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Time Line - On This Walking Day
April 6th,1953
Nuclear weapons detonation.

On April 6th, 1953 the United States performed a nuclear bomb test. The test site was Nevada. The delivery method or operation type was air delivered. The test series was designated as Upshot/Knothole. The test name was Dixie.


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Time Line - On This Walking Day
April 6th,1954
Nuclear weapons detonation.

On April 6th, 1954 the United States performed a nuclear bomb test. The test site was Bikini atoll. The delivery method or operation type was surface. The test series was designated as Castle. The test name was Koon.


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Time Line - On This Walking Day
April 6th,1955
Nuclear weapons detonation.

On April 6th, 1955 the United States performed a nuclear bomb test. The test site was Nevada. The delivery method or operation type was air delivered. The test series was designated as Teapot. The test name was Ha.


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Time Line - On This Walking Day
April 6th,1957
Nuclear weapons detonation.

On April 6th, 1957 the former Soviet Union performed a nuclear bomb test. The test site was Siberia. The delivery method or operation type was atmospheric.


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Time Line - On This Walking Day
April 6th,1974
10,000 gallons of radioactive water dumped.

NSPC, Minnesota, USA - Northern States Power Company reactor dumped 10,000 gallons of radioactive water into the Mississippi River causing Minneapolis to close its water intake gates. From 1969-1974 the A.E.C. made a total of 10,320 inspections and found 3,704 installations with one or more violations (but imposed civil penalties or some other action a total of only 22 times). (N.Y. Times, 26th August, 1974). 1974 analysis "indicating the industry can anticipate a probable accident involving radioactive material in 1974 and perhaps as many as one per month in 2000" (Donald E. Reardon, Deputy Manager ERDA, S.F. Office, at Warren Committee hearing in November, 1975) (Thieberger, p.9)

Information provided by  " Nuclearfiles.org


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Time Line - On This Walking Day
April 6th,1977
Ruthenium 106 contamination.

Windscale, U.K. - Site and adjacent area contaminated by Ruthenium 106. (Legislative Research Service Paper, Parliamentary Bookstore, Canberra; Wakstein, C; "The Ecologist", May 1977 p.140)

Information provided by  " Nuclearfiles.org


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Time Line - On This Walking Day
April 6th,1977
Plutonium contamination blown into laboratory.

Windscale, UK - Plutonium contamination blown into laboratory after a reaction between plutonium nitrate and carbon powder in a sealed handling facility. (Thieberger, p.12; Parliamentary Service Paper, Parliamentary Bookstore, Canberra)

Information provided by  " Nuclearfiles.org


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Time Line - On This Walking Day
April 6th,1990
Incidents occurring on an average of 15 per month.

France - In France, where 75% of the electricity is of nuclear origin, the national planning bureau noted that already, beginning a few years ago, EDP have an over-capacity. EDF Director Delaporte recently justified this overcapacity by referring to export profits. In the leaked reports, however, the French Government admits to dumping prices for electricity exports. Prices for exported electricity are lower than production costs. EDF has begun a public relations campaign after an interrupted flow of reports of incidents in French nuclear power plants. In a French weekly journal it wrote of incidents occurring on an average of 15 per month. ("DeVolkshrant (Netherlands) 8/3/90; "TAZ" (FRG) 8/3/90; WISE 330 6/4/90).

Information provided by  " Nuclearfiles.org


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Time Line - On This Walking Day
April 6th,1993
Explosion at nuclear complex.

Explosion at the Tomsk-7 nuclear complex (Russia)


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Time Line - On This Walking Day
April 6th,1998
Cooling pump stops working.

A cooling pump stops working at a nuclear reactor of the the world's largest nuclear power plant about 135 miles northwest of Tokyo. The reactor is shut down. The Tokyo Electric Power Co. reports no radiation leak.


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