Finally got around to testing my lead level. It was 7. What I read says that's below any action level other than common sense methods to further limit my exposure.
From this forum's experts I've learned and then corroborated that the primer dust is the number one concern for someone like me.
I no longer dry tumble; I wet tumble my brass. I have a 1050 and have a tube that diverts the primers into a milk jug for disposal. For the not-rare loose primer that ends up on my 1050/Mark7 plate, I no longer use a brush or compressed air to clean off the surfaces (to avoid driving any lead dust into the air). Instead I use a central vacuum in my garage to remove the debris, and then empty the container with care outside (holding my breath, standing up wind by my trash cans), then rinsing it clean with water outside.
Probably less relevant is my decision to forego loading exposed lead bullets. That was more just being spoiled and making things easier on the automated press.
I also shoot indoors about 3-4 times per month and moved recently to a newer facility that looks to be cleaned better. I asked the staff about how they clean the floor and they recoiled in horror when I asked if they dry swept the range at all. They wet mop, and had inspectors confirm their air management was up to snuff. They used squeegees to divert brass but there are no brooms to be seen. I'm assuming that's SOP for ranges in the US now but who knows.
What else am I missing?
Thanks!
C