Remember when the greens were after lead ammo

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Yes, the fact that birds grind the materials in their crops increases the surface area for digestive acids to dissolve some of the ingested lead. If not for the acids and grinding, little of the lead would be absorbed.

Not to be nit-picky but the crop is intended as a temporary storage location for food. It is also softens the food before going to the stomach and gizzard to be processed and further broken down. The gizzard is where the gravel and sand resides to assist in this grinding and breaking down, not in the crop:

http://fsc.fernbank.edu/birding/digestion.htm

Dan
 
If anyone has ever been on a bird count they would know that it is less than scientific. Every other study I have read indicates that eagles in particular are on the rise. If you have ever been to the Lake Erie shoreline you would see scads of them.
Pot, meet kettle.

Also, which studies?

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i almost wanna make me a lead-tea, now :)


(i do understand there´s a big allergy vs over-regulation
in the US. But there also is a big tendecy to go over the
top when it comes defending a position at all cost.)
 
Heavy metal poisoning is a problem. Metal tooth fillings contain mercury and it is a problem too.

I think Vermont banned lead sinkers 20 years ago. NY prevented a shooting range I used 15 years ago from using lead shotgun loads....
 
It's kinda funny everyone is getting bled dead by a thousand cuts when in all liklihood (Steven Hawkings says it's a 100% certainty) we'll do our own selves in with an instantaneous flash.
 
While “A paint chip containing lead the size of my thumb nail is enough to kill a child” is probably not accurate, an ingested lead charm bracelet medallion has caused death.

http://pediatrics.aappublications.org/content/118/6/2548.long

Abstract
A 4-year-old black boy was admitted to the hospital with vomiting, low-grade fever, and dehydration that were thought to be caused by viral gastroenteritis. He proceeded over the next 12 hours to rapidly deteriorate with brain herniation leading to brain death. The ultimate cause of death was found to be acute lead intoxication from a swallowed foreign body.
 
I've always wondered about gunshot victims who have unrecoverable bullets left in their bodies; does any of the lead circulate though their body over time?
 
Whether or not a retained bullet causes lead poisoning depends mostly on where the bullet is. Usually bullets in soft tissue form an inert cyst. Bullets left in bone or in the joints can cause plumbism.
 
Not true. Although the main cause of lead poisoning is caused by dust, ingesting lead shot/bullets can poison just the same. A paint chip containing lead the size of my thumb nail is enough to kill a child if all ingested at once. So, you can imagine that it wouldn't take much at all to kill an animal.

Paint chips don't contain elemental lead. They contain a very toxic cousin called lead acetate. Children used to eat paint chips because lead acetate was very sweet.

Ludvig von Beethoven, Pope Clement II, Albert Christoph Dies.. etc all died from lead acetate.

Back in the middle ages people used lead based pewter plates. That's fine... until you start eating lots of high acid tomatoes. And this is why tomatoes were viewed as poisonous for centuries.


The point is lead can be very bad under some conditions and no big deal under others.
 
Think the Roman Emperors had running water delivered in lead pipes; could explain a few things about some of the more infamous?
 
^
They also added lead to wine to sweeten it.
Yes, although I think I read they didn't add lead directly, but stored wine in vessels that had lead in them, this would over time give wine a very special sweet taste (due to wine acids reacting with lead).

I wonder if there were any studies of the bones done over time to see if they had high enough lead content to cause mental issues. Although I think their behavior had more to do with having unlimited powers in a society that didn't value human life, plus childhood experiences (if you read about the way Caligula was brought up, no wonder he had mental issues and was a big time hater of people).

Anyway, back to the original topic. Unfortunately, there are "green" zealots that would gladly send everyone back to the stone age to prevent a rare species of frogs from dying out, and then there are "anti-regulation" zealots that would gladly have us live in a pool of acid water covered by poison smog in the name of free enterprise. The truth is lost in between.
 
The thing I never understood about lead polution is the fact that lead comes from the ground in the first place. They literally dig it up. Shooters just return it to the Earth.
 
When did you last see the natural lead on the surface ? And how widely distributed was it ? AFAIK it typically exists in the form of lead ore that needs to be dug up. Not pure lead.

Radioactive materials are also found naturally, but "returning them to the earth" isn't such a great idea.
 
dental fillings also contain heavy metal (mercury). Uhg!

Are we worried more about lead shot from a shotgun, or are we also including bullets shot from rifles?

In the field, shotguns are fired often, however, rifles are very rarely fired except maybe 22lrs which cantain only 40 gains or so of lead.
 
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