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

Lion courses are the standard to which all other workshops should strive for!

Brody Saleen

Registered Environmental Health Specialist

This course went above my expectations from the moment I walked in the door. The instructor led us through two days packed with useful compliance information.

Rachel Stewart

Environmental Manager

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

Gregory Thompson

Environmental, Health & Safety Regional Manager

I used the IT support number available and my issue was resolved within a few minutes. I don't see anything that could have made it better.

Danny Province

EHS Professional

Given the choice, I would do all coursework this way. In-person courses go very fast without the opportunity to pause or repeat anything.

Ellen Pelton

Chemical Laboratory Manager

The instructor created a great learning environment.

Avinash Thummadi

CAD & Environmental Manager

Lion Technology workshops are amazing!! You always learn so much, and the instructors are fantastic.

Dorothy Rurak

Environmental Specialist

I really enjoy your workshops. Thank you for such a great program and all the help Lion has provided me over the years!

George Chatman

Hazardous Material Pharmacy Technician

The instructor does a great job at presenting material in an approachable way. I have been able to save my company about $30,000 in the last year with what I have learned from Lion!

Curtis Ahonen

EHS&S Manager

Lion courses always set the bar for content, reference, and practical application. Membership and access to the experts is an added bonus.

John Brown, CSP

Director of Safety & Env Affairs

Download Our Latest Whitepaper

What to do before, during, and after a RCRA hazardous waste inspection to defend your site from rising State and Federal penalties.

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.