A chemical leak occurred at a powder plant in Ohio, releasing around 3,000 gallons of nitric acid. The leak caused a plume of nitric oxide, which is toxic when inhaled or absorbed into the skin.
Residents of the nearby village of Zaleski were evacuated due to the potential health risks. The situation is expected to last for a few hours and is dependent on wind conditions.
https://www.independent.co.uk/news/world/americas/chemical-leak-ohio-evacuation-b2768357.html
The Independent · Chemical leak prompts entire Ohio town to be evacuated