Arsenic is naturally present in soil and in a semi desert or desertified area, people will come in contact with it more than those who live in wetter climes. I’m going to guess that the Uranium contact is from A-tests?
No, not so much that... There is a lot of uranium in the water (and soil) in that region due to natural uranium deposits. A few big uranium mines in the area, many small ones and thousands of little prospects with uranium minerals, but not enough to mine profitably.
Here’s an idea. Maybe they should go to school and do their homework like they should and get off the res.