How widespread would fallout from a nuclear bomb be?

[Emily]

Science News
July 20, 2023 / 11:56 PM
Nuclear fallout from Manhattan Project's Trinity test reached 46 states, new study finds
By Adam Schrader
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July 20 (UPI) -- The nuclear fallout from the Manhattan Project's test, codenamed Trinity, of a plutonium-implosion device in July 1945 reached 46 states and crossed into Mexico and Canada within just days of detonation, a new study has found. It was the nation's first nuclear weapon test.

Researchers sought to examine the fallout from nuclear tests in New Mexico and Nevada from 1945 to 1962. More than 101 atmospheric nuclear weapon tests were conducted in the United States, which led to environmental contamination and exposed people to radiation...

​https://www.upi.com/Science_News/20...manhattan-project-trinity-test/3291689911160/

 

[Emily]

652 views Aug 9, 2012
Interview with Glen Milner of the Ground Zero Center for Nonviolent Action recorded May 12, 2002 on the train tracks outside the Bangor Trident Nuclear Submarine Base in Kitsap County, Washington.​

Milner predicts more Navy accidents in the future as the population surrounding the base grows. His other prediction is that 'tactical' nuclear weapons would be used someday. His first prediction is coming true (these tracks belong to the Navy and are used to transport high grade explosives and weapons grade uranium used as fuel in carriers):

Kitsap Sheriff @KitsapCoSheriff

A train collided with a large dump truck near the south end of Kitsap Lake around noon. The truck driver suffered minor injuries. The incident happened close to a quarry adjacent to the railroad tracks. We’ll have more information soon.














3:00 PM · Jun 14, 2023 7,485 Views

https://twitter.com/KitsapCoSheriff/status/1669072297653862409​

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[Pathfinder]

Putin filmed in China accompanied by officers with Russian nuclear briefcase

By Reuters
Published Oct. 20, 2023, 12:09 a.m. ET

Rare footage was shown on Wednesday of Russian President Vladimir Putin in Beijing accompanied by officers carrying the so-called nuclear briefcase which can be used to order a nuclear strike.

Putin, after a meeting with Chinese President Xi Jinping in Beijing, was filmed walking to another meeting surrounded by security and followed by two Russian naval officers in uniform each carrying a briefcase.

The camera zooms in on one of the briefcases.

Russia’s nuclear briefcase is traditionally carried by a naval officer.

Known as the “Cheget” (named after Mount Cheget in the Caucasus Mountains), the briefcase is with the president at all times but is rarely filmed.
...


https://nypost.com/2023/10/20/putin-filmed-in-china-with-russian-nuclear-briefcase/

 

[JJackson]

It should be noted that the US president also has one (AKA "The Football"), which is also carried by a military officer and taken with him when he travels.
It should also be considered that any use of a tactical nuclear would be expected to result in a nuclear retaliatory strike, which would rapidly escalate into a massive strategic nuclear exchange. The fallout from one weapon of any size launched by, or just attributed to a nuclear state, is not what should be under consideration. The answer to the Q. "How widespread would the fallout be?" is probably Global.