The Pima County Health Department working with the Arizona Poison and Drug Information Center have released the following guidance for any person who believes they may have been exposed to the toxic fumes associated with a hazardous materials spill on Interstate 10 Feb. 14.
The hazmat incident is ongoing as state and local emergency response agencies work to clean up the spill and remediate the accident scene.
The spill was nitric acid. Concentrated nitric acid is also called fuming red nitric acid and releases a gas, nitrogen dioxide. Nitrogen dioxide is a slightly irritant...