On a side note, Fluorine is bad stuff but I believe it doesn't have a long lifespan so any impact would be immediate or not at all
One of the test samples he opened (unexpectedly) had a flourine compound in it that strips calcium from bones… he jumped in the lab shower which sets of an alarm when activated, which leads to lab evacuations and an emergency team in hazmat gear arriving
Factory workers working in dangerous conditions and losing their lives is unfortunate, but their effects hurting/killing the general population (a-la Bhopal Gas Tragedy) should not be legally possible.
I've done some work with the public data from the US Occupational Safety and Health Administration (OSHA). OSHA does a great job of making detailed data on inspections and accidents public. If memory serves me correctly, it turns out there are about two deaths per day from work-related causes in the US...