Where's the control group in this study?
Seems like leaded fuel helped IQ since it was eliminated from autogas, and our IQs have gone down since.
Also, there's a correlation between the decline of pirates and global warming.
The basic premise does not seem in the least controversial. Lead is a persistent toxin with mostly neurological effects. No one is really arguing about that.
The question is only: How much? How much is it really affecting us? $1.5B out of an economy of $17T? Seems a little high to me, but it's in the realm of conceivable.
Doesn't really matter. The net gain from piston engine aircraft is higher than $1.5B each year, so if we're looking at it that way, it's still a win. But really, since we're on the path to unleaded already and dates have been aggressively set, there's nothing really actionable in the data. We're getting to unleaded avgas as fast as our government knows how. It tells us that there's an effect, it's measurement shows that we should do something about it. But it does not show an effect large enough to end all non-essential piston flight.
No, it tells us there's people loud enough to ***** about it. Not that there's actually any effect.
"To obtain their results, the researchers developed an inventory of general aviation emissions across the continental U.S., and modeled its impact on atmospheric lead concentrations using the Community Multi-Scale Air Quality Model (CMAQ). Based on these GA-specific contributions to overall atmospheric lead levels, they quantified associated IQ deficits nationwide and their annual economic impacts."
Now... I love me some science as much as the next guy and I'm willing to sign off on being able to develop a decent model for quantifying exhaust and the lead contained within that exhaust. But how do you quantify a nationwide IQ drop? And how do you associate that drop specifically with leaded GA fuel exhaust? Seems like that's reaching a bit.
Agreed. Measuring IQ, an already questionable term, and then somehow equating that to a dollar loss? Too many fudge factors there.
Not that I'm crying about not having to deal with lead in my fuel in the near future!
No, it tells us there's people loud enough to ***** about it. Not that there's actually any effect.
There have been *tons* of studies. You can click through to one from the article posted and you can find a bunch more by doing a google scholar search. There is no safe dose of lead and there is no reasonable question on that subject. You are barking up the wrong tree on this one.
I know that a 180gr. dose of lead at a high rate of speed is deadly too. Maybe I should publish something on that.
How is the general populous ingesting all this lead we are supposedly dispersing on them? Where does lead come from originally? Where does it end up?
Also funny how it's ONLY the tiny dangerous aircraft that is the issue here. Not the millions of pounds of it used in the electronics industry every year.
There's a mogas crowd? Who knew?
MIPA
Mogas International Pilots Association
I think reading useless "studies" is making people stupider.
Everybody seems to confuse facts and factually based data with "opinions" and "made up BS"
You know what they say: "remember only half of what you see and nothing that you hear"
What I meant by "everybody" was in reference to the sheeples of the world who seem to be scared of everything around them. Like all the airplanes dumping fuel on the great people of Arizona! Pilots know better and are smarter than that, right?Which is this entire thread. We're just chewing the fat. There's no one in this thread, including me, who's an authority on a single lick of this. It's fun.
What I meant by "everybody" was in reference to the sheeples of the world who seem to be scared of everything around them. Like all the airplanes dumping fuel on the great people of Arizona! Pilots know better and are smarter than that, right?
On that particular item, yes (well, sort of -- a lot of people DO dump fuel on the ramp, just not at those quantities).
But there are definitely severe OWTs that pilots sometimes subscribe to. Like the assumption that more gadgets are always better.
Back in the 50s, all the cars were burning leaded fuel. Now, it was a health risk(more to those handling the fuel probably than bystanders) but people weren't dropping like flies either.... and at lot more people are around a lot more cars than piston airplanes.
Now I have not done any studies nor do I have any degrees in this area but to apply a bit of common sense..
Back in the 50s, all the cars were burning leaded fuel. Now, it was a health risk(more to those handling the fuel probably than bystanders) but people weren't dropping like flies either.... and at lot more people are around a lot more cars than piston airplanes.
That said, put a mogas pump on my field and I'll buy the STC.
I was raised on a steady diet of asbestos burgers with a side of Pb paint chips (kids will eat anything!) and I turned out all right...