Mayak Production Association in 2017 - nobody knows what happened to this day because Russia refuses to release any info about it but it was a huge release - over 100–300 TBq of ruthenium-106.
There's the Nyonoksa explosion in 2019.
Also, we might as well count Hanaford, because of massive amounts of radioactive material released starting in the 40's that continued until the plant was shut down.
Furthermore, the site is costing us $2BN a year and will until roughly 2040. $2BN would be enough to install around 2GW of solar good for roughly 3–6 TWh/year. 450,000–500,000 "homes" worth of additional capacity.
One person died in the criticality accident in a weapons research lab.
Mayak Production Association in 2017 ... it was a huge release
https://inis.iaea.org/records/ndb3s-s5507 "In some regions, over 100 mBq/m³ were measured as one-day means. Although resulting exposure was far below radiological concern"
Comments
You're missing at least three other major events.
Sarov in 1997
Mayak Production Association in 2017 - nobody knows what happened to this day because Russia refuses to release any info about it but it was a huge release - over 100–300 TBq of ruthenium-106.
There's the Nyonoksa explosion in 2019.
Also, we might as well count Hanaford, because of massive amounts of radioactive material released starting in the 40's that continued until the plant was shut down.
Furthermore, the site is costing us $2BN a year and will until roughly 2040. $2BN would be enough to install around 2GW of solar good for roughly 3–6 TWh/year. 450,000–500,000 "homes" worth of additional capacity.
What is the measure of major? The INES scale? https://en.wikipedia.org/wiki/International_Nuclear_and_Radi...
One person died in the criticality accident in a weapons research lab.
https://inis.iaea.org/records/ndb3s-s5507 "In some regions, over 100 mBq/m³ were measured as one-day means. Although resulting exposure was far below radiological concern"
Nuclear powered cruise missile.
https://madihilly.substack.com/p/hanford-what-a-waste
The aggravating factor is that in the event of an incident there’s simply not a feasible means of evacuation.