MYNORTHWEST NEWS

Building evacuated after toxic substance spills in South Seattle building

Jan 3, 2025, 11:53 AM | Updated: 12:32 pm

Photo: Crews are investigating an unknown substance in a South Seattle building....

Crews are investigating an unknown substance in a South Seattle building. (Photo: Sam Campbell, KIRO Newsradio)

(Photo: Sam Campbell, KIRO Newsradio)

Seattle Fire Department (SFD) crews were investigating an unknown toxic substance in South Seattle Friday. SFD first posted about the toxic substance in the 1700 block of Airport Way South in Seattle on X at approximately 11 a.m.

The substance, which spilled inside the medical sales/lab building, was confirmed by SFD as ammonia hydroxide. One person was evaluated after coming in contact with the substance but was not taken to the hospital.

KIRO Newsradio confirmed an employee was carrying the ammonia hydroxide solution which is commonly used to clean or regulate pH (acidity). The person came in contact but firefighters said they are “doing just fine.”

More from SFD: Camp Long lodge in Seattle was vandalized before fire

Earlier, the battalion chief told KIRO Newsradio the substance appeared to be a spilled cleaning product containing ammonia. Firefighters dumped out what the battalion chief called “high-tech kitty litter.”

More from Sam Campbell: Child sex offender from Utah arrested after routine patrol in Kitsap County

Workers have since filtered back inside. KIRO Newsradio’s Sam Campbell was at the scene.

This is a developing story, check back for updates.

Julia Dallas is a content editor at MyNorthwest. You can read her stories here. Follow Julia on X here and email her here

Sam Campbell is a reporter, editor and anchor at KIRO Newsradio. You can read more of Sam’s stories here. Follow Sam on X, or email him here

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