1968年图勒空军基地B-52坠毁事件

坠机现场的黑色冰面
1968年美国图勒空军基地B-52坠毁事件，是一起发生在1968年1月21日的飞机坠毁事件，事件中一架美国空军的B-52轰炸机坠毁。这架B-52轰炸机携带了4颗氢弹，执行冷战期间的铬穹顶行动，在飞越北冰洋的巴芬湾时，因为机舱起火迫使机组人员在迫降前放弃飞机。6名机组人员成功脱险，但其中1名因为没有弹射座椅，在试图跳伞时死亡。飞机随后坠入格陵兰岛西北部美军图勒空军基地附近的北极星海湾，导致4颗氢弹头破裂并扩散，产生大范围的放射性污染。
美国和丹麦启动了一次集中清理和恢复工作，但其中一颗弹头未被找到。事发后美国战略空军的铬穹顶行动立即终止，这更加突出了此任务的安全和政治风险。随后一系列的安全措施被加强，并研制出核武器上使用的更稳定的常规炸药。
1995年，有报告揭发丹麦政府有意对格陵兰的核武器事故保持缄默，这违反了1957年丹麦的无核区域政策。参与清理的工人因为核辐射产生相关疾病，一直在寻求赔偿。2009年3月，时代杂志认为这次事故是世界上最严重的一起核事故。

**相关条目**
 1961年B-52同温层堡垒轰炸机空难

**参考资料**

**书籍**
year=1984
*year=2004
*access-date=2011-01-21- isbn=0-226-10859-7- isbn=1-85109-490-3- access-date=2011-01-21- isbn=0-19-927190-9- access-date=2011-01-21
*year=2002- publisher=Oxford University Press- isbn=0-415-36120-6- isbn=0-7099-1468-7
*publisher=Osprey Publishing
*year=1980- isbn=1-4259-8510-6
*isbn=0-7099-1951-4
*access-date=2011-01-21- year=1995- isbn=0-8157-7774-4
*year=2002

**期刊及报告**
 deadurl=yes- archivedate=2007-06-09- AEC Observers' Interim Report of Thule Accident, United States Atomic Energy Commission, 1968-02-26, Report, retrieved on 2008-11-13- archivedate=2009-03-27
*dead-url=yes- archivedate=2007-06-09- cite paper|author=Eriksson, Mats|title=On Weapons Plutonium in the Artic Environment|publisher=Lund University|date=April 2002|location=Risø National Laboratory, Roskilde, Denmark|accessdate=2008-11-15|url=http://www.risoe.dk/rispubl/NUK/nukpdf/ris-r-1321.pdf|format=PDF|deadurl=yes|archiveurl=https://web.archive.org/web/20081218233551/http://www.risoe.dk/rispubl/NUK/nukpdf/ris-r-1321.pdf|archivedate=2008-12-18- Juel, Knud; Gerda Engholm & Hans Storm,  Register study of mortality and cancer incidence among Thule workersdate=20120209044128 , 2005, National Institute of Public Health (Denmark) & Cancer Society (Denmark), Retrieved on 2009-03-30 (Danish)- doi=10.1136/jech.46.4.336- date=April 1991- date=May 2006- archivedate=2009-04-09- archivedate=2009-04-19
*dead-url=no-  Thule Status Report, 1968-09-10, United States Atomic Energy Commission, Report, Retrieved on 2008-11-18- dead-url=no

**网页**
dead-url=no
*cite web|publisher=National Military Command Center via Nautilus.org|title=B-52 Crash|date=1968-01-24|accessdate=2009-04-12|location=Pentagon|url=http://www.nautilus.org/archives/library/security/foia/Denmark/State012368.PDF|deadurl=yes|archiveurl=https://web.archive.org/web/20081120103053/http://www.nautilus.org/archives/library/security/foia/denmark/State012368.pdf|archivedate=2008-11-20 
*archivedate=2011-07-25- cite news|url=http://cndyorks.gn.apc.org/yspace/articles/greenland3.htm|title=Greenlanders Wary of a New Role in U.S. Defenses|author=Brooke, James|publisher=New York Times|date=2000-09-18|accessdate=2008-11-11|deadurl=yes|archiveurl=https://web.archive.org/web/20090409005559/http://cndyorks.gn.apc.org/yspace/articles/greenland3.htm|archivedate=2009-04-09- dead-url=no- dead-url=no - cite web |title=Foreign Relations of the United States 1964–1968, Volume XII, Western Europe: Denmark |url=http://www.state.gov/r/pa/ho/frus/johnsonlb/xii/2199.htm |publisher=United States Department of State |accessdate=2008-11-12 |archive-url=https://web.archive.org/web/20090613125259/http://www.state.gov/r/pa/ho/frus/johnsonlb/xii/2199.htm |archive-date=2009-06-13 |dead-url=yes - dead-url=no - cite web|url=http://www.nautilus.org/archives/library/security/foia/DKhansen57.html|author=Hansen, H.C.|date=1957-11-16|accessdate=2009-03-20|title=Danish Prime Minister Gives Tacit Go-Ahead For U.S. Nuclear Weapons In Greenland|publisher= The Nautilius Institute|archiveurl=https://web.archive.org/web/20071106145717/http://www.nautilus.org/archives/library/security/foia/DKhansen57.html|archivedate=2007-11-06|deadurl=yes
*dead-url=no- deadurl=yes
*deadurl=yes- cite web|url=http://www.greenpeace.org/raw/content/international/press/reports/the-greenpeace-book-of-the-nuc.pdf|page=205|publisher=Greenpeace Books|author=May, John|title=The Greenpeace book of the nuclear age; The hidden history - the human cost|accessdate=2009-04-19|year=1989|archiveurl=https://www.webcitation.org/5gX4Pvpv6?url=http://www.greenpeace.org/raw/content/international/press/reports/the-greenpeace-book-of-the-nuc.pdf|archivedate=2009-05-05|deadurl=no- df=- cite news|publisher=BBC News|url=http://news.bbc.co.uk/2/hi/europe/6647421.stm|title=Denmark challenged over B52 crash|date=2007-05-11|accessdate=2008-11-18|author=Mulvey, Stephen|archive-date=2012-04-12|archive-url=https://web.archive.org/web/20120412042007/http://news.bbc.co.uk/2/hi/europe/6647421.stm|dead-url=no- archivedate=2011-07-19-  Petition 720/2002 by Jeffrey Carswelldate=20121009121509 , Committee on Petitions, European Parliament, 2004-  Petition 720/2002 by Jeffrey Carswelldate=20121009120430 , Committee on Petitions, European Parliament, 2007
*dead-url=no- cite web|url=http://www.gwu.edu/~nsarchiv/nukevault/ebb267/03.pdf|title=Project Crested Ice: The Thule Accident|date=1969-04-23|publisher=History & Research Division, Strategic Air Command (via National Security Archive)|accessdate=2009-03-19|archiveurl=https://www.webcitation.org/5gX4OJXVL?url=http://www.gwu.edu/~nsarchiv/nukevault/ebb267/03.pdf|archivedate=2009-05-05|deadurl=no
*accessdate=2011-01-21- Thule Nuclear Weapons Accident: Dose Evaluation Report, United States Air Force Medical Service, April 2001, Report, Retrieved on 2009-03-26- cite web|url=https://eed.llnl.gov/ans/2002/vantine/vantine_ans_2002.pdf|format=PDF|title=Relevance of Nuclear Weapons Clean-up Experience to Dirty Bomb Response|author=Vantine, Harry C & Thomas R. Crites|publisher=Lawrence Livermore National Laboratory|date=2003-03-26|deadurl=yes|archiveurl=https://web.archive.org/web/20090327090415/https://eed.llnl.gov/ans/2002/vantine/vantine_ans_2002.pdf|archivedate=2009-03-27|accessdate=2011-01-21

**拓展阅读**
 isbn=8711150459 - cite book |url=http://books.google.com/?id=gi7HARO8vTcC |title=Broken Arrow - The Declassified History of U.S. Nuclear Weapons Accidents |author=James C. Oskins, Michael H. Maggelet |isbn=1-4357-0361-8|publisher=Lulu|year=2008

**外部链接**
 文件和照片 - DoD Mishaps by the Armed Forces Radiobiology Research Institute- Declassified US government video of clean-up operationdate=20201115095900  BBC- National Institute for Radiation Protection (Denmark)date=20130726150748  - Thulesundhed.dk website by Ministry of Health and Prevention (Denmark) and the Department of Family and Health (Greenland) covering the impact of plutonium in the Thule area on the health of the local population