Search

Ohio Nitric Oxide Release: US CSB Opens Investigation

Posted on 6/16/2025 by Lion Technology Inc.

The US Chemical Safety and Hazard Investigation Board (CSB) opened an investigation into a release of nitric acid and nitrogen oxide gas that occurred June 11, 2025, at an explosives manufacturing plant in Ohio.

State officials say the releases occurred after “an unknown contaminant” entered a 5,000-gallon tank containing nitric acid, causing a chemical reaction that caused the release of nitrogen oxide gas.

A large plume of gas covered the facility and surrounding area. Officials ordered residents within three miles of the facility to evacuate, as well as hundreds in a nearby community. FAA temporarily restricted flights for a 30-nautical-mile radius around the facility.

The incident occurred at about 8:30 AM and officials lifted evacuation orders at about 4:30 PM.

Ohio Nitric Oxide Release: US CSB Opens Investigation

Complete EPA Regulations Training

Get clarity on the must-know environmental rules that industrial facilities deal with most often, including Clean Air Act compliance, NPDES and stormwater issues, chemical inventory reporting and emergency planning/preparedness, and more.

Learn at your own pace with Lion’s Complete Environmental Regulations online training or attend an instructor-led webinar.

Tags: chemical release, Chemical safety, CSB

Find a Post

Compliance Archives

Lion - Quotes

Excellent course. Very interactive. Explanations are great whether you get the questions wrong or right.

Gregory Thompson

Environmental, Health & Safety Regional Manager

Our instructor was very dynamic and kept everyone's interest. Hazmat shipping can be a dry, complicated topic but I was engaged the entire time.

Kimberly Arnao

Senior Director of EH&S

This was the 1st instructor that has made the topic actually enjoyable and easy to follow and understand. Far better than the "other" training providers our company has attended!

Lori Hardy

Process & Resource Administrator

The instructor was very very informative, helpful, understandable and pleasant. This course answered many questions I had, being new to this industry.

Frances Mona

Shipping Manager

Course instructor was better prepared and presented better than other trainers. Course manual and references were easier to use as well.

Marty Brownfield

Hazardous Waste Professional

My experience with Lion training, both online and in the classroom, is that they are far better organized and provide a better sequential explanation of the material.

Robert Roose

Manager, Dangerous Goods Transportation

Attending Lion Technology classes should be mandatory for every facility that ships or stores hazmat.

Genell Drake

Outbound Lead

The instructor did an excellent job presenting a very dry subject; keeping everyone interested and making it enjoyable.

Marc Bugg

Hazardous Waste Professional

The instructor's energy, enthusiasm, and knowledge of the subject make the class a great learning experience!

Brian Martinez

Warehouse Operator

Convenient; I can train when I want, where I want.

Barry Cook

Hazmat Shipping Professional

Download Our Latest Whitepaper

Start with these fundamentals to simplify hazardous materials shipping compliance.

Latest Whitepaper

By submitting your phone number, you agree to receive recurring marketing and training text messages. Consent to receive text messages is not required for any purchases. Text STOP at any time to cancel. Message and data rates may apply. View our Terms & Conditions and Privacy Policy.