lead poisoning as a hazard for shooters
I found this information in one of my files.
It came from material developed by the American Society of Law Enforcement Trainers (ASLET):
Most of the issue with lead ingestion comes from shooting on INDOOR RANGES. The ones outdoors have enough ventilation and natural "cleaning" factors to reduce the lead ingestion levels pretty easily.
Lead ingestion by shooters comes from 4 major sources, not necessarily listed in order of significance:
1. molten airborne lead particles generated during firing, melting off the back of lead bullets, and inhaled
2. particulate lead absorbed when touching/handling lead bullets
3. lead primer byproducts inhaled as a result of shooting
4. molten lead particles inhaled during casting lead bullets
Most of us don't cast our own bullets, so we can ignore #4 above as a source of lead ingestion. However...source #3 above is by FAR the BIGGEST CONTRIBUTOR to lead ingestion by shooters. (It's something like 10 times greater than the next highest source!!)
The reason here is that, most "non-corrosive" primers contain lead styphnate or something similar. When lead primers ignite, the chemical reaction creates a lead salt that is airborne, and worse yet, it hydroscopic, like all salts. It picks up moisture easily.
Guess what's in your throat and lungs? Lots of moisture, waiting for the lead salt to combine with it. Instant absorbtion.
The solution---RIGOROUS cleanliness on the range, and care when shooting indoors:
1. Don't smoke, eat, or drink on the range. You are ingesting just that much more lead in doing so.
2. Don't shoot on an indoor range that does not ventilate by pulling combustion products AWAY from the shooting line. If you MUST shoot on a range with poor ventilation (Lord knows why), use an OSHA approved mask.
3. DON'T SWEEP with a broom on an indoor range. The floor is COVERED in lead salts, and brooming puts them back in the air.
4. Once you are done shooting on an indoor range, wash your hands immediately. If you can take a shower and change clothes ASAP, all the better.
5. Lastly, DON'T go to bed after shooting indoors until you take a shower and wash your hair. You hair traps lots of lead particles that will transfer to your pillow, and then to your mouth/nose while sleeping.
People I know who have followed the above rules can sucessfully shoot indoors A LOT (like IPSC practice multiple times per week) without having excessive lead levels.
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To reduce lead in your body, your doctor may recommend chelation therapy. In chelation therapy, you receive a chemical called ethylenediaminetetraacetic acid (EDTA) through injections in your veins (intravenously). The EDTA binds with the lead so that it's excreted from your body. Depending on your lead level, you may need a large number of treatments. And the therapy may not reverse damage that already has occurred in cases of severe lead intoxication.
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At levels above 80 µg/dL, serious, permanent health damage may occur.
Above 50 µg/dL, serious health damage may occur.
At lead levels between 30 and 50 µg/dL, health damage may be occurring, even if there are no symptoms.
From 20-30 µg/dL, regular exposure is occurring. There is some evidence of potential physiologic problems.
From 1-20 µg/dL, lead is building up in the body and some exposure is occurring.
6 micrograms is the typical level for U.S. adults. Some exposure is occurring.
Normal blood lead levels for children are 0-10 µg/dL with 3 being typical.
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The following is a partial list of common symptoms of lead poisoning, and symptoms that appear in any individual will vary. Furthermore, a lead level that produces only moderate problems in one individual may prove lethal to another:
1. Loss of memory, and difficulty in concentration. This is frequently the first symptom seen.
2. Fatigue. This can become profound and incapacitating.
3. Irritability and aggressiveness.
4. Loss of sexual interest. Impotence.
5. Insomnia. (Which greatly complicates the fatigue.)
6. Depression.
7. Headaches.
8. Neurological symptoms, such as hand twitching.
9. Encephalopathy. This is the medical term for major brain dysfunction (actually, all of the above are symptoms of central nervous system problems). This can manifest itself as loss of function or paralysis in a limb, confusion, disorientation, loss of coordination, or the symptoms of several forms of insanity. (Lead poisoning probably contributed to the insanity of several of the Roman Ceasars, and contributed to the fall of the empire. The Roman upper classes boiled their wine in lead-lined pots. This sweetened the wine, and made it resistant to souring by yeast. Bones recovered from graves of Roman nobility have shown phenomenal lead contents.)
10. Elevated blood pressure.
11. Digestive difficulties and abdominal pains.
12. Weight loss.
13. Joint pains, particularly in the joints of the long bones, like the wrists.
14. Anemia.
15. In women, menstrual irregularity and decreased fertility. (Again, lead poisoning may have been responsible for the documented dramatic decrease in fertility among the Roman nobility and upper classes.)
16. Kidney damage and/or liver damage.
17. Sore or bleeding gums around the margin of the gum and tooth.
18. In children, retarded intellectual development, behavioral problems, as well as most of the other problems listed above.