsense then. Got it.

I don’t know man. It was just something I knew from some time ago and there’s no end of google results that talk about this.

Not really sure what other source you’re looking for. A research paper? Even those can be nonsense.

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