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In a way that results in higher (or even similar?) exposure to lead compared to when everybody had cars running on it? For your average person? I'm gonna need h
by Sakos 4y ago
In a way that results in higher (or even similar?) exposure to lead compared to when everybody had cars running on it? For your average person? I'm gonna need hard numbers for that.
Okay, for the people who can't read between the lines and just resort to downvoting instead of actually being useful in a conversation.
1) The article is about childhood lead exposure on adult personalities.
2) He makes a comment about aviation and its current use of leaded gasoline ("contributes to higher than healthy lead in our environment") with the warning "this isn't a solved issue of the past".
3) This implies that the aviation industry and its use of leaded gas is in any way comparable to what we had before when everybody had daily contact with leaded gas.
4) Nobody has yet provided any evidence of the fact that aviation results in any appreciable exposure to lead for your average citizen.
5) This matters because the original article is not about environmental impact. It's about childhood exposure.
How is this so hard? I seriously question the ability of your average HNer to make logical deductions.
- throwaway0a5e 4y agoNo, not even close. To portray otherwise is right up there with the people screeching about radiation exposure on the order of spending a day working outside. The lead exposure as a result of stuff your daily life (which is mostly a reflection of the history of where you live and work) contributes far more than avgas in the atmosphere. Unless you live downwind of a busy GA airport and have managed to get all other
- dEnigma 4y agoNo, of course not. But that's also not what OP claimed.
- wlesieutre 4y agoThey said "higher than healthy" not "higher than when everyone's car ran on it"
- AnimalMuppet 4y agoOK, but there's still the same question. What is the "healthy" ppb level of lead in air, and what is the concentration from avgas? Also, here's a plane flying at 4000 AGL. How much of the lead it puts out is going to affect the lead level at ground level? (I mean, it can raise the ppb of the entire atmosphere, which eventually affects everyone, but that's a huge mass to affect.) It might matter for those living downwind and close to heavily-used private plane fields, though.
- munk-a 4y agoJust to clarify on #3 - from my original post: "while much smaller relative to everyone's car running on it". I didn't imply that the lead levels were equal or near to levels when everyone's car was running on it - I tried to state the exact opposite but, I'd clarify, the levels of lead in our environment is still well elevated from what it was prior to the introduction of leaded gasoline and lead is a heavy contaminant like mercury - it accumulates in your body and causes cumulative damage. And to point #5 - the levels present in our environment directly contribute to how much childhood exposure you'll suffer.