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New research on the risks of lead exposure from bullets used in big game hunting
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- Опубликовано: 23 авг 2022
- The lead in some bullets used for hunting deer, moose, and elk is toxic to the humans who eat the harvested meat and to scavenger animals that feast on remains left in the field.
A team of researchers from the Canadian Light Source at the University of Saskatchewan (USask) and the College of Medicine at USask has for the first time used synchrotron imaging to study both the size and spread of bullet fragments in big game shot by hunters. Their findings were published today at 2pm E.T. in PLOS One.
Like a scene right out of the hit television series CSI, the research team fired bullets into blocks of ballistic gelatin - the same material used by law enforcement agencies for ballistic testing - and examined the resulting fragments using synchrotron imaging.
The BMIT beamline at the CLS enabled them to distinguish lead fragments from other materials used in bullets and bone fragments. To better simulate hunting, the team encased deer bone within the ballistic gelatin (which is a similar density to flesh).
Dr. Adam Leontowich, CLS Associate Scientist and lead author on the study, said the team found the lead fragments were significantly smaller than regular medical X-ray imaging has previously shown, and considerably more widely dispersed.
“I wasn’t surprised that bullets can produce hundreds of lead fragments,” said Leontowich, who is a hunter himself. “But I was surprised to see that the fragments can go down to the size of a single human blood cell.”
To date, researchers studying this issue have relied on medical radiography, which cannot distinguish lead from other materials used in ammunition or accurately measure fragments that small.
The researchers hope their findings will convince big game hunters to switch to bullets made of non-toxic materials such as copper and to save the lead bullets for target practice.
Some countries like Sweden and Denmark, as well as the state of California, have banned lead rifle ammunition for hunting. In Canada, Nova Scotia and Prince Edward Island included warnings about the health and environmental risks of lead bullets in their 2021-22 hunting regulation handbooks.
“There are other forms of rifle ammunition on the market made of non-toxic materials like copper that work just as well,” said Leontowich. “You don’t have to buy a new rifle to use them. And you can enjoy that moose steak or elk burger and not have to worry about ingesting lead fragments or about the fragments spreading into the environment.”
Leontowich AFG, Panahifar A, Ostrowski R (2022) Fragmentation of hunting bullets observed with synchrotron radiation: Lighting up the source of a lesser-known lead exposure pathway. PLoS ONE 17(8): e0271987. doi.org/10.1371/journal.pone....
The Canadian Light Source (CLS) is a national research facility of the University of Saskatchewan and one of the largest science projects in Canada’s history. More than 1,000 academic, government and industry scientists from around the world use the CLS every year in innovative health, agriculture, environment, and advanced materials research.
The Canada Foundation for Innovation, Natural Sciences and Engineering Research Council, Canadian Institutes of Health Research, the Government of Saskatchewan, and the University of Saskatchewan fund CLS operations.
www.lightsource.ca/public/new...
It's interesting to see there is more lead left in game than originally understood. However, once the bullet is removed, what kind of remaining lead mass can we expect? If the lead samples found are as small as a single blood cell, It seems to me like we'd be looking at lead mass in the micrograms. For a 100-200lb animal, I'd be curious to know if this level of contamination is a genuine concern. Unless you're shooting boutique ammunition or 45-70, most retail ammo has bullets in the 170gr or below range of lead.
Which is going to be worse, lead bullets, or chronic wasting disease ( CWD) ?
I also wonder if lead bullets pose the same level risk as say a crappy diet leading to heart disease, cancer, diabetes etc. Lead bullets are so far down the totem pole insofar-as how likely they are to poison you, that this really makes me wonder if this research has been peer reviewed, and who funded it.
Hi Benjamin, thanks for taking interest in this study. Here's the link to the full paper: doi.org/10.1371/journal.pone.0271987
The sources of funding are listed in the top left corner of the second page.
Yes, PLoS One is a peer reviewed journal. The paper was reviewed by two reviewers and a journal editor. Not only is PLoS One open access so everyone can read the research, they also recognize the benefits of transparency in the peer review process. The content of peer review and author responses are published alongside the final published article. All of the raw data for the study is included in a Canadian online repository FRDR.
Your a radical bigot, I only shoot non lead bullets because i care about my health *as I finish off a box of donuts * 😂
Pick your Poison I guess. Everything even water is toxic , what makes things safe is Dosage
Those other bullets are not as effective on big game. There are not bad for smaller game, but they are normally to lightweight to go deep enough on big game. They are also faster, which can be a good thing for long range, but can cause the bullet to break down too early and not be able to reach vitals organs, making the animal suffer unnecessarily, which is unetical imo . And how many hunter have actually died from lead poisoning in the las 100 years? 🤔
not 1, I can promise you
Dont forget this too! Most rifle manufactures do not make barrels capable of shooting decent weight solid copper bullets. Twist rate is the limiting factor and just about every copper bullet manufacturer knows this and publishes minimum twist rates for their bullets. You never hear or read this from these anti lead types.
@@JimWooddell Hi again. In the paper, you will find details of the ammunition and rifle used including the twist rate, and a discussion of twist rates and accuracy with a reference near the end of the paper.
Hi Eliezer, thanks for taking interest in this study. Here's the link to the full paper: doi.org/10.1371/journal.pone.0271987.
Multiple studies have been done comparing the effectiveness of lead-core vs copper bullets. (Several are cited in the paper.) It also compares the performance of the two bullet types. The lead author of the paper, our colleague, suggested listening to experienced outdoorsman Ron Spomer's take on this, as he has hunted all types of game with them: ruclips.net/video/We6OM03wSEI/видео.html
Using gel and speculating a direct correlation to meat is a little naive and unscientific. This sounds more like a paid campaign add.
If the test had been fully vetted using actual meat it might be more believable.
Who funded this "test"?
FUNDED by FUDDS, CHADS, and KARENS,
Hi, thanks for taking interest in this study. Here's the link to the full paper: doi.org/10.1371/journal.pone.0271987.
The sources of funding are listed in the top left corner of the second page.
Ballistic gel is used by law enforcement agencies and all major bullet manufacturers as valid tissue simulant. The researchers took it one step further by adding in some white tail deer femur bones into some of the gel samples. The authors are also working on some additional research using animal tissue samples, so stay tuned for an upcoming paper.
@@enolwlfe😂😂😂😂
Nothing is said what type,brand,caliber of bullet you used can you let the public know 🤷🏼♂️
trickery faucci scientist people won't let that happen...
In the video description, there is a link to the full paper that you can view and download. It has all the details from the study.
Who funded this research?
Normally is the government 🤫
Hi Jim, thanks for taking interest in this study. Here's the link to the full paper: doi.org/10.1371/journal.pone.0271987
It is an open access publication so anyone can read it. The sources of funding are listed in the top left corner of the second page.
There's probably more heavy metals in baby food than there is in elk meat. How about using your fancy machine for that research??
Lol! There is certainly more sugar....And that WILL kill you!
these people probably still haven't figured the science of wiping there ass, ya know toilet paper and wet wipes the proper way...
HEY!! Those babies were asking for toxic shit food with all the crying, they had it coming
Ya'll ever hear of copper toxicity? It is a real thing too.
Well the idea is to ban everything. Once they ban lead, they will bring the copper issue. 😶
@@Elvci02 Yeah. He said none toxic copper. This is bad biased research....and actually stuff we already knew.
That's nothing, my ex is even more toxic
@@oscarbear7498😂