A little info on lead



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Offline Paulus

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A little info on lead
« on: January 19, 2019, 09:36:46 PM »
I found this very interesting, these guys did a 4.5 ton lead pour for a keel. So this is how this subject came up for them. I found what the young lady had to say about how lead interacts with soil was very interesting. 

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Offline RedFeather

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Re: A little info on lead
« Reply #1 on: January 20, 2019, 03:05:58 PM »
Virginia Tech conducted a study of soil contamination and it was found that oxidation (the white stuff coating old bullets, etc), forms rather quickly and then stops. This tends to encapsulate the lead. I have Civil War bullets that have oxidized and look no worse than oxidized modern bullets. So, spent pellets should not contaminate soils directly. If a bird eats them for use in their craw to grind up food, that's a different story. Ditto scavengers eating dead birds or squirrels where there was no pass-through.

Offline Paulus

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Re: A little info on lead
« Reply #2 on: January 21, 2019, 12:41:03 AM »
She was saying that lead binds so tightly to soil, that it was very very hard to separate. That it was hard for crops to be effected by chunks of lead in the soil.
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Online Wayne52

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Re: A little info on lead
« Reply #3 on: January 21, 2019, 05:03:31 AM »
Many times if I'm metal detecting in a field where there use to be a farmstead I'll find old lead ingots or partial ingots.  Lead was pretty much a staple back when those old farms were built.
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Offline anti-squirrel

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Re: A little info on lead
« Reply #4 on: January 21, 2019, 10:26:30 AM »
I wouldn't be surprised if the soil acidity or alkalinity had an impact.  It's all basic chemistry.  Lead is toxic- there's no question about that.  It's how it binds and what the resultant compounds are that matter.
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Offline Marc In Iowa

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Re: A little info on lead
« Reply #5 on: January 21, 2019, 11:31:10 AM »
... a 4.5 ton lead pour for a keel ... how lead interacts with soil was very interesting.

Thanks very much for posting this!

I don't shoot lead on my 5 acre property (other than into a trap) because of lead concern. This was reassuring in many ways. I do shoot lead at a Field Target outdoor site in Wisconsin. I'll worry less about that having seen this video.
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Offline Mole2017

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Re: A little info on lead
« Reply #6 on: January 21, 2019, 03:05:51 PM »
It is interesting that the Flint water debacle was the result of improper water treatment after 2014. The pipes were older than that, but when they switched water sources, chlorine levels went up without other treatments to reduce corrosion. Everybody saw the rusty water that resulted, then someone figured out the lead concentrations had gone up too.

So, your acid rain would have to get pretty strong to start moving any lead--but only if the acids in acid rain can leach lead like high chlorine can. Come to think of it, I haven't heard or read much about acid rain. For a while there was plenty of hand wringing about what it was doing to trees and fish, but have the acid levels dropped back any?
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Offline Mole2017

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Re: A little info on lead
« Reply #7 on: January 21, 2019, 03:08:36 PM »
Well, let me answer my own question. Looks like there has been some serious progress. Check out that before and after chart :) https://www3.epa.gov/airmarkets/progress/reports/acid_deposition_figures.html
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Offline Paulus

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Re: A little info on lead
« Reply #8 on: January 21, 2019, 03:26:19 PM »
... a 4.5 ton lead pour for a keel ... how lead interacts with soil was very interesting.

Thanks very much for posting this!

I don't shoot lead on my 5 acre property (other than into a trap) because of lead concern. This was reassuring in many ways. I do shoot lead at a Field Target outdoor site in Wisconsin. I'll worry less about that having seen this video.

That is the same thoughts I had after watching this. That is why I posted it. 

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If you havent tried RWS pellets in a while give them a try.

Offline RedFeather

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Re: A little info on lead
« Reply #9 on: January 21, 2019, 03:30:13 PM »
To Marc in Iowa and any others who shoot on their property. If you plan to sell your place, remove all signs of shooting first. While spent ammo shouldn't be a major concern (unless you have a well-used berm), it might turn off potential buyers.

Acid rain is a real problem. It's eroding ancient buildings such as the Acropolis, and affecting shell formation in juvenile shellfish.

Online Wayne52

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Re: A little info on lead
« Reply #10 on: January 21, 2019, 03:39:05 PM »
When I do find the lead metal detecting I'll keep it, only the really white stuff though cause the dull isn't pure.  I've found musket balls that were pure white and after I cleaned them in hot peroxide you could actually see the imprint of the patch in them.
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Offline ranchibi

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Re: A little info on lead
« Reply #11 on: January 21, 2019, 06:24:10 PM »
Paulus, nice insight, thank you!
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Offline Paulus

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Re: A little info on lead
« Reply #12 on: January 21, 2019, 10:57:46 PM »
Paulus, nice insight, thank you!

You bet....   
  • The dry side of Washington State.
A very pleasantly surprised member of the Daisy 880 club. Between my typing and auto correct I cant communicate.

If you havent tried RWS pellets in a while give them a try.

Offline Insanity

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Re: A little info on lead
« Reply #13 on: January 21, 2019, 11:30:59 PM »
Our direct contact to pellets is mitigated buy a graphite coating. Lead still harmful but that discoloration on your fingers is mostly graphite ya some lead dust is created in a tin but I am not sure how easily it is absorbed into the bloodstream.
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Offline lizzie

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Re: A little info on lead
« Reply #14 on: January 21, 2019, 11:56:47 PM »
quote author=Insanity link=topic=153690.msg155692800#msg155692800 date=1548127859]
Our direct contact to pellets is mitigated buy a graphite coating. Lead still harmful but that discoloration on your fingers is mostly graphite ya some lead dust is created in a tin but I am not sure how easily it is absorbed into the bloodstream.
[/quote]



From the MSDS data....Lead (except for certain organic lead compounds not covered by the standard, such as tetraethyl lead) is not absorbed through your skin. When lead is scattered in the air as a dust, fume or mist it can be inhaled and absorbed through you lungs and upper respiratory tract.

Recently, I posted the MSDS info on lead, and hopefully it will put a few minds at ease.
Contact with lead via handling is safe.

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Offline mattd0401

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Re: A little info on lead
« Reply #15 on: January 22, 2019, 08:07:55 AM »
Just don't put your fingers in your mouth after a day of shooting or eat anything until you wish your hands. Smokers might want to hold off as well, but then again lead is probably the least of their concerns. If you cast your own pellets you might want to wear some sort of respirator or use a fume hood when melting. At the very least you should be outside or in a well ventilated space.
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Offline Pellgunfun

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Re: A little info on lead
« Reply #16 on: January 22, 2019, 10:17:56 AM »
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Offline Insanity

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Re: A little info on lead
« Reply #17 on: January 22, 2019, 06:54:58 PM »
quote author=Insanity link=topic=153690.msg155692800#msg155692800 date=1548127859]
Our direct contact to pellets is mitigated buy a graphite coating. Lead still harmful but that discoloration on your fingers is mostly graphite ya some lead dust is created in a tin but I am not sure how easily it is absorbed into the bloodstream.



From the MSDS data....Lead (except for certain organic lead compounds not covered by the standard, such as tetraethyl lead) is not absorbed through your skin. When lead is scattered in the air as a dust, fume or mist it can be inhaled and absorbed through you lungs and upper respiratory tract.

Recently, I posted the MSDS info on lead, and hopefully it will put a few minds at ease.
Contact with lead via handling is safe.
[/quote]

I will have to look up that post and read it. We could have lead dust issues after the pellet is shot but a lot of air guns seem to employ a moderator or LDC. How much dust is created is at question. Then you can determine say my attic range where I shoot currently 100 or so rounds then I am done. I may have more harmful exposure to the insulation than the lead. From what I understand in my case the insulation will stay in my lungs but the lead will make it to my brain and it could take a million pellets shot in my attic range to get any effect but after 100 hours I could have respiratory issues from inhaling fiberglass.

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Offline Insanity

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Re: A little info on lead
« Reply #18 on: January 22, 2019, 06:56:39 PM »
Now I ask ya, who doesn't love a beautiful nerd.

I tell ya what I do and I have all of Ohio's hottest librarian as my wife.
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Offline lizzie

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Re: A little info on lead
« Reply #19 on: January 22, 2019, 10:53:07 PM »


I will have to look up that post and read it. We could have lead dust issues after the pellet is shot but a lot of air guns seem to employ a moderator or LDC. How much dust is created is at question. Then you can determine say my attic range where I shoot currently 100 or so rounds then I am done. I may have more harmful exposure to the insulation than the lead. From what I understand in my case the insulation will stay in my lungs but the lead will make it to my brain and it could take a million pellets shot in my attic range to get any effect but after 100 hours I could have respiratory issues from inhaling fiberglass.



I would be REALLY surprised if there was any significant risk associated with shooting air guns.
Maybe PB's, due to the make-up of the primer, and the exposive process required for expulsion of the bullet.
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How do you word it... "Air Guns" or "AirGuns"?
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