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Isotec/Sigma Aldrich Nitric Oxide Explosion
Miami Township, OH, September 21, 2003
Isotec/Sigma Aldrich Nitric Oxide Explosion
Aerial view of damage after an explosion destroys an underground distillation tower at the Isotec plant outside Dayton, Ohio.

Incident Description
On September 21, 2003, a violent explosion destroyed an underground distillation tower at the Isotec chemical manufacturing plant in Miami Township, Ohio, injuring one worker. The explosion ruptured a carbon monoxide gas pipe and led to a precautionary evacuation of about 2000 residents. The Isotec facility manufactures rare forms of oxygen and nitrogen, known as stable isotopes, which are used in research and medicine.

Investigation Status
CSB issued a case study report on this accident on August 24, 2004.

Reports Isotec Case Study
News Releases News Release August 24, 2004 - CSB Issues Case Study on September 2003 Explosion at Isotec Facility in Miami Township, OH
News Releases News Release September 29, 2003 - Board Investigators Returning to Site of Recent Gas Explosion near Dayton, Ohio
Presentations Slide Presentation from Community Briefing, Miami Township, OH, August 24, 2004