So wild and sad, reading the article and discussing the subject with a “knowledgeable entity”. (It’s great having smart “friends” that don’t mind when you pester them with rabbit hole questions at 3am.)
The “Erin Brockovitch” (hexavalent chromium groundwater poisoning) story in Hinkley CA describes harm that went on for a couple decades. The underground plume spread about 8 miles, affecting a couple thousand people.
The Peak District case was a whole mining region exposed through dust and fumes for maybe _850 years_, with the airborne lead spreading so far it showed up in Alpine ice and Scandinavian lakes.
Dust brought in to homes by workers, and fumes over the whole town and countryside, bringing sickness, early death, craziness and lower intelligence to men, women and children. And nobody could figure it out.