Since my April post I found more data on where we get exposed to lead, and unfortunately, the greatest exposure comes from shooting lead bullets.
The table from the report below shows that each round from a 158 L in a 38 Spl M10 puts out an average of 5600 micrograms of lead.
If you remember the OSHA limit is 50 micrograms per cubic meter.
LP stands for lead primer, they also tested lead free primers. Lead primers put out a surprising amount of lead in the air.
The lead in the air level dropped significantly using jacketed bullets.
I believe this is why indoor range users report high lead levels, people are pumping an amazing amount of lead with each shot.
I think using jacketed bullets, plated bullets, and if you can find lead free primers, will reduce your lead exposure.
Assuming you stay away from indoor ranges.