Beryllium disease is a big issue, and the US DOE makes a good show of taking it seriously, see https://energy.gov/ehss/chronic-beryllium-disease-prevention-prog

Beryllium disease is a big issue, and the US DOE makes a good show of taking it seriously, see https://energy.gov/ehss/chronic-beryllium-disease-prevention-program-10-cfr-850 https://energy.gov/ehss/chronic-beryllium-disease-prevention... Unfortunately tons of people were exposed before the risks were at all understood and the health effects can be pretty bad.