Overturned Truck Leaks Hazardous Nitric Acid: Shelter-In-Place Order Issued! ⚠️

Citizens record a truck that crashed on interstate in Arizona leaking nitric acid!

A shelter-in-place and some evacuations have been called for a one-mile area of Tucson following a crash and hazmat spill on Interstate 10 between Kolb and Rita roads in Tucson, Arizona.

On Tuesday, the Arizona Department of Public Safety confirmed a truck carrying liquid nitric acid crashed in the area, rolled over, and cracked open. Interstate 10 is closed in both directions in the area and there is no timetable for the highway to reopen, according to the Arizona Department of Transportation.

According to the National Library of Medicine, nitric acid is “very toxic by inhalation” and “corrosive to metals or tissue.”

“Prolonged exposure to low concentrations or short-term exposure to high concentrations may result in adverse health effects,” the NLM said on its webpage.

The main uses of the chemical are the production of fertilizers and explosives.

Residents in a one-mile area of the spill were urged to take shelter immediately.

Residents there are also advised to turn off any machines that bring in any outside air, like air conditioning and heaters.

According to an alert sent to residents in the area, the shelter-in-place could last for up to 12 hours. The crash happened around 2:45 p.m. and the shelter-in-place was called around 4 p.m.

The Pima County Sheriff’s Department instructed all personnel at the University of Arizona Science & Tech Park to evacuate.

The Vail School District said most of the students in the Rita Ranch area had already headed home, but children participating in after-school activities at the schools in the area of the alert were moved indoors.

The Vail district canceled all school activity buses and asked parents to pick up their students as soon as possible.

DPS said there have been some evacuations, but did not say where.

“The Department’s Hazardous Materials Response Unit, along with partner agencies are working together to mitigate the incident,” DPS said in an email. “Out of an abundance of caution, first responders are working to evacuate a perimeter around the area of the incident.”
MORE ON THE HAZARDOUS CHEMICAL NITRIC ACID:
Keep in mind that hazards change with the concentration of what was spilled. here’s the material safety data sheet for nitric acid:
https://www.fishersci.com/msds?productName=A467250%26productDescription=NITRIC

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