Leaded Gas Was a Known Poison the Day It Was Invented (2016)

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ddownbad_ about 3 hours ago 68 commentsRead Article on smithsonianmag.com

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louky•about 2 hours ago

The major proponent was also known as

Thomas Midgley Jr.: Accidentally The Most Dangerous Man Who Ever Lived[0]

Leaded gas, CFCs, and accidentally created a machine that ended his own existence.[1]

[0]https://allthatsinteresting.com/thomas-midgley-jr [1]https://en.wikipedia.org/wiki/Thomas_Midgley_Jr.

embedding-shape•about 2 hours ago

I had one purple link on that second Wikipedia page, which (macabre as it sounds) was very interesting to read through: https://en.wikipedia.org/wiki/List_of_inventors_killed_by_th...

Also leads to another great list-of-lists; https://en.wikipedia.org/wiki/Lists_of_unusual_deaths

flaunf221•about 1 hour ago

> The Most Dangerous Man Who Ever Lived

The titles like annoy me to no end.

Because Thomas Midgley was an engineer. Not overlord of General Motors. Not director. Not even a large shaholder.

GM Leadership knew effects of TEL. And for decades traded everyone's health for their profits. Midgley is complicit, but he's just a small piece.

masklinn•13 minutes ago

> Midgley is complicit, but he's just a small piece.

Midgley used to tour around “proving” the safety of leaded gas by pouring it on his hands. And had to be treated twice for lead poisoning.

He was very much a culprit.

tim-tday•12 minutes ago

He washed his hands with leaded gasoline on national television to show it was safe. It was not safe. He lied and suppressed the science. Even if other people lied he was the public face of the lie.

gertop•about 1 hour ago

People who absolve engineers of all responsibility annoy me to no end. They're omnipresent on this forum and justify working for Facebook with things like "not my decision" or "someone else would do it" or "it's not that bad you just don't understand" or "I'm just following orders"

flaunf221•27 minutes ago

Good thing I didn't absolve him of "all responsibility" and even wrote explicitly that he is complicit.

hyperhello•about 1 hour ago

People who say annoy me to no end annoy me no end. They’re different phrases.

mmooss•about 2 hours ago

> Accidentally

Based on the OP, it wasn't at all accidental. They knew it was dangerous and chose it because they could make more money than with safer alternatives such as ethanol.

cyberax•about 2 hours ago

I don't think he really appreciated the danger of lead. Its acute toxicity was well-known, but not its chronic toxicity.

And plenty of stuff is toxic in large quantities but harmless (or even vital!) in small quantities.

whatisthiseven•about 1 hour ago

Then you don't know anything about the man. He intentionally inhaled large quantities of leaded gas to prove it was safe to on lockers.

He would then spend months in Florida recovering from lead poisoning.

He knew, and he didn't care.

mmooss•about 1 hour ago

Interesting - what is that based on?

He's not some incidental commentator. He's an engineer and a principle force behind this technology. He is responsible for the outcomes - 'I didn't know' is reckless negligence. And if there were clear acute problems, chronic problems weren't hard to guess at for anyone, much less an engineer, with all those resources, working on it for years.

FuckButtons•32 minutes ago

There are two major sub-fields in materials science. 1: Making materials with interesting new properties. 2: figuring out how to remove the lead from them.

bigibas123•16 minutes ago

I've heard arsenic also being one of the elements with similar issues

hunmernop•6 minutes ago

Gas itself is poison. Just take a deep huff at the gas station. EVs are the only way to go. At least the pollution is localized, not down every inner city street with exhaust and other vapors.

vorticalbox•2 minutes ago

Maybe you can enlighten me.

My question that once you mined the materials for the car + battery, shipped that somewhere to be built, then shipped that to be sold.

Then you have the added waste battery once it not longer hold enough charge. Is it actually better for the environment?

JumpCrisscross•about 1 hour ago

> countries where leaded gasoline was—or still is—used

Note: it’s now banned for road vehicles everywhere [1].

[1] https://ourworldindata.org/data-insights/every-country-has-n... Algeria, 2021

gilrain•about 1 hour ago

…but is exhausting at volume from most small aircraft you see. I say sadly, as an aviation geek; we can do better!

aftbit•about 1 hour ago

We're working on it, slowly but surely. This has been a known problem for a long time, at least since 2009 if not earlier. GAMI's G100UL was approved as a 100LL replacement in 2022, but there is still some controversy.

Avweb has done a good series of videos on this. There were some real engineering concerns and some typical aviation conservative decision making. But really, it's a tragedy of the FAA fumbling the ball for decades at this point.

https://www.youtube.com/watch?v=9F-WngVMJBQ

https://www.youtube.com/watch?v=Mvse4Xhzwuk

https://avweb.com/features/unleaded-avgas-airport-playbook-l...

https://avweb.com/aviation-news/judge-denies-g100ul-motion/

https://g100ul.com/

Onavo•6 minutes ago

A better way would be to switch to mogas and authorize cheap fuel system retrofits and maybe mandate dual FADECs on engines similar to the ADS B requirements. Your modern general aviation pistons can easily handle mogas.

An even better way would been to encourage the migration to turbines and deprecate pistons entirely.

The new turbotechs regenerative turbines are a lot more reliable (3000 hours TBO).

https://cubcrafters.com/c/2026/07/press-release-cubcrafters-...

Pistons suffer from too many reliability issues (especially if you don't have a MX team on call like a commerical operation).

leoc•about 2 hours ago

Lucas Reilly's Mental Floss article on Clair Patterson https://www.mentalfloss.com/science/environment/clair-patter... is a much better piece. I'll also recycle https://news.ycombinator.com/user?id=heymijo 's old comment https://news.ycombinator.com/item?id=28502232 on this article from its 2021 HN discussion https://news.ycombinator.com/item?id=28500508 (again, what follows is his or her work not mine!):

> Two beliefs became entrenched:

1. that lead is natural to the human body, and

2. that a poisoning threshold for lead existed

Robert Kehoe, working for GM, was the chief advocate for leaded gasoline, and really the only person/lab doing research on lead until Clair Patterson stumbled into it while measuring the age of the earth. [0,1]

A modern equivalent might be if Facebook was the only organization researching social media's impact on society, while being able to set the paradigm/assumptions about said safety for half a century.

So even when Patterson's research was published in 1965, it took time to change the paradigm, and more time to phase out lead's use.

Should anyone want to read a narrative about the intertwined lives of Midgley, Patterson, Kehoe and lead, then this Mental Floss article is a good read. [2]

[0] https://en.wikipedia.org/wiki/Robert_A._Kehoe

[1] https://en.wikipedia.org/wiki/Clair_Patterson#Campaign_again...

[2] https://www.mentalfloss.com/science/environment/clair-patter...

dnemmers•about 2 hours ago

A good Veritasium video on the subject:

https://youtu.be/IV3dnLzthDA?is=MorITIg_MvFrKtvR

wartywhoa23•20 minutes ago

Will anyone be held accountable though?

meristohm•about 2 hours ago

For an animated version of this story, see Cosmos, season 2 (I forget which episode, but it was helpful in teaching about this in high school)

fhdkweig•about 1 hour ago

https://www.space.com/25579-cosmos-recap-earth-age-lead-pois...

https://en.wikipedia.org/wiki/The_Clean_Room

Fricken•about 2 hours ago

We've known about climate change for more than a century, but we're pigs, we don't care.

ErroneousBosh•about 1 hour ago

25 years ago in the UK, leaded petrol was being phased out but still pretty common. The UK Government was giving people grants to have existing cars converted to run on LPG, so they'd only run on a coke can of petrol for a minute or so on startup then switch over to gas.

Catalytic converters? Don't need 'em! There's no CO or unburnt fuel in the exhaust to catalyse because they run as lean as a vegan's dog!

CO2 emissions? Sure, but the stuff is getting flared off as waste at refineries anyway, and we're not going to stop making plastics and fertilisers any time soon, so may as well extract useful work from burning it!

We could have had incredibly clean cities everywhere by now, by simply keeping older cars on the road and adapting them to run on much cleaner safer fuel.

But there was a problem, an absolute bombshell of a problem. The fatal flaw that killed LPG as a road fuel.

It didn't sell new cars. It didn't sell anyone any debt.

So they came up with "scrappage schemes" where you'd get a couple of hundred quid for your old car, it would get destroyed, and then all you had to do was buy a nice new Cleaner Greener Diesel car instead, at some swingeing rate of interest (expect to pay well over twice the sticker price by the end of it - and no, you didn't get the Scrappage Scheme cash if you didn't take the finance package).

And you see how well that worked out.

bluGill•about 1 hour ago

LPG had the same problem as electric cars. In the early years there was no infrastructure and so if you buy one you're an early adopter and you can't actually go anywhere. It took a while to get that infrastructure and now electric cars are useful for most trips. You can use LPG cars to go for most trips in the US even today. However, you better plan ahead because finding a place of fuel is going to require some effort. I had a few LNG stations near me, but they seem to have all been torn out, meaning that never made it.

Gas cars faced the same thing when they first came out but by the time they became used for longer trips there was gas everywhere and in the meantime there was gas at least where you bought the car and so it was good enough for the short trips that bought it for.

ErroneousBosh•about 1 hour ago

That was kind of it. Until maybe five years ago, every branch of Morrison's had two LPG pumps at their petrol stations, as did Asda.

Now it's mostly wholesale fuel suppliers that have pumps.

culi•about 2 hours ago

Yes and the toxic effects of asbestos had been known for thousands of years before popcorn ceilings became a fad

phendrenad2•about 2 hours ago

Same with cigarettes and asbestos. Everyone knew smokers had shorter lives, but the facts were suppressed because it was inconvenient. Everyone knew asbestos was dangerous, but they put it in every single house for decades because "fire was worse".

And don't even get me started on DDT and teflon.

jghn•about 1 hour ago

Asbestos gets a bit of a bad rap. There's an enormous difference from e.g. asbestos tiles and siding in a house vs loose clumps of insulation at mass scale in large factories and such.

But at some point people decided that any asbestos was an immediate ticket to mesothelioma and had to eradicate it altogether.

hyperhello•about 2 hours ago

Cigarette smoking really got going in the world wars, I understand, especially ww2 when the world had manufacturers serving the effort. The custom is dying with the veterans as everyone knows they have a hall pass for it but the rest of us don’t. So smoking was a shorter life but that hardly matters when you’re deployed in theater.

gilrain•about 1 hour ago

> The custom is dying with the veterans

You might want to update your knowledge.

hyperhello•about 1 hour ago

As of 2024, the cigarette smoking rate among U.S. adults is 9.9%, which is an all-time low.

ck2•about 2 hours ago

and still sprayed all around the surrounding land at almost every airport in the USA and worldwide from prop aircraft exhaust despite knowing ANY amount is toxic and irreversible for 30+ years

* https://www.nbcnews.com/business/business-news/leaded-gas-wa...

dnemmers•about 2 hours ago

Very true that only recently, a lead-free substitute was available.

https://g100ul.com/

projektfu•about 1 hour ago

Also UL94 (https://www.swiftfuelsavgas.com/) could be used in many models. Unfortunately some have been previously upgraded to high-compression engines to get a few more horsepower and they can't use UL94.

Some can run on ethanol-free 87-octane automotive fuel, generally the low-compression engines that already can run 80/87 aviation fuel.

80/87 and 100/130 leaded fuels are all but unavailable, but 100LL is ubiquitous. There is a chicken and egg problem to make G100UL and UL94 available, which will encourage its use. Even automotive fuel is hard to find at airports, possibly because they don't want the liability of improper fueling. (100LL is compatible with almost every gasoline aircraft engine, the rest are not.)

The G100UL also may have an issue with being too good of a solvent, although the developer insists that's a libel.

Swift Fuels is also supposed to introduce a different type of 100-octane unleaded called 100R that has had good results in testing but hasn't been broadly approved yet.

It was like pulling teeth from a dragon to get the FAA to move forward with G100UL as I understand it, and then they suddenly approved it for just about anything provided they write a supplemental type certificate. So maybe the same will happen when/if 100R is approved and someone will handle the marketing.

londons_explore•about 2 hours ago

You say that in the past tense... But pretty much every propeller plane worldwide still uses the stuff...

mr_toad•about 2 hours ago

Only in piston engines, which are a minority of propeller planes. Most commercial propeller aircraft are turboprops, and they use jet fuel. And diesel engines are slowly taking over from gasoline in piston engines.

mh-•about 2 hours ago

Correct. For others reading this though: virtually all piston-engine GA aircraft in the US today are still burning 100LL (leaded), and there are nearly 200,000 of them actively flying.

There is a timeline to transition to UL, but very low collective confidence it'll happen by the 2030 goal.

edit: to the commenter that fired off the reactionary reply and deleted it before I could help you. No, not because "[rich people] won't do the right thing." It's because lead is an anti-knock additive for piston engines, and a safe replacement has to go through unimaginable amounts of testing. Once it's certified, one must still figure out scaling production, distribution, etc. Aviation is a very slow moving industry and regulatory environment, which I'm personally thankful for.

PDF (77pgs): https://download.aopa.org/advocacy/2026/2026-01_Draft-Unlead...

tokai•15 minutes ago

People like to point and laugh at the Romans at their use of lead in plumbing and wine. But they were never even close to being as stupid and callous as we managed to be the last 150 years. They are going to be shaking their head at us for thousands of year hopefully.

ChrisArchitect•about 2 hours ago

Some previous discussion:

2021 https://news.ycombinator.com/item?id=28500508

HumanEater•about 2 hours ago

Why is this surfacing up?

weard_beard•about 2 hours ago

hmm good question.

cyanydeez•about 2 hours ago

i'm fairly certain the reason trump was elected is the long tail of leaded gasoline; the timing fits pretty well.

Epa095•about 2 hours ago

Why did these same people vote differently earlier? Does the effect of leaded gasoline show up later in life?

And does not explain all the young men voting for him.

hyperhello•about 2 hours ago

Yes, the psychological effects of environmental lead last a lifetime. No, they didn’t vote differently, they have always gravitated to actors that promise simple solutions and highlight bad blood and animus.

cyanydeez•36 minutes ago

there's no "same people"; leaded gasoline was phased out in the 80's but wasn't finished until around 2000s.

The elderly are simply more engaged and that's what happened.

digitaltrees•about 2 hours ago

They didn’t vote differently. There were a larger number of the greatest generation that were more comfortable with shared sacrifice in service of society and less entitled like the baby boomers are.

vlian2088•about 2 hours ago

now let's dig up some old timey polls and see how the greatest generation felt about the issues you hold dear :)

add-sub-mul-div•about 1 hour ago

It doesn't happen overnight. It takes time to weaken a strong country to the point where a reality show buffoon can become president.

aa_is_op•about 3 hours ago

The guy that invented spent years bed-ridden because of it... yet he still went to trade shows to show it off

chistev•about 2 hours ago

He was bedridden because of Polio.

https://news.ycombinator.com/item?id=48872443

m4d•about 2 hours ago

Anytime Thomas Midgley Jr. pops up, I take the opportunity to re-listen to his episode on the Memory Palace. Wonderful bit of historical biography: https://thememorypalace.us/butterflies/

afzalive•about 2 hours ago

And he also invented CFCs

throw1234567891•about 2 hours ago

“What don’t kill you makes you more strong”.

p0w3n3d•about 2 hours ago

  Ah. We can't patent XYZ let's use ABC.

Such sociopathic thinking.

dbg31415•about 2 hours ago

The Man Who Accidentally Killed The Most People In History

https://www.youtube.com/watch?v=IV3dnLzthDA

> This, my dear friend, is all I can at present recollect on the Subject. You will see by it, that the Opinion of this mischievous Effect from Lead, is at least above Sixty Years old; and you will observe with Concern how long a useful Truth may be known, and exist, before it is generally receiv'd and practis'd on.

> Benjamin Franklin, 1786