One Curie is the radiation of a gram of radium. In 1957 this place emitted millions of curies. Not counting before or after.

Damned interesting: [https://www.damninteresting.com/in-soviet-russia-lake-contam...]

Chelyabinsk (that one) is nearby. [https://web.archive.org/web/20140204004304/http://wentz.net/...]

For those that don’t like videos, here is the Wiki.

https://en.m.wikipedia.org/wiki/Kyshtym_disaster

For those who own a computer, here is the link to non-mobile Wikipedia:

https://en.wikipedia.org/wiki/Kyshtym_disaster

I find it frustrating that, in 2021, Wikipedia still needs mobile and non-mobile URLs.

Responsive design. Detect the device and scale content appropriately.

There is an interesting documentary film, "City 40" (2016), about the people who live in Ozersk, the town near the location of the Kyshtym disaster. The documentary features archival and hidden camera footage (because the area is heavily guarded and mostly closed to foreign journalists), as well as interviews with a number of local residents, including Nadezhda Kutepova.

https://en.wikipedia.org/wiki/City_40_(film)