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Trinity nuclear test’s fallout reached 46 states, Canada and Mexico, study finds
(www.japantimes.co.jp)
This is a most excellent place for technology news and articles.
Study referenced in NYT article that was the basis for the article above:
Fallout from U.S. atmospheric nuclear tests in New Mexico and Nevada (1945-1962)
https://arxiv.org/pdf/2307.11040.pdf